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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 | +} | |