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
019package org.apache.oozie.jms;
020
021import javax.jms.DeliveryMode;
022import javax.jms.JMSException;
023import javax.jms.MessageProducer;
024import javax.jms.Session;
025import javax.jms.TextMessage;
026
027import org.apache.hadoop.conf.Configuration;
028import org.apache.oozie.sla.listener.SLAEventListener;
029import org.apache.oozie.client.event.jms.JMSHeaderConstants;
030import org.apache.oozie.client.event.message.SLAMessage;
031import org.apache.oozie.client.event.SLAEvent;
032import org.apache.oozie.event.messaging.MessageFactory;
033import org.apache.oozie.event.messaging.MessageSerializer;
034import org.apache.oozie.service.JMSAccessorService;
035import org.apache.oozie.service.JMSTopicService;
036import org.apache.oozie.service.Services;
037import org.apache.oozie.util.XLog;
038
039public class JMSSLAEventListener extends SLAEventListener {
040
041    private JMSAccessorService jmsService = Services.get().get(JMSAccessorService.class);
042    private JMSTopicService jmsTopicService = Services.get().get(JMSTopicService.class);
043    private JMSConnectionInfo connInfo;
044    private int jmsSessionOpts;
045    private int jmsDeliveryMode;
046    private int jmsExpirationDate;
047    private ConnectionContext jmsContext;
048    private static XLog LOG;
049
050    @Override
051    public void init(Configuration conf) throws Exception {
052        String jmsProps = conf.get(JMSJobEventListener.JMS_CONNECTION_PROPERTIES);
053        connInfo = new JMSConnectionInfo(jmsProps);
054        LOG = XLog.getLog(getClass());
055        jmsSessionOpts = conf.getInt(JMSJobEventListener.JMS_SESSION_OPTS, Session.AUTO_ACKNOWLEDGE);
056        jmsDeliveryMode = conf.getInt(JMSJobEventListener.JMS_DELIVERY_MODE, DeliveryMode.PERSISTENT);
057        jmsExpirationDate = conf.getInt(JMSJobEventListener.JMS_EXPIRATION_DATE, 0);
058    }
059
060    @Override
061    public void onStartMiss(SLAEvent event) {
062        sendSLANotification(event);
063    }
064
065    @Override
066    public void onEndMiss(SLAEvent event) {
067        sendSLANotification(event);
068    }
069
070    @Override
071    public void onDurationMiss(SLAEvent event) {
072        sendSLANotification(event);
073    }
074
075    @Override
076    public void onStartMet(SLAEvent event) {
077        sendSLANotification(event);
078    }
079
080    @Override
081    public void onEndMet(SLAEvent event) {
082        sendSLANotification(event);
083    }
084
085    @Override
086    public void onDurationMet(SLAEvent event) {
087        sendSLANotification(event);
088    }
089
090    protected void sendSLANotification(SLAEvent event) {
091        SLAMessage slaMsg = MessageFactory.createSLAMessage(event);
092        MessageSerializer serializer = MessageFactory.getMessageSerializer();
093        String messageBody = serializer.getSerializedObject(slaMsg);
094        String serializerMessageFormat = serializer.getMessageFormat();
095        String topicName = getTopic(event);
096        sendJMSMessage(slaMsg, messageBody, topicName, serializerMessageFormat);
097    }
098
099    protected void sendJMSMessage(SLAMessage slaMsg, String messageBody, String topicName,
100            String messageFormat) {
101        jmsContext = jmsService.createProducerConnectionContext(connInfo);
102        if (jmsContext != null) {
103            try {
104                Session session = jmsContext.createThreadLocalSession(jmsSessionOpts);
105                TextMessage textMessage = session.createTextMessage(messageBody);
106                textMessage.setStringProperty(JMSHeaderConstants.EVENT_STATUS, slaMsg.getEventStatus().toString());
107                textMessage.setStringProperty(JMSHeaderConstants.SLA_STATUS, slaMsg.getSLAStatus().toString());
108                textMessage.setStringProperty(JMSHeaderConstants.APP_TYPE, slaMsg.getAppType().toString());
109                textMessage.setStringProperty(JMSHeaderConstants.MESSAGE_TYPE, slaMsg.getMessageType().toString());
110                textMessage.setStringProperty(JMSHeaderConstants.APP_NAME, slaMsg.getAppName());
111                textMessage.setStringProperty(JMSHeaderConstants.USER, slaMsg.getUser());
112                textMessage.setStringProperty(JMSHeaderConstants.MESSAGE_FORMAT, messageFormat);
113                LOG.trace("Event related JMS text body [{0}]", textMessage.getText());
114                LOG.trace("Event related JMS message [{0}]", textMessage.toString());
115                MessageProducer producer = jmsContext.createProducer(session, topicName);
116                producer.setDeliveryMode(jmsDeliveryMode);
117                producer.setTimeToLive(jmsExpirationDate);
118                producer.send(textMessage);
119                producer.close();
120            }
121            catch (JMSException jmse) {
122                LOG.error("Exception happened while sending event related jms message :" + messageBody, jmse);
123            }
124        }
125        else {
126            LOG.warn("No connection. Not sending message" + messageBody);
127        }
128    }
129
130    public String getTopic(SLAEvent event) {
131        if (jmsTopicService != null) {
132            return jmsTopicService.getTopic(event.getAppType(), event.getUser(), event.getId(), event.getParentId());
133        }
134        else {
135            throw new RuntimeException("JMSTopicService is not initialized");
136        }
137    }
138
139    @Override
140    public void destroy() {
141    }
142}