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| 1 | /* | ||
| 2 | * Copyright (c) 1998, 2008, 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 | package com.sun.tools.example.debug.tty; | ||
| 27 | |||
| 28 | import com.sun.jdi.request.EventRequest; | ||
| 29 | import com.sun.jdi.event.ClassPrepareEvent; | ||
| 30 | |||
| 31 | import java.util.ArrayList; | ||
| 32 | import java.util.Collections; | ||
| 33 | import java.util.List; | ||
| 34 | |||
| 35 | class EventRequestSpecList { | ||
| 36 | |||
| 37 | private static final int statusResolved = 1; | ||
| 38 | private static final int statusUnresolved = 2; | ||
| 39 | private static final int statusError = 3; | ||
| 40 | |||
| 41 | // all specs | ||
| 42 | private List<EventRequestSpec> eventRequestSpecs = Collections.synchronizedList( | ||
| 43 | new ArrayList<EventRequestSpec>()); | ||
| 44 | |||
| 45 | EventRequestSpecList() { | ||
| 46 | } | ||
| 47 | |||
| 48 | /** | ||
| 49 | * Resolve all deferred eventRequests waiting for 'refType'. | ||
| 50 | * @return true if it completes successfully, false on error. | ||
| 51 | */ | ||
| 52 | boolean resolve(ClassPrepareEvent event) { | ||
| 53 | boolean failure = false; | ||
| 54 | synchronized(eventRequestSpecs) { | ||
| 55 | for (EventRequestSpec spec : eventRequestSpecs) { | ||
| 56 | if (!spec.isResolved()) { | ||
| 57 | try { | ||
| 58 | EventRequest eventRequest = spec.resolve(event); | ||
| 59 | if (eventRequest != null) { | ||
| 60 | MessageOutput.println("Set deferred", spec.toString()); | ||
| 61 | } | ||
| 62 | } catch (Exception e) { | ||
| 63 | MessageOutput.println("Unable to set deferred", | ||
| 64 | new Object [] {spec.toString(), | ||
| 65 | spec.errorMessageFor(e)}); | ||
| 66 | failure = true; | ||
| 67 | } | ||
| 68 | } | ||
| 69 | } | ||
| 70 | } | ||
| 71 | return !failure; | ||
| 72 | } | ||
| 73 | |||
| 74 | void resolveAll() { | ||
| 75 | for (EventRequestSpec spec : eventRequestSpecs) { | ||
| 76 | try { | ||
| 77 | EventRequest eventRequest = spec.resolveEagerly(); | ||
| 78 | if (eventRequest != null) { | ||
| 79 | MessageOutput.println("Set deferred", spec.toString()); | ||
| 80 | } | ||
| 81 | } catch (Exception e) { | ||
| 82 | } | ||
| 83 | } | ||
| 84 | } | ||
| 85 | |||
| 86 | boolean addEagerlyResolve(EventRequestSpec spec) { | ||
| 87 | try { | ||
| 88 | eventRequestSpecs.add(spec); | ||
| 89 | EventRequest eventRequest = spec.resolveEagerly(); | ||
| 90 | if (eventRequest != null) { | ||
| 91 | MessageOutput.println("Set", spec.toString()); | ||
| 92 | } | ||
| 93 | return true; | ||
| 94 | } catch (Exception exc) { | ||
| 95 | MessageOutput.println("Unable to set", | ||
| 96 | new Object [] {spec.toString(), | ||
| 97 | spec.errorMessageFor(exc)}); | ||
| 98 | return false; | ||
| 99 | } | ||
| 100 | } | ||
| 101 | |||
| 102 | BreakpointSpec createBreakpoint(String classPattern, int line) | ||
| 103 | throws ClassNotFoundException { | ||
| 104 | ReferenceTypeSpec refSpec = | ||
| 105 | new PatternReferenceTypeSpec(classPattern); | ||
| 106 | return new BreakpointSpec(refSpec, line); | ||
| 107 | } | ||
| 108 | |||
| 109 | BreakpointSpec createBreakpoint(String classPattern, | ||
| 110 | String methodId, | ||
| 111 | List<String> methodArgs) | ||
| 112 | throws MalformedMemberNameException, | ||
| 113 | ClassNotFoundException { | ||
| 114 | ReferenceTypeSpec refSpec = | ||
| 115 | new PatternReferenceTypeSpec(classPattern); | ||
| 116 | return new BreakpointSpec(refSpec, methodId, methodArgs); | ||
| 117 | } | ||
| 118 | |||
| 119 | EventRequestSpec createExceptionCatch(String classPattern, | ||
| 120 | boolean notifyCaught, | ||
| 121 | boolean notifyUncaught) | ||
| 122 | throws ClassNotFoundException { | ||
| 123 | ReferenceTypeSpec refSpec = | ||
| 124 | new PatternReferenceTypeSpec(classPattern); | ||
| 125 | return new ExceptionSpec(refSpec, notifyCaught, notifyUncaught); | ||
| 126 | } | ||
| 127 | |||
| 128 | WatchpointSpec createAccessWatchpoint(String classPattern, | ||
| 129 | String fieldId) | ||
| 130 | throws MalformedMemberNameException, | ||
| 131 | ClassNotFoundException { | ||
| 132 | ReferenceTypeSpec refSpec = | ||
| 133 | new PatternReferenceTypeSpec(classPattern); | ||
| 134 | return new AccessWatchpointSpec(refSpec, fieldId); | ||
| 135 | } | ||
| 136 | |||
| 137 | WatchpointSpec createModificationWatchpoint(String classPattern, | ||
| 138 | String fieldId) | ||
| 139 | throws MalformedMemberNameException, | ||
| 140 | ClassNotFoundException { | ||
| 141 | ReferenceTypeSpec refSpec = | ||
| 142 | new PatternReferenceTypeSpec(classPattern); | ||
| 143 | return new ModificationWatchpointSpec(refSpec, fieldId); | ||
| 144 | } | ||
| 145 | |||
| 146 | boolean delete(EventRequestSpec proto) { | ||
| 147 | synchronized (eventRequestSpecs) { | ||
| 148 | int inx = eventRequestSpecs.indexOf(proto); | ||
| 149 | if (inx != -1) { | ||
| 150 | EventRequestSpec spec = eventRequestSpecs.get(inx); | ||
| 151 | spec.remove(); | ||
| 152 | eventRequestSpecs.remove(inx); | ||
| 153 | return true; | ||
| 154 | } else { | ||
| 155 | return false; | ||
| 156 | } | ||
| 157 | } | ||
| 158 | } | ||
| 159 | |||
| 160 | List<EventRequestSpec> eventRequestSpecs() { | ||
| 161 | // We need to make a copy to avoid synchronization problems | ||
| 162 | synchronized (eventRequestSpecs) { | ||
| 163 | return new ArrayList<EventRequestSpec>(eventRequestSpecs); | ||
| 164 | } | ||
| 165 | } | ||
| 166 | } | ||