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 */
018package org.apache.oozie.jms;
019
020import javax.jms.DeliveryMode;
021import javax.jms.JMSException;
022import javax.jms.MessageProducer;
023import javax.jms.Session;
024import javax.jms.TextMessage;
025
026import org.apache.hadoop.conf.Configuration;
027import org.apache.oozie.sla.listener.SLAEventListener;
028import org.apache.oozie.client.event.jms.JMSHeaderConstants;
029import org.apache.oozie.client.event.message.SLAMessage;
030import org.apache.oozie.client.event.SLAEvent;
031import org.apache.oozie.event.messaging.MessageFactory;
032import org.apache.oozie.event.messaging.MessageSerializer;
033import org.apache.oozie.service.JMSAccessorService;
034import org.apache.oozie.service.JMSTopicService;
035import org.apache.oozie.service.Services;
036import org.apache.oozie.util.XLog;
037
038public 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}