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| 1 | /* | ||
| 2 | * Copyright (c) 1999, 2004, 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.event; | ||
| 27 | |||
| 28 | import com.sun.jdi.*; | ||
| 29 | import com.sun.jdi.event.*; | ||
| 30 | import com.sun.jdi.request.*; | ||
| 31 | |||
| 32 | import java.util.*; | ||
| 33 | |||
| 34 | public abstract class AbstractEventSet extends EventObject implements EventSet { | ||
| 35 | |||
| 36 | private static final long serialVersionUID = 2772717574222076977L; | ||
| 37 | private final EventSet jdiEventSet; | ||
| 38 | final Event oneEvent; | ||
| 39 | |||
| 40 | /** | ||
| 41 | */ | ||
| 42 | AbstractEventSet(EventSet jdiEventSet) { | ||
| 43 | super(jdiEventSet.virtualMachine()); | ||
| 44 | this.jdiEventSet = jdiEventSet; | ||
| 45 | this.oneEvent = eventIterator().nextEvent(); | ||
| 46 | } | ||
| 47 | |||
| 48 | public static AbstractEventSet toSpecificEventSet(EventSet jdiEventSet) { | ||
| 49 | Event evt = jdiEventSet.eventIterator().nextEvent(); | ||
| 50 | if (evt instanceof LocatableEvent) { | ||
| 51 | if (evt instanceof ExceptionEvent) { | ||
| 52 | return new ExceptionEventSet(jdiEventSet); | ||
| 53 | } else if (evt instanceof WatchpointEvent) { | ||
| 54 | if (evt instanceof AccessWatchpointEvent) { | ||
| 55 | return new AccessWatchpointEventSet(jdiEventSet); | ||
| 56 | } else { | ||
| 57 | return new ModificationWatchpointEventSet(jdiEventSet); | ||
| 58 | } | ||
| 59 | } else { | ||
| 60 | return new LocationTriggerEventSet(jdiEventSet); | ||
| 61 | } | ||
| 62 | } else if (evt instanceof ClassPrepareEvent) { | ||
| 63 | return new ClassPrepareEventSet(jdiEventSet); | ||
| 64 | } else if (evt instanceof ClassUnloadEvent) { | ||
| 65 | return new ClassUnloadEventSet(jdiEventSet); | ||
| 66 | } else if (evt instanceof ThreadDeathEvent) { | ||
| 67 | return new ThreadDeathEventSet(jdiEventSet); | ||
| 68 | } else if (evt instanceof ThreadStartEvent) { | ||
| 69 | return new ThreadStartEventSet(jdiEventSet); | ||
| 70 | } else if (evt instanceof VMDeathEvent) { | ||
| 71 | return new VMDeathEventSet(jdiEventSet); | ||
| 72 | } else if (evt instanceof VMDisconnectEvent) { | ||
| 73 | return new VMDisconnectEventSet(jdiEventSet); | ||
| 74 | } else if (evt instanceof VMStartEvent) { | ||
| 75 | return new VMStartEventSet(jdiEventSet); | ||
| 76 | } else { | ||
| 77 | throw new IllegalArgumentException("Unknown event " + evt); | ||
| 78 | } | ||
| 79 | } | ||
| 80 | |||
| 81 | public abstract void notify(JDIListener listener); | ||
| 82 | |||
| 83 | // Implement Mirror | ||
| 84 | |||
| 85 | @Override | ||
| 86 | public VirtualMachine virtualMachine() { | ||
| 87 | return jdiEventSet.virtualMachine(); | ||
| 88 | } | ||
| 89 | |||
| 90 | public VirtualMachine getVirtualMachine() { | ||
| 91 | return jdiEventSet.virtualMachine(); | ||
| 92 | } | ||
| 93 | |||
| 94 | // Implement EventSet | ||
| 95 | |||
| 96 | /** | ||
| 97 | * Returns the policy used to suspend threads in the target VM | ||
| 98 | * for this event set. This policy is selected from the suspend | ||
| 99 | * policies for each event's request. The one that suspends the | ||
| 100 | * most threads is chosen when the event occurs in the target VM | ||
| 101 | * and that policy is returned here. See | ||
| 102 | * com.sun.jdi.request.EventRequest for the possible policy values. | ||
| 103 | * | ||
| 104 | * @return the integer suspendPolicy | ||
| 105 | */ | ||
| 106 | public int getSuspendPolicy() { | ||
| 107 | return jdiEventSet.suspendPolicy(); | ||
| 108 | } | ||
| 109 | |||
| 110 | @Override | ||
| 111 | public void resume() { | ||
| 112 | jdiEventSet.resume(); | ||
| 113 | } | ||
| 114 | |||
| 115 | @Override | ||
| 116 | public int suspendPolicy() { | ||
| 117 | return jdiEventSet.suspendPolicy(); | ||
| 118 | } | ||
| 119 | |||
| 120 | public boolean suspendedAll() { | ||
| 121 | return jdiEventSet.suspendPolicy() == EventRequest.SUSPEND_ALL; | ||
| 122 | } | ||
| 123 | |||
| 124 | public boolean suspendedEventThread() { | ||
| 125 | return jdiEventSet.suspendPolicy() == EventRequest.SUSPEND_EVENT_THREAD; | ||
| 126 | } | ||
| 127 | |||
| 128 | public boolean suspendedNone() { | ||
| 129 | return jdiEventSet.suspendPolicy() == EventRequest.SUSPEND_NONE; | ||
| 130 | } | ||
| 131 | |||
| 132 | /** | ||
| 133 | * Return an iterator specific to {@link Event} objects. | ||
| 134 | */ | ||
| 135 | @Override | ||
| 136 | public EventIterator eventIterator() { | ||
| 137 | return jdiEventSet.eventIterator(); | ||
| 138 | } | ||
| 139 | |||
| 140 | |||
| 141 | // Implement java.util.Set (by pass through) | ||
| 142 | |||
| 143 | /** | ||
| 144 | * Returns the number of elements in this set (its cardinality). If this | ||
