Dry up configuration (#14)

* add class_cpmpser as dependency

* modify how errors are created; add composer and remove initialize

* update version bump

* nits

json_schematize.gemspec

@@ -29,6 +29,8 @@ Gem::Specification.new do |spec|
   spec.executables = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
+  spec.add_dependency "class_composer", "~> 1.0"
+
   spec.add_development_dependency "pry-byebug"
   spec.add_development_dependency "rake", "~> 12.0"
   spec.add_development_dependency "rspec", "~> 3.0"

lib/json_schematize.rb

@@ -1,26 +1,14 @@
 # frozen_string_literal: true
 
-require "json_schematize/version"
-
 require "json_schematize/base"
 require "json_schematize/boolean"
 require "json_schematize/configuration"
 require "json_schematize/empty_value"
+require "json_schematize/errors"
 require "json_schematize/generator"
 require "json_schematize/version"
 
 module JsonSchematize
-  class Error < StandardError; end
-  class ConfigError < StandardError; end
-  class FieldError < Error; end
-  class InvalidField < Error; end
-  class InvalidFieldByValidator < InvalidField; end
-  class InvalidFieldByType < InvalidField; end
-  class InvalidFieldByArrayOfTypes < InvalidField; end
-
-  ## Customized class errors
-  class UndefinedBoolean < Error; end
-
   def self.configure
     yield configuration if block_given?
   end

lib/json_schematize/configuration.rb

@@ -1,7 +1,12 @@
 # frozen_string_literal: true
 
+require "class_composer"
+require "json_schematize/errors"
+
 module JsonSchematize
   class Configuration
+    include ClassComposer::Generator
+
     DEFAULT_ONE_MIN = 60 * 60
     DEFAULT_ONE_HOUR = DEFAULT_ONE_MIN * 60
     DEFAULT_ONE_DAY = DEFAULT_ONE_HOUR * 24
@@ -14,16 +19,11 @@ class Configuration
       cache_update_on_change: true,
     }
 
-    attr_accessor *DEFAULT_CACHE_OPTIONS.keys
-
-    def initialize
-      @cache_client = DEFAULT_CACHE_OPTIONS[:cache_client]
-      @cache_key = DEFAULT_CACHE_OPTIONS[:cache_key]
-      @cache_namespace = DEFAULT_CACHE_OPTIONS[:cache_namespace]
-      @cache_stochastic_bust = DEFAULT_CACHE_OPTIONS[:cache_stochastic_bust]
-      @cache_ttl = DEFAULT_CACHE_OPTIONS[:cache_ttl]
-      @cache_update_on_change = DEFAULT_CACHE_OPTIONS[:cache_update_on_change]
-    end
+    add_composer :cache_key, allowed: Proc, default: DEFAULT_CACHE_OPTIONS[:cache_key], validation_error_klass: ::JsonSchematize::ConfigError, invalid_message: -> (val) { _assign_msg_("cache_key", "->(val, cusom_key) { val.hash }", "Default proc to assign cache key") }
+    add_composer :cache_namespace, allowed: [String, Symbol]
+    add_composer :cache_stochastic_bust, allowed: [Float, Integer], default: DEFAULT_CACHE_OPTIONS[:cache_stochastic_bust]
+    add_composer :cache_ttl, allowed: [Float, Integer], default: DEFAULT_CACHE_OPTIONS[:cache_ttl]
+    add_composer :cache_update_on_change, allowed: [TrueClass, FalseClass], default: DEFAULT_CACHE_OPTIONS[:cache_update_on_change]
 
     def cache_hash
       DEFAULT_CACHE_OPTIONS.map do |key, value|

lib/json_schematize/errors.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module JsonSchematize
+  class Error < StandardError; end
+  class ConfigError < Error; end
+  class FieldError < Error; end
+
+  class InvalidField < Error; end
+  class InvalidFieldByValidator < InvalidField; end
+  class InvalidFieldByType < InvalidField; end
+  class InvalidFieldByArrayOfTypes < InvalidField; end
+
+  ## Customized class errors
+  class UndefinedBoolean < Error; end
+end

lib/json_schematize/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module JsonSchematize
-  VERSION = "0.7.0"
+  VERSION = "0.8.0"
 end