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 java.util.Map;
022
023import javax.jms.DeliveryMode;
024import javax.jms.JMSException;
025import javax.jms.MessageProducer;
026import javax.jms.Session;
027import javax.jms.TextMessage;
028
029import org.apache.hadoop.conf.Configuration;
030import org.apache.oozie.client.event.jms.JMSHeaderConstants;
031import org.apache.oozie.client.event.message.CoordinatorActionMessage;
032import org.apache.oozie.client.event.message.JobMessage;
033import org.apache.oozie.client.event.message.WorkflowJobMessage;
034import org.apache.oozie.event.BundleJobEvent;
035import org.apache.oozie.event.CoordinatorActionEvent;
036import org.apache.oozie.event.CoordinatorJobEvent;
037import org.apache.oozie.event.WorkflowActionEvent;
038import org.apache.oozie.event.WorkflowJobEvent;
039import org.apache.oozie.event.listener.JobEventListener;
040import org.apache.oozie.event.messaging.MessageFactory;
041import org.apache.oozie.event.messaging.MessageSerializer;
042import org.apache.oozie.service.ConfigurationService;
043import org.apache.oozie.service.JMSAccessorService;
044import org.apache.oozie.service.JMSTopicService;
045import org.apache.oozie.service.Services;
046import org.apache.oozie.util.XLog;
047
048/**
049 * Class to send JMS notifications related to job events.
050 *
051 */
052public class JMSJobEventListener extends JobEventListener {
053    private JMSAccessorService jmsService = Services.get().get(JMSAccessorService.class);
054    private JMSTopicService jmsTopicService = Services.get().get(JMSTopicService.class);
055    private JMSConnectionInfo connInfo;
056    public static final String JMS_CONNECTION_PROPERTIES = "oozie.jms.producer.connection.properties";
057    public static final String JMS_SESSION_OPTS = "oozie.jms.producer.session.opts";
058    public static final String JMS_DELIVERY_MODE = "oozie.jms.delivery.mode";
059    public static final String JMS_EXPIRATION_DATE = "oozie.jms.expiration.date";
060    private int jmsSessionOpts;
061    private int jmsDeliveryMode;
062    private int jmsExpirationDate;
063    private ConnectionContext jmsContext;
064    private static XLog LOG;
065
066    @Override
067    public void init(Configuration conf) {
068        LOG = XLog.getLog(getClass());
069        String jmsProps = ConfigurationService.get(conf, JMS_CONNECTION_PROPERTIES);
070        LOG.info("JMS producer connection properties [{0}]", jmsProps);
071        connInfo = new JMSConnectionInfo(jmsProps);
072        jmsSessionOpts = conf.getInt(JMS_SESSION_OPTS, Session.AUTO_ACKNOWLEDGE);
073        jmsDeliveryMode = conf.getInt(JMS_DELIVERY_MODE, DeliveryMode.PERSISTENT);
074        jmsExpirationDate = conf.getInt(JMS_EXPIRATION_DATE, 0);
075
076    }
077
078    protected void sendMessage(Map<String, String> messageProperties, String messageBody, String topicName,
079            String messageFormat) {
080        jmsContext = jmsService.createProducerConnectionContext(connInfo);
081        if (jmsContext != null) {
082            try {
083                Session session = jmsContext.createThreadLocalSession(jmsSessionOpts);
084                TextMessage textMessage = session.createTextMessage(messageBody);
085                for (Map.Entry<String, String> property : messageProperties.entrySet()) {
086                    textMessage.setStringProperty(property.getKey(), property.getValue());
087                }
088                textMessage.setStringProperty(JMSHeaderConstants.MESSAGE_FORMAT, messageFormat);
089                LOG.trace("Event related JMS text body [{0}]", textMessage.getText());
090                LOG.trace("Event related JMS entire message [{0}]", textMessage.toString());
091                MessageProducer producer = jmsContext.createProducer(session, topicName);
092                producer.setDeliveryMode(jmsDeliveryMode);
093                producer.setTimeToLive(jmsExpirationDate);
094                producer.send(textMessage);
095                producer.close();
096            }
097            catch (JMSException jmse) {
098                LOG.error("Exception happened while sending event related jms message", jmse);
099            }
100        }
101
102    }
103
104    @Override
105    public void onWorkflowJobEvent(WorkflowJobEvent event) {
106        WorkflowJobMessage wfJobMessage = MessageFactory.createWorkflowJobMessage(event);
107        serializeJMSMessage(wfJobMessage, getTopic(event));
108
109    }
110
111    @Override
112    public void onCoordinatorActionEvent(CoordinatorActionEvent event) {
113        CoordinatorActionMessage coordActionMessage = MessageFactory.createCoordinatorActionMessage(event);
114        serializeJMSMessage(coordActionMessage, getTopic(event));
115    }
116
117    private void serializeJMSMessage(JobMessage jobMessage, String topicName) {
118        MessageSerializer serializer = MessageFactory.getMessageSerializer();
119        String messageBody = serializer.getSerializedObject(jobMessage);
120        sendMessage(jobMessage.getMessageProperties(), messageBody, topicName, serializer.getMessageFormat());
121    }
122
123    protected String getTopic(WorkflowJobEvent event) {
124        if (jmsTopicService != null) {
125            return jmsTopicService.getTopic(event.getAppType(), event.getUser(), event.getId(), event.getParentId());
126        }
127        else {
128            throw new RuntimeException("JMSTopicService is not initialized");
129        }
130    }
131
132    protected String getTopic(CoordinatorActionEvent event) {
133        if (jmsTopicService != null) {
134            return jmsTopicService.getTopic(event.getAppType(), event.getUser(), event.getId(), event.getParentId());
135        }
136        else {
137            throw new RuntimeException("JMSTopicService is not initialized");
138        }
139    }
140
141    @Override
142    public void onWorkflowActionEvent(WorkflowActionEvent wae) {
143    }
144
145    @Override
146    public void onCoordinatorJobEvent(CoordinatorJobEvent wje) {
147    }
148
149    @Override
150    public void onBundleJobEvent(BundleJobEvent wje) {
151    }
152
153    @Override
154    public void destroy() {
155}
156
157}