Coverage Report - org.mule.transport.jms.TransactedSingleResourceJmsMessageReceiver
 
Classes in this File Line Coverage Branch Coverage Complexity
TransactedSingleResourceJmsMessageReceiver
0%
0/62
0%
0/20
0
TransactedSingleResourceJmsMessageReceiver$MessageReceiverWorker
0%
0/16
0%
0/2
0
TransactedSingleResourceJmsMessageReceiver$MessageReceiverWorker$1
0%
0/20
0%
0/12
0
 
 1  
 /*
 2  
  * $Id: TransactedSingleResourceJmsMessageReceiver.java 19191 2010-08-25 21:05:23Z tcarlson $
 3  
  * --------------------------------------------------------------------------------------
 4  
  * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 5  
  *
 6  
  * The software in this package is published under the terms of the CPAL v1.0
 7  
  * license, a copy of which has been included with this distribution in the
 8  
  * LICENSE.txt file.
 9  
  */
 10  
 
 11  
 package org.mule.transport.jms;
 12  
 
 13  
 import org.mule.api.MuleException;
 14  
 import org.mule.api.MuleMessage;
 15  
 import org.mule.api.construct.FlowConstruct;
 16  
 import org.mule.api.endpoint.InboundEndpoint;
 17  
 import org.mule.api.lifecycle.CreateException;
 18  
 import org.mule.api.lifecycle.StartException;
 19  
 import org.mule.api.lifecycle.StopException;
 20  
 import org.mule.api.transaction.Transaction;
 21  
 import org.mule.api.transaction.TransactionCallback;
 22  
 import org.mule.api.transport.Connector;
 23  
 import org.mule.transaction.TransactionCoordination;
 24  
 import org.mule.transaction.TransactionTemplate;
 25  
 import org.mule.transport.AbstractMessageReceiver;
 26  
 import org.mule.transport.ConnectException;
 27  
 import org.mule.transport.jms.filters.JmsSelectorFilter;
 28  
 import org.mule.util.ClassUtils;
 29  
 
 30  
 import javax.jms.Destination;
 31  
 import javax.jms.JMSException;
 32  
 import javax.jms.Message;
 33  
 import javax.jms.MessageConsumer;
 34  
 import javax.jms.MessageListener;
 35  
 import javax.jms.Session;
 36  
 import javax.jms.Topic;
 37  
 import javax.resource.spi.work.Work;
 38  
 
 39  0
 public class TransactedSingleResourceJmsMessageReceiver extends AbstractMessageReceiver
 40  
         implements MessageListener
 41  
 {
 42  
     protected JmsConnector connector;
 43  
     protected RedeliveryHandler redeliveryHandler;
 44  
     protected MessageConsumer consumer;
 45  
     protected Session session;
 46  0
     protected boolean startOnConnect = false;
 47  
 
 48  
     /** determines whether messages will be received in a transaction template */
 49  0
     protected boolean receiveMessagesInTransaction = true;
 50  
 
 51  
     /** determines whether Multiple receivers are created to improve throughput */
 52  0
     protected boolean useMultipleReceivers = true;
 53  
 
 54  
     
 55  
     public TransactedSingleResourceJmsMessageReceiver(Connector connector,
 56  
                                                       FlowConstruct flowConstruct,
 57  
                                                       InboundEndpoint endpoint) throws CreateException
 58  
     {
 59  
 
 60  0
         super(connector, flowConstruct, endpoint);
 61  
 
 62  0
         this.connector = (JmsConnector) connector;
 63  
 
 64  
         // TODO check which properties being set in the TransecteJmsMessage receiver
 65  
         // are needed...
 66  
 
 67  
         try
 68  
         {
 69  0
             redeliveryHandler = this.connector.getRedeliveryHandlerFactory().create();
 70  0
             redeliveryHandler.setConnector(this.connector);
 71  
         }
 72  0
         catch (Exception e)
 73  
         {
 74  0
             throw new CreateException(e, this);
 75  0
         }
 76  0
     }
 77  
 
 78  
     @Override
 79  
     protected void doDispose()
 80  
     {
 81  
         // template method
 82  0
     }
 83  
 
