J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-2004 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 com.sun.jdi.connect.*; |
| 30 | import com.sun.jdi.connect.spi.*; |
| 31 | import java.lang.reflect.Constructor; |
| 32 | import java.lang.reflect.InvocationTargetException; |
| 33 | import java.util.List; |
| 34 | import java.util.ArrayList; |
| 35 | import java.util.Collections; |
| 36 | import java.util.Iterator; |
| 37 | import java.util.ResourceBundle; |
| 38 | import java.io.IOException; |
| 39 | |
| 40 | import java.util.ServiceLoader; |
| 41 | |
| 42 | /* Public for use by com.sun.jdi.Bootstrap */ |
| 43 | public class VirtualMachineManagerImpl implements VirtualMachineManagerService { |
| 44 | private List<Connector> connectors = new ArrayList<Connector>(); |
| 45 | private LaunchingConnector defaultConnector = null; |
| 46 | private List<VirtualMachine> targets = new ArrayList<VirtualMachine>(); |
| 47 | private final ThreadGroup mainGroupForJDI; |
| 48 | private ResourceBundle messages = null; |
| 49 | private int vmSequenceNumber = 0; |
| 50 | private static final int majorVersion = 1; |
| 51 | private static final int minorVersion = 6; |
| 52 | |
| 53 | private static final Object lock = new Object(); |
| 54 | private static VirtualMachineManagerImpl vmm; |
| 55 | |
| 56 | public static VirtualMachineManager virtualMachineManager() { |
| 57 | SecurityManager sm = System.getSecurityManager(); |
| 58 | if (sm != null) { |
| 59 | JDIPermission vmmPermission = |
| 60 | new JDIPermission("virtualMachineManager"); |
| 61 | sm.checkPermission(vmmPermission); |
| 62 | } |
| 63 | synchronized (lock) { |
| 64 | if (vmm == null) { |
| 65 | vmm = new VirtualMachineManagerImpl(); |
| 66 | } |
| 67 | } |
| 68 | return vmm; |
| 69 | } |
| 70 | |
| 71 | protected VirtualMachineManagerImpl() { |
| 72 | |
| 73 | /* |
| 74 | * Create a top-level thread group |
| 75 | */ |
| 76 | ThreadGroup top = Thread.currentThread().getThreadGroup(); |
| 77 | ThreadGroup parent = null; |
| 78 | while ((parent = top.getParent()) != null) { |
| 79 | top = parent; |
| 80 | } |
| 81 | mainGroupForJDI = new ThreadGroup(top, "JDI main"); |
| 82 | |
| 83 | /* |
| 84 | * Load the connectors |
| 85 | */ |
| 86 | ServiceLoader<Connector> connectorLoader = |
| 87 | ServiceLoader.load(Connector.class, Connector.class.getClassLoader()); |
| 88 | |
| 89 | Iterator<Connector> connectors = connectorLoader.iterator(); |
| 90 | |
| 91 | while (connectors.hasNext()) { |
| 92 | Connector connector; |
| 93 | |
| 94 | try { |
| 95 | connector = (Connector)connectors.next(); |
| 96 | } catch (ThreadDeath x) { |
| 97 | throw x; |
| 98 | } catch (Exception x) { |
| 99 | System.err.println(x); |
| 100 | continue; |
| 101 | } catch (Error x) { |
| 102 | System.err.println(x); |
| 103 | continue; |
| 104 | } |
| 105 | |
| 106 | addConnector(connector); |
| 107 | } |
| 108 | |
| 109 | /* |
| 110 | * Load any transport services and encapsulate them with |
| 111 | * an attaching and listening connector. |
| 112 | */ |
| 113 | ServiceLoader<TransportService> transportLoader = |
| 114 | ServiceLoader.load(TransportService.class, |
| 115 | TransportService.class.getClassLoader()); |
| 116 | |
| 117 | Iterator<TransportService> transportServices = |
| 118 | transportLoader.iterator(); |
| 119 | |
| 120 | while (transportServices.hasNext()) { |
| 121 | TransportService transportService; |
| 122 | |
| 123 | try { |
| 124 | transportService = (TransportService)transportServices.next(); |
| 125 | } catch (ThreadDeath x) { |
| 126 | throw x; |
| 127 | } catch (Exception x) { |
| 128 | System.err.println(x); |
| 129 | continue; |
| 130 | } catch (Error x) { |
| 131 | System.err.println(x); |
| 132 | continue; |
| 133 | } |
| 134 | |
| 135 | addConnector(GenericAttachingConnector.create(transportService)); |
| 136 | addConnector(GenericListeningConnector.create(transportService)); |
| 137 | } |
| 138 | |
| 139 | // no connectors found |
| 140 | if (allConnectors().size() == 0) { |
| 141 | throw new Error("no Connectors loaded"); |
| 142 | } |
| 143 | |
| 144 | // Set the default launcher. In order to be compatible |
| 145 | // 1.2/1.3/1.4 we try to make the default launcher |
| 146 | // "com.sun.jdi.CommandLineLaunch". If this connector |
| 147 | // isn't found then we arbitarly pick the first connector. |
