From 31d292282382314a111e5fe6b03fe313b6d14426 Mon Sep 17 00:00:00 2001 From: William Lynn Date: Wed, 3 May 2017 07:54:16 -0500 Subject: [PATCH] Version 1 of JSON No Exception --- CDL.java | 280 +++++++ Cookie.java | 170 +++++ CookieList.java | 90 +++ HTTP.java | 164 ++++ HTTPTokener.java | 77 ++ JSONArray.java | 1013 +++++++++++++++++++++++++ JSONException.java | 44 ++ JSONML.java | 470 ++++++++++++ JSONObject.java | 1807 ++++++++++++++++++++++++++++++++++++++++++++ JSONString.java | 19 + JSONStringer.java | 79 ++ JSONTokener.java | 447 +++++++++++ JSONWriter.java | 328 ++++++++ Property.java | 73 ++ README.txt | 73 ++ XML.java | 491 ++++++++++++ XMLTokener.java | 365 +++++++++ 17 files changed, 5990 insertions(+) create mode 100644 CDL.java create mode 100644 Cookie.java create mode 100644 CookieList.java create mode 100644 HTTP.java create mode 100644 HTTPTokener.java create mode 100644 JSONArray.java create mode 100644 JSONException.java create mode 100644 JSONML.java create mode 100644 JSONObject.java create mode 100644 JSONString.java create mode 100644 JSONStringer.java create mode 100644 JSONTokener.java create mode 100644 JSONWriter.java create mode 100644 Property.java create mode 100644 README.txt create mode 100644 XML.java create mode 100644 XMLTokener.java diff --git a/CDL.java b/CDL.java new file mode 100644 index 0000000..b2089ec --- /dev/null +++ b/CDL.java @@ -0,0 +1,280 @@ +package jsonnoexception; + + +/* +Copyright (c) 2002 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +/** + * This provides static methods to convert comma delimited text into a + * JSONArray, and to convert a JSONArray into comma delimited text. Comma + * delimited text is a very popular format for data interchange. It is + * understood by most database, spreadsheet, and organizer programs. + *

+ * Each row of text represents a row in a table or a data record. Each row + * ends with a NEWLINE character. Each row contains one or more values. + * Values are separated by commas. A value can contain any character except + * for comma, unless is is wrapped in single quotes or double quotes. + *

+ * The first row usually contains the names of the columns. + *

+ * A comma delimited list can be converted into a JSONArray of JSONObjects. + * The names for the elements in the JSONObjects can be taken from the names + * in the first row. + * @author JSON.org + * @version 2015-05-01 + */ +public class CDL { + + /** + * Get the next value. The value can be wrapped in quotes. The value can + * be empty. + * @param x A JSONTokener of the source text. + * @return The value string, or null if empty. + * @throws JSONException if the quoted string is badly formed. + */ + private static String getValue(JSONTokener x) throws JSONException { + char c; + char q; + StringBuffer sb; + do { + c = x.next(); + } while (c == ' ' || c == '\t'); + switch (c) { + case 0: + return null; + case '"': + case '\'': + q = c; + sb = new StringBuffer(); + for (;;) { + c = x.next(); + if (c == q) { + break; + } + if (c == 0 || c == '\n' || c == '\r') { + throw x.syntaxError("Missing close quote '" + q + "'."); + } + sb.append(c); + } + return sb.toString(); + case ',': + x.back(); + return ""; + default: + x.back(); + return x.nextTo(','); + } + } + + /** + * Produce a JSONArray of strings from a row of comma delimited values. + * @param x A JSONTokener of the source text. + * @return A JSONArray of strings. + * @throws JSONException + */ + public static JSONArray rowToJSONArray(JSONTokener x) throws JSONException { + JSONArray ja = new JSONArray(); + for (;;) { + String value = getValue(x); + char c = x.next(); + if (value == null || + (ja.length() == 0 && value.length() == 0 && c != ',')) { + return null; + } + ja.put(value); + for (;;) { + if (c == ',') { + break; + } + if (c != ' ') { + if (c == '\n' || c == '\r' || c == 0) { + return ja; + } + throw x.syntaxError("Bad character '" + c + "' (" + + (int)c + ")."); + } + c = x.next(); + } + } + } + + /** + * Produce a JSONObject from a row of comma delimited text, using a + * parallel JSONArray of strings to provides the names of the elements. + * @param names A JSONArray of names. This is commonly obtained from the + * first row of a comma delimited text file using the rowToJSONArray + * method. + * @param x A JSONTokener of the source text. + * @return A JSONObject combining the names and values. + * @throws JSONException + */ + public static JSONObject rowToJSONObject(JSONArray names, JSONTokener x) + throws JSONException { + JSONArray ja = rowToJSONArray(x); + return ja != null ? ja.toJSONObject(names) : null; + } + + /** + * Produce a comma delimited text row from a JSONArray. Values containing + * the comma character will be quoted. Troublesome characters may be + * removed. + * @param ja A JSONArray of strings. + * @return A string ending in NEWLINE. + */ + public static String rowToString(JSONArray ja) { + StringBuilder sb = new StringBuilder(); + for (int i = 0; i < ja.length(); i += 1) { + if (i > 0) { + sb.append(','); + } + Object object = ja.opt(i); + if (object != null) { + String string = object.toString(); + if (string.length() > 0 && (string.indexOf(',') >= 0 || + string.indexOf('\n') >= 0 || string.indexOf('\r') >= 0 || + string.indexOf(0) >= 0 || string.charAt(0) == '"')) { + sb.append('"'); + int length = string.length(); + for (int j = 0; j < length; j += 1) { + char c = string.charAt(j); + if (c >= ' ' && c != '"') { + sb.append(c); + } + } + sb.append('"'); + } else { + sb.append(string); + } + } + } + sb.append('\n'); + return sb.toString(); + } + + /** + * Produce a JSONArray of JSONObjects from a comma delimited text string, + * using the first row as a source of names. + * @param string The comma delimited text. + * @return A JSONArray of JSONObjects. + * @throws JSONException + */ + public static JSONArray toJSONArray(String string) throws JSONException { + return toJSONArray(new JSONTokener(string)); + } + + /** + * Produce a JSONArray of JSONObjects from a comma delimited text string, + * using the first row as a source of names. + * @param x The JSONTokener containing the comma delimited text. + * @return A JSONArray of JSONObjects. + * @throws JSONException + */ + public static JSONArray toJSONArray(JSONTokener x) throws JSONException { + return toJSONArray(rowToJSONArray(x), x); + } + + /** + * Produce a JSONArray of JSONObjects from a comma delimited text string + * using a supplied JSONArray as the source of element names. + * @param names A JSONArray of strings. + * @param string The comma delimited text. + * @return A JSONArray of JSONObjects. + * @throws JSONException + */ + public static JSONArray toJSONArray(JSONArray names, String string) + throws JSONException { + return toJSONArray(names, new JSONTokener(string)); + } + + /** + * Produce a JSONArray of JSONObjects from a comma delimited text string + * using a supplied JSONArray as the source of element names. + * @param names A JSONArray of strings. + * @param x A JSONTokener of the source text. + * @return A JSONArray of JSONObjects. + * @throws JSONException + */ + public static JSONArray toJSONArray(JSONArray names, JSONTokener x) + throws JSONException { + if (names == null || names.length() == 0) { + return null; + } + JSONArray ja = new JSONArray(); + for (;;) { + JSONObject jo = rowToJSONObject(names, x); + if (jo == null) { + break; + } + ja.put(jo); + } + if (ja.length() == 0) { + return null; + } + return ja; + } + + + /** + * Produce a comma delimited text from a JSONArray of JSONObjects. The + * first row will be a list of names obtained by inspecting the first + * JSONObject. + * @param ja A JSONArray of JSONObjects. + * @return A comma delimited text. + * @throws JSONException + */ + public static String toString(JSONArray ja) throws JSONException { + JSONObject jo = ja.optJSONObject(0); + if (jo != null) { + JSONArray names = jo.names(); + if (names != null) { + return rowToString(names) + toString(names, ja); + } + } + return null; + } + + /** + * Produce a comma delimited text from a JSONArray of JSONObjects using + * a provided list of names. The list of names is not included in the + * output. + * @param names A JSONArray of strings. + * @param ja A JSONArray of JSONObjects. + * @return A comma delimited text. + * @throws JSONException + */ + public static String toString(JSONArray names, JSONArray ja) + throws JSONException { + if (names == null || names.length() == 0) { + return null; + } + StringBuffer sb = new StringBuffer(); + for (int i = 0; i < ja.length(); i += 1) { + JSONObject jo = ja.optJSONObject(i); + if (jo != null) { + sb.append(rowToString(jo.toJSONArray(names))); + } + } + return sb.toString(); + } +} diff --git a/Cookie.java b/Cookie.java new file mode 100644 index 0000000..11246f9 --- /dev/null +++ b/Cookie.java @@ -0,0 +1,170 @@ +package jsonnoexception; + + +/* +Copyright (c) 2002 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +/** + * Convert a web browser cookie specification to a JSONObject and back. + * JSON and Cookies are both notations for name/value pairs. + * @author JSON.org + * @version 2014-05-03 + */ +public class Cookie { + + /** + * Produce a copy of a string in which the characters '+', '%', '=', ';' + * and control characters are replaced with "%hh". This is a gentle form + * of URL encoding, attempting to cause as little distortion to the + * string as possible. The characters '=' and ';' are meta characters in + * cookies. By convention, they are escaped using the URL-encoding. This is + * only a convention, not a standard. Often, cookies are expected to have + * encoded values. We encode '=' and ';' because we must. We encode '%' and + * '+' because they are meta characters in URL encoding. + * @param string The source string. + * @return The escaped result. + */ + public static String escape(String string) { + char c; + String s = string.trim(); + int length = s.length(); + StringBuilder sb = new StringBuilder(length); + for (int i = 0; i < length; i += 1) { + c = s.charAt(i); + if (c < ' ' || c == '+' || c == '%' || c == '=' || c == ';') { + sb.append('%'); + sb.append(Character.forDigit((char)((c >>> 4) & 0x0f), 16)); + sb.append(Character.forDigit((char)(c & 0x0f), 16)); + } else { + sb.append(c); + } + } + return sb.toString(); + } + + + /** + * Convert a cookie specification string into a JSONObject. The string + * will contain a name value pair separated by '='. The name and the value + * will be unescaped, possibly converting '+' and '%' sequences. The + * cookie properties may follow, separated by ';', also represented as + * name=value (except the secure property, which does not have a value). + * The name will be stored under the key "name", and the value will be + * stored under the key "value". This method does not do checking or + * validation of the parameters. It only converts the cookie string into + * a JSONObject. + * @param string The cookie specification string. + * @return A JSONObject containing "name", "value", and possibly other + * members. + * @throws JSONException + */ + public static JSONObject toJSONObject(String string) throws JSONException { + String name; + JSONObject jo = new JSONObject(); + Object value; + JSONTokener x = new JSONTokener(string); + jo.put("name", x.nextTo('=')); + x.next('='); + jo.put("value", x.nextTo(';')); + x.next(); + while (x.more()) { + name = unescape(x.nextTo("=;")); + if (x.next() != '=') { + if (name.equals("secure")) { + value = Boolean.TRUE; + } else { + throw x.syntaxError("Missing '=' in cookie parameter."); + } + } else { + value = unescape(x.nextTo(';')); + x.next(); + } + jo.put(name, value); + } + return jo; + } + + + /** + * Convert a JSONObject into a cookie specification string. The JSONObject + * must contain "name" and "value" members. + * If the JSONObject contains "expires", "domain", "path", or "secure" + * members, they will be appended to the cookie specification string. + * All other members are ignored. + * @param jo A JSONObject + * @return A cookie specification string + * @throws JSONException + */ + public static String toString(JSONObject jo) throws JSONException { + StringBuilder sb = new StringBuilder(); + + sb.append(escape(jo.getString("name"))); + sb.append("="); + sb.append(escape(jo.getString("value"))); + if (jo.has("expires")) { + sb.append(";expires="); + sb.append(jo.getString("expires")); + } + if (jo.has("domain")) { + sb.append(";domain="); + sb.append(escape(jo.getString("domain"))); + } + if (jo.has("path")) { + sb.append(";path="); + sb.append(escape(jo.getString("path"))); + } + if (jo.optBoolean("secure")) { + sb.append(";secure"); + } + return sb.toString(); + } + + /** + * Convert %hh sequences to single characters, and + * convert plus to space. + * @param string A string that may contain + * + (plus) and + * %hh sequences. + * @return The unescaped string. + */ + public static String unescape(String string) { + int length = string.length(); + StringBuilder sb = new StringBuilder(length); + for (int i = 0; i < length; ++i) { + char c = string.charAt(i); + if (c == '+') { + c = ' '; + } else if (c == '%' && i + 2 < length) { + int d = JSONTokener.dehexchar(string.charAt(i + 1)); + int e = JSONTokener.dehexchar(string.charAt(i + 2)); + if (d >= 0 && e >= 0) { + c = (char)(d * 16 + e); + i += 2; + } + } + sb.append(c); + } + return sb.toString(); + } +} diff --git a/CookieList.java b/CookieList.java new file mode 100644 index 0000000..ed0ebf0 --- /dev/null +++ b/CookieList.java @@ -0,0 +1,90 @@ +package jsonnoexception; + + +/* +Copyright (c) 2002 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +import java.util.Iterator; + +/** + * Convert a web browser cookie list string to a JSONObject and back. + * @author JSON.org + * @version 2014-05-03 + */ +public class CookieList { + + /** + * Convert a cookie list into a JSONObject. A cookie list is a sequence + * of name/value pairs. The names are separated from the values by '='. + * The pairs are separated by ';'. The names and the values + * will be unescaped, possibly converting '+' and '%' sequences. + * + * To add a cookie to a cooklist, + * cookielistJSONObject.put(cookieJSONObject.getString("name"), + * cookieJSONObject.getString("value")); + * @param string A cookie list string + * @return A JSONObject + * @throws JSONException + */ + public static JSONObject toJSONObject(String string) throws JSONException { + JSONObject jo = new JSONObject(); + JSONTokener x = new JSONTokener(string); + while (x.more()) { + String name = Cookie.unescape(x.nextTo('=')); + x.next('='); + jo.put(name, Cookie.unescape(x.nextTo(';'))); + x.next(); + } + return jo; + } + + /** + * Convert a JSONObject into a cookie list. A cookie list is a sequence + * of name/value pairs. The names are separated from the values by '='. + * The pairs are separated by ';'. The characters '%', '+', '=', and ';' + * in the names and values are replaced by "%hh". + * @param jo A JSONObject + * @return A cookie list string + * @throws JSONException + */ + public static String toString(JSONObject jo) throws JSONException { + boolean b = false; + Iterator keys = jo.keys(); + String string; + StringBuilder sb = new StringBuilder(); + while (keys.hasNext()) { + string = keys.next(); + if (!jo.isNull(string)) { + if (b) { + sb.append(';'); + } + sb.append(Cookie.escape(string)); + sb.append("="); + sb.append(Cookie.escape(jo.getString(string))); + b = true; + } + } + return sb.toString(); + } +} diff --git a/HTTP.java b/HTTP.java new file mode 100644 index 0000000..cbdef68 --- /dev/null +++ b/HTTP.java @@ -0,0 +1,164 @@ +package jsonnoexception; + + +/* +Copyright (c) 2002 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +import java.util.Iterator; + +/** + * Convert an HTTP header to a JSONObject and back. + * @author JSON.org + * @version 2014-05-03 + */ +public class HTTP { + + /** Carriage return/line feed. */ + public static final String CRLF = "\r\n"; + + /** + * Convert an HTTP header string into a JSONObject. It can be a request + * header or a response header. A request header will contain + * 

