/*
    * Copyright 2006-2011 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.
   */
  
  package org.kuali.rice.ksb.messaging.serviceproxies;
  
  import java.io.Serializable;
  import java.lang.reflect.Proxy;
  import java.util.List;
  
  import org.kuali.rice.core.api.config.property.ConfigContext;
  import org.kuali.rice.core.api.exception.RiceRuntimeException;
  import org.kuali.rice.core.impl.resourceloader.ContextClassLoaderProxy;
  import org.kuali.rice.core.util.ClassLoaderUtils;
  import org.kuali.rice.ksb.api.bus.Endpoint;
  import org.kuali.rice.ksb.api.messaging.AsynchronousCallback;
  import org.kuali.rice.ksb.messaging.MessageServiceInvoker;
  import org.kuali.rice.ksb.messaging.PersistedMessageBO;
  import org.kuali.rice.ksb.util.KSBConstants;
  
  
  /**
   * Used to Call a service synchronously but through the messaging code within workflow. Used to when switching generally
   * asynchronously called services to synchronously called services. Generally for testing purposes.
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   * 
   */
  public class SynchronousServiceCallProxy extends AsynchronousServiceCallProxy {
  
      private SynchronousServiceCallProxy(List<Endpoint> endpoints, AsynchronousCallback callback,
  	    Serializable context, String value1, String value2) {
  	super(endpoints, callback, context, value1, value2);
      }
  
      public static Object createInstance(List<Endpoint> endpoints, AsynchronousCallback callback,
  	    Serializable context, String value1, String value2) {
  	if (endpoints == null || endpoints.isEmpty()) {
  	    throw new RuntimeException("Cannot create service proxy, no service(s) passed in.");
  	}
  	try {
  	return Proxy.newProxyInstance(ClassLoaderUtils.getDefaultClassLoader(), ContextClassLoaderProxy
  		.getInterfacesToProxy(endpoints.get(0).getService()), new SynchronousServiceCallProxy(
  				endpoints, callback, context, value1, value2));
  	} catch (Exception e) {
  	    throw new RiceRuntimeException(e);
      }
      }
  
      @Override
      protected void executeMessage(PersistedMessageBO message) {
  	if (!Boolean.valueOf(ConfigContext.getCurrentContextConfig().getProperty(KSBConstants.Config.MESSAGING_OFF))) {
  	    new MessageServiceInvoker(message).run();
  	}
      }
  }