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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.gui; | ||
| 27 | |||
| 28 | import java.io.*; | ||
| 29 | import java.util.*; | ||
| 30 | |||
| 31 | import com.sun.jdi.*; | ||
| 32 | import com.sun.tools.example.debug.bdi.*; | ||
| 33 | |||
| 34 | public class CommandInterpreter { | ||
| 35 | |||
| 36 | boolean echo; | ||
| 37 | |||
| 38 | Environment env; | ||
| 39 | |||
| 40 | private ContextManager context; | ||
| 41 | private ExecutionManager runtime; | ||
| 42 | private ClassManager classManager; | ||
| 43 | private SourceManager sourceManager; | ||
| 44 | |||
| 45 | private OutputSink out; //### Hack! Should be local in each method used. | ||
| 46 | private String lastCommand = "help"; | ||
| 47 | |||
| 48 | public CommandInterpreter(Environment env) { | ||
| 49 | this(env, true); | ||
| 50 | } | ||
| 51 | |||
| 52 | public CommandInterpreter(Environment env, boolean echo) { | ||
| 53 | this.env = env; | ||
| 54 | this.echo = echo; | ||
| 55 | this.runtime = env.getExecutionManager(); | ||
| 56 | this.context = env.getContextManager(); | ||
| 57 | this.classManager = env.getClassManager(); | ||
| 58 | this.sourceManager = env.getSourceManager(); | ||
| 59 | } | ||
| 60 | |||
| 61 | private ThreadReference[] threads = null; | ||
| 62 | |||
| 63 | /* | ||
| 64 | * The numbering of threads is relative to the current set of threads, | ||
| 65 | * and may be affected by the creation and termination of new threads. | ||
| 66 | * Commands issued using such thread ids will only give reliable behavior | ||
| 67 | * relative to what was shown earlier in 'list' commands if the VM is interrupted. | ||
| 68 | * We need a better scheme. | ||
| 69 | */ | ||
| 70 | |||
| 71 | private ThreadReference[] threads() throws NoSessionException { | ||
| 72 | if (threads == null) { | ||
| 73 | ThreadIterator ti = new ThreadIterator(getDefaultThreadGroup()); | ||
| 74 | List<ThreadReference> tlist = new ArrayList<ThreadReference>(); | ||
| 75 | while (ti.hasNext()) { | ||
| 76 | tlist.add(ti.nextThread()); | ||
| 77 | } | ||
| 78 | threads = tlist.toArray(new ThreadReference[tlist.size()]); | ||
| 79 | } | ||
| 80 | return threads; | ||
| 81 | } | ||
| 82 | |||
| 83 | private ThreadReference findThread(String idToken) throws NoSessionException { | ||
| 84 | String id; | ||
| 85 | ThreadReference thread = null; | ||
| 86 | if (idToken.startsWith("t@")) { | ||
| 87 | id = idToken.substring(2); | ||
| 88 | } else { | ||
| 89 | id = idToken; | ||
| 90 | } | ||
| 91 | try { | ||
| 92 | ThreadReference[] threads = threads(); | ||
| 93 | long threadID = Long.parseLong(id, 16); | ||
| 94 | for (ThreadReference thread2 : threads) { | ||
| 95 | if (thread2.uniqueID() == threadID) { | ||
| 96 | thread = thread2; | ||
| 97 | break; | ||
| 98 | } | ||
| 99 | } | ||
| 100 | if (thread == null) { | ||
| 101 | //env.failure("No thread for id \"" + idToken + "\""); | ||
| 102 | env.failure("\"" + idToken + "\" is not a valid thread id."); | ||
| 103 | } | ||
| 104 | } catch (NumberFormatException e) { | ||
| 105 | env.error("Thread id \"" + idToken + "\" is ill-formed."); | ||
| 106 | thread = null; | ||
| 107 | } | ||
| 108 | return thread; | ||
| 109 | } | ||
| 110 | |||
| 111 | private ThreadIterator allThreads() throws NoSessionException { | ||
| 112 | threads = null; | ||
| 113 | //### Why not use runtime.allThreads().iterator() ? | ||
| 114 | return new ThreadIterator(runtime.topLevelThreadGroups()); | ||
| 115 | } | ||
| 116 | |||
| 117 | private ThreadIterator currentThreadGroupThreads() throws NoSessionException { | ||
| 118 | threads = null; | ||
| 119 | return new ThreadIterator(getDefaultThreadGroup()); | ||
| 120 | } | ||
| 121 | |||
| 122 | private ThreadGroupIterator allThreadGroups() throws NoSessionException { | ||
| 123 | threads = null; | ||
| 124 | return new ThreadGroupIterator(runtime.topLevelThreadGroups()); | ||
| 125 | } | ||
| 126 | |||
| 127 | private ThreadGroupReference defaultThreadGroup; | ||
| 128 | |||
| 129 | private ThreadGroupReference getDefaultThreadGroup() throws NoSessionException { | ||
| 130 | if (defaultThreadGroup == null) { | ||
| 131 | defaultThreadGroup = runtime.systemThreadGroup(); | ||
| 132 | } | ||
| 133 | return defaultThreadGroup; | ||
| 134 | } | ||
| 135 | |||
| 136 | private void setDefaultThreadGroup(ThreadGroupReference tg) { | ||
| 137 | defaultThreadGroup = tg; | ||
| 138 | } | ||
| 139 | |||
| 140 | /* | ||
| 141 | * Command handlers. | ||
| 142 | */ | ||
| 143 | |||
| 144 | // Command: classes | ||
| 145 | |||
| 146 | private void commandClasses() throws NoSessionException { | ||
| 147 | OutputSink out = env.getOutputSink(); | ||
| 148 | //out.println("** classes list **"); | ||
| 149 | for (ReferenceType refType : runtime.allClasses()) { | ||
| 150 | out.println(refType.name()); | ||
| 151 | } | ||
| 152 | out.show(); | ||
| 153 | } | ||
| 154 | |||
| 155 | |||
