Coverage Report - org.mule.transport.jms.redelivery.CountingRedeliveryHandlerFactory
 
Classes in this File Line Coverage Branch Coverage Complexity
CountingRedeliveryHandlerFactory
0%
0/11
0%
0/4
0
 
 1  
 /*
 2  
  * $Id: CountingRedeliveryHandlerFactory.java 20501 2010-12-08 00:52:19Z 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.redelivery;
 12  
 
 13  
 
 14  
 import java.util.concurrent.atomic.AtomicReference;
 15  
 
 16  
 /**
 17  
  * @see CountingRedeliveryHandler
 18  
  */
 19  0
 public class CountingRedeliveryHandlerFactory implements RedeliveryHandlerFactory
 20  
 {
 21  
 
 22  0
     protected AtomicReference<RedeliveryHandler> handler = new AtomicReference<RedeliveryHandler>(null);
 23  
 
 24  
     public RedeliveryHandler create()
 25  
     {
 26  
         RedeliveryHandler result;
 27  
 
 28  
         // initialize, accounting for concurrency
 29  0
         if (handler.get() == null)
 30  
         {
 31  0
             final CountingRedeliveryHandler newInstance = new CountingRedeliveryHandler();
 32  0
             boolean ok = handler.compareAndSet(null, newInstance);
 33  0
             if (!ok)
 34  
             {
 35  
                 // someone was faster to initialize it, use this ref instead
 36  0
                 result = handler.get();
 37  
             }
 38  
             else
 39  
             {
 40  0
                 result = newInstance;
 41  
             }
 42  0
         }
 43  
         else
 44  
         {
 45  
             // just re-use existing stateful handler
 46  0
             result = handler.get();
 47  
         }
 48  
 
 49  0
         return result;
 50  
     }
 51  
 
 52  
 }
 53  
 
 54