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