| 156 | // Command: methods | ||
| 157 | |||
| 158 | private void commandMethods(StringTokenizer t) throws NoSessionException { | ||
| 159 | if (!t.hasMoreTokens()) { | ||
| 160 | env.error("No class specified."); | ||
| 161 | return; | ||
| 162 | } | ||
| 163 | String idClass = t.nextToken(); | ||
| 164 | ReferenceType cls = findClass(idClass); | ||
| 165 | if (cls != null) { | ||
| 166 | List<Method> methods = cls.allMethods(); | ||
| 167 | OutputSink out = env.getOutputSink(); | ||
| 168 | for (int i = 0; i < methods.size(); i++) { | ||
| 169 | Method method = methods.get(i); | ||
| 170 | out.print(method.declaringType().name() + " " + | ||
| 171 | method.name() + "("); | ||
| 172 | Iterator<String> it = method.argumentTypeNames().iterator(); | ||
| 173 | if (it.hasNext()) { | ||
| 174 | while (true) { | ||
| 175 | out.print(it.next()); | ||
| 176 | if (!it.hasNext()) { | ||
| 177 | break; | ||
| 178 | } | ||
| 179 | out.print(", "); | ||
| 180 | } | ||
| 181 | } | ||
| 182 | out.println(")"); | ||
| 183 | } | ||
| 184 | out.show(); | ||
| 185 | } else { | ||
| 186 | //### Should validate class name syntax. | ||
| 187 | env.failure("\"" + idClass + "\" is not a valid id or class name."); | ||
| 188 | } | ||
| 189 | } | ||
| 190 | |||
| 191 | private ReferenceType findClass(String pattern) throws NoSessionException { | ||
| 192 | List<ReferenceType> results = runtime.findClassesMatchingPattern(pattern); | ||
| 193 | if (results.size() > 0) { | ||
| 194 | //### Should handle multiple results sensibly. | ||
| 195 | return results.get(0); | ||
| 196 | } | ||
| 197 | return null; | ||
| 198 | } | ||
| 199 | |||
| 200 | // Command: threads | ||
| 201 | |||
| 202 | private void commandThreads(StringTokenizer t) throws NoSessionException { | ||
| 203 | if (!t.hasMoreTokens()) { | ||
| 204 | OutputSink out = env.getOutputSink(); | ||
| 205 | printThreadGroup(out, getDefaultThreadGroup(), 0); | ||
| 206 | out.show(); | ||
| 207 | return; | ||
| 208 | } | ||
| 209 | String name = t.nextToken(); | ||
| 210 | ThreadGroupReference tg = findThreadGroup(name); | ||
| 211 | if (tg == null) { | ||
| 212 | env.failure(name + " is not a valid threadgroup name."); | ||
| 213 | } else { | ||
| 214 | OutputSink out = env.getOutputSink(); | ||
| 215 | printThreadGroup(out, tg, 0); | ||
| 216 | out.show(); | ||
| 217 | } | ||
| 218 | } | ||
| 219 | |||
| 220 | private ThreadGroupReference findThreadGroup(String name) throws NoSessionException { | ||
| 221 | //### Issue: Uniqueness of thread group names is not enforced. | ||
| 222 | ThreadGroupIterator tgi = allThreadGroups(); | ||
| 223 | while (tgi.hasNext()) { | ||
| 224 | ThreadGroupReference tg = tgi.nextThreadGroup(); | ||
| 225 | if (tg.name().equals(name)) { | ||
| 226 | return tg; | ||
| 227 | } | ||
| 228 | } | ||
| 229 | return null; | ||
| 230 | } | ||
| 231 | |||
| 232 | private int printThreadGroup(OutputSink out, ThreadGroupReference tg, int iThread) { | ||
| 233 | out.println("Group " + tg.name() + ":"); | ||
| 234 | List<ThreadReference> tlist = tg.threads(); | ||
| 235 | int maxId = 0; | ||
| 236 | int maxName = 0; | ||
| 237 | for (int i = 0 ; i < tlist.size() ; i++) { | ||
| 238 | ThreadReference thr = tlist.get(i); | ||
| 239 | int len = Utils.description(thr).length(); | ||
| 240 | if (len > maxId) { | ||
| 241 | maxId = len; | ||
| 242 | } | ||
| 243 | String name = thr.name(); | ||
| 244 | int iDot = name.lastIndexOf('.'); | ||
| 245 | if (iDot >= 0 && name.length() > iDot) { | ||
| 246 | name = name.substring(iDot + 1); | ||
| 247 | } | ||
| 248 | if (name.length() > maxName) { | ||
| 249 | maxName = name.length(); | ||
| 250 | } | ||
| 251 | } | ||
| 252 | String maxNumString = String.valueOf(iThread + tlist.size()); | ||
| 253 | int maxNumDigits = maxNumString.length(); | ||
| 254 | for (int i = 0 ; i < tlist.size() ; i++) { | ||
| 255 | ThreadReference thr = tlist.get(i); | ||
| 256 | char buf[] = new char[80]; | ||
| 257 | for (int j = 0; j < 79; j++) { | ||
| 258 | buf[j] = ' '; | ||
| 259 | } | ||
| 260 | buf[79] = '\0'; | ||
| 261 | StringBuffer sbOut = new StringBuffer(); | ||
| 262 | sbOut.append(buf); | ||
| 263 | |||
| 264 | // Right-justify the thread number at start of output string | ||
| 265 | String numString = String.valueOf(iThread + i + 1); | ||
| 266 | sbOut.insert(maxNumDigits - numString.length(), | ||
| 267 | numString); | ||
| 268 | sbOut.insert(maxNumDigits, "."); | ||
| 269 | |||
| 270 | int iBuf = maxNumDigits + 2; | ||
| 271 | sbOut.insert(iBuf, Utils.description(thr)); | ||
| 272 | iBuf += maxId + 1; | ||
| 273 | String name = thr.name(); | ||
| 274 | int iDot = name.lastIndexOf('.'); | ||
| 275 | if (iDot >= 0 && name.length() > iDot) { | ||
| 276 | name = name.substring(iDot + 1); | ||
| 277 | } | ||
| 278 | sbOut.insert(iBuf, name); | ||
| 279 | iBuf += maxName + 1; | ||
| 280 | sbOut.insert(iBuf, Utils.getStatus(thr)); | ||
| 281 | sbOut.setLength(79); | ||
| 282 | out.println(sbOut.toString()); | ||