{
+     *    Method: "POST" (for example),
+     *    "Request-URI": "/" (for example),
+     *    "HTTP-Version": "HTTP/1.1" (for example)
+     * }
+ * A response header will contain + * 
{
+     *    "HTTP-Version": "HTTP/1.1" (for example),
+     *    "Status-Code": "200" (for example),
+     *    "Reason-Phrase": "OK" (for example)
+     * }
+ * In addition, the other parameters in the header will be captured, using + * the HTTP field names as JSON names, so that 
+     *    Date: Sun, 26 May 2002 18:06:04 GMT
+     *    Cookie: Q=q2=PPEAsg--; B=677gi6ouf29bn&b=2&f=s
+     *    Cache-Control: no-cache
+ * become + * 
{...
+     *    Date: "Sun, 26 May 2002 18:06:04 GMT",
+     *    Cookie: "Q=q2=PPEAsg--; B=677gi6ouf29bn&b=2&f=s",
+     *    "Cache-Control": "no-cache",
+     * ...}
+ * It does no further checking or conversion. It does not parse dates. + * It does not do '%' transforms on URLs. + * @param string An HTTP header string. + * @return A JSONObject containing the elements and attributes + * of the XML string. + * @throws JSONException + */ + public static JSONObject toJSONObject(String string) throws JSONException { + JSONObject jo = new JSONObject(); + HTTPTokener x = new HTTPTokener(string); + String token; + + token = x.nextToken(); + if (token.toUpperCase().startsWith("HTTP")) { + +// Response + + jo.put("HTTP-Version", token); + jo.put("Status-Code", x.nextToken()); + jo.put("Reason-Phrase", x.nextTo('\0')); + x.next(); + + } else { + +// Request + + jo.put("Method", token); + jo.put("Request-URI", x.nextToken()); + jo.put("HTTP-Version", x.nextToken()); + } + +// Fields + + while (x.more()) { + String name = x.nextTo(':'); + x.next(':'); + jo.put(name, x.nextTo('\0')); + x.next(); + } + return jo; + } + + + /** + * Convert a JSONObject into an HTTP header. A request header must contain + * 
{
+     *    Method: "POST" (for example),
+     *    "Request-URI": "/" (for example),
+     *    "HTTP-Version": "HTTP/1.1" (for example)
+     * }
+ * A response header must contain + * 
{
+     *    "HTTP-Version": "HTTP/1.1" (for example),
+     *    "Status-Code": "200" (for example),
+     *    "Reason-Phrase": "OK" (for example)
+     * }
+ * Any other members of the JSONObject will be output as HTTP fields. + * The result will end with two CRLF pairs. + * @param jo A JSONObject + * @return An HTTP header string. + * @throws JSONException if the object does not contain enough + * information. + */ + public static String toString(JSONObject jo) throws JSONException { + Iterator keys = jo.keys(); + String string; + StringBuilder sb = new StringBuilder(); + if (jo.has("Status-Code") && jo.has("Reason-Phrase")) { + sb.append(jo.getString("HTTP-Version")); + sb.append(' '); + sb.append(jo.getString("Status-Code")); + sb.append(' '); + sb.append(jo.getString("Reason-Phrase")); + } else if (jo.has("Method") && jo.has("Request-URI")) { + sb.append(jo.getString("Method")); + sb.append(' '); + sb.append('"'); + sb.append(jo.getString("Request-URI")); + sb.append('"'); + sb.append(' '); + sb.append(jo.getString("HTTP-Version")); + } else { + throw new JSONException("Not enough material for an HTTP header."); + } + sb.append(CRLF); + while (keys.hasNext()) { + string = keys.next(); + if (!"HTTP-Version".equals(string) && !"Status-Code".equals(string) && + !"Reason-Phrase".equals(string) && !"Method".equals(string) && + !"Request-URI".equals(string) && !jo.isNull(string)) { + sb.append(string); + sb.append(": "); + sb.append(jo.getString(string)); + sb.append(CRLF); + } + } + sb.append(CRLF); + return sb.toString(); + } +} diff --git a/HTTPTokener.java b/HTTPTokener.java new file mode 100644 index 0000000..ab5c1e0 --- /dev/null +++ b/HTTPTokener.java @@ -0,0 +1,77 @@ +package jsonnoexception; + +/* +Copyright (c) 2002 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +/** + * The HTTPTokener extends the JSONTokener to provide additional methods + * for the parsing of HTTP headers. + * @author JSON.org + * @version 2014-05-03 + */ +public class HTTPTokener extends JSONTokener { + + /** + * Construct an HTTPTokener from a string. + * @param string A source string. + */ + public HTTPTokener(String string) { + super(string); + } + + + /** + * Get the next token or string. This is used in parsing HTTP headers. + * @throws JSONException + * @return A String. + */ + public String nextToken() throws JSONException { + char c; + char q; + StringBuilder sb = new StringBuilder(); + do { + c = next(); + } while (Character.isWhitespace(c)); + if (c == '"' || c == '\'') { + q = c; + for (;;) { + c = next(); + if (c < ' ') { + throw syntaxError("Unterminated string."); + } + if (c == q) { + return sb.toString(); + } + sb.append(c); + } + } + for (;;) { + if (c == 0 || Character.isWhitespace(c)) { + return sb.toString(); + } + sb.append(c); + c = next(); + } + } +} diff --git a/JSONArray.java b/JSONArray.java new file mode 100644 index 0000000..5f962d8 --- /dev/null +++ b/JSONArray.java @@ -0,0 +1,1013 @@ +package jsonnoexception; + + +/* + Copyright (c) 2002 JSON.org + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all + copies or substantial portions of the Software. + + The Software shall be used for Good, not Evil. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. + */ + +import java.io.IOException; +import java.io.StringWriter; +import java.io.Writer; +import java.lang.reflect.Array; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Iterator; +import java.util.Map; + +/** + * A JSONArray is an ordered sequence of values. Its external text form is a + * string wrapped in square brackets with commas separating the values. The + * internal form is an object having get and opt + * methods for accessing the values by index, and put methods for + * adding or replacing values. The values can be any of these types: + * Boolean, JSONArray, JSONObject, + * Number, String, or the + * JSONObject.NULL object. + *

+ * The constructor can convert a JSON text into a Java object. The + * toString method converts to JSON text. + *

+ * A get method returns a value if one can be found, and throws an + * exception if one cannot be found. An opt method returns a + * default value instead of throwing an exception, and so is useful for + * obtaining optional values. + *

+ * The generic get() and opt() methods return an + * object which you can cast or query for type. There are also typed + * get and opt methods that do type checking and type + * coercion for you. + *

+ * The texts produced by the toString methods strictly conform to + * JSON syntax rules. The constructors are more forgiving in the texts they will + * accept: + *

+ * + * @author JSON.org + * @version 2014-05-03 + */ +public class JSONArray { + + /** + * The arrayList where the JSONArray's properties are kept. + */ + private final ArrayList myArrayList; + + /** + * Construct an empty JSONArray. + */ + public JSONArray() { + this.myArrayList = new ArrayList(); + } + + /** + * Construct a JSONArray from a JSONTokener. + * + * @param x + * A JSONTokener + * @throws JSONException + * If there is a syntax error. + */ + public JSONArray(JSONTokener x) throws JSONException { + this(); + if (x.nextClean() != '[') { + throw x.syntaxError("A JSONArray text must start with '['"); + } + if (x.nextClean() != ']') { + x.back(); + for (;;) { + if (x.nextClean() == ',') { + x.back(); + this.myArrayList.add(JSONObject.NULL); + } else { + x.back(); + this.myArrayList.add(x.nextValue()); + } + switch (x.nextClean()) { + case ',': + if (x.nextClean() == ']') { + return; + } + x.back(); + break; + case ']': + return; + default: + throw x.syntaxError("Expected a ',' or ']'"); + } + } + } + } + + /** + * Construct a JSONArray from a source JSON text. + * + * @param source + * A string that begins with [ (left + * bracket) and ends with ] + *  (right bracket). + * @throws JSONException + * If there is a syntax error. + */ + public JSONArray(String source) throws JSONException { + this(new JSONTokener(source)); + } + + /** + * Construct a JSONArray from a Collection. + * + * @param collection + * A Collection. + */ + public JSONArray(Collection collection) { + this.myArrayList = new ArrayList(); + if (collection != null) { + Iterator iter = collection.iterator(); + while (iter.hasNext()) { + this.myArrayList.add(JSONObject.wrap(iter.next())); + } + } + } + + /** + * Construct a JSONArray from an array + * + * @throws JSONException + * If not an array. + */ + public JSONArray(Object array) throws JSONException { + this(); + if (array.getClass().isArray()) { + int length = Array.getLength(array); + for (int i = 0; i < length; i += 1) { + this.put(JSONObject.wrap(Array.get(array, i))); + } + } else { + throw new JSONException( + "JSONArray initial value should be a string or collection or array."); + } + } + + /** + * Get the object value associated with an index. + * + * @param index + * The index must be between 0 and length() - 1. + * @return An object value. + * @throws JSONException + * If there is no value for the index. + */ + public Object get(int index) throws JSONException { + Object object = this.opt(index); + if (object == null) { + throw new JSONException("JSONArray[" + index + "] not found."); + } + return object; + } + + /** + * Get the boolean value associated with an index. The string values "true" + * and "false" are converted to boolean. + * + * @param index + * The index must be between 0 and length() - 1. + * @return The truth. + * @throws JSONException + * If there is no value for the index or if the value is not + * convertible to boolean. + */ + public boolean getBoolean(int index) throws JSONException { + Object object = this.get(index); + if (object.equals(Boolean.FALSE) + || (object instanceof String && ((String) object) + .equalsIgnoreCase("false"))) { + return false; + } else if (object.equals(Boolean.TRUE) + || (object instanceof String && ((String) object) + .equalsIgnoreCase("true"))) { + return true; + } + throw new JSONException("JSONArray[" + index + "] is not a boolean."); + } + + /** + * Get the double value associated with an index. + * + * @param index + * The index must be between 0 and length() - 1. + * @return The value. + * @throws JSONException + * If the key is not found or if the value cannot be converted + * to a number. + */ + public double getDouble(int index) throws JSONException { + Object object = this.get(index); + try { + return object instanceof Number ? ((Number) object).doubleValue() + : Double.parseDouble((String) object); + } catch (Exception e) { + throw new JSONException("JSONArray[" + index + "] is not a number."); + } + } + + /** + * Get the int value associated with an index. + * + * @param index + * The index must be between 0 and length() - 1. + * @return The value. + * @throws JSONException + * If the key is not found or if the value is not a number. + */ + public int getInt(int index) throws JSONException { + Object object = this.get(index); + try { + return object instanceof Number ? ((Number) object).intValue() + : Integer.parseInt((String) object); + } catch (Exception e) { + throw new JSONException("JSONArray[" + index + "] is not a number."); + } + } + + /** + * Get the JSONArray associated with an index. + * + * @param index + * The index must be between 0 and length() - 1. + * @return A JSONArray value. + * @throws JSONException + * If there is no value for the index. or if the value is not a + * JSONArray + */ + public JSONArray getJSONArray(int index) throws JSONException { + Object object = this.get(index); + if (object instanceof JSONArray) { + return (JSONArray) object; + } + throw new JSONException("JSONArray[" + index + "] is not a JSONArray."); + } + + //Description: this will search the entire object recursively and return the first instance of the object named name + // returns null if no object was found + public Object getJSONObjectRecursive(String name) + { + for ( int i=0; i < this.length(); i++ ) + { + Object object = this.get(i); + if (object instanceof JSONArray) + { + JSONArray innerObject = (JSONArray) object; + Object result = innerObject.getJSONObjectRecursive(name); + if ( result != null ) + return result; + } + else if (object instanceof JSONObject) + { + JSONObject innerObject = (JSONObject) object; + Object result = innerObject.getJSONObjectRecursive(name); + if ( result != null ) + return result; + } + } + return null; + } + + private boolean matchName(String[] arrayNames, String name ) + { + for ( int i=0; i < arrayNames.length; i++ ) + { + if ( arrayNames[i].equals(name)) + return true; + } + return false; + } + + /** + * Get the JSONObject associated with an index. + * + * @param index + * subscript + * @return A JSONObject value. + * @throws JSONException + * If there is no value for the index or if the value is not a + * JSONObject + */ + public JSONObject getJSONObject(int index) throws JSONException { + Object object = this.get(index); + if (object instanceof JSONObject) { + return (JSONObject) object; + } + throw new JSONException("JSONArray[" + index + "] is not a JSONObject."); + } + + /** + * Get the long value associated with an index. + * + * @param index + * The index must be between 0 and length() - 1. + * @return The value. + * @throws JSONException + * If the key is not found or if the value cannot be converted + * to a number. + */ + public long getLong(int index) throws JSONException { + Object object = this.get(index); + try { + return object instanceof Number ? ((Number) object).longValue() + : Long.parseLong((String) object); + } catch (Exception e) { + throw new JSONException("JSONArray[" + index + "] is not a number."); + } + } + + /** + * Get the string associated with an index. + * + * @param index + * The index must be between 0 and length() - 1. + * @return A string value. + * @throws JSONException + * If there is no string value for the index. + */ + public String getString(int index) throws JSONException { + Object object = this.get(index); + if (object instanceof String) { + return (String) object; + } + throw new JSONException("JSONArray[" + index + "] not a string."); + } + + /** + * Determine if the value is null. + * + * @param index + * The index must be between 0 and length() - 1. + * @return true if the value at the index is null, or if there is no value. + */ + public boolean isNull(int index) { + return JSONObject.NULL.equals(this.opt(index)); + } + + /** + * Make a string from the contents of this JSONArray. The + * separator string is inserted between each element. Warning: + * This method assumes that the data structure is acyclical. + * + * @param separator + * A string that will be inserted between the elements. + * @return a string. + * @throws JSONException + * If the array contains an invalid number. + */ + public String join(String separator) throws JSONException { + int len = this.length(); + StringBuilder sb = new StringBuilder(); + + for (int i = 0; i < len; i += 1) { + if (i > 0) { + sb.append(separator); + } + sb.append(JSONObject.valueToString(this.myArrayList.get(i))); + } + return sb.toString(); + } + + /** + * Get the number of elements in the JSONArray, included nulls. + * + * @return The length (or size). + */ + public int length() { + return this.myArrayList.size(); + } + + /** + * Get the optional object value associated with an index. + * + * @param index + * The index must be between 0 and length() - 1. + * @return An object value, or null if there is no object at that index. + */ + public Object opt(int index) { + return (index < 0 || index >= this.length()) ? null : this.myArrayList + .get(index); + } + + /** + * Get the optional boolean value associated with an index. It returns false + * if there is no value at that index, or if the value is not Boolean.TRUE + * or the String "true". + * + * @param index + * The index must be between 0 and length() - 1. + * @return The truth. + */ + public boolean optBoolean(int index) { + return this.optBoolean(index, false); + } + + /** + * Get the optional boolean value associated with an index. It returns the + * defaultValue if there is no value at that index or if it is not a Boolean + * or the String "true" or "false" (case insensitive). + * + * @param index + * The index must be between 0 and length() - 1. + * @param defaultValue + * A boolean default. + * @return The truth. + */ + public boolean optBoolean(int index, boolean defaultValue) { + try { + return this.getBoolean(index); + } catch (Exception e) { + return defaultValue; + } + } + + /** + * Get the optional double value associated with an index. NaN is returned + * if there is no value for the index, or if the value is not a number and + * cannot be converted to a number. + * + * @param index + * The index must be between 0 and length() - 1. + * @return The value. + */ + public double optDouble(int index) { + return this.optDouble(index, Double.NaN); + } + + /** + * Get the optional double value associated with an index. The defaultValue + * is returned if there is no value for the index, or if the value is not a + * number and cannot be converted to a number. + * + * @param index + * subscript + * @param defaultValue + * The default value. + * @return The value. + */ + public double optDouble(int index, double defaultValue) { + try { + return this.getDouble(index); + } catch (Exception e) { + return defaultValue; + } + } + + /** + * Get the optional int value associated with an index. Zero is returned if + * there is no value for the index, or if the value is not a number and + * cannot be converted to a number. + * + * @param index + * The index must be between 0 and length() - 1. + * @return The value. + */ + public int optInt(int index) { + return this.optInt(index, 0); + } + + /** + * Get the optional int value associated with an index. The defaultValue is + * returned if there is no value for the index, or if the value is not a + * number and cannot be converted to a number. + * + * @param index + * The index must be between 0 and length() - 1. + * @param defaultValue + * The default value. + * @return The value. + */ + public int optInt(int index, int defaultValue) { + try { + return this.getInt(index); + } catch (Exception e) { + return defaultValue; + } + } + + /** + * Get the optional JSONArray associated with an index. + * + * @param index + * subscript + * @return A JSONArray value, or null if the index has no value, or if the + * value is not a JSONArray. + */ + public JSONArray optJSONArray(int index) { + Object o = this.opt(index); + return o instanceof JSONArray ? (JSONArray) o : null; + } + + /** + * Get the optional JSONObject associated with an index. Null is returned if + * the key is not found, or null if the index has no value, or if the value + * is not a JSONObject. + * + * @param index + * The index must be between 0 and length() - 1. + * @return A JSONObject value. + */ + public JSONObject optJSONObject(int index) { + Object o = this.opt(index); + return o instanceof JSONObject ? (JSONObject) o : null; + } + + /** + * Get the optional long value associated with an index. Zero is returned if + * there is no value for the index, or if the value is not a number and + * cannot be converted to a number. + * + * @param index + * The index must be between 0 and length() - 1. + * @return The value. + */ + public long optLong(int index) { + return this.optLong(index, 0); + } + + /** + * Get the optional long value associated with an index. The defaultValue is + * returned if there is no value for the index, or if the value is not a + * number and cannot be converted to a number. + * + * @param index + * The index must be between 0 and length() - 1. + * @param defaultValue + * The default value. + * @return The value. + */ + public long optLong(int index, long defaultValue) { + try { + return this.getLong(index); + } catch (Exception e) { + return defaultValue; + } + } + + /** + * Get the optional string value associated with an index. It returns an + * empty string if there is no value at that index. If the value is not a + * string and is not null, then it is coverted to a string. + * + * @param index + * The index must be between 0 and length() - 1. + * @return A String value. + */ + public String optString(int index) { + return this.optString(index, ""); + } + + /** + * Get the optional string associated with an index. The defaultValue is + * returned if the key is not found. + * + * @param index + * The index must be between 0 and length() - 1. + * @param defaultValue + * The default value. + * @return A String value. + */ + public String optString(int index, String defaultValue) { + Object object = this.opt(index); + return JSONObject.NULL.equals(object) ? defaultValue : object + .toString(); + } + + /** + * Append a boolean value. This increases the array's length by one. + * + * @param value + * A boolean value. + * @return this. + */ + public JSONArray put(boolean value) { + this.put(value ? Boolean.TRUE : Boolean.FALSE); + return this; + } + + /** + * Put a value in the JSONArray, where the value will be a JSONArray which + * is produced from a Collection. + * + * @param value + * A Collection value. + * @return this. + */ + public JSONArray put(Collection value) { + this.put(new JSONArray(value)); + return this; + } + + /** + * Append a double value. This increases the array's length by one. + * + * @param value + * A double value. + * @throws JSONException + * if the value is not finite. + * @return this. + */ + public JSONArray put(double value) throws JSONException { + Double d = new Double(value); + JSONObject.testValidity(d); + this.put(d); + return this; + } + + /** + * Append an int value. This increases the array's length by one. + * + * @param value + * An int value. + * @return this. + */ + public JSONArray put(int value) { + this.put(new Integer(value)); + return this; + } + + /** + * Append an long value. This increases the array's length by one. + * + * @param value + * A long value. + * @return this. + */ + public JSONArray put(long value) { + this.put(new Long(value)); + return this; + } + + /** + * Put a value in the JSONArray, where the value will be a JSONObject which + * is produced from a Map. + * + * @param value + * A Map value. + * @return this. + */ + public JSONArray put(Map value) { + this.put(new JSONObject(value)); + return this; + } + + /** + * Append an object value. This increases the array's length by one. + * + * @param value + * An object value. The value should be a Boolean, Double, + * Integer, JSONArray, JSONObject, Long, or String, or the + * JSONObject.NULL object. + * @return this. + */ + public JSONArray put(Object value) { + this.myArrayList.add(value); + return this; + } + + /** + * Put or replace a boolean value in the JSONArray. If the index is greater + * than the length of the JSONArray, then null elements will be added as + * necessary to pad it out. + * + * @param index + * The subscript. + * @param value + * A boolean value. + * @return this. + * @throws JSONException + * If the index is negative. + */ + public JSONArray put(int index, boolean value) throws JSONException { + this.put(index, value ? Boolean.TRUE : Boolean.FALSE); + return this; + } + + /** + * Put a value in the JSONArray, where the value will be a JSONArray which + * is produced from a Collection. + * + * @param index + * The subscript. + * @param value + * A Collection value. + * @return this. + * @throws JSONException + * If the index is negative or if the value is not finite. + */ + public JSONArray put(int index, Collection value) throws JSONException { + this.put(index, new JSONArray(value)); + return this; + } + + /** + * Put or replace a double value. If the index is greater than the length of + * the JSONArray, then null elements will be added as necessary to pad it + * out. + * + * @param index + * The subscript. + * @param value + * A double value. + * @return this. + * @throws JSONException + * If the index is negative or if the value is not finite. + */ + public JSONArray put(int index, double value) throws JSONException { + this.put(index, new Double(value)); + return this; + } + + /** + * Put or replace an int value. If the index is greater than the length of + * the JSONArray, then null elements will be added as necessary to pad it + * out. + * + * @param index + * The subscript. + * @param value + * An int value. + * @return this. + * @throws JSONException + * If the index is negative. + */ + public JSONArray put(int index, int value) throws JSONException { + this.put(index, new Integer(value)); + return this; + } + + /** + * Put or replace a long value. If the index is greater than the length of + * the JSONArray, then null elements will be added as necessary to pad it + * out. + * + * @param index + * The subscript. + * @param value + * A long value. + * @return this. + * @throws JSONException + * If the index is negative. + */ + public JSONArray put(int index, long value) throws JSONException { + this.put(index, new Long(value)); + return this; + } + + /** + * Put a value in the JSONArray, where the value will be a JSONObject that + * is produced from a Map. + * + * @param index + * The subscript. + * @param value + * The Map value. + * @return this. + * @throws JSONException + * If the index is negative or if the the value is an invalid + * number. + */ + public JSONArray put(int index, Map value) throws JSONException { + this.put(index, new JSONObject(value)); + return this; + } + + /** + * Put or replace an object value in the JSONArray. If the index is greater + * than the length of the JSONArray, then null elements will be added as + * necessary to pad it out. + * + * @param index + * The subscript. + * @param value + * The value to put into the array. The value should be a + * Boolean, Double, Integer, JSONArray, JSONObject, Long, or + * String, or the JSONObject.NULL object. + * @return this. + * @throws JSONException + * If the index is negative or if the the value is an invalid + * number. + */ + public JSONArray put(int index, Object value) throws JSONException { + JSONObject.testValidity(value); + if (index < 0) { + throw new JSONException("JSONArray[" + index + "] not found."); + } + if (index < this.length()) { + this.myArrayList.set(index, value); + } else { + while (index != this.length()) { + this.put(JSONObject.NULL); + } + this.put(value); + } + return this; + } + + /** + * Remove an index and close the hole. + * + * @param index + * The index of the element to be removed. + * @return The value that was associated with the index, or null if there + * was no value. + */ + public Object remove(int index) { + return index >= 0 && index < this.length() + ? this.myArrayList.remove(index) + : null; + } + + /** + * Determine if two JSONArrays are similar. + * They must contain similar sequences. + * + * @param other The other JSONArray + * @return true if they are equal + */ + public boolean similar(Object other) { + if (!(other instanceof JSONArray)) { + return false; + } + int len = this.length(); + if (len != ((JSONArray)other).length()) { + return false; + } + for (int i = 0; i < len; i += 1) { + Object valueThis = this.get(i); + Object valueOther = ((JSONArray)other).get(i); + if (valueThis instanceof JSONObject) { + if (!((JSONObject)valueThis).similar(valueOther)) { + return false; + } + } else if (valueThis instanceof JSONArray) { + if (!((JSONArray)valueThis).similar(valueOther)) { + return false; + } + } else if (!valueThis.equals(valueOther)) { + return false; + } + } + return true; + } + + /** + * Produce a JSONObject by combining a JSONArray of names with the values of + * this JSONArray. + * + * @param names + * A JSONArray containing a list of key strings. These will be + * paired with the values. + * @return A JSONObject, or null if there are no names or if this JSONArray + * has no values. + * @throws JSONException + * If any of the names are null. + */ + public JSONObject toJSONObject(JSONArray names) throws JSONException { + if (names == null || names.length() == 0 || this.length() == 0) { + return null; + } + JSONObject jo = new JSONObject(); + for (int i = 0; i < names.length(); i += 1) { + jo.put(names.getString(i), this.opt(i)); + } + return jo; + } + + /** + * Make a JSON text of this JSONArray. For compactness, no unnecessary + * whitespace is added. If it is not possible to produce a syntactically + * correct JSON text then null will be returned instead. This could occur if + * the array contains an invalid number. + *