| 148 | // |
| 149 | boolean found = false; |
| 150 | List<LaunchingConnector> launchers = launchingConnectors(); |
| 151 | for (LaunchingConnector lc: launchers) { |
| 152 | if (lc.name().equals("com.sun.jdi.CommandLineLaunch")) { |
| 153 | setDefaultConnector(lc); |
| 154 | found = true; |
| 155 | break; |
| 156 | } |
| 157 | } |
| 158 | if (!found && launchers.size() > 0) { |
| 159 | setDefaultConnector(launchers.get(0)); |
| 160 | } |
| 161 | |
| 162 | } |
| 163 | |
| 164 | public LaunchingConnector defaultConnector() { |
| 165 | if (defaultConnector == null) { |
| 166 | throw new Error("no default LaunchingConnector"); |
| 167 | } |
| 168 | return defaultConnector; |
| 169 | } |
| 170 | |
| 171 | public void setDefaultConnector(LaunchingConnector connector) { |
| 172 | defaultConnector = connector; |
| 173 | } |
| 174 | |
| 175 | public List<LaunchingConnector> launchingConnectors() { |
| 176 | List<LaunchingConnector> launchingConnectors = new ArrayList<LaunchingConnector>(connectors.size()); |
| 177 | for (Connector connector: connectors) { |
| 178 | if (connector instanceof LaunchingConnector) { |
| 179 | launchingConnectors.add((LaunchingConnector)connector); |
| 180 | } |
| 181 | } |
| 182 | return Collections.unmodifiableList(launchingConnectors); |
| 183 | } |
| 184 | |
| 185 | public List<AttachingConnector> attachingConnectors() { |
| 186 | List<AttachingConnector> attachingConnectors = new ArrayList<AttachingConnector>(connectors.size()); |
| 187 | for (Connector connector: connectors) { |
| 188 | if (connector instanceof AttachingConnector) { |
| 189 | attachingConnectors.add((AttachingConnector)connector); |
| 190 | } |
| 191 | } |
| 192 | return Collections.unmodifiableList(attachingConnectors); |
| 193 | } |
| 194 | |
| 195 | public List<ListeningConnector> listeningConnectors() { |
| 196 | List<ListeningConnector> listeningConnectors = new ArrayList<ListeningConnector>(connectors.size()); |
| 197 | for (Connector connector: connectors) { |
| 198 | if (connector instanceof ListeningConnector) { |
| 199 | listeningConnectors.add((ListeningConnector)connector); |
| 200 | } |
| 201 | } |
| 202 | return Collections.unmodifiableList(listeningConnectors); |
| 203 | } |
| 204 | |
| 205 | public List<Connector> allConnectors() { |
| 206 | return Collections.unmodifiableList(connectors); |
| 207 | } |
| 208 | |
| 209 | public List<VirtualMachine> connectedVirtualMachines() { |
| 210 | return Collections.unmodifiableList(targets); |
| 211 | } |
| 212 | |
| 213 | public void addConnector(Connector connector) { |
| 214 | connectors.add(connector); |
| 215 | } |
| 216 | |
| 217 | public void removeConnector(Connector connector) { |
| 218 | connectors.remove(connector); |
| 219 | } |
| 220 | |
| 221 | public synchronized VirtualMachine createVirtualMachine( |
| 222 | Connection connection, |
| 223 | Process process) throws IOException { |
| 224 | |
| 225 | if (!connection.isOpen()) { |
| 226 | throw new IllegalStateException("connection is not open"); |
| 227 | } |
| 228 | |
| 229 | VirtualMachine vm; |
| 230 | try { |
| 231 | vm = new VirtualMachineImpl(this, connection, process, |
| 232 | ++vmSequenceNumber); |
| 233 | } catch (VMDisconnectedException e) { |
| 234 | throw new IOException(e.getMessage()); |
| 235 | } |
| 236 | targets.add(vm); |
| 237 | return vm; |
| 238 | } |
| 239 | |
| 240 | public VirtualMachine createVirtualMachine(Connection connection) throws IOException { |
| 241 | return createVirtualMachine(connection, null); |
| 242 | } |
| 243 | |
| 244 | public void addVirtualMachine(VirtualMachine vm) { |
| 245 | targets.add(vm); |
| 246 | } |
| 247 | |
| 248 | void disposeVirtualMachine(VirtualMachine vm) { |
| 249 | targets.remove(vm); |
| 250 | } |
| 251 | |
| 252 | public int majorInterfaceVersion() { |
| 253 | return majorVersion; |
| 254 | } |
| 255 | |
| 256 | public int minorInterfaceVersion() { |
| 257 | return minorVersion; |
| 258 | } |
| 259 | |
| 260 | ThreadGroup mainGroupForJDI() { |
| 261 | return mainGroupForJDI; |
| 262 | } |
| 263 | |
| 264 | String getString(String key) { |
| 265 | if (messages == null) { |
| 266 | messages = ResourceBundle.getBundle("com.sun.tools.jdi.resources.jdi"); |
| 267 | } |
| 268 | return messages.getString(key); |
| 269 | } |
| 270 | |
| 271 | } |