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1   /*
2    * $Id: AbstractMessageProcessorOwner.java 20629 2010-12-10 22:21:51Z dzapata $
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  package org.mule.processor;
11  
12  import org.mule.api.MuleContext;
13  import org.mule.api.MuleException;
14  import org.mule.api.construct.FlowConstruct;
15  import org.mule.api.construct.FlowConstructAware;
16  import org.mule.api.context.MuleContextAware;
17  import org.mule.api.lifecycle.Disposable;
18  import org.mule.api.lifecycle.Initialisable;
19  import org.mule.api.lifecycle.InitialisationException;
20  import org.mule.api.lifecycle.Lifecycle;
21  import org.mule.api.lifecycle.Startable;
22  import org.mule.api.lifecycle.Stoppable;
23  import org.mule.api.processor.MessageProcessor;
24  
25  import java.util.List;
26  
27  /**
28   * An object that owns message processors and delegates startup/shoutdown events to them
29   */
30  public abstract class AbstractMessageProcessorOwner implements Lifecycle, MuleContextAware, FlowConstructAware
31  {
32      protected MuleContext muleContext;
33      protected FlowConstruct flowConstruct;
34  
35      public void setMuleContext(MuleContext context)
36      {
37          this.muleContext = context;
38      }
39  
40      public void setFlowConstruct(FlowConstruct flowConstruct)
41      {
42          this.flowConstruct = flowConstruct;
43      }
44  
45      public void initialise() throws InitialisationException
46      {
47          for (MessageProcessor processor : getOwnedMessageProcessors())
48          {
49              if (processor instanceof MuleContextAware)
50              {
51                  ((MuleContextAware) processor).setMuleContext(muleContext);
52              }
53              if (processor instanceof FlowConstructAware)
54              {
55                  ((FlowConstructAware) processor).setFlowConstruct(flowConstruct);
56              }
57              if (processor instanceof Initialisable)
58              {
59                  ((Initialisable) processor).initialise();
60              }
61          }
62      }
63  
64      public void dispose()
65      {
66          for (MessageProcessor processor : getOwnedMessageProcessors())
67          {
68  
69              if (processor instanceof Disposable)
70              {
71                  ((Disposable) processor).dispose();
72              }
73          }
74      }
75  
76  
77      public void start() throws MuleException
78      {
79  
80          for (MessageProcessor processor : getOwnedMessageProcessors())
81          {
82              if (processor instanceof Startable)
83              {
84                  ((Startable) processor).start();
85              }
86          }
87      }
88  
89  
90      public void stop() throws MuleException
91      {
92  
93          for (MessageProcessor processor : getOwnedMessageProcessors())
94          {
95              if (processor instanceof Stoppable)
96              {
97                  ((Stoppable) processor).stop();
98              }
99  
100         }
101     }
102 
103     protected abstract List<MessageProcessor> getOwnedMessageProcessors();
104 
105 }
106