 84  
     @Override
 85  
     protected void doConnect() throws Exception
 86  
     {
 87  
         try
 88  
         {
 89  0
             JmsSupport jmsSupport = this.connector.getJmsSupport();
 90  
             // Create session if none exists
 91  0
             if (session == null)
 92  
             {
 93  0
                 session = this.connector.getSession(endpoint);
 94  
             }
 95  
 
 96  
             // Create destination
 97  0
             boolean topic = connector.getTopicResolver().isTopic(endpoint);
 98  
 
 99  0
             Destination dest = jmsSupport.createDestination(session, endpoint);
 100  
             // Extract jms selector
 101  0
             String selector = null;
 102  0
             if (endpoint.getFilter() != null && endpoint.getFilter() instanceof JmsSelectorFilter)
 103  
             {
 104  0
                 selector = ((JmsSelectorFilter) endpoint.getFilter()).getExpression();
 105  
             }
 106  0
             else if (endpoint.getProperties() != null)
 107  
             {
 108  
                 // still allow the selector to be set as a property on the endpoint
 109  
                 // to be backward compatable
 110  0
                 selector = (String) endpoint.getProperties().get(JmsConstants.JMS_SELECTOR_PROPERTY);
 111  
             }
 112  0
             String tempDurable = (String) endpoint.getProperties().get(JmsConstants.DURABLE_PROPERTY);
 113  0
             boolean durable = connector.isDurable();
 114  0
             if (tempDurable != null)
 115  
             {
 116  0
                 durable = Boolean.valueOf(tempDurable).booleanValue();
 117  
             }
 118  
 
 119  
             // Get the durable subscriber name if there is one
 120  0
             String durableName = (String) endpoint.getProperties().get(JmsConstants.DURABLE_NAME_PROPERTY);
 121  0
             if (durableName == null && durable && dest instanceof Topic)
 122  
             {
 123  0
                 durableName = "mule." + connector.getName() + "." + endpoint.getEndpointURI().getAddress();
 124  0
                 logger.debug("Jms Connector for this receiver is durable but no durable name has been specified. Defaulting to: "
 125  
                         + durableName);
 126  
             }
 127  
 
 128  
             // Create consumer
 129  0
             consumer = jmsSupport.createConsumer(session, dest, selector, connector.isNoLocal(), durableName,
 130  
                     topic, endpoint);
 131  
         }
 132  0
         catch (JMSException e)
 133  
         {
 134  0
             throw new ConnectException(e, this);
 135  0
         }
 136  0
     }
 137  
 
 138  
     @Override
 139  
     protected void doStart() throws MuleException
 140  
     {
 141  
         try
 142  
         {
 143  
             // We ned to register the listener when start is called in order to only
 144  
             // start receiving messages after start.
 145  
             // If the consumer is null it means that the connection strategy is being
 146  
             // run in a separate thread and hasn't managed to connect yet.
 147  0
             if (consumer == null)
 148  
             {
 149  0
                 startOnConnect = true;
 150  
             }
 151  
             else
 152  
             {
 153  0
                 startOnConnect = false;
 154  0
                 this.consumer.setMessageListener(this);
 155  
             }
 156  
         }
 157  0
         catch (JMSException e)
 158  
         {
 159  0
             throw new StartException(e, this);
 160  0
         }
 161  0
     }
 162  
 
 163  
     @Override
 164  
     protected void doStop() throws MuleException
 165  
     {
 166  
         try
 167  
         {
 168  0
             if (consumer != null)
 169  
             {
 170  0
                 consumer.setMessageListener(null);
 171  
             }
 172  
         }
 173  0
         catch (JMSException e)
 174  
         {
 175  0
             throw new StopException(e, this);
 176  0
         }
 177  0
     }
 178  
 
 179  
     @Override
 180  
     public void doDisconnect() throws Exception
 181  
     {
 182  0
         closeConsumer();
 183  0
     }
 184  
 
