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Java > Open Source Codes > org > aspectj > debugger > request > ThreadNeedingRequest


1 /* -*- Mode: JDE; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2  *
3  * This file is part of the debugger and core tools for the AspectJ(tm)
4  * programming language; see http://aspectj.org
5  *
6  * The contents of this file are subject to the Mozilla Public License
7  * Version 1.1 (the "License"); you may not use this file except in
8  * compliance with the License. You may obtain a copy of the License at
9  * either http://www.mozilla.org/MPL/ or http://aspectj.org/MPL/.
10  *
11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the
14  * License.
15  *
16  * The Original Code is AspectJ.
17  *
18  * The Initial Developer of the Original Code is Xerox Corporation. Portions
19  * created by Xerox Corporation are Copyright (C) 1999-2002 Xerox Corporation.
20  * All Rights Reserved.
21  */
22
23 package org.aspectj.debugger.request;
24
25 import org.aspectj.debugger.base.*;
26
27 import com.sun.jdi.*;
28 import java.util.*;
29
30 /**
31  * ThreadNeedingRequest.java
32  *
33  *
34  * Created: Thu Aug 24 17:00:41 2000
35  *
36  * @author <a HREF="mailto:palm@parc.xerox.com"Jeffrey Palm</a>
37  */
38
39 public abstract class ThreadNeedingRequest extends ThreadsNeedingRequest {
40
41     protected String JavaDoc threadName;
42     
43     public ThreadNeedingRequest (Debugger debugger, String JavaDoc threadName) {
44         super(debugger, new SingletonArrayList(threadName));
45         this.threadName = threadName;
46     }
47
48     protected ThreadReference getThread() throws NoVMException, DebuggerException {
49         if (threadName == null || threadName.length() == 0) {
50             return debugger.getDefaultThread();
51         }
52         try {
53             List threads = getThreads();
54             if (threads != null) {
55                 if (threads.size() == 0) {
56                     return debugger.getDefaultThread();
57                 } else {
58                     return (ThreadReference) threads.get(0);
59                 }
60             }
61         } catch (ThreadsNotFoundException tnfe) {
62         }
63         throw new ThreadNotFoundException(threadName);
64     }
65
66     static class SingletonArrayList extends ArrayList {
67         public SingletonArrayList(Object JavaDoc o) {
68             super();
69             add(o);
70         }
71     }
72 }
73
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