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| 1 | +/* | |
| 2 | + * Copyright (c) 1998, 1999, 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.gui; | |
| 27 | + | |
| 28 | +import java.io.*; | |
| 29 | +import java.util.*; | |
| 30 | + | |
| 31 | +import javax.swing.*; | |
| 32 | +import java.awt.BorderLayout; | |
| 33 | +import java.awt.event.*; | |
| 34 | + | |
| 35 | +import com.sun.jdi.*; | |
| 36 | +import com.sun.jdi.event.*; | |
| 37 | + | |
| 38 | +import com.sun.tools.example.debug.bdi.*; | |
| 39 | +import com.sun.tools.example.debug.event.*; | |
| 40 | + | |
| 41 | +public class CommandTool extends JPanel { | |
| 42 | + | |
| 43 | + private static final long serialVersionUID = 8613516856378346415L; | |
| 44 | + | |
| 45 | + private Environment env; | |
| 46 | + | |
| 47 | + private ContextManager context; | |
| 48 | + private ExecutionManager runtime; | |
| 49 | + private SourceManager sourceManager; | |
| 50 | + | |
| 51 | + private TypeScript script; | |
| 52 | + | |
| 53 | + private static final String DEFAULT_CMD_PROMPT = "Command:"; | |
| 54 | + | |
| 55 | + public CommandTool(Environment env) { | |
| 56 | + | |
| 57 | + super(new BorderLayout()); | |
| 58 | + | |
| 59 | + this.env = env; | |
| 60 | + this.context = env.getContextManager(); | |
| 61 | + this.runtime = env.getExecutionManager(); | |
| 62 | + this.sourceManager = env.getSourceManager(); | |
| 63 | + | |
| 64 | + script = new TypeScript(DEFAULT_CMD_PROMPT, false); //no echo | |
| 65 | + this.add(script); | |
| 66 | + | |
| 67 | + final CommandInterpreter interpreter = | |
| 68 | + new CommandInterpreter(env); | |
| 69 | + | |
| 70 | + // Establish handler for incoming commands. | |
| 71 | + | |
| 72 | + script.addActionListener(new ActionListener() { | |
| 73 | + @Override | |
| 74 | + public void actionPerformed(ActionEvent e) { | |
| 75 | + interpreter.executeCommand(script.readln()); | |
| 76 | + } | |
| 77 | + }); | |
| 78 | + | |
| 79 | + // Establish ourselves as the listener for VM diagnostics. | |
| 80 | + | |
| 81 | + OutputListener diagnosticsListener = | |
| 82 | + new TypeScriptOutputListener(script, true); | |
| 83 | + runtime.addDiagnosticsListener(diagnosticsListener); | |
| 84 | + | |
| 85 | + // Establish ourselves as the shared debugger typescript. | |
| 86 | + | |
| 87 | + env.setTypeScript(new PrintWriter(new TypeScriptWriter(script))); | |
| 88 | + | |
| 89 | + // Handle VM events. | |
| 90 | + | |
| 91 | + TTYDebugListener listener = new TTYDebugListener(diagnosticsListener); | |
| 92 | + | |
| 93 | + runtime.addJDIListener(listener); | |
| 94 | + runtime.addSessionListener(listener); | |
| 95 | + runtime.addSpecListener(listener); | |
| 96 | + context.addContextListener(listener); | |
| 97 | + | |
| 98 | + //### remove listeners on exit! | |
| 99 | + | |
| 100 | + } | |
| 101 | + | |
| 102 | + private class TTYDebugListener implements | |
| 103 | + JDIListener, SessionListener, SpecListener, ContextListener { | |
| 104 | + | |
| 105 | + private OutputListener diagnostics; | |
| 106 | + | |
| 107 | + TTYDebugListener(OutputListener diagnostics) { | |
| 108 | + this.diagnostics = diagnostics; | |
| 109 | + } | |
| 110 | + | |
| 111 | + // JDIListener | |
| 112 | + | |
| 113 | + @Override | |
| 114 | + public void accessWatchpoint(AccessWatchpointEventSet e) { | |
| 115 | + setThread(e); | |
| 116 | + for (EventIterator it = e.eventIterator(); it.hasNext(); ) { | |
| 117 | + it.nextEvent(); | |
| 118 | + diagnostics.putString("Watchpoint hit: " + | |
| 119 | + locationString(e)); | |
| 120 | + } | |
| 121 | + } | |
| 122 | + | |
| 123 | + @Override | |
| 124 | + public void classPrepare(ClassPrepareEventSet e) { | |
| 125 | + if (context.getVerboseFlag()) { | |
| 126 | + String name = e.getReferenceType().name(); | |
| 127 | + diagnostics.putString("Class " + name + " loaded"); | |
| 128 | + } | |
| 129 | + } | |
| 130 | + | |
