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Java > Open Source Codes > org > jboss > aspects > asynch > FutureImplJavaUtilConcurrent


1 /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10   * the License, or (at your option) any later version.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this software; if not, write to the Free
19   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21   */
22 package org.jboss.aspects.asynch;
23
24
25 import org.jboss.aop.Dispatcher;
26 import org.jboss.util.id.GUID;
27
28 import java.lang.reflect.InvocationTargetException JavaDoc;
29 import java.util.concurrent.ExecutionException JavaDoc;
30 import java.util.concurrent.TimeUnit JavaDoc;
31
32 /**
33  * Comment
34  *
35  * @author <a HREF="mailto:bill@jboss.org">Bill Burke</a>
36  * @version $Revision: 37406 $
37  */
38 public class FutureImplJavaUtilConcurrent implements RemotableFuture
39 {
40    private java.util.concurrent.Future JavaDoc result;
41    private GUID remoteObjectID;
42
43    public FutureImplJavaUtilConcurrent(java.util.concurrent.Future JavaDoc result)
44    {
45       this.result = result;
46    }
47
48    public void setRemoteObjectID(GUID remoteObjectID)
49    {
50       this.remoteObjectID = remoteObjectID;
51    }
52
53    public void release()
54    {
55       if (remoteObjectID != null)
56       {
57          Dispatcher.singleton.unregisterTarget(remoteObjectID);
58       }
59    }
60
61    public Object JavaDoc get() throws InterruptedException JavaDoc, InvocationTargetException JavaDoc
62    {
63       try
64       {
65          Object JavaDoc rtn = result.get();
66          release();
67          return rtn;
68       }
69       catch (ExecutionException JavaDoc e)
70       {
71          release();
72          throw new InvocationTargetException JavaDoc(e.getCause());
73       }
74    }
75
76    public Object JavaDoc get(long milliseconds) throws org.jboss.aspects.asynch.TimeoutException, InterruptedException JavaDoc, InvocationTargetException JavaDoc
77    {
78       try
79       {
80          Object JavaDoc rtn = result.get(milliseconds, TimeUnit.MILLISECONDS);
81          release();
82          return rtn;
83       }
84       catch (ExecutionException JavaDoc e)
85       {
86          release();
87          throw new InvocationTargetException JavaDoc(e.getCause());
88       }
89       catch (java.util.concurrent.TimeoutException JavaDoc e)
90       {
91          throw new org.jboss.aspects.asynch.TimeoutException(e);
92       }
93    }
94
95    public boolean isDone()
96    {
97       return result.isDone();
98    }
99
100 }
101
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