/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 *   
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/* $Rev$ $Date$ */

#ifndef tuscany_sca_ruby_rubyserviceproxy_h
#define tuscany_sca_ruby_rubyserviceproxy_h

#include "tuscany/sca/ruby/Ruby.h"
#include "tuscany/sca/ruby/export.h"
#include "tuscany/sca/core/ServiceProxy.h" 
#include "tuscany/sca/core/ServiceWrapper.h" 
#include "tuscany/sca/model/Component.h"
#include "tuscany/sca/model/Reference.h"
#include "tuscany/sca/model/Service.h"


namespace tuscany
{
    namespace sca
    {
        namespace ruby
        {
            
            /**
             * Holds a proxy for a given component and reference.
             * The proxy which is held inside a ServiceProxy will be specific to the component
             * and reference and will have been code generated and be contained in a dll 
             * created by a developer of an SCA application.
             */
            class RubyServiceProxy : public ServiceProxy
            {
            public:
                /**
                 * Create a new service proxy for a reference. The proxy will contain a pointer to
                 * the target ServiceWrapper.
                 * @param reference The reference on the source component.
                 * @param target The wrapper of the service which is wired to this reference.
                 */
                RubyServiceProxy(tuscany::sca::model::Reference* reference);
    
                /**
                 * Create a new service proxy for a service. The proxy will contain a pointer to
                 * the target ServiceWrapper.
                 * @param reference The service on the target component.
                 * @param target The wrapper of the target service.
                 */
                RubyServiceProxy(tuscany::sca::model::Service* service);
    
                /**
                 * Destructor.
                 */
                virtual ~RubyServiceProxy();
    
                /**
                 * Returns the Ruby value of the proxy
                 */
                 VALUE getProxyValue() const { return proxyValue; };
                 
                 /**
                  * Handles the invocation of a Ruby method.
                  */
                  VALUE invoke(int argc, VALUE* argv);
            
            private:
            
                /**
                 * Create the Ruby proxy object
                 */
                 void createProxy();
    
                /**
                 * The target service wrapper
                 */
                 ServiceWrapper* serviceWrapper;

                /**
                 * The Ruby value of the proxy
                 */
                 VALUE proxyValue;
                 
                 /**
                  * The component owning the proxy
                  */
                  tuscany::sca::model::Component* component;

                /**
                 * The Ruby proxy class
                 */
                static VALUE proxyClass;                  
                 
            };
            
        } // End namespace ruby
    } // End namespace sca
} // End namespace tuscany

#endif // tuscany_sca_ruby_rubyserviceproxy_h