| 283 | } | ||
| 284 | for (ThreadGroupReference tg0 : tg.threadGroups()) { | ||
| 285 | if (!tg.equals(tg0)) { // TODO ref mgt | ||
| 286 | iThread += printThreadGroup(out, tg0, iThread + tlist.size()); | ||
| 287 | } | ||
| 288 | } | ||
| 289 | return tlist.size(); | ||
| 290 | } | ||
| 291 | |||
| 292 | // Command: threadgroups | ||
| 293 | |||
| 294 | private void commandThreadGroups() throws NoSessionException { | ||
| 295 | ThreadGroupIterator it = allThreadGroups(); | ||
| 296 | int cnt = 0; | ||
| 297 | OutputSink out = env.getOutputSink(); | ||
| 298 | while (it.hasNext()) { | ||
| 299 | ThreadGroupReference tg = it.nextThreadGroup(); | ||
| 300 | ++cnt; | ||
| 301 | out.println("" + cnt + ". " + Utils.description(tg) + " " + tg.name()); | ||
| 302 | } | ||
| 303 | out.show(); | ||
| 304 | } | ||
| 305 | |||
| 306 | // Command: thread | ||
| 307 | |||
| 308 | private void commandThread(StringTokenizer t) throws NoSessionException { | ||
| 309 | if (!t.hasMoreTokens()) { | ||
| 310 | env.error("Thread number not specified."); | ||
| 311 | return; | ||
| 312 | } | ||
| 313 | ThreadReference thread = findThread(t.nextToken()); | ||
| 314 | if (thread != null) { | ||
| 315 | //### Should notify user. | ||
| 316 | context.setCurrentThread(thread); | ||
| 317 | } | ||
| 318 | } | ||
| 319 | |||
| 320 | // Command: threadgroup | ||
| 321 | |||
| 322 | private void commandThreadGroup(StringTokenizer t) throws NoSessionException { | ||
| 323 | if (!t.hasMoreTokens()) { | ||
| 324 | env.error("Threadgroup name not specified."); | ||
| 325 | return; | ||
| 326 | } | ||
| 327 | String name = t.nextToken(); | ||
| 328 | ThreadGroupReference tg = findThreadGroup(name); | ||
| 329 | if (tg == null) { | ||
| 330 | env.failure(name + " is not a valid threadgroup name."); | ||
| 331 | } else { | ||
| 332 | //### Should notify user. | ||
| 333 | setDefaultThreadGroup(tg); | ||
| 334 | } | ||
| 335 | } | ||
| 336 | |||
| 337 | // Command: run | ||
| 338 | |||
| 339 | private void commandRun(StringTokenizer t) throws NoSessionException { | ||
| 340 | if (doLoad(false, t)) { | ||
| 341 | env.notice("Running ..."); | ||
| 342 | } | ||
| 343 | } | ||
| 344 | |||
| 345 | // Command: load | ||
| 346 | |||
| 347 | private void commandLoad(StringTokenizer t) throws NoSessionException { | ||
| 348 | if (doLoad(true, t)) {} | ||
| 349 | } | ||
| 350 | |||
| 351 | private boolean doLoad(boolean suspended, | ||
| 352 | StringTokenizer t) throws NoSessionException { | ||
| 353 | |||
| 354 | String clname; | ||
| 355 | |||
| 356 | if (!t.hasMoreTokens()) { | ||
| 357 | clname = context.getMainClassName(); | ||
| 358 | if (!clname.equals("")) { | ||
| 359 | // Run from prevously-set class name. | ||
| 360 | try { | ||
| 361 | String vmArgs = context.getVmArguments(); | ||
| 362 | runtime.run(suspended, | ||
| 363 | vmArgs, | ||
| 364 | clname, | ||
| 365 | context.getProgramArguments()); | ||
| 366 | return true; | ||
| 367 | } catch (VMLaunchFailureException e) { | ||
| 368 | env.failure("Attempt to launch main class \"" + clname + "\" failed."); | ||
| 369 | } | ||
| 370 | } else { | ||
| 371 | env.failure("No main class specifed and no current default defined."); | ||
| 372 | } | ||
| 373 | } else { | ||
| 374 | clname = t.nextToken(); | ||
| 375 | StringBuffer sbuf = new StringBuffer(); | ||
| 376 | // Allow VM arguments to be specified here? | ||
| 377 | while (t.hasMoreTokens()) { | ||
| 378 | String tok = t.nextToken(); | ||
| 379 | sbuf.append(tok); | ||
| 380 | if (t.hasMoreTokens()) { | ||
| 381 | sbuf.append(' '); | ||
| 382 | } | ||
| 383 | } | ||
| 384 | String args = sbuf.toString(); | ||
| 385 | try { | ||
| 386 | String vmArgs = context.getVmArguments(); | ||
| 387 | runtime.run(suspended, vmArgs, clname, args); | ||
| 388 | context.setMainClassName(clname); | ||
| 389 | //context.setVmArguments(vmArgs); | ||
| 390 | context.setProgramArguments(args); | ||
| 391 | return true; | ||
| 392 | } catch (VMLaunchFailureException e) { | ||
| 393 | env.failure("Attempt to launch main class \"" + clname + "\" failed."); | ||
| 394 | } | ||
| 395 | } | ||
| 396 | return false; | ||
| 397 | } | ||
| 398 | |||
| 399 | // Command: connect | ||
| 400 | |||
| 401 | private void commandConnect(StringTokenizer t) { | ||
| 402 | try { | ||
| 403 | LaunchTool.queryAndLaunchVM(runtime); | ||
| 404 | } catch (VMLaunchFailureException e) { | ||
| 405 | env.failure("Attempt to connect failed."); | ||
| 406 | } | ||
| 407 | } | ||
| 408 | |||
| 409 | // Command: attach | ||
| 410 | |||
| 411 | private void commandAttach(StringTokenizer t) { | ||
| 412 | String portName; | ||
| 413 | if (!t.hasMoreTokens()) { | ||
| 414 | portName = context.getRemotePort(); | ||
| 415 | if (!portName.equals("")) { | ||
| 416 | try { | ||
| 417 | runtime.attach(portName); | ||
| 418 | } catch (VMLaunchFailureException e) { | ||
| 419 | env.failure("Attempt to attach to port \"" + portName + "\" failed."); | ||
