Coverage Report - org.mule.util.concurrent.WaitPolicy
 
Classes in this File Line Coverage Branch Coverage Complexity
WaitPolicy
0%
0/16
0%
0/6
0
 
 1  
 /*
 2  
  * $Id: WaitPolicy.java 19239 2010-08-27 09:36:39Z dirk.olmes $
 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.util.concurrent;
 12  
 
 13  
 import edu.emory.mathcs.backport.java.util.concurrent.RejectedExecutionException;
 14  
 import edu.emory.mathcs.backport.java.util.concurrent.RejectedExecutionHandler;
 15  
 import edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor;
 16  
 import edu.emory.mathcs.backport.java.util.concurrent.TimeUnit;
 17  
 
 18  
 /**
 19  
  * A handler for unexecutable tasks that waits until the task can be submitted for
 20  
  * execution or times out. Generously snipped from the jsr166 repository at: <a
 21  
  * href="http://gee.cs.oswego.edu/cgi-bin/viewcvs.cgi/jsr166/src/main/java/util/concurrent/ThreadPoolExecutor.java"></a>.
 22  
  */
 23  
 // @Immutable
 24  
 public class WaitPolicy implements RejectedExecutionHandler
 25  
 {
 26  
     private final long time;
 27  
     private final TimeUnit timeUnit;
 28  
 
 29  
     /**
 30  
      * Constructs a <tt>WaitPolicy</tt> which waits (almost) forever.
 31  
      */
 32  
     public WaitPolicy()
 33  
     {
 34  
         // effectively waits forever
 35  0
         this(Long.MAX_VALUE, TimeUnit.SECONDS);
 36  0
     }
 37  
 
 38  
     /**
 39  
      * Constructs a <tt>WaitPolicy</tt> with timeout. A negative <code>time</code>
 40  
      * value is interpreted as <code>Long.MAX_VALUE</code>.
 41  
      */
 42  
     public WaitPolicy(long time, TimeUnit timeUnit)
 43  
     {
 44  0
         super();
 45  0
         this.time = (time < 0 ? Long.MAX_VALUE : time);
 46  0
         this.timeUnit = timeUnit;
 47  0
     }
 48  
 
 49  
     @SuppressWarnings("boxing")
 50  
     public void rejectedExecution(Runnable r, ThreadPoolExecutor e)
 51  
     {
 52  
         try
 53  
         {
 54  0
             if (e.isShutdown())
 55  
             {
 56  0
                 throw new RejectedExecutionException("ThreadPoolExecutor is already shut down");
 57  
             }
 58  0
             else if (!e.getQueue().offer(r, time, timeUnit))
 59  
             {
 60  0
                 String message = String.format("ThreadPoolExecutor did not accept within %1d %2s", 
 61  
                     time, timeUnit);
 62  0
                 throw new RejectedExecutionException(message);
 63  
             }
 64  
         }
 65  0
         catch (InterruptedException ie)
 66  
         {
 67  0
             Thread.currentThread().interrupt();
 68  0
             throw new RejectedExecutionException(ie);
 69  0
         }
 70  0
     }
 71  
 
 72  
 }