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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.tck;
8   
9   import org.mule.api.MuleEvent;
10  import org.mule.api.MuleException;
11  import org.mule.api.processor.MessageProcessor;
12  import org.mule.api.source.MessageSource;
13  import org.mule.util.ObjectUtils;
14  import org.mule.util.concurrent.Latch;
15  
16  public class SensingNullMessageProcessor implements MessageProcessor
17  {
18      public MuleEvent event;
19      protected InternalMessageSource source = new InternalMessageSource();
20      private long waitTime = 0;
21      public Latch latch = new Latch();
22  
23      public MuleEvent process(MuleEvent event) throws MuleException
24      {
25          if (waitTime > 0)
26          {
27              try
28              {
29                  Thread.sleep(waitTime);
30              }
31              catch (InterruptedException e)
32              {
33                  throw new RuntimeException(e);
34              }
35          }
36          this.event = event;
37          latch.countDown();
38          if (source.listener != null)
39          {
40              return source.listener.process(event);
41          }
42          else
43          {
44              if (event.getEndpoint().getExchangePattern().hasResponse())
45              {
46                  return event;
47              }
48              else
49              {
50                  return null;
51              }
52          }
53      }
54  
55      public void clear()
56      {
57          event = null;
58      }
59  
60      public MessageSource getMessageSource()
61      {
62          return source;
63      }
64  
65      public void setWaitTime(long waitTime)
66      {
67          this.waitTime = waitTime;
68      }
69  
70      class InternalMessageSource implements MessageSource
71      {
72          MessageProcessor listener;
73  
74          public void setListener(MessageProcessor listener)
75          {
76              this.listener = listener;
77  
78          }
79  
80          @Override
81          public String toString()
82          {
83              return ObjectUtils.toString(this);
84          }
85      }
86  }