| 420 | } | ||
| 421 | } else { | ||
| 422 | env.failure("No port specifed and no current default defined."); | ||
| 423 | } | ||
| 424 | } else { | ||
| 425 | portName = t.nextToken(); | ||
| 426 | try { | ||
| 427 | runtime.attach(portName); | ||
| 428 | } catch (VMLaunchFailureException e) { | ||
| 429 | env.failure("Attempt to attach to port \"" + portName + "\" failed."); | ||
| 430 | } | ||
| 431 | context.setRemotePort(portName); | ||
| 432 | } | ||
| 433 | } | ||
| 434 | |||
| 435 | // Command: detach | ||
| 436 | |||
| 437 | private void commandDetach(StringTokenizer t) throws NoSessionException { | ||
| 438 | runtime.detach(); | ||
| 439 | } | ||
| 440 | |||
| 441 | // Command: interrupt | ||
| 442 | |||
| 443 | private void commandInterrupt(StringTokenizer t) throws NoSessionException { | ||
| 444 | runtime.interrupt(); | ||
| 445 | } | ||
| 446 | |||
| 447 | // Command: suspend | ||
| 448 | |||
| 449 | private void commandSuspend(StringTokenizer t) throws NoSessionException { | ||
| 450 | if (!t.hasMoreTokens()) { | ||
| 451 | // Suspend all threads in the current thread group. | ||
| 452 | //### Issue: help message says default is all threads. | ||
| 453 | //### Behavior here agrees with 'jdb', however. | ||
| 454 | ThreadIterator ti = currentThreadGroupThreads(); | ||
| 455 | while (ti.hasNext()) { | ||
| 456 | // TODO - don't suspend debugger threads | ||
| 457 | ti.nextThread().suspend(); | ||
| 458 | } | ||
| 459 | env.notice("All (non-system) threads suspended."); | ||
| 460 | } else { | ||
| 461 | while (t.hasMoreTokens()) { | ||
| 462 | ThreadReference thread = findThread(t.nextToken()); | ||
| 463 | if (thread != null) { | ||
| 464 | //thread.suspend(); | ||
| 465 | runtime.suspendThread(thread); | ||
| 466 | } | ||
| 467 | } | ||
| 468 | } | ||
| 469 | } | ||
| 470 | |||
| 471 | // Command: resume | ||
| 472 | |||
| 473 | private void commandResume(StringTokenizer t) throws NoSessionException { | ||
| 474 | if (!t.hasMoreTokens()) { | ||
| 475 | // Suspend all threads in the current thread group. | ||
| 476 | //### Issue: help message says default is all threads. | ||
| 477 | //### Behavior here agrees with 'jdb', however. | ||
| 478 | ThreadIterator ti = currentThreadGroupThreads(); | ||
| 479 | while (ti.hasNext()) { | ||
| 480 | // TODO - don't suspend debugger threads | ||
| 481 | ti.nextThread().resume(); | ||
| 482 | } | ||
| 483 | env.notice("All threads resumed."); | ||
| 484 | } else { | ||
| 485 | while (t.hasMoreTokens()) { | ||
| 486 | ThreadReference thread = findThread(t.nextToken()); | ||
| 487 | if (thread != null) { | ||
| 488 | //thread.resume(); | ||
| 489 | runtime.resumeThread(thread); | ||
| 490 | } | ||
| 491 | } | ||
| 492 | } | ||
| 493 | } | ||
| 494 | |||
| 495 | // Command: cont | ||
| 496 | |||
| 497 | private void commandCont() throws NoSessionException { | ||
| 498 | try { | ||
| 499 | runtime.go(); | ||
| 500 | } catch (VMNotInterruptedException e) { | ||
| 501 | //### failure? | ||
| 502 | env.notice("Target VM is already running."); | ||
| 503 | } | ||
| 504 | } | ||
| 505 | |||
| 506 | // Command: step | ||
| 507 | |||
| 508 | private void commandStep(StringTokenizer t) throws NoSessionException{ | ||
| 509 | ThreadReference current = context.getCurrentThread(); | ||
| 510 | if (current == null) { | ||
| 511 | env.failure("No current thread."); | ||
| 512 | return; | ||
| 513 | } | ||
| 514 | try { | ||
| 515 | if (t.hasMoreTokens() && | ||
| 516 | t.nextToken().toLowerCase().equals("up")) { | ||
| 517 | runtime.stepOut(current); | ||
| 518 | } else { | ||
| 519 | runtime.stepIntoLine(current); | ||
| 520 | } | ||
| 521 | } catch (AbsentInformationException e) { | ||
| 522 | env.failure("No linenumber information available -- " + | ||
| 523 | "Try \"stepi\" to step by instructions."); | ||
| 524 | } | ||
| 525 | } | ||
| 526 | |||
| 527 | // Command: stepi | ||
| 528 | |||
| 529 | private void commandStepi() throws NoSessionException { | ||
| 530 | ThreadReference current = context.getCurrentThread(); | ||
| 531 | if (current == null) { | ||
| 532 | env.failure("No current thread."); | ||
| 533 | return; | ||
| 534 | } | ||
| 535 | runtime.stepIntoInstruction(current); | ||
| 536 | } | ||
| 537 | |||
| 538 | // Command: next | ||
| 539 | |||
| 540 | private void commandNext() throws NoSessionException { | ||
| 541 | ThreadReference current = context.getCurrentThread(); | ||
| 542 | if (current == null) { | ||
| 543 | env.failure("No current thread."); | ||
| 544 | return; | ||
| 545 | } | ||
| 546 | try { | ||
| 547 | runtime.stepOverLine(current); | ||
| 548 | } catch (AbsentInformationException e) { | ||
| 549 | env.failure("No linenumber information available -- " + | ||
| 550 | "Try \"nexti\" to step by instructions."); | ||
| 551 | } | ||
| 552 | } | ||
| 553 | |||
| 554 | // Command: nexti (NEW) | ||
| 555 | |||
| 556 | private void commandNexti() throws NoSessionException { | ||
