/**
* 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.oozie.jms;
import javax.jms.DeliveryMode;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.apache.hadoop.conf.Configuration;
import org.apache.oozie.sla.listener.SLAEventListener;
import org.apache.oozie.client.event.jms.JMSHeaderConstants;
import org.apache.oozie.client.event.message.SLAMessage;
import org.apache.oozie.client.event.SLAEvent;
import org.apache.oozie.event.messaging.MessageFactory;
import org.apache.oozie.event.messaging.MessageSerializer;
import org.apache.oozie.service.JMSAccessorService;
import org.apache.oozie.service.JMSTopicService;
import org.apache.oozie.service.Services;
import org.apache.oozie.util.XLog;
public class JMSSLAEventListener extends SLAEventListener {
private JMSAccessorService jmsService = Services.get().get(JMSAccessorService.class);
private JMSTopicService jmsTopicService = Services.get().get(JMSTopicService.class);
private JMSConnectionInfo connInfo;
private int jmsSessionOpts;
private int jmsDeliveryMode;
private int jmsExpirationDate;
private ConnectionContext jmsContext;
private static XLog LOG;
@Override
public void init(Configuration conf) throws Exception {
String jmsProps = conf.get(JMSJobEventListener.JMS_CONNECTION_PROPERTIES);
connInfo = new JMSConnectionInfo(jmsProps);
LOG = XLog.getLog(getClass());
jmsSessionOpts = conf.getInt(JMSJobEventListener.JMS_SESSION_OPTS, Session.AUTO_ACKNOWLEDGE);
jmsDeliveryMode = conf.getInt(JMSJobEventListener.JMS_DELIVERY_MODE, DeliveryMode.PERSISTENT);
jmsExpirationDate = conf.getInt(JMSJobEventListener.JMS_EXPIRATION_DATE, 0);
}
@Override
public void onStartMiss(SLAEvent event) {
sendSLANotification(event);
}
@Override
public void onEndMiss(SLAEvent event) {
sendSLANotification(event);
}
@Override
public void onDurationMiss(SLAEvent event) {
sendSLANotification(event);
}
@Override
public void onStartMet(SLAEvent event) {
sendSLANotification(event);
}
@Override
public void onEndMet(SLAEvent event) {
sendSLANotification(event);
}
@Override
public void onDurationMet(SLAEvent event) {
sendSLANotification(event);
}
protected void sendSLANotification(SLAEvent event) {
SLAMessage slaMsg = MessageFactory.createSLAMessage(event);
MessageSerializer serializer = MessageFactory.getMessageSerializer();
String messageBody = serializer.getSerializedObject(slaMsg);
String serializerMessageFormat = serializer.getMessageFormat();
String topicName = getTopic(event);
sendJMSMessage(slaMsg, messageBody, topicName, serializerMessageFormat);
}
protected void sendJMSMessage(SLAMessage slaMsg, String messageBody, String topicName,
String messageFormat) {
jmsContext = jmsService.createProducerConnectionContext(connInfo);
if (jmsContext != null) {
try {
Session session = jmsContext.createThreadLocalSession(jmsSessionOpts);
TextMessage textMessage = session.createTextMessage(messageBody);
textMessage.setStringProperty(JMSHeaderConstants.EVENT_STATUS, slaMsg.getEventStatus().toString());
textMessage.setStringProperty(JMSHeaderConstants.SLA_STATUS, slaMsg.getSLAStatus().toString());
textMessage.setStringProperty(JMSHeaderConstants.APP_TYPE, slaMsg.getAppType().toString());
textMessage.setStringProperty(JMSHeaderConstants.MESSAGE_TYPE, slaMsg.getMessageType().toString());
textMessage.setStringProperty(JMSHeaderConstants.APP_NAME, slaMsg.getAppName());
textMessage.setStringProperty(JMSHeaderConstants.USER, slaMsg.getUser());
textMessage.setStringProperty(JMSHeaderConstants.MESSAGE_FORMAT, messageFormat);
LOG.trace("Event related JMS text body [{0}]", textMessage.getText());
LOG.trace("Event related JMS message [{0}]", textMessage.toString());
MessageProducer producer = jmsContext.createProducer(session, topicName);
producer.setDeliveryMode(jmsDeliveryMode);
producer.setTimeToLive(jmsExpirationDate);
producer.send(textMessage);
producer.close();
}
catch (JMSException jmse) {
LOG.error("Exception happened while sending event related jms message :" + messageBody, jmse);
}
}
else {
LOG.warn("No connection. Not sending message" + messageBody);
}
}
public String getTopic(SLAEvent event) {
if (jmsTopicService != null) {
return jmsTopicService.getTopic(event.getAppType(), event.getUser(), event.getId(), event.getParentId());
}
else {
throw new RuntimeException("JMSTopicService is not initialized");
}
}
@Override
public void destroy() {
}
}