| 131 | + @Override | |
| 132 | + public void classUnload(ClassUnloadEventSet e) { | |
| 133 | + if (context.getVerboseFlag()) { | |
| 134 | + diagnostics.putString("Class " + e.getClassName() + | |
| 135 | + " unloaded."); | |
| 136 | + } | |
| 137 | + } | |
| 138 | + | |
| 139 | + @Override | |
| 140 | + public void exception(ExceptionEventSet e) { | |
| 141 | + setThread(e); | |
| 142 | + String name = e.getException().referenceType().name(); | |
| 143 | + diagnostics.putString("Exception: " + name); | |
| 144 | + } | |
| 145 | + | |
| 146 | + @Override | |
| 147 | + public void locationTrigger(LocationTriggerEventSet e) { | |
| 148 | + String locString = locationString(e); | |
| 149 | + setThread(e); | |
| 150 | + for (EventIterator it = e.eventIterator(); it.hasNext(); ) { | |
| 151 | + Event evt = it.nextEvent(); | |
| 152 | + if (evt instanceof BreakpointEvent) { | |
| 153 | + diagnostics.putString("Breakpoint hit: " + locString); | |
| 154 | + } else if (evt instanceof StepEvent) { | |
| 155 | + diagnostics.putString("Step completed: " + locString); | |
| 156 | + } else if (evt instanceof MethodEntryEvent) { | |
| 157 | + diagnostics.putString("Method entered: " + locString); | |
| 158 | + } else if (evt instanceof MethodExitEvent) { | |
| 159 | + diagnostics.putString("Method exited: " + locString); | |
| 160 | + } else { | |
| 161 | + diagnostics.putString("UNKNOWN event: " + e); | |
| 162 | + } | |
| 163 | + } | |
| 164 | + } | |
| 165 | + | |
| 166 | + @Override | |
| 167 | + public void modificationWatchpoint(ModificationWatchpointEventSet e) { | |
| 168 | + setThread(e); | |
| 169 | + for (EventIterator it = e.eventIterator(); it.hasNext(); ) { | |
| 170 | + it.nextEvent(); | |
| 171 | + diagnostics.putString("Watchpoint hit: " + | |
| 172 | + locationString(e)); | |
| 173 | + } | |
| 174 | + } | |
| 175 | + | |
| 176 | + @Override | |
| 177 | + public void threadDeath(ThreadDeathEventSet e) { | |
| 178 | + if (context.getVerboseFlag()) { | |
| 179 | + diagnostics.putString("Thread " + e.getThread() + | |
| 180 | + " ended."); | |
| 181 | + } | |
| 182 | + } | |
| 183 | + | |
| 184 | + @Override | |
| 185 | + public void threadStart(ThreadStartEventSet e) { | |
| 186 | + if (context.getVerboseFlag()) { | |
| 187 | + diagnostics.putString("Thread " + e.getThread() + | |
| 188 | + " started."); | |
| 189 | + } | |
| 190 | + } | |
| 191 | + | |
| 192 | + @Override | |
| 193 | + public void vmDeath(VMDeathEventSet e) { | |
| 194 | + script.setPrompt(DEFAULT_CMD_PROMPT); | |
| 195 | + diagnostics.putString("VM exited"); | |
| 196 | + } | |
| 197 | + | |
| 198 | + @Override | |
| 199 | + public void vmDisconnect(VMDisconnectEventSet e) { | |
| 200 | + script.setPrompt(DEFAULT_CMD_PROMPT); | |
| 201 | + diagnostics.putString("Disconnected from VM"); | |
| 202 | + } | |
| 203 | + | |
| 204 | + @Override | |
| 205 | + public void vmStart(VMStartEventSet e) { | |
| 206 | + script.setPrompt(DEFAULT_CMD_PROMPT); | |
| 207 | + diagnostics.putString("VM started"); | |
| 208 | + } | |
| 209 | + | |
| 210 | + // SessionListener | |
| 211 | + | |
| 212 | + @Override | |
| 213 | + public void sessionStart(EventObject e) {} | |
| 214 | + | |
| 215 | + @Override | |
| 216 | + public void sessionInterrupt(EventObject e) { | |
| 217 | + Thread.yield(); // fetch output | |
| 218 | + diagnostics.putString("VM interrupted by user."); | |
| 219 | + script.setPrompt(DEFAULT_CMD_PROMPT); | |
| 220 | + } | |
| 221 | + | |
| 222 | + @Override | |
| 223 | + public void sessionContinue(EventObject e) { | |
| 224 | + diagnostics.putString("Execution resumed."); | |
| 225 | + script.setPrompt(DEFAULT_CMD_PROMPT); | |
| 226 | + } | |
| 227 | + | |
| 228 | + // SpecListener | |
| 229 | + | |
| 230 | + @Override | |
| 231 | + public void breakpointSet(SpecEvent e) { | |
| 232 | + EventRequestSpec spec = e.getEventRequestSpec(); | |