| 557 | ThreadReference current = context.getCurrentThread(); | ||
| 558 | if (current == null) { | ||
| 559 | env.failure("No current thread."); | ||
| 560 | return; | ||
| 561 | } | ||
| 562 | runtime.stepOverInstruction(current); | ||
| 563 | } | ||
| 564 | |||
| 565 | // Command: kill | ||
| 566 | |||
| 567 | private void commandKill(StringTokenizer t) throws NoSessionException { | ||
| 568 | //### Should change the way in which thread ids and threadgroup names | ||
| 569 | //### are distinguished. | ||
| 570 | if (!t.hasMoreTokens()) { | ||
| 571 | env.error("Usage: kill <threadgroup name> or <thread id>"); | ||
| 572 | return; | ||
| 573 | } | ||
| 574 | while (t.hasMoreTokens()) { | ||
| 575 | String idToken = t.nextToken(); | ||
| 576 | ThreadReference thread = findThread(idToken); | ||
| 577 | if (thread != null) { | ||
| 578 | runtime.stopThread(thread); | ||
| 579 | env.notice("Thread " + thread.name() + " killed."); | ||
| 580 | return; | ||
| 581 | } else { | ||
| 582 | /* Check for threadgroup name, NOT skipping "system". */ | ||
| 583 | //### Should skip "system"? Classic 'jdb' does this. | ||
| 584 | //### Should deal with possible non-uniqueness of threadgroup names. | ||
| 585 | ThreadGroupIterator itg = allThreadGroups(); | ||
| 586 | while (itg.hasNext()) { | ||
| 587 | ThreadGroupReference tg = itg.nextThreadGroup(); | ||
| 588 | if (tg.name().equals(idToken)) { | ||
| 589 | ThreadIterator it = new ThreadIterator(tg); | ||
| 590 | while (it.hasNext()) { | ||
| 591 | runtime.stopThread(it.nextThread()); | ||
| 592 | } | ||
| 593 | env.notice("Threadgroup " + tg.name() + "killed."); | ||
| 594 | return; | ||
| 595 | } | ||
| 596 | } | ||
| 597 | env.failure("\"" + idToken + | ||
| 598 | "\" is not a valid threadgroup or id."); | ||
| 599 | } | ||
| 600 | } | ||
| 601 | } | ||
| 602 | |||
| 603 | |||
| 604 | /************* | ||
| 605 | // TODO | ||
| 606 | private void commandCatchException(StringTokenizer t) throws NoSessionException {} | ||
| 607 | // TODO | ||
| 608 | private void commandIgnoreException(StringTokenizer t) throws NoSessionException {} | ||
| 609 | *************/ | ||
| 610 | |||
| 611 | // Command: up | ||
| 612 | |||
| 613 | //### Print current frame after command? | ||
| 614 | |||
| 615 | int readCount(StringTokenizer t) { | ||
| 616 | int cnt = 1; | ||
| 617 | if (t.hasMoreTokens()) { | ||
| 618 | String idToken = t.nextToken(); | ||
| 619 | try { | ||
| 620 | cnt = Integer.valueOf(idToken).intValue(); | ||
| 621 | } catch (NumberFormatException e) { | ||
| 622 | cnt = -1; | ||
| 623 | } | ||
| 624 | } | ||
| 625 | return cnt; | ||
| 626 | } | ||
| 627 | |||
| 628 | void commandUp(StringTokenizer t) throws NoSessionException { | ||
| 629 | ThreadReference current = context.getCurrentThread(); | ||
| 630 | if (current == null) { | ||
| 631 | env.failure("No current thread."); | ||
| 632 | return; | ||
| 633 | } | ||
| 634 | int nLevels = readCount(t); | ||
| 635 | if (nLevels <= 0) { | ||
| 636 | env.error("usage: up [n frames]"); | ||
| 637 | return; | ||
| 638 | } | ||
| 639 | try { | ||
| 640 | int delta = context.moveCurrentFrameIndex(current, -nLevels); | ||
| 641 | if (delta == 0) { | ||
| 642 | env.notice("Already at top of stack."); | ||
| 643 | } else if (-delta < nLevels) { | ||
| 644 | env.notice("Moved up " + delta + " frames to top of stack."); | ||
| 645 | } | ||
| 646 | } catch (VMNotInterruptedException e) { | ||
| 647 | env.failure("Target VM must be in interrupted state."); | ||
| 648 | } | ||
| 649 | } | ||
| 650 | |||
| 651 | private void commandDown(StringTokenizer t) throws NoSessionException { | ||
| 652 | ThreadReference current = context.getCurrentThread(); | ||
| 653 | if (current == null) { | ||
| 654 | env.failure("No current thread."); | ||
| 655 | return; | ||
| 656 | } | ||
| 657 | int nLevels = readCount(t); | ||
| 658 | if (nLevels <= 0) { | ||
| 659 | env.error("usage: down [n frames]"); | ||
| 660 | return; | ||
| 661 | } | ||
| 662 | try { | ||
| 663 | int delta = context.moveCurrentFrameIndex(current, nLevels); | ||
| 664 | if (delta == 0) { | ||
| 665 | env.notice("Already at bottom of stack."); | ||
| 666 | } else if (delta < nLevels) { | ||
| 667 | env.notice("Moved down " + delta + " frames to bottom of stack."); | ||
| 668 | } | ||
| 669 | } catch (VMNotInterruptedException e) { | ||
| 670 | env.failure("Target VM must be in interrupted state."); | ||
| 671 | } | ||
| 672 | } | ||
| 673 | |||
| 674 | // Command: frame | ||
| 675 | |||
| 676 | private void commandFrame(StringTokenizer t) throws NoSessionException { | ||
| 677 | ThreadReference current = context.getCurrentThread(); | ||
| 678 | if (current == null) { | ||
| 679 | env.failure("No current thread."); | ||
| 680 | return; | ||
| 681 | } | ||
| 682 | if (!t.hasMoreTokens()) { | ||
| 683 | env.error("usage: frame <frame-index>"); | ||
| 684 | return; | ||
| 685 | } | ||
| 686 | String idToken = t.nextToken(); | ||
