001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018 package org.apache.oozie.jms;
019
020 import javax.jms.DeliveryMode;
021 import javax.jms.JMSException;
022 import javax.jms.MessageProducer;
023 import javax.jms.Session;
024 import javax.jms.TextMessage;
025
026 import org.apache.hadoop.conf.Configuration;
027 import org.apache.oozie.sla.listener.SLAEventListener;
028 import org.apache.oozie.client.event.jms.JMSHeaderConstants;
029 import org.apache.oozie.client.event.message.SLAMessage;
030 import org.apache.oozie.client.event.SLAEvent;
031 import org.apache.oozie.event.messaging.MessageFactory;
032 import org.apache.oozie.event.messaging.MessageSerializer;
033 import org.apache.oozie.service.JMSAccessorService;
034 import org.apache.oozie.service.JMSTopicService;
035 import org.apache.oozie.service.Services;
036 import org.apache.oozie.util.XLog;
037
038 public class JMSSLAEventListener extends SLAEventListener {
039
040 private JMSAccessorService jmsService = Services.get().get(JMSAccessorService.class);
041 private JMSTopicService jmsTopicService = Services.get().get(JMSTopicService.class);
042 private JMSConnectionInfo connInfo;
043 private int jmsSessionOpts;
044 private int jmsDeliveryMode;
045 private int jmsExpirationDate;
046 private ConnectionContext jmsContext;
047 private static XLog LOG;
048
049 @Override
050 public void init(Configuration conf) throws Exception {
051 String jmsProps = conf.get(JMSJobEventListener.JMS_CONNECTION_PROPERTIES);
052 connInfo = new JMSConnectionInfo(jmsProps);
053 LOG = XLog.getLog(getClass());
054 jmsSessionOpts = conf.getInt(JMSJobEventListener.JMS_SESSION_OPTS, Session.AUTO_ACKNOWLEDGE);
055 jmsDeliveryMode = conf.getInt(JMSJobEventListener.JMS_DELIVERY_MODE, DeliveryMode.PERSISTENT);
056 jmsExpirationDate = conf.getInt(JMSJobEventListener.JMS_EXPIRATION_DATE, 0);
057 }
058
059 @Override
060 public void onStartMiss(SLAEvent event) {
061 sendSLANotification(event);
062 }
063
064 @Override
065 public void onEndMiss(SLAEvent event) {
066 sendSLANotification(event);
067 }
068
069 @Override
070 public void onDurationMiss(SLAEvent event) {
071 sendSLANotification(event);
072 }
073
074 @Override
075 public void onStartMet(SLAEvent event) {
076 sendSLANotification(event);
077 }
078
079 @Override
080 public void onEndMet(SLAEvent event) {
081 sendSLANotification(event);
082 }
083
084 @Override
085 public void onDurationMet(SLAEvent event) {
086 sendSLANotification(event);
087 }
088
089 protected void sendSLANotification(SLAEvent event) {
090 SLAMessage slaMsg = MessageFactory.createSLAMessage(event);
091 MessageSerializer serializer = MessageFactory.getMessageSerializer();
092 String messageBody = serializer.getSerializedObject(slaMsg);
093 String serializerMessageFormat = serializer.getMessageFormat();
094 String topicName = getTopic(event);
095 sendJMSMessage(slaMsg, messageBody, topicName, serializerMessageFormat);
096 }
097
098 protected void sendJMSMessage(SLAMessage slaMsg, String messageBody, String topicName,
099 String messageFormat) {
100 jmsContext = jmsService.createProducerConnectionContext(connInfo);
101 if (jmsContext != null) {
102 try {
103 Session session = jmsContext.createThreadLocalSession(jmsSessionOpts);
104 TextMessage textMessage = session.createTextMessage(messageBody);
105 textMessage.setStringProperty(JMSHeaderConstants.EVENT_STATUS, slaMsg.getEventStatus().toString());
106 textMessage.setStringProperty(JMSHeaderConstants.SLA_STATUS, slaMsg.getSLAStatus().toString());
107 textMessage.setStringProperty(JMSHeaderConstants.APP_TYPE, slaMsg.getAppType().toString());
108 textMessage.setStringProperty(JMSHeaderConstants.MESSAGE_TYPE, slaMsg.getMessageType().toString());
109 textMessage.setStringProperty(JMSHeaderConstants.APP_NAME, slaMsg.getAppName());
110 textMessage.setStringProperty(JMSHeaderConstants.USER, slaMsg.getUser());
111 textMessage.setStringProperty(JMSHeaderConstants.MESSAGE_FORMAT, messageFormat);
112 LOG.trace("Event related JMS text body [{0}]", textMessage.getText());
113 LOG.trace("Event related JMS message [{0}]", textMessage.toString());
114 MessageProducer producer = jmsContext.createProducer(session, topicName);
115 producer.setDeliveryMode(jmsDeliveryMode);
116 producer.setTimeToLive(jmsExpirationDate);
117 producer.send(textMessage);
118 producer.close();
119 }
120 catch (JMSException jmse) {
121 LOG.error("Exception happened while sending event related jms message :" + messageBody, jmse);
122 }
123 }
124 else {
125 LOG.warn("No connection. Not sending message" + messageBody);
126 }
127 }
128
129 public String getTopic(SLAEvent event) {
130 if (jmsTopicService != null) {
131 return jmsTopicService.getTopic(event.getAppType(), event.getUser(), event.getId(), event.getParentId());
132 }
133 else {
134 throw new RuntimeException("JMSTopicService is not initialized");
135 }
136 }
137
138 @Override
139 public void destroy() {
140 }
141 }