lib/config_mapper.rb in config_mapper-0.2.0 vs lib/config_mapper.rb in config_mapper-1.0.0

@@ -1,9 +1,11 @@
+require "config_mapper/attribute_sink"
+
 # Supports marshalling of plain-old data (e.g. loaded from
 # YAML files) onto strongly-typed objects.
 #
-class ConfigMapper
+module ConfigMapper
 
   # Attempt to set attributes on a target object.
   #
   # For simple, scalar values, set the attribute by calling the
   # named writer-method on the target object.
@@ -11,87 +13,11 @@
   # For Hash values, set attributes of the named sub-component.
   #
   # @return [Hash] exceptions encountered
   #
   def self.set(data, target)
-    mapper = new(target)
+    mapper = AttributeSink.new(target)
     mapper.set_attributes(data)
     mapper.errors
-  end
-
-  def initialize(target, errors = {})
-    @target = ObjectAsHash[target]
-    @errors = errors
-  end
-
-  attr_reader :target
-  attr_reader :errors
-
-  # Set multiple attributes from a Hash.
-  #
-  def set_attributes(data)
-    data.each do |key, value|
-      set_attribute(key, value)
-    end
-  end
-
-  private
-
-  # Set a single attribute.
-  #
-  def set_attribute(key, value)
-    if value.is_a?(Hash) && !target[key].nil?
-      nested_errors = ErrorProxy.new(errors, "#{key}.")
-      nested_mapper = self.class.new(target[key], nested_errors)
-      nested_mapper.set_attributes(value)
-    else
-      target[key] = value
-    end
-  rescue NoMethodError, ArgumentError => e
-    errors[key] = e
-  end
-
-  class ObjectAsHash
-
-    def self.[](target)
-      if target.is_a?(Hash)
-        target
-      else
-        ObjectAsHash.new(target)
-      end
-    end
-
-    def initialize(target)
-      @target = target
-    end
-
-    def [](key)
-      @target.public_send(key)
-    end
-
-    def []=(key, value)
-      @target.public_send("#{key}=", value)
-    end
-
-  end
-
-  # Wraps a Hash of errors, injecting prefixes
-  #
-  class ErrorProxy
-
-    def initialize(errors, prefix)
-      @errors = errors
-      @prefix = prefix
-    end
-
-    def []=(key, value)
-      errors[prefix + key] = value
-    end
-
-    private
-
-    attr_reader :errors
-    attr_reader :prefix
-
   end
 
 end