+ * Warning: This method assumes that the data structure is acyclical. + * + * @return a printable, displayable, transmittable representation of the + * array. + */ + public String toString() { + try { + return this.toString(0); + } catch (Exception e) { + return null; + } + } + + /** + * Make a prettyprinted JSON text of this JSONArray. Warning: This method + * assumes that the data structure is acyclical. + * + * @param indentFactor + * The number of spaces to add to each level of indentation. + * @return a printable, displayable, transmittable representation of the + * object, beginning with [ (left + * bracket) and ending with ] + *  (right bracket). + * @throws JSONException + */ + public String toString(int indentFactor) throws JSONException { + StringWriter sw = new StringWriter(); + synchronized (sw.getBuffer()) { + return this.write(sw, indentFactor, 0).toString(); + } + } + + /** + * Write the contents of the JSONArray as JSON text to a writer. For + * compactness, no whitespace is added. + *

+ * Warning: This method assumes that the data structure is acyclical. + * + * @return The writer. + * @throws JSONException + */ + public Writer write(Writer writer) throws JSONException { + return this.write(writer, 0, 0); + } + + /** + * Write the contents of the JSONArray as JSON text to a writer. For + * compactness, no whitespace is added. + *

+ * Warning: This method assumes that the data structure is acyclical. + * + * @param indentFactor + * The number of spaces to add to each level of indentation. + * @param indent + * The indention of the top level. + * @return The writer. + * @throws JSONException + */ + Writer write(Writer writer, int indentFactor, int indent) + throws JSONException { + try { + boolean commanate = false; + int length = this.length(); + writer.write('['); + + if (length == 1) { + JSONObject.writeValue(writer, this.myArrayList.get(0), + indentFactor, indent); + } else if (length != 0) { + final int newindent = indent + indentFactor; + + for (int i = 0; i < length; i += 1) { + if (commanate) { + writer.write(','); + } + if (indentFactor > 0) { + writer.write('\n'); + } + JSONObject.indent(writer, newindent); + JSONObject.writeValue(writer, this.myArrayList.get(i), + indentFactor, newindent); + commanate = true; + } + if (indentFactor > 0) { + writer.write('\n'); + } + JSONObject.indent(writer, indent); + } + writer.write(']'); + return writer; + } catch (IOException e) { + throw new JSONException(e); + } + } +} diff --git a/JSONException.java b/JSONException.java new file mode 100644 index 0000000..77541f4 --- /dev/null +++ b/JSONException.java @@ -0,0 +1,44 @@ +package jsonnoexception; + + +/** + * The JSONException is thrown by the JSON.org classes when things are amiss. + * + * @author JSON.org + * @version 2014-05-03 + */ +public class JSONException extends RuntimeException { + private static final long serialVersionUID = 0; + private Throwable cause; + + /** + * Constructs a JSONException with an explanatory message. + * + * @param message + * Detail about the reason for the exception. + */ + public JSONException(String message) { + super(message); + } + + /** + * Constructs a new JSONException with the specified cause. + * @param cause The cause. + */ + public JSONException(Throwable cause) { + super(cause.getMessage()); + this.cause = cause; + } + + /** + * Returns the cause of this exception or null if the cause is nonexistent + * or unknown. + * + * @return the cause of this exception or null if the cause is nonexistent + * or unknown. + */ + @Override + public Throwable getCause() { + return this.cause; + } +} diff --git a/JSONML.java b/JSONML.java new file mode 100644 index 0000000..32cea8d --- /dev/null +++ b/JSONML.java @@ -0,0 +1,470 @@ +package jsonnoexception; + + +/* +Copyright (c) 2008 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +import java.util.Iterator; + + +/** + * This provides static methods to convert an XML text into a JSONArray or + * JSONObject, and to covert a JSONArray or JSONObject into an XML text using + * the JsonML transform. + * + * @author JSON.org + * @version 2014-05-03 + */ +public class JSONML { + + /** + * Parse XML values and store them in a JSONArray. + * @param x The XMLTokener containing the source string. + * @param arrayForm true if array form, false if object form. + * @param ja The JSONArray that is containing the current tag or null + * if we are at the outermost level. + * @return A JSONArray if the value is the outermost tag, otherwise null. + * @throws JSONException + */ + private static Object parse( + XMLTokener x, + boolean arrayForm, + JSONArray ja + ) throws JSONException { + String attribute; + char c; + String closeTag = null; + int i; + JSONArray newja = null; + JSONObject newjo = null; + Object token; + String tagName = null; + +// Test for and skip past these forms: +// +// +// +// + + while (true) { + if (!x.more()) { + throw x.syntaxError("Bad XML"); + } + token = x.nextContent(); + if (token == XML.LT) { + token = x.nextToken(); + if (token instanceof Character) { + if (token == XML.SLASH) { + +// Close tag "); + } else { + x.back(); + } + } else if (c == '[') { + token = x.nextToken(); + if (token.equals("CDATA") && x.next() == '[') { + if (ja != null) { + ja.put(x.nextCDATA()); + } + } else { + throw x.syntaxError("Expected 'CDATA['"); + } + } else { + i = 1; + do { + token = x.nextMeta(); + if (token == null) { + throw x.syntaxError("Missing '>' after ' 0); + } + } else if (token == XML.QUEST) { + +// "); + } else { + throw x.syntaxError("Misshaped tag"); + } + +// Open tag < + + } else { + if (!(token instanceof String)) { + throw x.syntaxError("Bad tagName '" + token + "'."); + } + tagName = (String)token; + newja = new JSONArray(); + newjo = new JSONObject(); + if (arrayForm) { + newja.put(tagName); + if (ja != null) { + ja.put(newja); + } + } else { + newjo.put("tagName", tagName); + if (ja != null) { + ja.put(newjo); + } + } + token = null; + for (;;) { + if (token == null) { + token = x.nextToken(); + } + if (token == null) { + throw x.syntaxError("Misshaped tag"); + } + if (!(token instanceof String)) { + break; + } + +// attribute = value + + attribute = (String)token; + if (!arrayForm && ("tagName".equals(attribute) || "childNode".equals(attribute))) { + throw x.syntaxError("Reserved attribute."); + } + token = x.nextToken(); + if (token == XML.EQ) { + token = x.nextToken(); + if (!(token instanceof String)) { + throw x.syntaxError("Missing value"); + } + newjo.accumulate(attribute, XML.stringToValue((String)token)); + token = null; + } else { + newjo.accumulate(attribute, ""); + } + } + if (arrayForm && newjo.length() > 0) { + newja.put(newjo); + } + +// Empty tag <.../> + + if (token == XML.SLASH) { + if (x.nextToken() != XML.GT) { + throw x.syntaxError("Misshaped tag"); + } + if (ja == null) { + if (arrayForm) { + return newja; + } else { + return newjo; + } + } + +// Content, between <...> and + + } else { + if (token != XML.GT) { + throw x.syntaxError("Misshaped tag"); + } + closeTag = (String)parse(x, arrayForm, newja); + if (closeTag != null) { + if (!closeTag.equals(tagName)) { + throw x.syntaxError("Mismatched '" + tagName + + "' and '" + closeTag + "'"); + } + tagName = null; + if (!arrayForm && newja.length() > 0) { + newjo.put("childNodes", newja); + } + if (ja == null) { + if (arrayForm) { + return newja; + } else { + return newjo; + } + } + } + } + } + } else { + if (ja != null) { + ja.put(token instanceof String + ? XML.stringToValue((String)token) + : token); + } + } + } + } + + + /** + * Convert a well-formed (but not necessarily valid) XML string into a + * JSONArray using the JsonML transform. Each XML tag is represented as + * a JSONArray in which the first element is the tag name. If the tag has + * attributes, then the second element will be JSONObject containing the + * name/value pairs. If the tag contains children, then strings and + * JSONArrays will represent the child tags. + * Comments, prologs, DTDs, and <[ [ ]]> are ignored. + * @param string The source string. + * @return A JSONArray containing the structured data from the XML string. + * @throws JSONException + */ + public static JSONArray toJSONArray(String string) throws JSONException { + return toJSONArray(new XMLTokener(string)); + } + + + /** + * Convert a well-formed (but not necessarily valid) XML string into a + * JSONArray using the JsonML transform. Each XML tag is represented as + * a JSONArray in which the first element is the tag name. If the tag has + * attributes, then the second element will be JSONObject containing the + * name/value pairs. If the tag contains children, then strings and + * JSONArrays will represent the child content and tags. + * Comments, prologs, DTDs, and <[ [ ]]> are ignored. + * @param x An XMLTokener. + * @return A JSONArray containing the structured data from the XML string. + * @throws JSONException + */ + public static JSONArray toJSONArray(XMLTokener x) throws JSONException { + return (JSONArray)parse(x, true, null); + } + + + /** + * Convert a well-formed (but not necessarily valid) XML string into a + * JSONObject using the JsonML transform. Each XML tag is represented as + * a JSONObject with a "tagName" property. If the tag has attributes, then + * the attributes will be in the JSONObject as properties. If the tag + * contains children, the object will have a "childNodes" property which + * will be an array of strings and JsonML JSONObjects. + + * Comments, prologs, DTDs, and <[ [ ]]> are ignored. + * @param x An XMLTokener of the XML source text. + * @return A JSONObject containing the structured data from the XML string. + * @throws JSONException + */ + public static JSONObject toJSONObject(XMLTokener x) throws JSONException { + return (JSONObject)parse(x, false, null); + } + + + /** + * Convert a well-formed (but not necessarily valid) XML string into a + * JSONObject using the JsonML transform. Each XML tag is represented as + * a JSONObject with a "tagName" property. If the tag has attributes, then + * the attributes will be in the JSONObject as properties. If the tag + * contains children, the object will have a "childNodes" property which + * will be an array of strings and JsonML JSONObjects. + + * Comments, prologs, DTDs, and <[ [ ]]> are ignored. + * @param string The XML source text. + * @return A JSONObject containing the structured data from the XML string. + * @throws JSONException + */ + public static JSONObject toJSONObject(String string) throws JSONException { + return toJSONObject(new XMLTokener(string)); + } + + + /** + * Reverse the JSONML transformation, making an XML text from a JSONArray. + * @param ja A JSONArray. + * @return An XML string. + * @throws JSONException + */ + public static String toString(JSONArray ja) throws JSONException { + int i; + JSONObject jo; + String key; + Iterator keys; + int length; + Object object; + StringBuilder sb = new StringBuilder(); + String tagName; + String value; + +// Emit = length) { + sb.append('/'); + sb.append('>'); + } else { + sb.append('>'); + do { + object = ja.get(i); + i += 1; + if (object != null) { + if (object instanceof String) { + sb.append(XML.escape(object.toString())); + } else if (object instanceof JSONObject) { + sb.append(toString((JSONObject)object)); + } else if (object instanceof JSONArray) { + sb.append(toString((JSONArray)object)); + } else { + sb.append(object.toString()); + } + } + } while (i < length); + sb.append('<'); + sb.append('/'); + sb.append(tagName); + sb.append('>'); + } + return sb.toString(); + } + + /** + * Reverse the JSONML transformation, making an XML text from a JSONObject. + * The JSONObject must contain a "tagName" property. If it has children, + * then it must have a "childNodes" property containing an array of objects. + * The other properties are attributes with string values. + * @param jo A JSONObject. + * @return An XML string. + * @throws JSONException + */ + public static String toString(JSONObject jo) throws JSONException { + StringBuilder sb = new StringBuilder(); + int i; + JSONArray ja; + String key; + Iterator keys; + int length; + Object object; + String tagName; + String value; + +//Emit '); + } else { + sb.append('>'); + length = ja.length(); + for (i = 0; i < length; i += 1) { + object = ja.get(i); + if (object != null) { + if (object instanceof String) { + sb.append(XML.escape(object.toString())); + } else if (object instanceof JSONObject) { + sb.append(toString((JSONObject)object)); + } else if (object instanceof JSONArray) { + sb.append(toString((JSONArray)object)); + } else { + sb.append(object.toString()); + } + } + } + sb.append('<'); + sb.append('/'); + sb.append(tagName); + sb.append('>'); + } + return sb.toString(); + } +} diff --git a/JSONObject.java b/JSONObject.java new file mode 100644 index 0000000..75a3f70 --- /dev/null +++ b/JSONObject.java @@ -0,0 +1,1807 @@ +package jsonnoexception; + + +/* + Copyright (c) 2002 JSON.org + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all + copies or substantial portions of the Software. + + The Software shall be used for Good, not Evil. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. + */ + +import java.io.IOException; +import java.io.StringWriter; +import java.io.Writer; +import java.lang.reflect.Field; +import java.lang.reflect.Method; +import java.lang.reflect.Modifier; +import java.util.Collection; +import java.util.Comparator; +import java.util.Enumeration; +import java.util.HashMap; +import java.util.Iterator; +import java.util.LinkedHashMap; +import java.util.Locale; +import java.util.Map; +import java.util.Map.Entry; +import java.util.ResourceBundle; +import java.util.Set; + +/** + * A JSONObject is an unordered collection of name/value pairs. Its external + * form is a string wrapped in curly braces with colons between the names and + * values, and commas between the values and names. The internal form is an + * object having get and opt methods for accessing + * the values by name, and put methods for adding or replacing + * values by name. The values can be any of these types: Boolean, + * JSONArray, JSONObject, Number, + * String, or the JSONObject.NULL object. A + * JSONObject constructor can be used to convert an external form JSON text + * into an internal form whose values can be retrieved with the + * get and opt methods, or to convert values into a + * JSON text using the put and toString methods. A + * get method returns a value if one can be found, and throws an + * exception if one cannot be found. An opt method returns a + * default value instead of throwing an exception, and so is useful for + * obtaining optional values. + *

