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Java > Open Source Codes > org > aspectj > debugger > base > LockInformation


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.base;
24
25 import com.sun.jdi.*;
26 import java.util.*;
27
28 /**
29  * LockInformation.java
30  *
31  *
32  * Created: Fri Aug 25 16:06:47 2000
33  *
34  * @author <a HREF="mailto:palm@parc.xerox.com"Jeffrey Palm</a>
35  */
36
37 public class LockInformation {
38
39     private ObjectReference objectRef;
40     
41     public LockInformation (ObjectReference objectRef) {
42         this.objectRef = objectRef;
43     }
44
45     public ThreadReference getOwningThread() throws DebuggerException {
46         try {
47             return objectRef.owningThread();
48         } catch (UnsupportedOperationException JavaDoc uoe) {
49             throw new DebuggerException(uoe);
50         } catch (IncompatibleThreadStateException itse) {
51             throw new DebuggerException(itse);
52         }
53     }
54
55     public List getWaitingThreads() throws DebuggerException {
56         try {
57             return objectRef.waitingThreads();
58         } catch (UnsupportedOperationException JavaDoc uoe) {
59             throw new DebuggerException(uoe);
60         } catch (IncompatibleThreadStateException itse) {
61             throw new DebuggerException(itse);
62         }
63     }
64
65     public String JavaDoc toString() {
66         try {
67             String JavaDoc str = "Object: " + objectRef + Consts.newline;
68             str += "Owning thread: " + getOwningThread() + Consts.newline;
69             str += "Waiting threads: " + getWaitingThreads();
70             return str;
71         } catch (DebuggerException e) {
72         }
73         return "Thread thread has resumed.";
74     }
75 }
76
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