/*
* 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.service.discovery.jms;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import org.apache.tuscany.spi.services.discovery.RequestListener;
import org.apache.tuscany.spi.util.stax.StaxUtil;
/**
* Tuscany JMS message listsner.
*
* @version $Revision: 520545 $ $Date: 2007-03-20 20:02:48 +0000 (Tue, 20 Mar 2007) $
*/
public class TuscanyMessageListener implements MessageListener {
// Discovery service
private JmsDiscoveryService discoveryService;
// Runtime id
private String runtimeId;
/**
* Initializes the discovery service.
* @param discoveryService Discovery service.
*/
public TuscanyMessageListener(JmsDiscoveryService discoveryService, String runtimeId) {
this.discoveryService = discoveryService;
this.runtimeId = runtimeId;
}
/**
* Message listener callback.
*/
public void onMessage(Message message) {
try {
// TODO investigate why selectors are not working
if(!runtimeId.equals(message.getStringProperty("runtimeId"))) {
return;
}
final TextMessage textMessage = (TextMessage)message;
final String text = textMessage.getText();
final QName messageType = StaxUtil.getDocumentElementQName(text);
System.err.println("Message received: " + messageType);
RequestListener messageListener = discoveryService.getRequestListener(messageType);
if (messageListener != null) {
XMLStreamReader requestReader = StaxUtil.createReader(text);
messageListener.onRequest(requestReader);
}
} catch (JMSException ex) {
throw new TuscanyJmsException(ex);
} catch (XMLStreamException ex) {
throw new TuscanyJmsException(ex);
}
}
}