1/*
2 * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26/*
27 * This source code is provided to illustrate the usage of a given feature
28 * or technique and has been deliberately simplified. Additional steps
29 * required for a production-quality application, such as security checks,
30 * input validation and proper error handling, might not be present in
31 * this sample code.
32 */
33
34
35package com.sun.tools.example.debug.tty;
36
37import com.sun.jdi.ReferenceType;
38import com.sun.jdi.request.*;
39
40class ExceptionSpec extends EventRequestSpec {
41    private boolean notifyCaught;
42    private boolean notifyUncaught;
43
44    private ExceptionSpec(ReferenceTypeSpec refSpec) {
45        this(refSpec, true, true);
46    }
47
48    ExceptionSpec(ReferenceTypeSpec refSpec,
49                  boolean notifyCaught,
50                  boolean notifyUncaught) {
51        super(refSpec);
52        this.notifyCaught = notifyCaught;
53        this.notifyUncaught = notifyUncaught;
54    }
55
56    /**
57     * The 'refType' is known to match, return the EventRequest.
58     */
59    @Override
60    EventRequest resolveEventRequest(ReferenceType refType) {
61        EventRequestManager em = refType.virtualMachine().eventRequestManager();
62        ExceptionRequest excReq = em.createExceptionRequest(refType,
63                                                            notifyCaught,
64                                                            notifyUncaught);
65        excReq.enable();
66        return excReq;
67    }
68
69    public boolean notifyCaught() {
70        return notifyCaught;
71    }
72
73    public boolean notifyUncaught() {
74        return notifyUncaught;
75    }
76
77    @Override
78    public int hashCode() {
79        //Reference: Effective Java[tm] (Bloch, 2001), Item 8
80        int result = 17;
81        result = (37 * result) + (notifyCaught() ? 0: 1);
82        result = (37 * result) + (notifyUncaught() ? 0: 1);
83        result = (37 * result) + refSpec.hashCode();
84        return result;
85    }
86
87    @Override
88    public boolean equals(Object obj) {
89        if (obj instanceof ExceptionSpec) {
90            ExceptionSpec es = (ExceptionSpec)obj;
91
92            if (refSpec.equals(es.refSpec) &&
93                (this.notifyCaught() == es.notifyCaught()) &&
94                (this.notifyUncaught() == es.notifyUncaught())) {
95                return true;
96            }
97        }
98        return false;
99    }
100
101    @Override
102    public String toString() {
103        String s;
104        if (notifyCaught && !notifyUncaught) {
105            s = MessageOutput.format("exceptionSpec caught",
106                                     refSpec.toString());
107        } else if (notifyUncaught && !notifyCaught) {
108            s = MessageOutput.format("exceptionSpec uncaught",
109                                     refSpec.toString());
110        } else {
111            s = MessageOutput.format("exceptionSpec all",
112                                     refSpec.toString());
113        }
114        return s;
115    }
116}
117