+ * The generic get() and opt() methods return an + * object, which you can cast or query for type. There are also typed + * get and opt methods that do type checking and type + * coercion for you. The opt methods differ from the get methods in that they + * do not throw. Instead, they return a specified value, such as null. + *

+ * The put methods add or replace values in an object. For + * example, + * + * 

+ * myString = new JSONObject()
+ *         .put("JSON", "Hello, World!").toString();
+ *
+ * + * produces the string {"JSON": "Hello, World"}. + *

+ * The texts produced by the toString methods strictly conform to + * the JSON syntax rules. The constructors are more forgiving in the texts they + * will accept: + *

    + *
  • An extra , (comma) may appear just + * before the closing brace.
    • + *
  • Strings may be quoted with ' (single + * quote).
    • + *
  • Strings do not need to be quoted at all if they do not begin with a + * quote or single quote, and if they do not contain leading or trailing + * spaces, and if they do not contain any of these characters: + * { } [ ] / \ : , # and if they do not look like numbers and + * if they are not the reserved words true, false, + * or null.
    • + *
+ * + * @author JSON.org + * @version 2015-05-05 + */ +public class JSONObject { + /** + * JSONObject.NULL is equivalent to the value that JavaScript calls null, + * whilst Java's null is equivalent to the value that JavaScript calls + * undefined. + */ + private static final class Null { + + /** + * There is only intended to be a single instance of the NULL object, + * so the clone method returns itself. + * + * @return NULL. + */ + @Override + protected final Object clone() { + return this; + } + + /** + * A Null object is equal to the null value and to itself. + * + * @param object + * An object to test for nullness. + * @return true if the object parameter is the JSONObject.NULL object or + * null. + */ + @Override + public boolean equals(Object object) { + return object == null || object == this; + } + + /** + * Get the "null" string value. + * + * @return The string "null". + */ + public String toString() { + return "null"; + } + } + + //replace an KEY + public void replaceKey(String oldkey,String newKey) + { + map.put( newKey, map.remove( oldkey) ); + } + + public int compare(JSONObject a, String key) + { + JSONComparator compare = new JSONComparator(key); + return compare.compare(this, a); + } + + class JSONComparator implements Comparator + { + private String key; + public JSONComparator(String key) + { + this.key = key; + } + public int compare(JSONObject a, JSONObject b) + { + //valA and valB could be any simple type, such as number, string, whatever + double valA = a.getDouble(key); + double valB = b.getDouble(key); + if(valA > valB) + return 1; + if(valA < valB) + return -1; + return 0; + } + } + + /** + * The map where the JSONObject's properties are kept. + */ + private final Map map; + + /** + * It is sometimes more convenient and less ambiguous to have a + * NULL object than to use Java's null value. + * JSONObject.NULL.equals(null) returns true. + * JSONObject.NULL.toString() returns "null". + */ + public static final Object NULL = new Null(); + + //@refractor + /** + * Construct an empty JSONObject. + */ + public JSONObject() { + this.map = new HashMap(); + } + + public JSONObject(boolean retainKeyOrder) + { + if ( retainKeyOrder) + this.map = new LinkedHashMap (); //used to retain key order instead + else + this.map = new HashMap(); + } + + /** + * Construct a JSONObject from a subset of another JSONObject. An array of + * strings is used to identify the keys that should be copied. Missing keys + * are ignored. + * + * @param jo + * A JSONObject. + * @param names + * An array of strings. + * @exception JSONException + * If a value is a non-finite number or if a name is + * duplicated. + */ + public JSONObject(JSONObject jo, String[] names) { + this(); + for (int i = 0; i < names.length; i += 1) { + try { + this.putOnce(names[i], jo.opt(names[i])); + } catch (Exception ignore) { + } + } + } + + /** + * Construct a JSONObject from a JSONTokener. + * + * @param x + * A JSONTokener object containing the source string. + * @throws JSONException + * If there is a syntax error in the source string or a + * duplicated key. + */ + public JSONObject(JSONTokener x) throws JSONException { + this(); + char c; + String key; + + if (x.nextClean() != '{') { + throw x.syntaxError("A JSONObject text must begin with '{'"); + } + for (;;) { + c = x.nextClean(); + switch (c) { + case 0: + throw x.syntaxError("A JSONObject text must end with '}'"); + case '}': + return; + default: + x.back(); + key = x.nextValue().toString(); + } + +// The key is followed by ':'. + + c = x.nextClean(); + if (c != ':') { + throw x.syntaxError("Expected a ':' after a key"); + } + this.putOnce(key, x.nextValue()); + +// Pairs are separated by ','. + + switch (x.nextClean()) { + case ';': + case ',': + if (x.nextClean() == '}') { + return; + } + x.back(); + break; + case '}': + return; + default: + throw x.syntaxError("Expected a ',' or '}'"); + } + } + } + + /** + * Construct a JSONObject from a Map. + * + * @param map + * A map object that can be used to initialize the contents of + * the JSONObject. + */ + public JSONObject(Map map) { + this.map = new HashMap(); + if (map != null) { + Iterator> i = map.entrySet().iterator(); + while (i.hasNext()) { + Entry entry = i.next(); + Object value = entry.getValue(); + if (value != null) { + this.map.put(entry.getKey(), wrap(value)); + } + } + } + } + + /** + * Construct a JSONObject from an Object using bean getters. It reflects on + * all of the public methods of the object. For each of the methods with no + * parameters and a name starting with "get" or + * "is" followed by an uppercase letter, the method is invoked, + * and a key and the value returned from the getter method are put into the + * new JSONObject. + * + * The key is formed by removing the "get" or "is" + * prefix. If the second remaining character is not upper case, then the + * first character is converted to lower case. + * + * For example, if an object has a method named "getName", and + * if the result of calling object.getName() is + * "Larry Fine", then the JSONObject will contain + * "name": "Larry Fine". + * + * @param bean + * An object that has getter methods that should be used to make + * a JSONObject. + */ + public JSONObject(Object bean) { + this(); + this.populateMap(bean); + } + + /** + * Construct a JSONObject from an Object, using reflection to find the + * public members. The resulting JSONObject's keys will be the strings from + * the names array, and the values will be the field values associated with + * those keys in the object. If a key is not found or not visible, then it + * will not be copied into the new JSONObject. + * + * @param object + * An object that has fields that should be used to make a + * JSONObject. + * @param names + * An array of strings, the names of the fields to be obtained + * from the object. + */ + public JSONObject(Object object, String names[]) { + this(); + Class c = object.getClass(); + for (int i = 0; i < names.length; i += 1) { + String name = names[i]; + try { + this.putOpt(name, c.getField(name).get(object)); + } catch (Exception ignore) { + } + } + } + + /** + * Construct a JSONObject from a source JSON text string. This is the most + * commonly used JSONObject constructor. + * + * @param source + * A string beginning with { (left + * brace) and ending with } + *  (right brace). + * @exception JSONException + * If there is a syntax error in the source string or a + * duplicated key. + */ + public JSONObject(String source) throws JSONException { + this(new JSONTokener(source)); + } + + /** + * Construct a JSONObject from a ResourceBundle. + * + * @param baseName + * The ResourceBundle base name. + * @param locale + * The Locale to load the ResourceBundle for. + * @throws JSONException + * If any JSONExceptions are detected. + */ + public JSONObject(String baseName, Locale locale) throws JSONException { + this(); + ResourceBundle bundle = ResourceBundle.getBundle(baseName, locale, + Thread.currentThread().getContextClassLoader()); + +// Iterate through the keys in the bundle. + + Enumeration keys = bundle.getKeys(); + while (keys.hasMoreElements()) { + Object key = keys.nextElement(); + if (key != null) { + +// Go through the path, ensuring that there is a nested JSONObject for each +// segment except the last. Add the value using the last segment's name into +// the deepest nested JSONObject. + + String[] path = ((String) key).split("\\."); + int last = path.length - 1; + JSONObject target = this; + for (int i = 0; i < last; i += 1) { + String segment = path[i]; + JSONObject nextTarget = target.optJSONObject(segment); + if (nextTarget == null) { + nextTarget = new JSONObject(); + target.put(segment, nextTarget); + } + target = nextTarget; + } + target.put(path[last], bundle.getString((String) key)); + } + } + } + + /** + * Accumulate values under a key. It is similar to the put method except + * that if there is already an object stored under the key then a JSONArray + * is stored under the key to hold all of the accumulated values. If there + * is already a JSONArray, then the new value is appended to it. In + * contrast, the put method replaces the previous value. + * + * If only one value is accumulated that is not a JSONArray, then the result + * will be the same as using put. But if multiple values are accumulated, + * then the result will be like append. + * + * @param key + * A key string. + * @param value + * An object to be accumulated under the key. + * @return this. + * @throws JSONException + * If the value is an invalid number or if the key is null. + */ + public JSONObject accumulate(String key, Object value) throws JSONException { + testValidity(value); + Object object = this.opt(key); + if (object == null) { + this.put(key, + value instanceof JSONArray ? new JSONArray().put(value) + : value); + } else if (object instanceof JSONArray) { + ((JSONArray) object).put(value); + } else { + this.put(key, new JSONArray().put(object).put(value)); + } + return this; + } + + /** + * Append values to the array under a key. If the key does not exist in the + * JSONObject, then the key is put in the JSONObject with its value being a + * JSONArray containing the value parameter. If the key was already + * associated with a JSONArray, then the value parameter is appended to it. + * + * @param key + * A key string. + * @param value + * An object to be accumulated under the key. + * @return this. + */ + public JSONObject append(String key, Object value) + { + testValidity(value); + Object object = this.opt(key); + if (object == null) { + this.put(key, new JSONArray().put(value)); + } else if (object instanceof JSONArray) { + this.put(key, ((JSONArray) object).put(value)); + } + else + { + //throw new JSONException("JSONObject[" + key + "] is not a JSONArray."); + return null; + } + return this; + } + + /** + * Produce a string from a double. The string "null" will be returned if the + * number is not finite. + * + * @param d + * A double. + * @return A String. + */ + public static String doubleToString(double d) { + if (Double.isInfinite(d) || Double.isNaN(d)) { + return "null"; + } + +// Shave off trailing zeros and decimal point, if possible. + + String string = Double.toString(d); + if (string.indexOf('.') > 0 && string.indexOf('e') < 0 + && string.indexOf('E') < 0) { + while (string.endsWith("0")) { + string = string.substring(0, string.length() - 1); + } + if (string.endsWith(".")) { + string = string.substring(0, string.length() - 1); + } + } + return string; + } + + /** + * Get the value object associated with a key. + * + * @param key + * A key string. + * @return The object associated with the key. + */ + public Object get(String key) { + if (key == null) { + return null; + } + Object object = this.opt(key); + if (object == null) { + return null; + } + return object; + } + + /** + * Get the boolean value associated with a key. + * + * @param key + * A key string. + * @return The truth. + */ + public boolean getBoolean(String key) + { + Object object = this.get(key); + if (object.equals(Boolean.FALSE) + || (object instanceof String && ((String) object) + .equalsIgnoreCase("false"))) { + return false; + } else if (object.equals(Boolean.TRUE) + || (object instanceof String && ((String) object) + .equalsIgnoreCase("true"))) { + return true; + } + return false; + } + + /** + * Get the double value associated with a key. + * + * @param key + * A key string. + * @return The numeric value. + * @throws JSONException + * if the key is not found or if the value is not a Number + * object and cannot be converted to a number. + */ + public double getDouble(String key) + { + Object object = this.get(key); + return object instanceof Number ? ((Number) object).doubleValue(): Double.parseDouble((String) object); + } + + /** + * Get the int value associated with a key. + * + * @param key + * A key string. + * @return The integer value. + * @throws JSONException + * if the key is not found or if the value cannot be converted + * to an integer. + */ + public int getInt(String key) + { + Object object = this.get(key); + return object instanceof Number ? ((Number) object).intValue() : Integer.parseInt((String) object); + } + + /** + * Get the JSONArray value associated with a key. + * + * @param key + * A key string. + * @return A JSONArray which is the value. + */ + public JSONArray getJSONArray(String key) + { + Object object = this.get(key); + if (object instanceof JSONArray) + { + return (JSONArray) object; + } + return null; + } + + /** + * Get the JSONObject value associated with a key. + * + * @param key + * A key string. + * @return A JSONObject which is the value. + */ + public JSONObject getJSONObject(String key) + { + Object object = this.get(key); + if (object instanceof JSONObject) + { + return (JSONObject) object; + } + return null; + } + + //Description: this will search the entire object recursively and return the first instance of the object named name + // returns null if no object was found + public Object getJSONObjectRecursive(String name) + { + Iterator keyIterator = this.keys(); + while ( keyIterator.hasNext() ) + { + String key = keyIterator.next(); + if ( key.equals(name)) + return this.get(key); + else + { + Object innerInnerObject = this.get(key); + if (innerInnerObject instanceof JSONArray) + { + JSONArray innerInnerInnerObject = (JSONArray) innerInnerObject; + Object result = innerInnerInnerObject.getJSONObjectRecursive(name); + if ( result != null ) + return result; + } + else if (innerInnerObject instanceof JSONObject) + { + JSONObject innerInnerInnerObject = (JSONObject) innerInnerObject; + Object result = innerInnerInnerObject.getJSONObjectRecursive(name); + if ( result != null ) + return result; + } + } + } + return null; + } + + + /** + * Get the long value associated with a key. + * + * @param key + * A key string. + * @return The long value. + * @throws JSONException + * if the key is not found or if the value cannot be converted + * to a long. + */ + public long getLong(String key) + { + Object object = this.get(key); + return object instanceof Number ? ((Number) object).longValue() : Long.parseLong((String) object); + } + + /** + * Get an array of field names from a JSONObject. + * + * @return An array of field names, or null if there are no names. + */ + public static String[] getNames(JSONObject jo) { + int length = jo.length(); + if (length == 0) { + return null; + } + Iterator iterator = jo.keys(); + String[] names = new String[length]; + int i = 0; + while (iterator.hasNext()) { + names[i] = iterator.next(); + i += 1; + } + return names; + } + + /** + * Get an array of field names from an Object. + * + * @return An array of field names, or null if there are no names. + */ + public static String[] getNames(Object object) { + if (object == null) { + return null; + } + Class klass = object.getClass(); + Field[] fields = klass.getFields(); + int length = fields.length; + if (length == 0) { + return null; + } + String[] names = new String[length]; + for (int i = 0; i < length; i += 1) { + names[i] = fields[i].getName(); + } + return names; + } + + /** + * Get the string associated with a key. + * + * @param key + * A key string. + * @return A string which is the value. + */ + public String getString(String key) + { + Object object = this.get(key); + if (object instanceof String) { + return (String) object; + } + return null; + } + + /** + * Determine if the JSONObject contains a specific key. + * + * @param key + * A key string. + * @return true if the key exists in the JSONObject. + */ + public boolean has(String key) { + return this.map.containsKey(key); + } + + + public JSONObject increment(String key,int incValue) { + Object value = this.opt(key); + if (value == null) { + this.put(key, incValue); + } else if (value instanceof Integer) { + this.put(key, (Integer) value + incValue); + } else if (value instanceof Long) { + this.put(key, (Long) value + incValue); + } else if (value instanceof Double) { + this.put(key, (Double) value + incValue); + } else if (value instanceof Float) { + this.put(key, (Float) value + incValue); + } else { + return null; + } + return this; + } + + + /** + * Increment a property of a JSONObject. If there is no such property, + * create one with a value of 1. If there is such a property, and if it is + * an