- Added the "Monkey Patching" facility on DynamicProperties, along wi…

…th tests to ensure it works as advertised.

- Added a quick example script.

dynamic_properties.rb

@@ -130,6 +130,9 @@ def method_missing(name, *args)
       if property_name.nil?
         super
       else
+        # Monkey Patch the property so the next
+        # call doesn't go "missing"
+        self.patch_property property_name
         # if we are dealing with a getter
         if mode == :getter
           if @properties.has_key? property_name
@@ -145,5 +148,22 @@ def method_missing(name, *args)
       end
     end
 
+    # Monkey patch the existing class to have
+    # the property (thereby not incurring the
+    # overhead of a method_missing call)
+    # @param method_name [String] name of the method
+    # to add to the class.
+    def patch_property(method_name)
+      self.class.class_eval  %Q{
+         class #{self.class}
+           def #{method_name}
+             @properties['#{method_name}']
+           end
+           def #{method_name}=(value)
+             @properties['#{method_name}'] = value
+           end
+         end }
+    end
+
   end
 end

examples.rb

@@ -0,0 +1,31 @@
+require_relative 'dynamic_properties'
+require "date"
+
+class WeatherObservation
+  include Berico::DynamicProperties
+
+  def initialize
+    @date_time = ::DateTime.now
+  end
+
+  def to_s
+    output = "Weather Observation \n"
+    output << "  Time: #{@date_time}\n"
+    @properties.each do |key, value|
+       output << "  #{key}: #{value}\n"
+    end
+    output
+  end
+end
+
+observation = WeatherObservation.new
+
+observation.temperature = 75
+observation.dew_point = 25
+observation.wind_speed = 10
+observation.wind_dir = 270
+observation.visibility = 10
+observation.sky_con = :clear
+observation.altimeter = 29.92
+
+puts observation

spec/dynamic_properties_spec.rb

@@ -126,6 +126,34 @@ def initialize
 
       end
 
+      context "monkey_patch" do
+
+        it "should create a new accessor and mutator for a property the first time it goes missing" do
+
+          richard_clayton = "Richard Clayton"
+
+          dp = BasicDynoClass.new
+          dp.name = richard_clayton
+
+          dp.methods.include?(:name).should == true
+          dp.methods.include?(:name=).should == true
+
+          dp.properties.length.should == 1
+          dp.properties["name"].should == richard_clayton
+          dp.name.should == richard_clayton
+
+          joe_black = "Joe Black"
+
+          dp.name = joe_black
+
+          dp.properties.length.should == 1
+          dp.properties["name"].should == joe_black
+          dp.name.should == joe_black
+
+        end
+
+      end
+
       context "Validation Functions" do
 
         it "should return whether a configuration hash is valid" do