CallbackDestinationInterceptor.java

/*
 * 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.    
 */
package org.apache.tuscany.sca.binding.jms.wire;

import java.util.List;

import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Queue;
import javax.jms.Topic;

import org.apache.tuscany.sca.assembly.EndpointReference;
import org.apache.tuscany.sca.binding.jms.JMSBinding;
import org.apache.tuscany.sca.binding.jms.JMSBindingConstants;
import org.apache.tuscany.sca.binding.jms.JMSBindingException;
import org.apache.tuscany.sca.binding.jms.context.JMSBindingContext;
import org.apache.tuscany.sca.invocation.Interceptor;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.runtime.RuntimeComponentService;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;

public class CallbackDestinationInterceptor implements Interceptor {
    private Invoker next;
    private RuntimeComponentService service;
	private RuntimeEndpoint endpoint;
          
    public CallbackDestinationInterceptor(RuntimeEndpoint endpoint) {
        super();
        this.service = (RuntimeComponentService) endpoint.getService();
        this.endpoint = endpoint;
    }

    public Invoker getNext() {
        return next;
    }

    public void setNext(Invoker next) {
        this.next = next;
    }

    public Message invoke(Message msg) {
        return next.invoke(invokeRequest(msg));
    }

    public Message invokeRequest(Message msg) {
        try {
            // get the jms context
            JMSBindingContext context = msg.getBindingContext();
            javax.jms.Message jmsMsg = context.getJmsMsg();             
         
           
            if (service.getInterfaceContract().getCallbackInterface() != null) {

                String callbackdestName = jmsMsg.getStringProperty(JMSBindingConstants.CALLBACK_Q_PROPERTY);
                if (( callbackdestName == null) && ( jmsMsg.getJMSReplyTo() != null ) && msg.getOperation().isNonBlocking() ) {
                	Destination replyTo = jmsMsg.getJMSReplyTo();
                	if (replyTo != null) {
                		callbackdestName = (replyTo instanceof Queue) ? ((Queue) replyTo).getQueueName() : ((Topic) replyTo).getTopicName();
               	   	}
                } else {
                    if (callbackdestName != null) {
                        if (!callbackdestName.startsWith("jms:jndi:")) {
                            throw new JMSBindingException("message property " + JMSBindingConstants.CALLBACK_Q_PROPERTY + " does not start with 'jms:jndi:' found: " + callbackdestName);
                        } else {
                            callbackdestName = callbackdestName.substring(9);
                        }
                    }
                }
                
                if (callbackdestName != null) {
                	List<EndpointReference> refs = endpoint.getCallbackEndpointReferences();
                	for (EndpointReference ref : refs ) {
                		if  (ref.getBinding() instanceof JMSBinding ) {
                			JMSBinding callbackBinding = (JMSBinding) ref.getBinding();
                			callbackBinding.setDestinationName(callbackdestName);
                		}
                	}
               }  

                String callbackID = jmsMsg.getStringProperty(JMSBindingConstants.CALLBACK_ID_PROPERTY);
                if (callbackID != null) {
//                    parameters.setCallbackID(callbackID);
                }
            }

        } catch (JMSException e) {
            throw new JMSBindingException(e);
        }
        
        return msg;
    }
}