Integer, Long, Double, or Float, then add one to it. + * + * @param key + * A key string. + * @return this + */ + public JSONObject increment(String key) { + Object value = this.opt(key); + if (value == null) { + this.put(key, 1); + } else if (value instanceof Integer) { + this.put(key, (Integer) value + 1); + } else if (value instanceof Long) { + this.put(key, (Long) value + 1); + } else if (value instanceof Double) { + this.put(key, (Double) value + 1); + } else if (value instanceof Float) { + this.put(key, (Float) value + 1); + } else { + return null; + } + return this; + } + + /** + * Determine if the value associated with the key is null or if there is no + * value. + * + * @param key + * A key string. + * @return true if there is no value associated with the key or if the value + * is the JSONObject.NULL object. + */ + public boolean isNull(String key) { + return JSONObject.NULL.equals(this.opt(key)); + } + + /** + * Get an enumeration of the keys of the JSONObject. + * + * @return An iterator of the keys. + */ + public Iterator keys() { + return this.keySet().iterator(); + } + + /** + * Get a set of keys of the JSONObject. + * + * @return A keySet. + */ + public Set keySet() { + return this.map.keySet(); + } + + /** + * Get the number of keys stored in the JSONObject. + * + * @return The number of keys in the JSONObject. + */ + public int length() { + return this.map.size(); + } + + /** + * Produce a JSONArray containing the names of the elements of this + * JSONObject. + * + * @return A JSONArray containing the key strings, or null if the JSONObject + * is empty. + */ + public JSONArray names() { + JSONArray ja = new JSONArray(); + Iterator keys = this.keys(); + while (keys.hasNext()) { + ja.put(keys.next()); + } + return ja.length() == 0 ? null : ja; + } + + /** + * Produce a string from a Number. + * + * @param number + * A Number + * @return A String. + * @throws JSONException + * If n is a non-finite number. + */ + public static String numberToString(Number number) throws JSONException { + if (number == null) { + throw new JSONException("Null pointer"); + } + testValidity(number); + +// Shave off trailing zeros and decimal point, if possible. + + String string = number.toString(); + if (string.indexOf('.') > 0 && string.indexOf('e') < 0 + && string.indexOf('E') < 0) { + while (string.endsWith("0")) { + string = string.substring(0, string.length() - 1); + } + if (string.endsWith(".")) { + string = string.substring(0, string.length() - 1); + } + } + return string; + } + + /** + * Get an optional value associated with a key. + * + * @param key + * A key string. + * @return An object which is the value, or null if there is no value. + */ + public Object opt(String key) { + return key == null ? null : this.map.get(key); + } + + /** + * Get an optional boolean associated with a key. It returns false if there + * is no such key, or if the value is not Boolean.TRUE or the String "true". + * + * @param key + * A key string. + * @return The truth. + */ + public boolean optBoolean(String key) { + return this.optBoolean(key, false); + } + + /** + * Get an optional boolean associated with a key. It returns the + * defaultValue if there is no such key, or if it is not a Boolean or the + * String "true" or "false" (case insensitive). + * + * @param key + * A key string. + * @param defaultValue + * The default. + * @return The truth. + */ + public boolean optBoolean(String key, boolean defaultValue) { + try { + return this.getBoolean(key); + } catch (Exception e) { + return defaultValue; + } + } + + /** + * Get an optional double associated with a key, or NaN if there is no such + * key or if its value is not a number. If the value is a string, an attempt + * will be made to evaluate it as a number. + * + * @param key + * A string which is the key. + * @return An object which is the value. + */ + public double optDouble(String key) { + return this.optDouble(key, Double.NaN); + } + + /** + * Get an optional double associated with a key, or the defaultValue if + * there is no such key or if its value is not a number. If the value is a + * string, an attempt will be made to evaluate it as a number. + * + * @param key + * A key string. + * @param defaultValue + * The default. + * @return An object which is the value. + */ + public double optDouble(String key, double defaultValue) { + try { + return this.getDouble(key); + } catch (Exception e) { + return defaultValue; + } + } + + /** + * Get an optional int value associated with a key, or zero if there is no + * such key or if the value is not a number. If the value is a string, an + * attempt will be made to evaluate it as a number. + * + * @param key + * A key string. + * @return An object which is the value. + */ + public int optInt(String key) { + return this.optInt(key, 0); + } + + /** + * Get an optional int value associated with a key, or the default if there + * is no such key or if the value is not a number. If the value is a string, + * an attempt will be made to evaluate it as a number. + * + * @param key + * A key string. + * @param defaultValue + * The default. + * @return An object which is the value. + */ + public int optInt(String key, int defaultValue) { + try { + return this.getInt(key); + } catch (Exception e) { + return defaultValue; + } + } + + /** + * Get an optional JSONArray associated with a key. It returns null if there + * is no such key, or if its value is not a JSONArray. + * + * @param key + * A key string. + * @return A JSONArray which is the value. + */ + public JSONArray optJSONArray(String key) { + Object o = this.opt(key); + return o instanceof JSONArray ? (JSONArray) o : null; + } + + /** + * Get an optional JSONObject associated with a key. It returns null if + * there is no such key, or if its value is not a JSONObject. + * + * @param key + * A key string. + * @return A JSONObject which is the value. + */ + public JSONObject optJSONObject(String key) { + Object object = this.opt(key); + return object instanceof JSONObject ? (JSONObject) object : null; + } + + /** + * Get an optional long value associated with a key, or zero if there is no + * such key or if the value is not a number. If the value is a string, an + * attempt will be made to evaluate it as a number. + * + * @param key + * A key string. + * @return An object which is the value. + */ + public long optLong(String key) { + return this.optLong(key, 0); + } + + /** + * Get an optional long value associated with a key, or the default if there + * is no such key or if the value is not a number. If the value is a string, + * an attempt will be made to evaluate it as a number. + * + * @param key + * A key string. + * @param defaultValue + * The default. + * @return An object which is the value. + */ + public long optLong(String key, long defaultValue) { + try { + return this.getLong(key); + } catch (Exception e) { + return defaultValue; + } + } + + /** + * Get an optional string associated with a key. It returns an empty string + * if there is no such key. If the value is not a string and is not null, + * then it is converted to a string. + * + * @param key + * A key string. + * @return A string which is the value. + */ + public String optString(String key) { + return this.optString(key, ""); + } + + /** + * Get an optional string associated with a key. It returns the defaultValue + * if there is no such key. + * + * @param key + * A key string. + * @param defaultValue + * The default. + * @return A string which is the value. + */ + public String optString(String key, String defaultValue) { + Object object = this.opt(key); + return NULL.equals(object) ? defaultValue : object.toString(); + } + + public JSONObject decrement(String key,int decValue) { + Object value = this.opt(key); + if (value == null) { + this.put(key, -decValue); + } else if (value instanceof Integer) { + this.put(key, (Integer) value + -decValue); + } else if (value instanceof Long) { + this.put(key, (Long) value + -decValue); + } else if (value instanceof Double) { + this.put(key, (Double) value + -decValue); + } else if (value instanceof Float) { + this.put(key, (Float) value + -decValue); + } else { + return null; + } + return this; + } + + public JSONObject decrement(String key) { + Object value = this.opt(key); + if (value == null) { + this.put(key, -1); + } else if (value instanceof Integer) { + this.put(key, (Integer) value + -1); + } else if (value instanceof Long) { + this.put(key, (Long) value + -1); + } else if (value instanceof Double) { + this.put(key, (Double) value + -1); + } else if (value instanceof Float) { + this.put(key, (Float) value + -1); + } else { + return null; + } + return this; + } + + + + private void populateMap(Object bean) { + Class klass = bean.getClass(); + +// If klass is a System class then set includeSuperClass to false. + + boolean includeSuperClass = klass.getClassLoader() != null; + + Method[] methods = includeSuperClass ? klass.getMethods() : klass + .getDeclaredMethods(); + for (int i = 0; i < methods.length; i += 1) { + try { + Method method = methods[i]; + if (Modifier.isPublic(method.getModifiers())) { + String name = method.getName(); + String key = ""; + if (name.startsWith("get")) { + if ("getClass".equals(name) + || "getDeclaringClass".equals(name)) { + key = ""; + } else { + key = name.substring(3); + } + } else if (name.startsWith("is")) { + key = name.substring(2); + } + if (key.length() > 0 + && Character.isUpperCase(key.charAt(0)) + && method.getParameterTypes().length == 0) { + if (key.length() == 1) { + key = key.toLowerCase(); + } else if (!Character.isUpperCase(key.charAt(1))) { + key = key.substring(0, 1).toLowerCase() + + key.substring(1); + } + + Object result = method.invoke(bean, (Object[]) null); + if (result != null) { + this.map.put(key, wrap(result)); + } + } + } + } catch (Exception ignore) { + } + } + } + + /** + * Put a key/boolean pair in the JSONObject. + * + * @param key + * A key string. + * @param value + * A boolean which is the value. + * @return this. + */ + public JSONObject put(String key, boolean value) + { + this.put(key, value ? Boolean.TRUE : Boolean.FALSE); + return this; + } + + /** + * Put a key/value pair in the JSONObject, where the value will be a + * JSONArray which is produced from a Collection. + * + * @param key + * A key string. + * @param value + * A Collection value. + * @return this. + */ + public JSONObject put(String key, Collection value) + { + this.put(key, new JSONArray(value)); + return this; + } + + /** + * Put a key/double pair in the JSONObject. + * + * @param key + * A key string. + * @param value + * A double which is the value. + * @return this. + */ + public JSONObject put(String key, double value) + { + this.put(key, new Double(value)); + return this; + } + + public JSONObject put(String key, float value) + { + this.put(key, new Float(value)); + return this; + } + + /** + * Put a key/int pair in the JSONObject. + * + * @param key + * A key string. + * @param value + * An int which is the value. + * @return this. + */ + public JSONObject put(String key, int value) + { + this.put(key, new Integer(value)); + return this; + } + + /** + * Put a key/long pair in the JSONObject. + * + * @param key + * A key string. + * @param value + * A long which is the value. + * @return this. + */ + public JSONObject put(String key, long value) + { + this.put(key, new Long(value)); + return this; + } + + /** + * Put a key/value pair in the JSONObject, where the value will be a + * JSONObject which is produced from a Map. + * + * @param key + * A key string. + * @param value + * A Map value. + * @return this. + */ + public JSONObject put(String key, Map value) + { + this.put(key, new JSONObject(value)); + return this; + } + + /** + * Put a key/value pair in the JSONObject. If the value is null, then the + * key will be removed from the JSONObject if it is present. + * + * @param key + * A key string. + * @param value + * An object which is the value. It should be of one of these + * types: Boolean, Double, Integer, JSONArray, JSONObject, Long, + * String, or the JSONObject.NULL object. + * @return this. + */ + public JSONObject put(String key, Object value) + { + if (key == null) { + return null; + } + if (value != null) { + testValidity(value); + this.map.put(key, value); + } else { + this.remove(key); + } + return this; + } + + + + /** + * Put a key/value pair in the JSONObject, but only if the key and the value + * are both non-null, and only if there is not already a member with that + * name. + * + * @param key string + * @param value object + * @return this. + */ + public JSONObject putOnce(String key, Object value) { + if (key != null && value != null) { + if (this.opt(key) != null) + { + return null; + } + this.put(key, value); + } + return this; + } + + /** + * Put a key/value pair in the JSONObject, but only if the key and the value + * are both non-null. + * + * @param key + * A key string. + * @param value + * An object which is the value. It should be of one of these + * types: Boolean, Double, Integer, JSONArray, JSONObject, Long, + * String, or the JSONObject.NULL object. + * @return this. + * If the value is a non-finite number. + */ + public JSONObject putOpt(String key, Object value) throws JSONException { + if (key != null && value != null) { + this.put(key, value); + } + return this; + } + + /** + * Produce a string in double quotes with backslash sequences in all the + * right places. A backslash will be inserted within = '\u0080' && c < '\u00a0') + || (c >= '\u2000' && c < '\u2100')) { + w.write("\\u"); + hhhh = Integer.toHexString(c); + w.write("0000", 0, 4 - hhhh.length()); + w.write(hhhh); + } else { + w.write(c); + } + } + } + w.write('"'); + return w; + } + + /** + * Remove a name and its value, if present. + * + * @param key + * The name to be removed. + * @return The value that was associated with the name, or null if there was + * no value. + */ + public Object remove(String key) { + return this.map.remove(key); + } + + /** + * Determine if two JSONObjects are similar. + * They must contain the same set of names which must be associated with + * similar values. + * + * @param other The other JSONObject + * @return true if they are equal + */ + public boolean similar(Object other) { + try { + if (!(other instanceof JSONObject)) { + return false; + } + Set set = this.keySet(); + if (!set.equals(((JSONObject)other).keySet())) { + return false; + } + Iterator iterator = set.iterator(); + while (iterator.hasNext()) { + String name = iterator.next(); + Object valueThis = this.get(name); + Object valueOther = ((JSONObject)other).get(name); + if (valueThis instanceof JSONObject) { + if (!((JSONObject)valueThis).similar(valueOther)) { + return false; + } + } else if (valueThis instanceof JSONArray) { + if (!((JSONArray)valueThis).similar(valueOther)) { + return false; + } + } else if (!valueThis.equals(valueOther)) { + return false; + } + } + return true; + } catch (Throwable exception) { + return false; + } + } + + /** + * Try to convert a string into a number, boolean, or null. If the string + * can't be converted, return the string. + * + * @param string + * A String. + * @return A simple JSON value. + */ + public static Object stringToValue(String string) { + Double d; + if (string.equals("")) { + return string; + } + if (string.equalsIgnoreCase("true")) { + return Boolean.TRUE; + } + if (string.equalsIgnoreCase("false")) { + return Boolean.FALSE; + } + if (string.equalsIgnoreCase("null")) { + return JSONObject.NULL; + } + + /* + * If it might be a number, try converting it. If a number cannot be + * produced, then the value will just be a string. + */ + + char b = string.charAt(0); + if ((b >= '0' && b <= '9') || b == '-') { + try { + if (string.indexOf('.') > -1 || string.indexOf('e') > -1 + || string.indexOf('E') > -1) { + d = Double.valueOf(string); + if (!d.isInfinite() && !d.isNaN()) { + return d; + } + } else { + Long myLong = new Long(string); + if (string.equals(myLong.toString())) { + if (myLong == myLong.intValue()) { + return myLong.intValue(); + } else { + return myLong; + } + } + } + } catch (Exception ignore) { + } + } + return string; + } + + /** + * Throw an exception if the object is a NaN or infinite number. + * + * @param o + * The object to test. + * @throws JSONException + * If o is a non-finite number. + */ + public static void testValidity(Object o) throws JSONException { + if (o != null) { + if (o instanceof Double) { + if (((Double) o).isInfinite() || ((Double) o).isNaN()) { + throw new JSONException( + "JSON does not allow non-finite numbers."); + } + } else if (o instanceof Float) { + if (((Float) o).isInfinite() || ((Float) o).isNaN()) { + throw new JSONException( + "JSON does not allow non-finite numbers."); + } + } + } + } + + /** + * Produce a JSONArray containing the values of the members of this + * JSONObject. + * + * @param names + * A JSONArray containing a list of key strings. This determines + * the sequence of the values in the result. + * @return A JSONArray of values. + * If any of the values are non-finite numbers. + */ + public JSONArray toJSONArray(JSONArray names) + { + if (names == null || names.length() == 0) { + return null; + } + JSONArray ja = new JSONArray(); + for (int i = 0; i < names.length(); i += 1) { + ja.put(this.opt(names.getString(i))); + } + return ja; + } + + /** + * Make a JSON text of this JSONObject. For compactness, no whitespace is + * added. If this would not result in a syntactically correct JSON text, + * then null will be returned instead. + *

