J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-1999 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package com.sun.tools.jdi; |
| 27 | |
| 28 | import com.sun.jdi.*; |
| 29 | import java.util.Collection; |
| 30 | import java.util.Iterator; |
| 31 | |
| 32 | abstract class MirrorImpl extends Object implements Mirror { |
| 33 | |
| 34 | protected VirtualMachineImpl vm; |
| 35 | |
| 36 | MirrorImpl(VirtualMachine aVm) { |
| 37 | super(); |
| 38 | |
| 39 | // Yes, its a bit of a hack. But by doing it this |
| 40 | // way, this is the only place we have to change |
| 41 | // typing to substitute a new impl. |
| 42 | vm = (VirtualMachineImpl)aVm; |
| 43 | } |
| 44 | |
| 45 | public VirtualMachine virtualMachine() { |
| 46 | return vm; |
| 47 | } |
| 48 | |
| 49 | public boolean equals(Object obj) { |
| 50 | if ((obj != null) && (obj instanceof Mirror)) { |
| 51 | Mirror other = (Mirror)obj; |
| 52 | return vm.equals(other.virtualMachine()); |
| 53 | } else { |
| 54 | return false; |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | public int hashCode() { |
| 59 | return vm.hashCode(); |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Throw NullPointerException on null mirror. |
| 64 | * Throw VMMismatchException on wrong VM. |
| 65 | */ |
| 66 | void validateMirror(Mirror mirror) { |
| 67 | if (!vm.equals(mirror.virtualMachine())) { |
| 68 | throw new VMMismatchException(mirror.toString()); |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * Allow null mirror. |
| 74 | * Throw VMMismatchException on wrong VM. |
| 75 | */ |
| 76 | void validateMirrorOrNull(Mirror mirror) { |
| 77 | if ((mirror != null) && !vm.equals(mirror.virtualMachine())) { |
| 78 | throw new VMMismatchException(mirror.toString()); |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Throw NullPointerException on null mirrors. |
| 84 | * Throw VMMismatchException on wrong VM. |
| 85 | */ |
| 86 | void validateMirrors(Collection mirrors) { |
| 87 | Iterator iter = mirrors.iterator(); |
| 88 | while (iter.hasNext()) { |
| 89 | MirrorImpl mirror = (MirrorImpl)iter.next(); |
| 90 | if (!vm.equals(mirror.vm)) { |
| 91 | throw new VMMismatchException(mirror.toString()); |
| 92 | } |
| 93 | } |
| 94 | } |
| 95 | /** |
| 96 | * Allow null mirrors. |
| 97 | * Throw VMMismatchException on wrong VM. |
| 98 | */ |
| 99 | void validateMirrorsOrNulls(Collection mirrors) { |
| 100 | Iterator iter = mirrors.iterator(); |
| 101 | while (iter.hasNext()) { |
| 102 | MirrorImpl mirror = (MirrorImpl)iter.next(); |
| 103 | if ((mirror != null) && !vm.equals(mirror.vm)) { |
| 104 | throw new VMMismatchException(mirror.toString()); |
| 105 | } |
| 106 | } |
| 107 | } |
| 108 | } |