| 687 | int n; | ||
| 688 | try { | ||
| 689 | n = Integer.valueOf(idToken).intValue(); | ||
| 690 | } catch (NumberFormatException e) { | ||
| 691 | n = 0; | ||
| 692 | } | ||
| 693 | if (n <= 0) { | ||
| 694 | env.error("use positive frame index"); | ||
| 695 | return; | ||
| 696 | } | ||
| 697 | try { | ||
| 698 | int delta = context.setCurrentFrameIndex(current, n); | ||
| 699 | if (delta == 0) { | ||
| 700 | env.notice("Frame unchanged."); | ||
| 701 | } else if (delta < 0) { | ||
| 702 | env.notice("Moved up " + -delta + " frames."); | ||
| 703 | } else { | ||
| 704 | env.notice("Moved down " + delta + " frames."); | ||
| 705 | } | ||
| 706 | } catch (VMNotInterruptedException e) { | ||
| 707 | env.failure("Target VM must be in interrupted state."); | ||
| 708 | } | ||
| 709 | } | ||
| 710 | |||
| 711 | // Command: where | ||
| 712 | |||
| 713 | //### Should we insist that VM be interrupted here? | ||
| 714 | //### There is an inconsistency between the 'where' command | ||
| 715 | //### and 'up' and 'down' in this respect. | ||
| 716 | |||
| 717 | private void commandWhere(StringTokenizer t, boolean showPC) | ||
| 718 | throws NoSessionException { | ||
| 719 | ThreadReference current = context.getCurrentThread(); | ||
| 720 | if (!t.hasMoreTokens()) { | ||
| 721 | if (current == null) { | ||
| 722 | env.error("No thread specified."); | ||
| 723 | return; | ||
| 724 | } | ||
| 725 | dumpStack(current, showPC); | ||
| 726 | } else { | ||
| 727 | String token = t.nextToken(); | ||
| 728 | if (token.toLowerCase().equals("all")) { | ||
| 729 | ThreadIterator it = allThreads(); | ||
| 730 | while (it.hasNext()) { | ||
| 731 | ThreadReference thread = it.next(); | ||
| 732 | out.println(thread.name() + ": "); | ||
| 733 | dumpStack(thread, showPC); | ||
| 734 | } | ||
| 735 | } else { | ||
| 736 | ThreadReference thread = findThread(t.nextToken()); | ||
| 737 | //### Do we want to set current thread here? | ||
| 738 | //### Should notify user of change. | ||
| 739 | if (thread != null) { | ||
| 740 | context.setCurrentThread(thread); | ||
| 741 | } | ||
| 742 | dumpStack(thread, showPC); | ||
| 743 | } | ||
| 744 | } | ||
| 745 | } | ||
| 746 | |||
| 747 | private void dumpStack(ThreadReference thread, boolean showPC) { | ||
| 748 | //### Check for these. | ||
| 749 | //env.failure("Thread no longer exists."); | ||
| 750 | //env.failure("Target VM must be in interrupted state."); | ||
| 751 | //env.failure("Current thread isn't suspended."); | ||
| 752 | //### Should handle extremely long stack traces sensibly for user. | ||
| 753 | List<StackFrame> stack = null; | ||
| 754 | try { | ||
| 755 | stack = thread.frames(); | ||
| 756 | } catch (IncompatibleThreadStateException e) { | ||
| 757 | env.failure("Thread is not suspended."); | ||
| 758 | } | ||
| 759 | //### Fix this! | ||
| 760 | //### Previously mishandled cases where thread was not current. | ||
| 761 | //### Now, prints all of the stack regardless of current frame. | ||
| 762 | int frameIndex = 0; | ||
| 763 | //int frameIndex = context.getCurrentFrameIndex(); | ||
| 764 | if (stack == null) { | ||
| 765 | env.failure("Thread is not running (no stack)."); | ||
| 766 | } else { | ||
| 767 | OutputSink out = env.getOutputSink(); | ||
| 768 | int nFrames = stack.size(); | ||
| 769 | for (int i = frameIndex; i < nFrames; i++) { | ||
| 770 | StackFrame frame = stack.get(i); | ||
| 771 | Location loc = frame.location(); | ||
| 772 | Method meth = loc.method(); | ||
| 773 | out.print(" [" + (i + 1) + "] "); | ||
| 774 | out.print(meth.declaringType().name()); | ||
| 775 | out.print('.'); | ||
| 776 | out.print(meth.name()); | ||
| 777 | out.print(" ("); | ||
| 778 | if (meth.isNative()) { | ||
| 779 | out.print("native method"); | ||
| 780 | } else if (loc.lineNumber() != -1) { | ||
| 781 | try { | ||
| 782 | out.print(loc.sourceName()); | ||
| 783 | } catch (AbsentInformationException e) { | ||
| 784 | out.print("<unknown>"); | ||
| 785 | } | ||
| 786 | out.print(':'); | ||
| 787 | out.print(loc.lineNumber()); | ||
| 788 | } | ||
| 789 | out.print(')'); | ||
| 790 | if (showPC) { | ||
| 791 | long pc = loc.codeIndex(); | ||
| 792 | if (pc != -1) { | ||
| 793 | out.print(", pc = " + pc); | ||
| 794 | } | ||
| 795 | } | ||
| 796 | out.println(); | ||
| 797 | } | ||
| 798 | out.show(); | ||
| 799 | } | ||
| 800 | } | ||
| 801 | |||
| 802 | private void listEventRequests() throws NoSessionException { | ||
| 803 | // Print set breakpoints | ||
| 804 | List<EventRequestSpec> specs = runtime.eventRequestSpecs(); | ||
| 805 | if (specs.isEmpty()) { | ||
| 806 | env.notice("No breakpoints/watchpoints/exceptions set."); | ||
| 807 | } else { | ||
| 808 | OutputSink out = env.getOutputSink(); | ||
| 809 | out.println("Current breakpoints/watchpoints/exceptions set:"); | ||
| 810 | for (EventRequestSpec bp : specs) { | ||
| 811 | out.println("\t" + bp); | ||
| 812 | } | ||
| 813 | out.show(); | ||
