/*
* Copyright 2013 The Apache Software Foundation.
*
* Licensed 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.juddi.subscription.notify;
import java.net.URISyntaxException;
import java.rmi.RemoteException;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.juddi.api_v3.AccessPointType;
import org.apache.juddi.config.AppConfig;
import org.apache.juddi.jaxb.JAXBMarshaller;
import org.apache.juddi.model.BindingTemplate;
import org.uddi.api_v3.DispositionReport;
import org.uddi.api_v3.Result;
import org.uddi.subr_v3.NotifySubscriptionListener;
import org.uddi.v3_service.DispositionReportFaultMessage;
/**
* AMQP Notifier
*
* This is designed to enable users to setup AMQP based alerts for UDDI
* subscriptions
*
* This class is partically complete, but it is largely untested and lacks any
* kind of
*
* the following settings need to be added to the juddiv3.xml file
* amqp.java.naming.factory.initial=org.apache.qpid.jndi.PropertiesFileInitialContextFactory
* amqp.connectionfactory.qpidConnectionfactory amqp.destination=(some topic or
* queue name) amqp.destination.type=topic
*
* usage create a service/bindingtemplate/accessPoint where the value is
* amqp://url_to_qpid/amqp The useType must be "endPoint". create a subscription
* where the binding template reference points to this endpoint. trigger the
* subscription and wait for delivery.
*
* @author <a href="mailto:alexoree@apache.org">Alex O'Ree</a>
*/
public class AMQPNotifier implements Notifier {
Log log = LogFactory.getLog(this.getClass());
String destination = null;
String exchangeType = null;
String exchangeName = null;
public AMQPNotifier(BindingTemplate bindingTemplate) throws URISyntaxException, ConfigurationException {
super();
if (!AccessPointType.END_POINT.toString().equalsIgnoreCase(bindingTemplate.getAccessPointType())) {
log.error("AMQP enpoints only support AccessPointType " + AccessPointType.END_POINT);
}
String accessPointUrl = bindingTemplate.getAccessPointUrl().toLowerCase();
if (!accessPointUrl.startsWith("amqp:")) {
log.warn("AMQP accessPointUrl for bindingTemplate " + bindingTemplate.getEntityKey()
+ " should start with 'amqp:'");
}
destination = accessPointUrl;
for (int i = 0; i < bindingTemplate.getTmodelInstanceInfos().size(); i++) {
if (bindingTemplate.getTmodelInstanceInfos().get(i).getTmodelKey().equals(Demo.TMODEL_DESTINATION_TYPE)) {
exchangeType = bindingTemplate.getTmodelInstanceInfos().get(i).getInstanceParms();
}
if (bindingTemplate.getTmodelInstanceInfos().get(i).getTmodelKey().equals(Demo.TMODEL_DESTINATION_NAME)) {
exchangeName = bindingTemplate.getTmodelInstanceInfos().get(i).getInstanceParms();
}
}
}
@Override
public DispositionReport notifySubscriptionListener(NotifySubscriptionListener body) throws DispositionReportFaultMessage, RemoteException {
Connection connection = null;
Context context = null;
boolean success = false;
String err = null;
try {
if (destination != null && exchangeType != null && exchangeName != null) {
log.info("Sending notification AMQP to " + destination);
Properties properties = new Properties();
properties.put("java.naming.factory.initial", "org.apache.qpid.jndi.PropertiesFileInitialContextFactory");
properties.put("connectionfactory.qpidConnectionfactory", destination);
properties.put("destination." + exchangeName,exchangeType);
context = new InitialContext(properties);
ConnectionFactory connectionFactory = (ConnectionFactory) context.lookup("qpidConnectionfactory");
connection = connectionFactory.createConnection();
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Destination destinationLocal = (Destination) context.lookup(exchangeName);
MessageProducer messageProducer = session.createProducer(destinationLocal);
String subscriptionResultXML = JAXBMarshaller.marshallToString(body, JAXBMarshaller.PACKAGE_SUBSCR_RES);
TextMessage message = session.createTextMessage(subscriptionResultXML);
messageProducer.send(message);
success = true;
}
} catch (Exception e) {
e.printStackTrace();
log.error("Error deliverying AMQP subscription " + e.getMessage());
log.debug("Error deliverying AMQP subscription " + e.getMessage(),e);
err = e.getMessage();
} finally {
try {
if (connection != null) {
connection.close();
}
} catch (JMSException ex) {
log.error(null, ex);
}
try {
if (context != null) {
context.close();
}
} catch (NamingException ex) {
log.error(null, ex);
}
}
if (!success) {
throw new DispositionReportFaultMessage(err, null);
}
DispositionReport dr = new DispositionReport();
Result res = new Result();
dr.getResult().add(res);
return dr;
}
}