+ * Warning: This method assumes that the data structure is acyclical. + * + * @return a printable, displayable, portable, transmittable representation + * of the object, beginning with { (left + * brace) and ending with } (right + * brace). + */ + public String toString() { + return this.toString(0); + } + + /** + * Make a prettyprinted JSON text of this JSONObject. + *

+ * Warning: This method assumes that the data structure is acyclical. + * + * @param indentFactor + * The number of spaces to add to each level of indentation. + * @return a printable, displayable, portable, transmittable representation + * of the object, beginning with { (left + * brace) and ending with } (right + * brace). + * @throws JSONException + * If the object contains an invalid number. + */ + public String toString(int indentFactor) throws JSONException + { + StringWriter w = new StringWriter(); + synchronized (w.getBuffer()) + { + return this.write(w, indentFactor, 0).toString(); + } + } + + /** + * Make a JSON text of an Object value. If the object has an + * value.toJSONString() method, then that method will be used to produce the + * JSON text. The method is required to produce a strictly conforming text. + * If the object does not contain a toJSONString method (which is the most + * common case), then a text will be produced by other means. If the value + * is an array or Collection, then a JSONArray will be made from it and its + * toJSONString method will be called. If the value is a MAP, then a + * JSONObject will be made from it and its toJSONString method will be + * called. Otherwise, the value's toString method will be called, and the + * result will be quoted. + * + *

+ * Warning: This method assumes that the data structure is acyclical. + * + * @param value + * The value to be serialized. + * @return a printable, displayable, transmittable representation of the + * object, beginning with { (left + * brace) and ending with } (right + * brace). + * @throws JSONException + * If the value is or contains an invalid number. + */ + public static String valueToString(Object value) throws JSONException { + if (value == null || value.equals(null)) { + return "null"; + } + if (value instanceof JSONString) { + Object object; + try { + object = ((JSONString) value).toJSONString(); + } catch (Exception e) { + throw new JSONException(e); + } + if (object instanceof String) { + return (String) object; + } + throw new JSONException("Bad value from toJSONString: " + object); + } + if (value instanceof Number) { + return numberToString((Number) value); + } + if (value instanceof Boolean || value instanceof JSONObject + || value instanceof JSONArray) { + return value.toString(); + } + if (value instanceof Map) { + @SuppressWarnings("unchecked") + Map map = (Map) value; + return new JSONObject(map).toString(); + } + if (value instanceof Collection) { + @SuppressWarnings("unchecked") + Collection coll = (Collection) value; + return new JSONArray(coll).toString(); + } + if (value.getClass().isArray()) { + return new JSONArray(value).toString(); + } + return quote(value.toString()); + } + + /** + * Wrap an object, if necessary. If the object is null, return the NULL + * object. If it is an array or collection, wrap it in a JSONArray. If it is + * a map, wrap it in a JSONObject. If it is a standard property (Double, + * String, et al) then it is already wrapped. Otherwise, if it comes from + * one of the java packages, turn it into a string. And if it doesn't, try + * to wrap it in a JSONObject. If the wrapping fails, then null is returned. + * + * @param object + * The object to wrap + * @return The wrapped value + */ + public static Object wrap(Object object) { + try { + if (object == null) { + return NULL; + } + if (object instanceof JSONObject || object instanceof JSONArray + || NULL.equals(object) || object instanceof JSONString + || object instanceof Byte || object instanceof Character + || object instanceof Short || object instanceof Integer + || object instanceof Long || object instanceof Boolean + || object instanceof Float || object instanceof Double + || object instanceof String) { + return object; + } + + if (object instanceof Collection) { + @SuppressWarnings("unchecked") + Collection coll = (Collection) object; + return new JSONArray(coll); + } + if (object.getClass().isArray()) { + return new JSONArray(object); + } + if (object instanceof Map) { + @SuppressWarnings("unchecked") + Map map = (Map) object; + return new JSONObject(map); + } + Package objectPackage = object.getClass().getPackage(); + String objectPackageName = objectPackage != null ? objectPackage + .getName() : ""; + if (objectPackageName.startsWith("java.") + || objectPackageName.startsWith("javax.") + || object.getClass().getClassLoader() == null) { + return object.toString(); + } + return new JSONObject(object); + } catch (Exception exception) { + return null; + } + } + + /** + * Write the contents of the JSONObject as JSON text to a writer. For + * compactness, no whitespace is added. + *

+ * Warning: This method assumes that the data structure is acyclical. + * + * @return The writer. + * @throws JSONException + */ + public Writer write(Writer writer) throws JSONException { + return this.write(writer, 0, 0); + } + + static final Writer writeValue(Writer writer, Object value, + int indentFactor, int indent) throws JSONException, IOException { + if (value == null || value.equals(null)) { + writer.write("null"); + } else if (value instanceof JSONObject) { + ((JSONObject) value).write(writer, indentFactor, indent); + } else if (value instanceof JSONArray) { + ((JSONArray) value).write(writer, indentFactor, indent); + } else if (value instanceof Map) { + @SuppressWarnings("unchecked") + Map map = (Map) value; + new JSONObject(map).write(writer, indentFactor, indent); + } else if (value instanceof Collection) { + @SuppressWarnings("unchecked") + Collection coll = (Collection) value; + new JSONArray(coll).write(writer, indentFactor, + indent); + } else if (value.getClass().isArray()) { + new JSONArray(value).write(writer, indentFactor, indent); + } else if (value instanceof Number) { + writer.write(numberToString((Number) value)); + } else if (value instanceof Boolean) { + writer.write(value.toString()); + } else if (value instanceof JSONString) { + Object o; + try { + o = ((JSONString) value).toJSONString(); + } catch (Exception e) { + throw new JSONException(e); + } + writer.write(o != null ? o.toString() : quote(value.toString())); + } else { + quote(value.toString(), writer); + } + return writer; + } + + static final void indent(Writer writer, int indent) throws IOException { + for (int i = 0; i < indent; i += 1) { + writer.write(' '); + } + } + + /** + * Write the contents of the JSONObject as JSON text to a writer. For + * compactness, no whitespace is added. + *

+ * Warning: This method assumes that the data structure is acyclical. + * + * @return The writer. + * @throws JSONException + */ + Writer write(Writer writer, int indentFactor, int indent) + throws JSONException { + try { + boolean commanate = false; + final int length = this.length(); + Iterator keys = this.keys(); + writer.write('{'); + + if (length == 1) { + Object key = keys.next(); + writer.write(quote(key.toString())); + writer.write(':'); + if (indentFactor > 0) { + writer.write(' '); + } + writeValue(writer, this.map.get(key), indentFactor, indent); + } else if (length != 0) { + final int newindent = indent + indentFactor; + while (keys.hasNext()) { + Object key = keys.next(); + if (commanate) { + writer.write(','); + } + if (indentFactor > 0) { + writer.write('\n'); + } + indent(writer, newindent); + writer.write(quote(key.toString())); + writer.write(':'); + if (indentFactor > 0) { + writer.write(' '); + } + writeValue(writer, this.map.get(key), indentFactor, newindent); + commanate = true; + } + if (indentFactor > 0) { + writer.write('\n'); + } + indent(writer, indent); + } + writer.write('}'); + return writer; + } catch (IOException exception) { + throw new JSONException(exception); + } + } + + //checks if the keyValue pair exists + public boolean has(String key, String value) + { + return ( this.has(key) && String.valueOf(this.get(key)).equals(value)); + } +} diff --git a/JSONString.java b/JSONString.java new file mode 100644 index 0000000..f1977cc --- /dev/null +++ b/JSONString.java @@ -0,0 +1,19 @@ +package jsonnoexception; + +/** + * The JSONString interface allows a toJSONString() + * method so that a class can change the behavior of + * JSONObject.toString(), JSONArray.toString(), + * and JSONWriter.value(Object). The + * toJSONString method will be used instead of the default behavior + * of using the Object's toString() method and quoting the result. + */ +public interface JSONString { + /** + * The toJSONString method allows a class to produce its own JSON + * serialization. + * + * @return A strictly syntactically correct JSON text. + */ + public String toJSONString(); +} diff --git a/JSONStringer.java b/JSONStringer.java new file mode 100644 index 0000000..c6c54c3 --- /dev/null +++ b/JSONStringer.java @@ -0,0 +1,79 @@ +package jsonnoexception; + + +/* +Copyright (c) 2006 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +import java.io.StringWriter; + +/** + * JSONStringer provides a quick and convenient way of producing JSON text. + * The texts produced strictly conform to JSON syntax rules. No whitespace is + * added, so the results are ready for transmission or storage. Each instance of + * JSONStringer can produce one JSON text. + *

+ * A JSONStringer instance provides a value method for appending + * values to the + * text, and a key + * method for adding keys before values in objects. There are array + * and endArray methods that make and bound array values, and + * object and endObject methods which make and bound + * object values. All of these methods return the JSONWriter instance, + * permitting cascade style. For example, 

+ * myString = new JSONStringer()
+ *     .object()
+ *         .key("JSON")
+ *         .value("Hello, World!")
+ *     .endObject()
+ *     .toString();
which produces the string 
+ * {"JSON":"Hello, World!"}
+ *

+ * The first method called must be array or object. + * There are no methods for adding commas or colons. JSONStringer adds them for + * you. Objects and arrays can be nested up to 20 levels deep. + *