| 814 | } | ||
| 815 | } | ||
| 816 | |||
| 817 | private BreakpointSpec parseBreakpointSpec(String bptSpec) { | ||
| 818 | StringTokenizer t = new StringTokenizer(bptSpec); | ||
| 819 | BreakpointSpec bpSpec = null; | ||
| 820 | // try { | ||
| 821 | String token = t.nextToken("@:( \t\n\r"); | ||
| 822 | // We can't use hasMoreTokens here because it will cause any leading | ||
| 823 | // paren to be lost. | ||
| 824 | String rest; | ||
| 825 | try { | ||
| 826 | rest = t.nextToken("").trim(); | ||
| 827 | } catch (NoSuchElementException e) { | ||
| 828 | rest = null; | ||
| 829 | } | ||
| 830 | if ((rest != null) && rest.startsWith("@")) { | ||
| 831 | t = new StringTokenizer(rest.substring(1)); | ||
| 832 | String sourceName = token; | ||
| 833 | String lineToken = t.nextToken(); | ||
| 834 | int lineNumber = Integer.valueOf(lineToken).intValue(); | ||
| 835 | if (t.hasMoreTokens()) { | ||
| 836 | return null; | ||
| 837 | } | ||
| 838 | bpSpec = runtime.createSourceLineBreakpoint(sourceName, | ||
| 839 | lineNumber); | ||
| 840 | } else if ((rest != null) && rest.startsWith(":")) { | ||
| 841 | t = new StringTokenizer(rest.substring(1)); | ||
| 842 | String classId = token; | ||
| 843 | String lineToken = t.nextToken(); | ||
| 844 | int lineNumber = Integer.valueOf(lineToken).intValue(); | ||
| 845 | if (t.hasMoreTokens()) { | ||
| 846 | return null; | ||
| 847 | } | ||
| 848 | bpSpec = runtime.createClassLineBreakpoint(classId, lineNumber); | ||
| 849 | } else { | ||
| 850 | // Try stripping method from class.method token. | ||
| 851 | int idot = token.lastIndexOf("."); | ||
| 852 | if ( (idot <= 0) || /* No dot or dot in first char */ | ||
| 853 | (idot >= token.length() - 1) ) { /* dot in last char */ | ||
| 854 | return null; | ||
| 855 | } | ||
| 856 | String methodName = token.substring(idot + 1); | ||
| 857 | String classId = token.substring(0, idot); | ||
| 858 | List<String> argumentList = null; | ||
| 859 | if (rest != null) { | ||
| 860 | if (!rest.startsWith("(") || !rest.endsWith(")")) { | ||
| 861 | //### Should throw exception with error message | ||
| 862 | //out.println("Invalid method specification: " | ||
| 863 | // + methodName + rest); | ||
| 864 | return null; | ||
| 865 | } | ||
| 866 | // Trim the parens | ||
| 867 | //### What about spaces in arglist? | ||
| 868 | rest = rest.substring(1, rest.length() - 1); | ||
| 869 | argumentList = new ArrayList<String>(); | ||
| 870 | t = new StringTokenizer(rest, ","); | ||
| 871 | while (t.hasMoreTokens()) { | ||
| 872 | argumentList.add(t.nextToken()); | ||
| 873 | } | ||
| 874 | } | ||
| 875 | bpSpec = runtime.createMethodBreakpoint(classId, | ||
| 876 | methodName, | ||
| 877 | argumentList); | ||
| 878 | } | ||
| 879 | // } catch (Exception e) { | ||
| 880 | // env.error("Exception attempting to create breakpoint: " + e); | ||
| 881 | // return null; | ||
| 882 | // } | ||
| 883 | return bpSpec; | ||
| 884 | } | ||
| 885 | |||
| 886 | private void commandStop(StringTokenizer t) throws NoSessionException { | ||
| 887 | String token; | ||
| 888 | |||
| 889 | if (!t.hasMoreTokens()) { | ||
| 890 | listEventRequests(); | ||
| 891 | } else { | ||
| 892 | token = t.nextToken(); | ||
| 893 | // Ignore optional "at" or "in" token. | ||
| 894 | // Allowed for backward compatibility. | ||
| 895 | if (token.equals("at") || token.equals("in")) { | ||
| 896 | if (t.hasMoreTokens()) { | ||
| 897 | token = t.nextToken(); | ||
| 898 | } else { | ||
| 899 | env.error("Missing breakpoint specification."); | ||
| 900 | return; | ||
| 901 | } | ||
| 902 | } | ||
| 903 | BreakpointSpec bpSpec = parseBreakpointSpec(token); | ||
| 904 | if (bpSpec != null) { | ||
| 905 | //### Add sanity-checks for deferred breakpoint. | ||
| 906 | runtime.install(bpSpec); | ||
| 907 | } else { | ||
| 908 | env.error("Ill-formed breakpoint specification."); | ||
| 909 | } | ||
| 910 | } | ||
| 911 | } | ||
| 912 | |||
| 913 | private void commandClear(StringTokenizer t) throws NoSessionException { | ||
| 914 | if (!t.hasMoreTokens()) { | ||
| 915 | // Print set breakpoints | ||
| 916 | listEventRequests(); | ||
| 917 | return; | ||
| 918 | } | ||
| 919 | //### need 'clear all' | ||
| 920 | BreakpointSpec bpSpec = parseBreakpointSpec(t.nextToken()); | ||
| 921 | if (bpSpec != null) { | ||
| 922 | List<EventRequestSpec> specs = runtime.eventRequestSpecs(); | ||
| 923 | |||
| 924 | if (specs.isEmpty()) { | ||
| 925 | env.notice("No breakpoints set."); | ||
| 926 | } else { | ||
| 927 | List<EventRequestSpec> toDelete = new ArrayList<EventRequestSpec>(); | ||
| 928 | for (EventRequestSpec spec : specs) { | ||
| 929 | if (spec.equals(bpSpec)) { | ||
| 930 | toDelete.add(spec); | ||
| 931 | } | ||
| 932 | } | ||
| 933 | // The request used for matching should be found | ||
| 934 | if (toDelete.size() <= 1) { | ||
| 935 | env.notice("No matching breakpoint set."); | ||
| 936 | } | ||
| 937 | for (EventRequestSpec spec : toDelete) { | ||
