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/*
* 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 javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Queue;
import javax.jms.Topic;
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.core.invocation.CallbackHandler;
import org.apache.tuscany.sca.core.invocation.Constants;
import org.apache.tuscany.sca.core.invocation.InterceptorAsyncImpl;
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;
import org.apache.tuscany.sca.assembly.Binding;
/**
* JMS Binding Interceptor class that deals with a callback destination address on the service side
*
*/
public class CallbackDestinationInterceptor extends InterceptorAsyncImpl {
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));
}
/**
* Handle an invocation request messaage
* @param msg the message
* @return the updated message
*/
public Message invokeRequest(Message msg) {
try {
// get the jms context
JMSBindingContext context = msg.getBindingContext();
javax.jms.Message jmsMsg = context.getJmsMsg();
// Extract the Callback destination name header, if present
String callbackdestName = jmsMsg.getStringProperty(JMSBindingConstants.CALLBACK_Q_PROPERTY);
if (callbackdestName != null) {
// If present, strip any leading "jms:jndi:" string
if (!callbackdestName.startsWith("jms:jndi:")) {
throw new JMSBindingException("message property " + JMSBindingConstants.CALLBACK_Q_PROPERTY + " does not start with 'jms:jndi:' found: " + callbackdestName);
} else {
callbackdestName = "jms:queue:" + callbackdestName.substring(9);
}
} else {
// If there is no Callback destination name header present, but the service is a callback, use the JMS ReplyTo header
// as per the spec this will override anything specified by the user in SCDL
if (service.getInterfaceContract().getCallbackInterface() != null) {
if ( ( jmsMsg.getJMSReplyTo() != null ) && msg.getOperation().isNonBlocking() ) {
Destination replyTo = jmsMsg.getJMSReplyTo();
if (replyTo != null) {
if (replyTo instanceof Queue){
callbackdestName = "jms:queue:" + ((Queue) replyTo).getQueueName();
} else {
callbackdestName = "jms:topic:" + ((Topic) replyTo).getTopicName();
}
}
} // end if
} // end if
} // end if
// Place the Callback destination name into the Callback EPRs for the service endpoint
if (callbackdestName != null) {
msg.getHeaders().put(Constants.CALLBACK, new CallbackHandler(callbackdestName));
} // end if
// Callback ID not used at present
// String callbackID = jmsMsg.getStringProperty(JMSBindingConstants.CALLBACK_ID_PROPERTY);
// if (callbackID != null) {
// parameters.setCallbackID(callbackID);
// }
} catch (JMSException e) {
throw new JMSBindingException(e);
} // end try
return msg;
} // end method invokeRequest
public Message processRequest(Message msg) {
return invokeRequest(msg);
} // end method processRequest
public Message processResponse(Message msg) {
return msg;
} // end method processResponse
} // end class
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