+ * This can sometimes be easier than using a JSONObject to build a string. + * @author JSON.org + * @version 2008-09-18 + */ +public class JSONStringer extends JSONWriter { + /** + * Make a fresh JSONStringer. It can be used to build one JSON text. + */ + public JSONStringer() { + super(new StringWriter()); + } + + /** + * Return the JSON text. This method is used to obtain the product of the + * JSONStringer instance. It will return null if there was a + * problem in the construction of the JSON text (such as the calls to + * array were not properly balanced with calls to + * endArray). + * @return The JSON text. + */ + public String toString() { + return this.mode == 'd' ? this.writer.toString() : null; + } +} diff --git a/JSONTokener.java b/JSONTokener.java new file mode 100644 index 0000000..2cc4b60 --- /dev/null +++ b/JSONTokener.java @@ -0,0 +1,447 @@ +package jsonnoexception; + + +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.io.Reader; +import java.io.StringReader; + +/* +Copyright (c) 2002 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +/** + * A JSONTokener takes a source string and extracts characters and tokens from + * it. It is used by the JSONObject and JSONArray constructors to parse + * JSON source strings. + * @author JSON.org + * @version 2014-05-03 + */ +public class JSONTokener { + + private long character; + private boolean eof; + private long index; + private long line; + private char previous; + private Reader reader; + private boolean usePrevious; + + + /** + * Construct a JSONTokener from a Reader. + * + * @param reader A reader. + */ + public JSONTokener(Reader reader) { + this.reader = reader.markSupported() + ? reader + : new BufferedReader(reader); + this.eof = false; + this.usePrevious = false; + this.previous = 0; + this.index = 0; + this.character = 1; + this.line = 1; + } + + + /** + * Construct a JSONTokener from an InputStream. + * @param inputStream The source. + */ + public JSONTokener(InputStream inputStream) throws JSONException { + this(new InputStreamReader(inputStream)); + } + + + /** + * Construct a JSONTokener from a string. + * + * @param s A source string. + */ + public JSONTokener(String s) { + this(new StringReader(s)); + } + + + /** + * Back up one character. This provides a sort of lookahead capability, + * so that you can test for a digit or letter before attempting to parse + * the next number or identifier. + */ + public void back() throws JSONException { + if (this.usePrevious || this.index <= 0) { + throw new JSONException("Stepping back two steps is not supported"); + } + this.index -= 1; + this.character -= 1; + this.usePrevious = true; + this.eof = false; + } + + + /** + * Get the hex value of a character (base16). + * @param c A character between '0' and '9' or between 'A' and 'F' or + * between 'a' and 'f'. + * @return An int between 0 and 15, or -1 if c was not a hex digit. + */ + public static int dehexchar(char c) { + if (c >= '0' && c <= '9') { + return c - '0'; + } + if (c >= 'A' && c <= 'F') { + return c - ('A' - 10); + } + if (c >= 'a' && c <= 'f') { + return c - ('a' - 10); + } + return -1; + } + + public boolean end() { + return this.eof && !this.usePrevious; + } + + + /** + * Determine if the source string still contains characters that next() + * can consume. + * @return true if not yet at the end of the source. + */ + public boolean more() throws JSONException { + this.next(); + if (this.end()) { + return false; + } + this.back(); + return true; + } + + + /** + * Get the next character in the source string. + * + * @return The next character, or 0 if past the end of the source string. + */ + public char next() throws JSONException { + int c; + if (this.usePrevious) { + this.usePrevious = false; + c = this.previous; + } else { + try { + c = this.reader.read(); + } catch (IOException exception) { + throw new JSONException(exception); + } + + if (c <= 0) { // End of stream + this.eof = true; + c = 0; + } + } + this.index += 1; + if (this.previous == '\r') { + this.line += 1; + this.character = c == '\n' ? 0 : 1; + } else if (c == '\n') { + this.line += 1; + this.character = 0; + } else { + this.character += 1; + } + this.previous = (char) c; + return this.previous; + } + + + /** + * Consume the next character, and check that it matches a specified + * character. + * @param c The character to match. + * @return The character. + * @throws JSONException if the character does not match. + */ + public char next(char c) throws JSONException { + char n = this.next(); + if (n != c) { + throw this.syntaxError("Expected '" + c + "' and instead saw '" + + n + "'"); + } + return n; + } + + + /** + * Get the next n characters. + * + * @param n The number of characters to take. + * @return A string of n characters. + * @throws JSONException + * Substring bounds error if there are not + * n characters remaining in the source string. + */ + public String next(int n) throws JSONException { + if (n == 0) { + return ""; + } + + char[] chars = new char[n]; + int pos = 0; + + while (pos < n) { + chars[pos] = this.next(); + if (this.end()) { + throw this.syntaxError("Substring bounds error"); + } + pos += 1; + } + return new String(chars); + } + + + /** + * Get the next char in the string, skipping whitespace. + * @throws JSONException + * @return A character, or 0 if there are no more characters. + */ + public char nextClean() throws JSONException { + for (;;) { + char c = this.next(); + if (c == 0 || c > ' ') { + return c; + } + } + } + + + /** + * Return the characters up to the next close quote character. + * Backslash processing is done. The formal JSON format does not + * allow strings in single quotes, but an implementation is allowed to + * accept them. + * @param quote The quoting character, either + * " (double quote) or + * ' (single quote). + * @return A String. + * @throws JSONException Unterminated string. + */ + public String nextString(char quote) throws JSONException { + char c; + StringBuilder sb = new StringBuilder(); + for (;;) { + c = this.next(); + switch (c) { + case 0: + case '\n': + case '\r': + throw this.syntaxError("Unterminated string"); + case '\\': + c = this.next(); + switch (c) { + case 'b': + sb.append('\b'); + break; + case 't': + sb.append('\t'); + break; + case 'n': + sb.append('\n'); + break; + case 'f': + sb.append('\f'); + break; + case 'r': + sb.append('\r'); + break; + case 'u': + sb.append((char)Integer.parseInt(this.next(4), 16)); + break; + case '"': + case '\'': + case '\\': + case '/': + sb.append(c); + break; + default: + throw this.syntaxError("Illegal escape."); + } + break; + default: + if (c == quote) { + return sb.toString(); + } + sb.append(c); + } + } + } + + + /** + * Get the text up but not including the specified character or the + * end of line, whichever comes first. + * @param delimiter A delimiter character. + * @return A string. + */ + public String nextTo(char delimiter) throws JSONException { + StringBuilder sb = new StringBuilder(); + for (;;) { + char c = this.next(); + if (c == delimiter || c == 0 || c == '\n' || c == '\r') { + if (c != 0) { + this.back(); + } + return sb.toString().trim(); + } + sb.append(c); + } + } + + + /** + * Get the text up but not including one of the specified delimiter + * characters or the end of line, whichever comes first. + * @param delimiters A set of delimiter characters. + * @return A string, trimmed. + */ + public String nextTo(String delimiters) throws JSONException { + char c; + StringBuilder sb = new StringBuilder(); + for (;;) { + c = this.next(); + if (delimiters.indexOf(c) >= 0 || c == 0 || + c == '\n' || c == '\r') { + if (c != 0) { + this.back(); + } + return sb.toString().trim(); + } + sb.append(c); + } + } + + + /** + * Get the next value. The value can be a Boolean, Double, Integer, + * JSONArray, JSONObject, Long, or String, or the JSONObject.NULL object. + * @throws JSONException If syntax error. + * + * @return An object. + */ + public Object nextValue() throws JSONException { + char c = this.nextClean(); + String string; + + switch (c) { + case '"': + case '\'': + return this.nextString(c); + case '{': + this.back(); + return new JSONObject(this); + case '[': + this.back(); + return new JSONArray(this); + } + + /* + * Handle unquoted text. This could be the values true, false, or + * null, or it can be a number. An implementation (such as this one) + * is allowed to also accept non-standard forms. + * + * Accumulate characters until we reach the end of the text or a + * formatting character. + */ + + StringBuilder sb = new StringBuilder(); + while (c >= ' ' && ",:]}/\\\"[{;=#".indexOf(c) < 0) { + sb.append(c); + c = this.next(); + } + this.back(); + + string = sb.toString().trim(); + if ("".equals(string)) { + throw this.syntaxError("Missing value"); + } + return JSONObject.stringToValue(string); + } + + + /** + * Skip characters until the next character is the requested character. + * If the requested character is not found, no characters are skipped. + * @param to A character to skip to. + * @return The requested character, or zero if the requested character + * is not found. + */ + public char skipTo(char to) throws JSONException { + char c; + try { + long startIndex = this.index; + long startCharacter = this.character; + long startLine = this.line; + this.reader.mark(1000000); + do { + c = this.next(); + if (c == 0) { + this.reader.reset(); + this.index = startIndex; + this.character = startCharacter; + this.line = startLine; + return c; + } + } while (c != to); + } catch (IOException exception) { + throw new JSONException(exception); + } + this.back(); + return c; + } + + + /** + * Make a JSONException to signal a syntax error. + * + * @param message The error message. + * @return A JSONException object, suitable for throwing + */ + public JSONException syntaxError(String message) { + return new JSONException(message + this.toString()); + } + + + /** + * Make a printable string of this JSONTokener. + * + * @return " at {index} [character {character} line {line}]" + */ + public String toString() { + return " at " + this.index + " [character " + this.character + " line " + + this.line + "]"; + } +} diff --git a/JSONWriter.java b/JSONWriter.java new file mode 100644 index 0000000..251b96b --- /dev/null +++ b/JSONWriter.java @@ -0,0 +1,328 @@ +package jsonnoexception; + + +import java.io.IOException; +import java.io.Writer; + +/* +Copyright (c) 2006 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +/** + * JSONWriter provides a quick and convenient way of producing JSON text. + * The texts produced strictly conform to JSON syntax rules. No whitespace is + * added, so the results are ready for transmission or storage. Each instance of + * JSONWriter can produce one JSON text. + *

+ * A JSONWriter instance provides a value method for appending + * values to the + * text, and a key + * method for adding keys before values in objects. There are array + * and endArray methods that make and bound array values, and + * object and endObject methods which make and bound + * object values. All of these methods return the JSONWriter instance, + * permitting a cascade style. For example, 

+ * new JSONWriter(myWriter)
+ *     .object()
+ *         .key("JSON")
+ *         .value("Hello, World!")
+ *     .endObject();
which writes 
+ * {"JSON":"Hello, World!"}
+ *

+ * The first method called must be array or object. + * There are no methods for adding commas or colons. JSONWriter adds them for + * you. Objects and arrays can be nested up to 20 levels deep. + *

+ * This can sometimes be easier than using a JSONObject to build a string. + * @author JSON.org + * @version 2011-11-24 + */ +public class JSONWriter { + private static final int maxdepth = 200; + + /** + * The comma flag determines if a comma should be output before the next + * value. + */ + private boolean comma; + + /** + * The current mode. Values: + * 'a' (array), + * 'd' (done), + * 'i' (initial), + * 'k' (key), + * 'o' (object). + */ + protected char mode; + + /** + * The object/array stack. + */ + private final JSONObject stack[]; + + /** + * The stack top index. A value of 0 indicates that the stack is empty. + */ + private int top; + + /** + * The writer that will receive the output. + */ + protected Writer writer; + + /** + * Make a fresh JSONWriter. It can be used to build one JSON text. + */ + public JSONWriter(Writer w) { + this.comma = false; + this.mode = 'i'; + this.stack = new JSONObject[maxdepth]; + this.top = 0; + this.writer = w; + } + + /** + * Append a value. + * @param string A string value. + * @return this + * @throws JSONException If the value is out of sequence. + */ + private JSONWriter append(String string) throws JSONException { + if (string == null) { + throw new JSONException("Null pointer"); + } + if (this.mode == 'o' || this.mode == 'a') { + try { + if (this.comma && this.mode == 'a') { + this.writer.write(','); + } + this.writer.write(string); + } catch (IOException e) { + throw new JSONException(e); + } + if (this.mode == 'o') { + this.mode = 'k'; + } + this.comma = true; + return this; + } + throw new JSONException("Value out of sequence."); + } + + /** + * Begin appending a new array. All values until the balancing + * endArray will be appended to this array. The + * endArray method must be called to mark the array's end. + * @return this + * @throws JSONException If the nesting is too deep, or if the object is + * started in the wrong place (for example as a key or after the end of the + * outermost array or object). + */ + public JSONWriter array() throws JSONException { + if (this.mode == 'i' || this.mode == 'o' || this.mode == 'a') { + this.push(null); + this.append("["); + this.comma = false; + return this; + } + throw new JSONException("Misplaced array."); + } + + /** + * End something. + * @param mode Mode + * @param c Closing character + * @return this + * @throws JSONException If unbalanced. + */ + private JSONWriter end(char mode, char c) throws JSONException { + if (this.mode != mode) { + throw new JSONException(mode == 'a' + ? "Misplaced endArray." + : "Misplaced endObject."); + } + this.pop(mode); + try { + this.writer.write(c); + } catch (IOException e) { + throw new JSONException(e); + } + this.comma = true; + return this; + } + + /** + * End an array. This method most be called to balance calls to + * array. + * @return this + * @throws JSONException If incorrectly nested. + */ + public JSONWriter endArray() throws JSONException { + return this.end('a', ']'); + } + + /** + * End an object. This method most be called to balance calls to + * object. + * @return this + * @throws JSONException If incorrectly nested. + */ + public JSONWriter endObject() throws JSONException { + return this.end('k', '}'); + } + + /** + * Append a key. The key will be associated with the next value. In an + * object, every value must be preceded by a key. + * @param string A key string. + * @return this + * @throws JSONException If the key is out of place. For example, keys + * do not belong in arrays or if the key is null. + */ + public JSONWriter key(String string) throws JSONException { + if (string == null) { + throw new JSONException("Null key."); + } + if (this.mode == 'k') { + try { + this.stack[this.top - 1].putOnce(string, Boolean.TRUE); + if (this.comma) { + this.writer.write(','); + } + this.writer.write(JSONObject.quote(string)); + this.writer.write(':'); + this.comma = false; + this.mode = 'o'; + return this; + } catch (IOException e) { + throw new JSONException(e); + } + } + throw new JSONException("Misplaced key."); + } + + + /** + * Begin appending a new object. All keys and values until the balancing + * endObject will be appended to this object. The + * endObject method must be called to mark the object's end. + * @return this + * @throws JSONException If the nesting is too deep, or if the object is + * started in the wrong place (for example as a key or after the end of the + * outermost array or object). + */ + public JSONWriter object() throws JSONException { + if (this.mode == 'i') { + this.mode = 'o'; + } + if (this.mode == 'o' || this.mode == 'a') { + this.append("{"); + this.push(new JSONObject()); + this.comma = false; + return this; + } + throw new JSONException("Misplaced object."); + + } + + + /** + * Pop an array or object scope. + * @param c The scope to close. + * @throws JSONException If nesting is wrong. + */ + private void pop(char c) throws JSONException { + if (this.top <= 0) { + throw new JSONException("Nesting error."); + } + char m = this.stack[this.top - 1] == null ? 'a' : 'k'; + if (m != c) { + throw new JSONException("Nesting error."); + } + this.top -= 1; + this.mode = this.top == 0 + ? 'd' + : this.stack[this.top - 1] == null + ? 'a' + : 'k'; + } + + /** + * Push an array or object scope. + * @param jo The scope to open. + * @throws JSONException If nesting is too deep. + */ + private void push(JSONObject jo) throws JSONException { + if (this.top >= maxdepth) { + throw new JSONException("Nesting too deep."); + } + this.stack[this.top] = jo; + this.mode = jo == null ? 'a' : 'k'; + this.top += 1; + } + + + /** + * Append either the value true or the value + * false. + * @param b A boolean. + * @return this + * @throws JSONException + */ + public JSONWriter value(boolean b) throws JSONException { + return this.append(b ? "true" : "false"); + } + + /** + * Append a double value. + * @param d A double. + * @return this + * @throws JSONException If the number is not finite. + */ + public JSONWriter value(double d) throws JSONException { + return this.value(new Double(d)); + } + + /** + * Append a long value. + * @param l A long. + * @return this + * @throws JSONException + */ + public JSONWriter value(long l) throws JSONException { + return this.append(Long.toString(l)); + } + + + /** + * Append an object value. + * @param object The object to append. It can be null, or a Boolean, Number, + * String, JSONObject, or JSONArray, or an object that implements JSONString. + * @return this + * @throws JSONException If the value is out of sequence. + */ + public JSONWriter value(Object object) throws JSONException { + return this.append(JSONObject.valueToString(object)); + } +} diff --git a/Property.java b/Property.java new file mode 100644 index 0000000..7067d6c --- /dev/null +++ b/Property.java @@ -0,0 +1,73 @@ +package jsonnoexception; + + +/* +Copyright (c) 2002 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +import java.util.Enumeration; +import java.util.Iterator; +import java.util.Properties; + +/** + * Converts a Property file data into JSONObject and back. + * @author JSON.org + * @version 2015-05-05 + */ +public class Property { + /** + * Converts a property file object into a JSONObject. The property file object is a table of name value pairs. + * @param properties java.util.Properties + * @return JSONObject + * @throws JSONException + */ + public static JSONObject toJSONObject(java.util.Properties properties) throws JSONException { + JSONObject jo = new JSONObject(); + if (properties != null && !properties.isEmpty()) { + Enumeration enumProperties = properties.propertyNames(); + while(enumProperties.hasMoreElements()) { + String name = (String)enumProperties.nextElement(); + jo.put(name, properties.getProperty(name)); + } + } + return jo; + } + + /** + * Converts the JSONObject into a property file object. + * @param jo JSONObject + * @return java.util.Properties + * @throws JSONException + */ + public static Properties toProperties(JSONObject jo) throws JSONException { + Properties properties = new Properties(); + if (jo != null) { + Iterator keys = jo.keys(); + while (keys.hasNext()) { + String name = keys.next(); + properties.put(name, jo.getString(name)); + } + } + return properties; + } +} diff --git a/README.txt b/README.txt new file mode 100644 index 0000000..2de22ff --- /dev/null +++ b/README.txt @@ -0,0 +1,73 @@ +JSON in Java [package org.json] + +This package needs a new owner. I have not used it in over a decade, and I do +not have time to maintain programs that I do not use. + +If you think you can give this package a good home, please contact me. + +Douglas Crockford +douglas@crockford.com + +2015-02-06 + + +JSON is a light-weight, language independent, data interchange format. +See http://www.JSON.org/ + +The files in this package implement JSON encoders/decoders in Java. +It also includes the capability to convert between JSON and XML, HTTP +headers, Cookies, and CDL. + +This is a reference implementation. There is a large number of JSON packages +in Java. Perhaps someday the Java community will standardize on one. Until +then, choose carefully. + +The license includes this restriction: "The software shall be used for good, +not evil." If your conscience cannot live with that, then choose a different +package. + +The package compiles on Java 1.8. + + +JSONObject.java: The JSONObject can parse text from a String or a JSONTokener +to produce a map-like object. The object provides methods for manipulating its +contents, and for producing a JSON compliant object serialization. + +JSONArray.java: The JSONObject can parse text from a String or a JSONTokener +to produce a vector-like object. The object provides methods for manipulating +its contents, and for producing a JSON compliant array serialization. + +JSONTokener.java: The JSONTokener breaks a text into a sequence of individual +tokens. It can be constructed from a String, Reader, or InputStream. + +JSONException.java: The JSONException is the standard exception type thrown +by this package. + + +JSONString.java: The JSONString interface requires a toJSONString method, +allowing an object to provide its own serialization. + +JSONStringer.java: The JSONStringer provides a convenient facility for +building JSON strings. + +JSONWriter.java: The JSONWriter provides a convenient facility for building +JSON text through a writer. + + +CDL.java: CDL provides support for converting between JSON and comma +delimited lists. + +Cookie.java: Cookie provides support for converting between JSON and cookies. + +CookieList.java: CookieList provides support for converting between JSON and +cookie lists. + +HTTP.java: HTTP provides support for converting between JSON and HTTP headers. + +HTTPTokener.java: HTTPTokener extends JSONTokener for parsing HTTP headers. + +XML.java: XML provides support for converting between JSON and XML. + +JSONML.java: JSONML provides support for converting between JSONML and XML. + +XMLTokener.java: XMLTokener extends JSONTokener for parsing XML text. diff --git a/XML.java b/XML.java new file mode 100644 index 0000000..60c4fa6 --- /dev/null +++ b/XML.java @@ -0,0 +1,491 @@ +package jsonnoexception; + + +/* +Copyright (c) 2002 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +import java.util.Iterator; + +/** + * This provides static methods to convert an XML text into a JSONObject, + * and to covert a JSONObject into an XML text. + * @author JSON.org + * @version 2014-05-03 + */ +public class XML { + + /** The Character '&'. */ + public static final Character AMP = '&'; + + /** The Character '''. */ + public static final Character APOS = '\''; + + /** The Character '!'. */ + public static final Character BANG = '!'; + + /** The Character '='. */ + public static final Character EQ = '='; + + /** The Character '>'. */ + public static final Character GT = '>'; + + /** The Character '<'. */ + public static final Character LT = '<'; + + /** The Character '?'. */ + public static final Character QUEST = '?'; + + /** The Character '"'. */ + public static final Character QUOT = '"'; + + /** The Character '/'. */ + public static final Character SLASH = '/'; + + /** + * Replace special characters with XML escapes: + * 

