Coverage Report - org.mule.transport.jms.redelivery.CountingRedeliveryHandler
 
Classes in this File Line Coverage Branch Coverage Complexity
CountingRedeliveryHandler
0%
0/35
0%
0/26
0
 
 1  
 /*
 2  
  * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 3  
  * The software in this package is published under the terms of the CPAL v1.0
 4  
  * license, a copy of which has been included with this distribution in the
 5  
  * LICENSE.txt file.
 6  
  */
 7  
 package org.mule.transport.jms.redelivery;
 8  
 
 9  
 import org.mule.api.MuleException;
 10  
 import org.mule.api.MuleMessage;
 11  
 import org.mule.api.construct.FlowConstruct;
 12  
 import org.mule.api.endpoint.ImmutableEndpoint;
 13  
 import org.mule.transport.jms.JmsConnector;
 14  
 
 15  
 import java.util.Collections;
 16  
 import java.util.Map;
 17  
 
 18  
 import javax.jms.JMSException;
 19  
 import javax.jms.Message;
 20  
 
 21  
 import org.apache.commons.collections.map.LRUMap;
 22  
 import org.apache.commons.logging.Log;
 23  
 import org.apache.commons.logging.LogFactory;
 24  
 
 25  
 /**
 26  
  * This redelivery handler will keep counting the redelivery attempts for each message redelivered. Used for
 27  
  * providers not implementing the {@code JMSXDeliveryCount} property support.
 28  
  */
 29  
 public class CountingRedeliveryHandler extends AbstractRedeliveryHandler
 30  
 {
 31  
     /**
 32  
      * logger used by this class
 33  
      */
 34  0
     protected static final Log logger = LogFactory.getLog(CountingRedeliveryHandler.class);
 35  
 
 36  0
     private Map<String, Integer> messages = null;
 37  
 
 38  
     @SuppressWarnings("unchecked")
 39  
     public CountingRedeliveryHandler()
 40  
     {
 41  0
         super();
 42  0
         messages = Collections.synchronizedMap(new LRUMap(256));
 43  0
     }
 44  
 
 45  
     /**
 46  
      * process the redelivered message. If the Jms receiver should process the
 47  
      * message, it should be returned. Otherwise the connector should throw a
 48  
      * <code>MessageRedeliveredException</code> to indicate that the message should
 49  
      * be handled by the connector Exception Handler.
 50  
      * 
 51  
      */
 52  
     @Override
 53  
     public void handleRedelivery(Message message, ImmutableEndpoint endpoint, FlowConstruct flow) throws JMSException, MuleException
 54  
     {
 55  0
         final int connectorRedelivery = connector.getMaxRedelivery();
 56  0
         if (connectorRedelivery == JmsConnector.REDELIVERY_IGNORE || connectorRedelivery < 0 ) // just in case, for manual setting)
 57  
         {
 58  0
             if (logger.isDebugEnabled())
 59  
             {
 60  0
                 logger.debug("We were asked to ignore the redelivery count, nothing to do here.");
 61  
             }
 62  0
             return;
 63  
         }
 64  
 
 65  0
         String id = message.getJMSMessageID();
 66  
 
 67  0
         if (id == null)
 68  
         {
 69  0
             if (logger.isDebugEnabled())
 70  
             {
 71  0
                 logger.debug("Message doesn't have a JMSMessageID set, Mule can't handle redelivery for it. " + message);
 72  
             }
 73  0
             return;
 74  
         }
 75  
 
 76  0
         Integer redeliveryCount = messages.remove(id);
 77  0
         if (redeliveryCount != null)
 78  
         {
 79  0
             redeliveryCount += 1; // inc the count
 80  
         }
 81  
 
 82  0
         if (redeliveryCount == null)
 83  
         {
 84  0
             if (logger.isDebugEnabled())
 85  
             {
 86  0
                 logger.debug("Message with id: " + id + " has been redelivered for the first time");
 87  
             }
 88  0
             messages.put(id, 1);
 89  
         }
 90  0
         else if (redeliveryCount == 1)
 91  
         {
 92  0
             if (logger.isDebugEnabled())
 93  
             {
 94  0
                 logger.debug("Message with id: " + id + " has been redelivered for the first time");
 95  
             }
 96  
 
 97  0
             if (connectorRedelivery == JmsConnector.REDELIVERY_FAIL_ON_FIRST)
 98  
             {
 99  0
                 MuleMessage msg = createMuleMessage(message);
 100  0
                 throw new MessageRedeliveredException(id, redeliveryCount, connectorRedelivery, endpoint, flow, msg);
 101  
             }
 102  
         }
 103  0
         else if (redeliveryCount > connectorRedelivery)
 104  
         {
 105  0
             MuleMessage msg = createMuleMessage(message);
 106  0
             throw new MessageRedeliveredException(id, redeliveryCount, connectorRedelivery, endpoint, flow, msg);
 107  
         }
 108  
         else
 109  
         {
 110  0
             messages.put(id, redeliveryCount);
 111  0
             if (logger.isDebugEnabled())
 112  
             {
 113  0
                 logger.debug("Message with id: " + id + " has been redelivered " + redeliveryCount + " times");
 114  
             }
 115  
         }
 116  0
     }
 117  
 }