| 145 | * set contains more than <tt>Integer.MAX_VALUE</tt> elements, returns | ||
| 146 | * <tt>Integer.MAX_VALUE</tt>. | ||
| 147 | * | ||
| 148 | * @return the number of elements in this set (its cardinality). | ||
| 149 | */ | ||
| 150 | @Override | ||
| 151 | public int size() { | ||
| 152 | return jdiEventSet.size(); | ||
| 153 | } | ||
| 154 | |||
| 155 | /** | ||
| 156 | * Returns <tt>true</tt> if this set contains no elements. | ||
| 157 | * | ||
| 158 | * @return <tt>true</tt> if this set contains no elements. | ||
| 159 | */ | ||
| 160 | @Override | ||
| 161 | public boolean isEmpty() { | ||
| 162 | return jdiEventSet.isEmpty(); | ||
| 163 | } | ||
| 164 | |||
| 165 | /** | ||
| 166 | * Returns <tt>true</tt> if this set contains the specified element. More | ||
| 167 | * formally, returns <tt>true</tt> if and only if this set contains an | ||
| 168 | * element <code>e</code> such that <code>(o==null ? e==null : | ||
| 169 | * o.equals(e))</code>. | ||
| 170 | * | ||
| 171 | * @return <tt>true</tt> if this set contains the specified element. | ||
| 172 | */ | ||
| 173 | @Override | ||
| 174 | public boolean contains(Object o) { | ||
| 175 | return jdiEventSet.contains(o); | ||
| 176 | } | ||
| 177 | |||
| 178 | /** | ||
| 179 | * Returns an iterator over the elements in this set. The elements are | ||
| 180 | * returned in no particular order (unless this set is an instance of some | ||
| 181 | * class that provides a guarantee). | ||
| 182 | * | ||
| 183 | * @return an iterator over the elements in this set. | ||
| 184 | */ | ||
| 185 | @Override | ||
| 186 | public Iterator<Event> iterator() { | ||
| 187 | return jdiEventSet.iterator(); | ||
| 188 | } | ||
| 189 | |||
| 190 | /** | ||
| 191 | * Returns an array containing all of the elements in this set. | ||
| 192 | * Obeys the general contract of the <tt>Collection.toArray</tt> method. | ||
| 193 | * | ||
| 194 | * @return an array containing all of the elements in this set. | ||
| 195 | */ | ||
| 196 | @Override | ||
| 197 | public Object[] toArray() { | ||
| 198 | return jdiEventSet.toArray(); | ||
| 199 | } | ||
| 200 | |||
| 201 | /** | ||
| 202 | * Returns an array containing all of the elements in this set whose | ||
| 203 | * runtime type is that of the specified array. Obeys the general | ||
| 204 | * contract of the <tt>Collection.toArray(Object[])</tt> method. | ||
| 205 | * | ||
| 206 | * @param a the array into which the elements of this set are to | ||
| 207 | * be stored, if it is big enough { | ||
| 208 | return jdiEventSet.XXX(); | ||
| 209 | } otherwise, a new array of the | ||
| 210 | * same runtime type is allocated for this purpose. | ||
| 211 | * @return an array containing the elements of this set. | ||
| 212 | * @throws ArrayStoreException the runtime type of a is not a supertype | ||
| 213 | * of the runtime type of every element in this set. | ||
| 214 | */ | ||
| 215 | @Override | ||
| 216 | public <T> T[] toArray(T a[]) { | ||
| 217 | return jdiEventSet.toArray(a); | ||
| 218 | } | ||
| 219 | |||
| 220 | // Bulk Operations | ||
| 221 | |||
| 222 | /** | ||
| 223 | * Returns <tt>true</tt> if this set contains all of the elements of the | ||
| 224 | * specified collection. If the specified collection is also a set, this | ||
| 225 | * method returns <tt>true</tt> if it is a <i>subset</i> of this set. | ||
| 226 | * | ||
| 227 | * @param c collection to be checked for containment in this set. | ||
| 228 | * @return <tt>true</tt> if this set contains all of the elements of the | ||
| 229 | * specified collection. | ||
| 230 | */ | ||
| 231 | @Override | ||
| 232 | public boolean containsAll(Collection<?> c) { | ||
| 233 | return jdiEventSet.containsAll(c); | ||
| 234 | } | ||
| 235 | |||
| 236 | |||
| 237 | // Make the rest of Set unmodifiable | ||
| 238 | |||
| 239 | @Override | ||
| 240 | public boolean add(Event e){ | ||
| 241 | throw new UnsupportedOperationException(); | ||
| 242 | } | ||
| 243 | @Override | ||
| 244 | public boolean remove(Object o) { | ||
| 245 | throw new UnsupportedOperationException(); | ||
| 246 | } | ||
| 247 | @Override | ||
| 248 | public boolean addAll(Collection<? extends Event> coll) { | ||
| 249 | throw new UnsupportedOperationException(); | ||
| 250 | } | ||
| 251 | @Override | ||
| 252 | public boolean removeAll(Collection<?> coll) { | ||
| 253 | throw new UnsupportedOperationException(); | ||
| 254 | } | ||
| 255 | @Override | ||
| 256 | public boolean retainAll(Collection<?> coll) { | ||
| 257 | throw new UnsupportedOperationException(); | ||
| 258 | } | ||
| 259 | @Override | ||
| 260 | public void clear() { | ||
| 261 | throw new UnsupportedOperationException(); | ||
| 262 | } | ||
| 263 | } | ||