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From mfoj...@apache.org
Subject svn commit: r1041320 - in /incubator/deltacloud/trunk/client: lib/base_object.rb specs/instances_spec.rb
Date Thu, 02 Dec 2010 10:15:26 GMT
Author: mfojtik
Date: Thu Dec  2 10:15:26 2010
New Revision: 1041320

URL: http://svn.apache.org/viewvc?rev=1041320&view=rev
Log:
Namespace dynamically generated classes by type.

This resolves an issue where based on the results of one request,
the client will create an Instance class as a subclass of StateFullObject
then, based on the results of another request try to create an Instance
as a subclass of ActionObject, causing a superclass mismatch error.

This patch groups the dynamic classes inside nested containing classes
inside DeltaCloud::API, preventing collisions.

Modified:
    incubator/deltacloud/trunk/client/lib/base_object.rb
    incubator/deltacloud/trunk/client/specs/instances_spec.rb

Modified: incubator/deltacloud/trunk/client/lib/base_object.rb
URL: http://svn.apache.org/viewvc/incubator/deltacloud/trunk/client/lib/base_object.rb?rev=1041320&r1=1041319&r2=1041320&view=diff
==============================================================================
--- incubator/deltacloud/trunk/client/lib/base_object.rb (original)
+++ incubator/deltacloud/trunk/client/lib/base_object.rb Thu Dec  2 10:15:26 2010
@@ -192,7 +192,7 @@ module DeltaCloud
 
     end
 
-    class StateFullObject < ActionObject
+    class StatefulObject < ActionObject
       attr_reader :state
 
       def initialize(opts={}, &block)
@@ -263,25 +263,28 @@ module DeltaCloud
     end
 
     def self.add_class(name, parent=:base)
-      parent_class = case parent
-        when :base then 'BaseObject'
-        when :action then 'ActionObject'
-        when :state then 'StateFullObject'
-      end
+      parent = parent.to_s
+      parent_class = "#{parent.classify}Object"
       @defined_classes ||= []
-      if @defined_classes.include?(name)
-        DeltaCloud::API.class_eval("#{name.classify}")
-      else
-        DeltaCloud::API.class_eval("class #{name.classify} < DeltaCloud::#{parent_class};
end")
-        DeltaCloud::API.const_get("#{name.classify}")
+      class_name = "#{parent.classify}::#{name.classify}"
+      unless @defined_classes.include?(class_name)
+        DeltaCloud::API.class_eval("class #{class_name} < DeltaCloud::#{parent_class};
end")
+        @defined_classes << class_name
       end
+      
+      DeltaCloud::API.const_get(parent.classify).const_get(name.classify)
     end
 
     def self.guess_model_type(response)
       response = Nokogiri::XML(response.to_s)
       return :action if ((response/'//actions').length == 1) and ((response/'//state').length
== 0)
-      return :state if ((response/'//actions').length == 1) and ((response/'//state').length
== 1)
+      return :stateful if ((response/'//actions').length == 1) and ((response/'//state').length
== 1)
       return :base
     end
 
+    class API
+      class Action; end
+      class Base; end
+      class Stateful; end
+    end
 end

Modified: incubator/deltacloud/trunk/client/specs/instances_spec.rb
URL: http://svn.apache.org/viewvc/incubator/deltacloud/trunk/client/specs/instances_spec.rb?rev=1041320&r1=1041319&r2=1041320&view=diff
==============================================================================
--- incubator/deltacloud/trunk/client/specs/instances_spec.rb (original)
+++ incubator/deltacloud/trunk/client/specs/instances_spec.rb Thu Dec  2 10:15:26 2010
@@ -34,9 +34,9 @@ describe "instances" do
           instance.owner_id.should_not be_nil
           instance.owner_id.should be_a( String )
           instance.image.should_not be_nil
-          instance.image.should be_a( DeltaCloud::API::Image )
+          instance.image.should be_a( DeltaCloud::API::Base::Image )
           instance.hardware_profile.should_not be_nil
-          instance.hardware_profile.should be_a( DeltaCloud::API::HardwareProfile )
+          instance.hardware_profile.should be_a( DeltaCloud::API::Base::HardwareProfile )
           instance.state.should_not be_nil
           instance.state.should be_a( String )
           instance.public_addresses.should_not be_nil



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