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


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  * FieldNeedingRequest.java
32  *
33  *
34  * Created: Fri Aug 25 16:41:56 2000
35  *
36  * @author <a HREF="mailto:palm@parc.xerox.com"Jeffrey Palm</a>
37  */
38
39 public abstract class ClassAndFieldNeedingRequestAction extends RequestAction {
40
41     protected String JavaDoc className;
42     protected String JavaDoc fieldName;
43
44     public ClassAndFieldNeedingRequestAction(Debugger debugger, String JavaDoc className, String JavaDoc fieldName) {
45         super(debugger);
46         this.className = className;
47         this.fieldName = fieldName;
48     }
49
50     protected Field getField() throws NoVMException, DebuggerException {
51         try {
52             return getReferenceType().fieldByName(fieldName);
53         } catch (ClassNotPreparedException cnpe) {
54             throw new DebuggerException(cnpe);
55         }
56     }
57
58     protected ReferenceType getReferenceType() throws NoVMException, DebuggerException {
59         List refTypes = vm().classesByName(className);
60         if (refTypes.size() == 0) {
61             throw new InvalidClassException(className);
62         } else if (refTypes.size() > 1) {
63             throw new AmbiguousClassException(className, refTypes);
64         }
65         return (ReferenceType) refTypes.get(0);
66     }
67
68     public String JavaDoc getClassName() {
69         return className;
70     }
71
72     public String JavaDoc getFieldName() {
73         return fieldName;
74     }
75
76     public boolean equals(Object JavaDoc other) {
77         if (other == null || !(other instanceof ClassAndFieldNeedingRequestAction)) {
78             return super.equals(other);
79         }
80         ClassAndFieldNeedingRequestAction ra = (ClassAndFieldNeedingRequestAction) other;
81         return (getClassName().equals(ra.getClassName())
82                 && getFieldName().equals(ra.getFieldName()));
83     }
84
85     public String JavaDoc toString() {
86         return getClassName() + "." + getFieldName();
87     }
88 }
89
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