| 233 | + diagnostics.putString("Breakpoint set at " + spec + "."); | |
| 234 | + } | |
| 235 | + @Override | |
| 236 | + public void breakpointDeferred(SpecEvent e) { | |
| 237 | + EventRequestSpec spec = e.getEventRequestSpec(); | |
| 238 | + diagnostics.putString("Breakpoint will be set at " + | |
| 239 | + spec + " when its class is loaded."); | |
| 240 | + } | |
| 241 | + @Override | |
| 242 | + public void breakpointDeleted(SpecEvent e) { | |
| 243 | + EventRequestSpec spec = e.getEventRequestSpec(); | |
| 244 | + diagnostics.putString("Breakpoint at " + spec.toString() + " deleted."); | |
| 245 | + } | |
| 246 | + @Override | |
| 247 | + public void breakpointResolved(SpecEvent e) { | |
| 248 | + EventRequestSpec spec = e.getEventRequestSpec(); | |
| 249 | + diagnostics.putString("Breakpoint resolved to " + spec.toString() + "."); | |
| 250 | + } | |
| 251 | + @Override | |
| 252 | + public void breakpointError(SpecErrorEvent e) { | |
| 253 | + EventRequestSpec spec = e.getEventRequestSpec(); | |
| 254 | + diagnostics.putString("Deferred breakpoint at " + | |
| 255 | + spec + " could not be resolved:" + | |
| 256 | + e.getReason()); | |
| 257 | + } | |
| 258 | + | |
| 259 | +//### Add info for watchpoints and exceptions | |
| 260 | + | |
| 261 | + @Override | |
| 262 | + public void watchpointSet(SpecEvent e) { | |
| 263 | + } | |
| 264 | + @Override | |
| 265 | + public void watchpointDeferred(SpecEvent e) { | |
| 266 | + } | |
| 267 | + @Override | |
| 268 | + public void watchpointDeleted(SpecEvent e) { | |
| 269 | + } | |
| 270 | + @Override | |
| 271 | + public void watchpointResolved(SpecEvent e) { | |
| 272 | + } | |
| 273 | + @Override | |
| 274 | + public void watchpointError(SpecErrorEvent e) { | |
| 275 | + } | |
| 276 | + | |
| 277 | + @Override | |
| 278 | + public void exceptionInterceptSet(SpecEvent e) { | |
| 279 | + } | |
| 280 | + @Override | |
| 281 | + public void exceptionInterceptDeferred(SpecEvent e) { | |
| 282 | + } | |
| 283 | + @Override | |
| 284 | + public void exceptionInterceptDeleted(SpecEvent e) { | |
| 285 | + } | |
| 286 | + @Override | |
| 287 | + public void exceptionInterceptResolved(SpecEvent e) { | |
| 288 | + } | |
| 289 | + @Override | |
| 290 | + public void exceptionInterceptError(SpecErrorEvent e) { | |
| 291 | + } | |
| 292 | + | |
| 293 | + | |
| 294 | + // ContextListener. | |
| 295 | + | |
| 296 | + // If the user selects a new current thread or frame, update prompt. | |
| 297 | + | |
| 298 | + @Override | |
| 299 | + public void currentFrameChanged(CurrentFrameChangedEvent e) { | |
| 300 | + // Update prompt only if affect thread is current. | |
| 301 | + ThreadReference thread = e.getThread(); | |
| 302 | + if (thread == context.getCurrentThread()) { | |
| 303 | + script.setPrompt(promptString(thread, e.getIndex())); | |
| 304 | + } | |
| 305 | + } | |
| 306 | + | |
| 307 | + } | |
| 308 | + | |
| 309 | + private String locationString(LocatableEventSet e) { | |
| 310 | + Location loc = e.getLocation(); | |
| 311 | + return "thread=\"" + e.getThread().name() + | |
| 312 | + "\", " + Utils.locationString(loc); | |
| 313 | + } | |
| 314 | + | |
| 315 | + private void setThread(LocatableEventSet e) { | |
| 316 | + if (!e.suspendedNone()) { | |
| 317 | + Thread.yield(); // fetch output | |
| 318 | + script.setPrompt(promptString(e.getThread(), 0)); | |
| 319 | + //### Current thread should be set elsewhere, e.g., | |
| 320 | + //### in ContextManager | |
| 321 | + //### context.setCurrentThread(thread); | |
| 322 | + } | |
| 323 | + } | |
| 324 | + | |
| 325 | + private String promptString(ThreadReference thread, int frameIndex) { | |
| 326 | + if (thread == null) { | |
| 327 | + return DEFAULT_CMD_PROMPT; | |
| 328 | + } else { | |
| 329 | + // Frame indices are presented to user as indexed from 1. | |
| 330 | + return (thread.name() + "[" + (frameIndex + 1) + "]:"); | |
| 331 | + } | |
| 332 | + } | |
| 333 | +} | |