+     * & (ampersand) is replaced by &amp;
+     * < (less than) is replaced by &lt;
+     * > (greater than) is replaced by &gt;
+     * " (double quote) is replaced by &quot;
+     *
+ * @param string The string to be escaped. + * @return The escaped string. + */ + public static String escape(String string) { + StringBuilder sb = new StringBuilder(string.length()); + for (int i = 0, length = string.length(); i < length; i++) { + char c = string.charAt(i); + switch (c) { + case '&': + sb.append("&"); + break; + case '<': + sb.append("<"); + break; + case '>': + sb.append(">"); + break; + case '"': + sb.append("""); + break; + case '\'': + sb.append("'"); + break; + default: + sb.append(c); + } + } + return sb.toString(); + } + + /** + * Throw an exception if the string contains whitespace. + * Whitespace is not allowed in tagNames and attributes. + * @param string A string. + * @throws JSONException + */ + public static void noSpace(String string) throws JSONException { + int i, length = string.length(); + if (length == 0) { + throw new JSONException("Empty string."); + } + for (i = 0; i < length; i += 1) { + if (Character.isWhitespace(string.charAt(i))) { + throw new JSONException("'" + string + + "' contains a space character."); + } + } + } + + /** + * Scan the content following the named tag, attaching it to the context. + * @param x The XMLTokener containing the source string. + * @param context The JSONObject that will include the new material. + * @param name The tag name. + * @return true if the close tag is processed. + * @throws JSONException + */ + private static boolean parse(XMLTokener x, JSONObject context, + String name) throws JSONException { + char c; + int i; + JSONObject jsonobject = null; + String string; + String tagName; + Object token; + +// Test for and skip past these forms: +// +// +// +// +// Report errors for these forms: +// <> +// <= +// << + + token = x.nextToken(); + +// "); + return false; + } + x.back(); + } else if (c == '[') { + token = x.nextToken(); + if ("CDATA".equals(token)) { + if (x.next() == '[') { + string = x.nextCDATA(); + if (string.length() > 0) { + context.accumulate("content", string); + } + return false; + } + } + throw x.syntaxError("Expected 'CDATA['"); + } + i = 1; + do { + token = x.nextMeta(); + if (token == null) { + throw x.syntaxError("Missing '>' after ' 0); + return false; + } else if (token == QUEST) { + +// "); + return false; + } else if (token == SLASH) { + +// Close tag + + } else if (token == SLASH) { + if (x.nextToken() != GT) { + throw x.syntaxError("Misshaped tag"); + } + if (jsonobject.length() > 0) { + context.accumulate(tagName, jsonobject); + } else { + context.accumulate(tagName, ""); + } + return false; + +// Content, between <...> and + + } else if (token == GT) { + for (;;) { + token = x.nextContent(); + if (token == null) { + if (tagName != null) { + throw x.syntaxError("Unclosed tag " + tagName); + } + return false; + } else if (token instanceof String) { + string = (String)token; + if (string.length() > 0) { + jsonobject.accumulate("content", + XML.stringToValue(string)); + } + +// Nested element + + } else if (token == LT) { + if (parse(x, jsonobject, tagName)) { + if (jsonobject.length() == 0) { + context.accumulate(tagName, ""); + } else if (jsonobject.length() == 1 && + jsonobject.opt("content") != null) { + context.accumulate(tagName, + jsonobject.opt("content")); + } else { + context.accumulate(tagName, jsonobject); + } + return false; + } + } + } + } else { + throw x.syntaxError("Misshaped tag"); + } + } + } + } + + + /** + * Try to convert a string into a number, boolean, or null. If the string + * can't be converted, return the string. This is much less ambitious than + * JSONObject.stringToValue, especially because it does not attempt to + * convert plus forms, octal forms, hex forms, or E forms lacking decimal + * points. + * @param string A String. + * @return A simple JSON value. + */ + public static Object stringToValue(String string) { + if ("true".equalsIgnoreCase(string)) { + return Boolean.TRUE; + } + if ("false".equalsIgnoreCase(string)) { + return Boolean.FALSE; + } + if ("null".equalsIgnoreCase(string)) { + return JSONObject.NULL; + } + +// If it might be a number, try converting it, first as a Long, and then as a +// Double. If that doesn't work, return the string. + + try { + char initial = string.charAt(0); + if (initial == '-' || (initial >= '0' && initial <= '9')) { + Long value = new Long(string); + if (value.toString().equals(string)) { + return value; + } + } + } catch (Exception ignore) { + try { + Double value = new Double(string); + if (value.toString().equals(string)) { + return value; + } + } catch (Exception ignoreAlso) { + } + } + return string; + } + + + /** + * Convert a well-formed (but not necessarily valid) XML string into a + * JSONObject. Some information may be lost in this transformation + * because JSON is a data format and XML is a document format. XML uses + * elements, attributes, and content text, while JSON uses unordered + * collections of name/value pairs and arrays of values. JSON does not + * does not like to distinguish between elements and attributes. + * Sequences of similar elements are represented as JSONArrays. Content + * text may be placed in a "content" member. Comments, prologs, DTDs, and + * <[ [ ]]> are ignored. + * @param string The source string. + * @return A JSONObject containing the structured data from the XML string. + * @throws JSONException + */ + public static JSONObject toJSONObject(String string) throws JSONException { + JSONObject jo = new JSONObject(); + XMLTokener x = new XMLTokener(string); + while (x.more() && x.skipPast("<")) { + parse(x, jo, null); + } + return jo; + } + + + /** + * Convert a JSONObject into a well-formed, element-normal XML string. + * @param object A JSONObject. + * @return A string. + * @throws JSONException + */ + public static String toString(Object object) throws JSONException { + return toString(object, null); + } + + + /** + * Convert a JSONObject into a well-formed, element-normal XML string. + * @param object A JSONObject. + * @param tagName The optional name of the enclosing tag. + * @return A string. + * @throws JSONException + */ + public static String toString(Object object, String tagName) + throws JSONException { + StringBuilder sb = new StringBuilder(); + int i; + JSONArray ja; + JSONObject jo; + String key; + Iterator keys; + int length; + String string; + Object value; + if (object instanceof JSONObject) { + +// Emit + + if (tagName != null) { + sb.append('<'); + sb.append(tagName); + sb.append('>'); + } + +// Loop thru the keys. + + jo = (JSONObject)object; + keys = jo.keys(); + while (keys.hasNext()) { + key = keys.next(); + value = jo.opt(key); + if (value == null) { + value = ""; + } + string = value instanceof String ? (String)value : null; + +// Emit content in body + + if ("content".equals(key)) { + if (value instanceof JSONArray) { + ja = (JSONArray)value; + length = ja.length(); + for (i = 0; i < length; i += 1) { + if (i > 0) { + sb.append('\n'); + } + sb.append(escape(ja.get(i).toString())); + } + } else { + sb.append(escape(value.toString())); + } + +// Emit an array of similar keys + + } else if (value instanceof JSONArray) { + ja = (JSONArray)value; + length = ja.length(); + for (i = 0; i < length; i += 1) { + value = ja.get(i); + if (value instanceof JSONArray) { + sb.append('<'); + sb.append(key); + sb.append('>'); + sb.append(toString(value)); + sb.append("'); + } else { + sb.append(toString(value, key)); + } + } + } else if ("".equals(value)) { + sb.append('<'); + sb.append(key); + sb.append("/>"); + +// Emit a new tag + + } else { + sb.append(toString(value, key)); + } + } + if (tagName != null) { + +// Emit the close tag + + sb.append("'); + } + return sb.toString(); + +// XML does not have good support for arrays. If an array appears in a place +// where XML is lacking, synthesize an element. + + } else { + if (object.getClass().isArray()) { + object = new JSONArray(object); + } + if (object instanceof JSONArray) { + ja = (JSONArray)object; + length = ja.length(); + for (i = 0; i < length; i += 1) { + sb.append(toString(ja.opt(i), tagName == null ? "array" : tagName)); + } + return sb.toString(); + } else { + string = (object == null) ? "null" : escape(object.toString()); + return (tagName == null) ? "\"" + string + "\"" : + (string.length() == 0) ? "<" + tagName + "/>" : + "<" + tagName + ">" + string + ""; + } + } + } +} diff --git a/XMLTokener.java b/XMLTokener.java new file mode 100644 index 0000000..9350d9a --- /dev/null +++ b/XMLTokener.java @@ -0,0 +1,365 @@ +package jsonnoexception; + +/* +Copyright (c) 2002 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +/** + * The XMLTokener extends the JSONTokener to provide additional methods + * for the parsing of XML texts. + * @author JSON.org + * @version 2014-05-03 + */ +public class XMLTokener extends JSONTokener { + + + /** The table of entity values. It initially contains Character values for + * amp, apos, gt, lt, quot. + */ + public static final java.util.HashMap entity; + + static { + entity = new java.util.HashMap(8); + entity.put("amp", XML.AMP); + entity.put("apos", XML.APOS); + entity.put("gt", XML.GT); + entity.put("lt", XML.LT); + entity.put("quot", XML.QUOT); + } + + /** + * Construct an XMLTokener from a string. + * @param s A source string. + */ + public XMLTokener(String s) { + super(s); + } + + /** + * Get the text in the CDATA block. + * @return The string up to the ]]>. + * @throws JSONException If the ]]> is not found. + */ + public String nextCDATA() throws JSONException { + char c; + int i; + StringBuilder sb = new StringBuilder(); + for (;;) { + c = next(); + if (end()) { + throw syntaxError("Unclosed CDATA"); + } + sb.append(c); + i = sb.length() - 3; + if (i >= 0 && sb.charAt(i) == ']' && + sb.charAt(i + 1) == ']' && sb.charAt(i + 2) == '>') { + sb.setLength(i); + return sb.toString(); + } + } + } + + + /** + * Get the next XML outer token, trimming whitespace. There are two kinds + * of tokens: the '<' character which begins a markup tag, and the content + * text between markup tags. + * + * @return A string, or a '<' Character, or null if there is no more + * source text. + * @throws JSONException + */ + public Object nextContent() throws JSONException { + char c; + StringBuilder sb; + do { + c = next(); + } while (Character.isWhitespace(c)); + if (c == 0) { + return null; + } + if (c == '<') { + return XML.LT; + } + sb = new StringBuilder(); + for (;;) { + if (c == '<' || c == 0) { + back(); + return sb.toString().trim(); + } + if (c == '&') { + sb.append(nextEntity(c)); + } else { + sb.append(c); + } + c = next(); + } + } + + + /** + * Return the next entity. These entities are translated to Characters: + * & ' > < ". + * @param ampersand An ampersand character. + * @return A Character or an entity String if the entity is not recognized. + * @throws JSONException If missing ';' in XML entity. + */ + public Object nextEntity(char ampersand) throws JSONException { + StringBuilder sb = new StringBuilder(); + for (;;) { + char c = next(); + if (Character.isLetterOrDigit(c) || c == '#') { + sb.append(Character.toLowerCase(c)); + } else if (c == ';') { + break; + } else { + throw syntaxError("Missing ';' in XML entity: &" + sb); + } + } + String string = sb.toString(); + Object object = entity.get(string); + return object != null ? object : ampersand + string + ";"; + } + + + /** + * Returns the next XML meta token. This is used for skipping over + * and structures. + * @return Syntax characters (< > / = ! ?) are returned as + * Character, and strings and names are returned as Boolean. We don't care + * what the values actually are. + * @throws JSONException If a string is not properly closed or if the XML + * is badly structured. + */ + public Object nextMeta() throws JSONException { + char c; + char q; + do { + c = next(); + } while (Character.isWhitespace(c)); + switch (c) { + case 0: + throw syntaxError("Misshaped meta tag"); + case '<': + return XML.LT; + case '>': + return XML.GT; + case '/': + return XML.SLASH; + case '=': + return XML.EQ; + case '!': + return XML.BANG; + case '?': + return XML.QUEST; + case '"': + case '\'': + q = c; + for (;;) { + c = next(); + if (c == 0) { + throw syntaxError("Unterminated string"); + } + if (c == q) { + return Boolean.TRUE; + } + } + default: + for (;;) { + c = next(); + if (Character.isWhitespace(c)) { + return Boolean.TRUE; + } + switch (c) { + case 0: + case '<': + case '>': + case '/': + case '=': + case '!': + case '?': + case '"': + case '\'': + back(); + return Boolean.TRUE; + } + } + } + } + + + /** + * Get the next XML Token. These tokens are found inside of angle + * brackets. It may be one of these characters: / > = ! ? or it + * may be a string wrapped in single quotes or double quotes, or it may be a + * name. + * @return a String or a Character. + * @throws JSONException If the XML is not well formed. + */ + public Object nextToken() throws JSONException { + char c; + char q; + StringBuilder sb; + do { + c = next(); + } while (Character.isWhitespace(c)); + switch (c) { + case 0: + throw syntaxError("Misshaped element"); + case '<': + throw syntaxError("Misplaced '<'"); + case '>': + return XML.GT; + case '/': + return XML.SLASH; + case '=': + return XML.EQ; + case '!': + return XML.BANG; + case '?': + return XML.QUEST; + +// Quoted string + + case '"': + case '\'': + q = c; + sb = new StringBuilder(); + for (;;) { + c = next(); + if (c == 0) { + throw syntaxError("Unterminated string"); + } + if (c == q) { + return sb.toString(); + } + if (c == '&') { + sb.append(nextEntity(c)); + } else { + sb.append(c); + } + } + default: + +// Name + + sb = new StringBuilder(); + for (;;) { + sb.append(c); + c = next(); + if (Character.isWhitespace(c)) { + return sb.toString(); + } + switch (c) { + case 0: + return sb.toString(); + case '>': + case '/': + case '=': + case '!': + case '?': + case '[': + case ']': + back(); + return sb.toString(); + case '<': + case '"': + case '\'': + throw syntaxError("Bad character in a name"); + } + } + } + } + + + /** + * Skip characters until past the requested string. + * If it is not found, we are left at the end of the source with a result of false. + * @param to A string to skip past. + * @throws JSONException + */ + public boolean skipPast(String to) throws JSONException { + boolean b; + char c; + int i; + int j; + int offset = 0; + int length = to.length(); + char[] circle = new char[length]; + + /* + * First fill the circle buffer with as many characters as are in the + * to string. If we reach an early end, bail. + */ + + for (i = 0; i < length; i += 1) { + c = next(); + if (c == 0) { + return false; + } + circle[i] = c; + } + + /* We will loop, possibly for all of the remaining characters. */ + + for (;;) { + j = offset; + b = true; + + /* Compare the circle buffer with the to string. */ + + for (i = 0; i < length; i += 1) { + if (circle[j] != to.charAt(i)) { + b = false; + break; + } + j += 1; + if (j >= length) { + j -= length; + } + } + + /* If we exit the loop with b intact, then victory is ours. */ + + if (b) { + return true; + } + + /* Get the next character. If there isn't one, then defeat is ours. */ + + c = next(); + if (c == 0) { + return false; + } + /* + * Shove the character in the circle buffer and advance the + * circle offset. The offset is mod n. + */ + circle[offset] = c; + offset += 1; + if (offset >= length) { + offset -= length; + } + } + } +}