 185  
     protected void closeConsumer()
 186  
     {
 187  0
         connector.closeQuietly(consumer);
 188  0
         consumer = null;
 189  0
         connector.closeQuietly(session);
 190  0
         session = null;
 191  0
     }
 192  
 
 193  
     public void onMessage(Message message)
 194  
     {
 195  
         try
 196  
         {
 197  0
             getWorkManager().scheduleWork(new MessageReceiverWorker(message));
 198  
         }
 199  0
         catch (Exception e)
 200  
         {
 201  0
             getConnector().getMuleContext().getExceptionListener().handleException(e);
 202  0
         }
 203  0
     }
 204  
 
 205  
     protected class MessageReceiverWorker implements Work
 206  
     {
 207  
         Message message;
 208  
 
 209  
         public MessageReceiverWorker(Message message)
 210  0
         {
 211  0
             this.message = message;
 212  0
         }
 213  
 
 214  
         public void run()
 215  
         {
 216  
             try
 217  
             {
 218  0
                 TransactionTemplate<Void> tt = new TransactionTemplate<Void>(
 219  
                                                         endpoint.getTransactionConfig(),
 220  
                                                         connector.getMuleContext());
 221  
 
 222  0
                 final String encoding = endpoint.getEncoding();
 223  
 
 224  0
                 if (receiveMessagesInTransaction)
 225  
                 {
 226  0
                     TransactionCallback<Void> cb = new MessageTransactionCallback<Void>(message)
 227  0
                     {
 228  
 
 229  
                         public Void doInTransaction() throws Exception
 230  
                         {
 231  
                             // Get Transaction & Bind MuleSession
 232  0
                             Transaction tx = TransactionCoordination.getInstance().getTransaction();
 233  0
                             if (tx != null)
 234  
                             {
 235  0
                                 tx.bindResource(connector.getConnection(), session);
 236  
                             }
 237  0
                             if (tx instanceof JmsClientAcknowledgeTransaction)
 238  
                             {
 239  0
                                 tx.bindResource(message, message);
 240  
                             }
 241  
 
 242  0
                             if (logger.isDebugEnabled())
 243  
                             {
 244  0
                                 logger.debug("Message received it is of type: " +
 245  
                                         ClassUtils.getSimpleName(message.getClass()));
 246  0
                                 if (message.getJMSDestination() != null)
 247  
                                 {
 248  0
                                     logger.debug("Message received on " + message.getJMSDestination() + " ("
 249  
                                             + message.getJMSDestination().getClass().getName() + ")");
 250  
                                 }
 251  
                                 else
 252  
                                 {
 253  0
                                     logger.debug("Message received on unknown destination");
 254  
                                 }
 255  0
                                 logger.debug("Message CorrelationId is: " + message.getJMSCorrelationID());
 256  0
                                 logger.debug("Jms Message Id is: " + message.getJMSMessageID());
 257  
                             }
 258  
 
 259  0
                             if (message.getJMSRedelivered())
 260  
                             {
 261  0
                                 if (logger.isDebugEnabled())
 262  
                                 {
 263  0
                                     logger.debug("Message with correlationId: "
 264  
                                             + message.getJMSCorrelationID()
 265  
                                             + " is redelivered. handing off to Exception Handler");
 266  
                                 }
 267  0
                                 redeliveryHandler.handleRedelivery(message);
 268  
                             }
 269  
 
 270  0
                             MuleMessage messageToRoute = createMuleMessage(message, encoding);
 271  0
                             routeMessage(messageToRoute);
 272  0
                             return null;
 273  
                         }
 274  
                     };
 275  0
                     tt.execute(cb);
 276  0
                 }
 277  
                 else
 278  
                 {
 279  0
                     MuleMessage messageToRoute = createMuleMessage(message, encoding);
 280  0
                     routeMessage(messageToRoute);
 281  
                 }
 282  
             }
 283  0
             catch (Exception e)
 284  
             {
 285  0
                 getConnector().getMuleContext().getExceptionListener().handleException(e);
 286  0
             }
 287  0
         }
 288  
 
 289  
         public void release()
 290  
         {
 291  
             // Nothing to release.
 292  0
         }
 293  
     }
 294  
 }