| 938 | runtime.delete(spec); | ||
| 939 | } | ||
| 940 | } | ||
| 941 | } else { | ||
| 942 | env.error("Ill-formed breakpoint specification."); | ||
| 943 | } | ||
| 944 | } | ||
| 945 | |||
| 946 | // Command: list | ||
| 947 | |||
| 948 | private void commandList(StringTokenizer t) throws NoSessionException { | ||
| 949 | ThreadReference current = context.getCurrentThread(); | ||
| 950 | if (current == null) { | ||
| 951 | env.error("No thread specified."); | ||
| 952 | return; | ||
| 953 | } | ||
| 954 | Location loc; | ||
| 955 | try { | ||
| 956 | StackFrame frame = context.getCurrentFrame(current); | ||
| 957 | if (frame == null) { | ||
| 958 | env.failure("Thread has not yet begun execution."); | ||
| 959 | return; | ||
| 960 | } | ||
| 961 | loc = frame.location(); | ||
| 962 | } catch (VMNotInterruptedException e) { | ||
| 963 | env.failure("Target VM must be in interrupted state."); | ||
| 964 | return; | ||
| 965 | } | ||
| 966 | SourceModel source = sourceManager.sourceForLocation(loc); | ||
| 967 | if (source == null) { | ||
| 968 | if (loc.method().isNative()) { | ||
| 969 | env.failure("Current method is native."); | ||
| 970 | return; | ||
| 971 | } | ||
| 972 | env.failure("No source available for " + Utils.locationString(loc) + "."); | ||
| 973 | return; | ||
| 974 | } | ||
| 975 | ReferenceType refType = loc.declaringType(); | ||
| 976 | int lineno = loc.lineNumber(); | ||
| 977 | if (t.hasMoreTokens()) { | ||
| 978 | String id = t.nextToken(); | ||
| 979 | // See if token is a line number. | ||
| 980 | try { | ||
| 981 | lineno = Integer.valueOf(id).intValue(); | ||
| 982 | } catch (NumberFormatException nfe) { | ||
| 983 | // It isn't -- see if it's a method name. | ||
| 984 | List<Method> meths = refType.methodsByName(id); | ||
| 985 | if (meths == null || meths.size() == 0) { | ||
| 986 | env.failure(id + | ||
| 987 | " is not a valid line number or " + | ||
| 988 | "method name for class " + | ||
| 989 | refType.name()); | ||
| 990 | return; | ||
| 991 | } else if (meths.size() > 1) { | ||
| 992 | env.failure(id + | ||
| 993 | " is an ambiguous method name in" + | ||
| 994 | refType.name()); | ||
| 995 | return; | ||
| 996 | } | ||
| 997 | loc = meths.get(0).location(); | ||
| 998 | lineno = loc.lineNumber(); | ||
| 999 | } | ||
| 1000 | } | ||
| 1001 | int startLine = (lineno > 4) ? lineno - 4 : 1; | ||
| 1002 | int endLine = startLine + 9; | ||
| 1003 | String sourceLine = source.sourceLine(lineno); | ||
| 1004 | if (sourceLine == null) { | ||
| 1005 | env.failure("" + | ||
| 1006 | lineno + | ||
| 1007 | " is an invalid line number for " + | ||
| 1008 | refType.name()); | ||
| 1009 | } else { | ||
| 1010 | OutputSink out = env.getOutputSink(); | ||
| 1011 | for (int i = startLine; i <= endLine; i++) { | ||
| 1012 | sourceLine = source.sourceLine(i); | ||
| 1013 | if (sourceLine == null) { | ||
| 1014 | break; | ||
| 1015 | } | ||
| 1016 | out.print(i); | ||
| 1017 | out.print("\t"); | ||
| 1018 | if (i == lineno) { | ||
| 1019 | out.print("=> "); | ||
| 1020 | } else { | ||
| 1021 | out.print(" "); | ||
| 1022 | } | ||
| 1023 | out.println(sourceLine); | ||
| 1024 | } | ||
| 1025 | out.show(); | ||
| 1026 | } | ||
| 1027 | } | ||
| 1028 | |||
| 1029 | // Command: use | ||
| 1030 | // Get or set the source file path list. | ||
| 1031 | |||
| 1032 | private void commandUse(StringTokenizer t) { | ||
| 1033 | if (!t.hasMoreTokens()) { | ||
| 1034 | out.println(sourceManager.getSourcePath().asString()); | ||
| 1035 | } else { | ||
| 1036 | //### Should throw exception for invalid path. | ||
| 1037 | //### E.g., vetoable property change. | ||
| 1038 | sourceManager.setSourcePath(new SearchPath(t.nextToken())); | ||
| 1039 | } | ||
| 1040 | } | ||
| 1041 | |||
| 1042 | // Command: sourcepath | ||
| 1043 | // Get or set the source file path list. (Alternate to 'use'.) | ||
| 1044 | |||
| 1045 | private void commandSourcepath(StringTokenizer t) { | ||
| 1046 | if (!t.hasMoreTokens()) { | ||
| 1047 | out.println(sourceManager.getSourcePath().asString()); | ||
| 1048 | } else { | ||
| 1049 | //### Should throw exception for invalid path. | ||
| 1050 | //### E.g., vetoable property change. | ||
| 1051 | sourceManager.setSourcePath(new SearchPath(t.nextToken())); | ||
| 1052 | } | ||
| 1053 | } | ||
| 1054 | |||
| 1055 | // Command: classpath | ||
| 1056 | // Get or set the class file path list. | ||
| 1057 | |||
| 1058 | private void commandClasspath(StringTokenizer t) { | ||
| 1059 | if (!t.hasMoreTokens()) { | ||
| 1060 | out.println(classManager.getClassPath().asString()); | ||
| 1061 | } else { | ||
| 1062 | //### Should throw exception for invalid path. | ||
| 1063 | //### E.g., vetoable property change. | ||
| 1064 | classManager.setClassPath(new SearchPath(t.nextToken())); | ||
| 1065 | } | ||
| 1066 | } | ||
| 1067 | |||
| 1068 | // Command: view | ||
| 1069 | // Display source for source file or class. | ||
| 1070 | |||
| 1071 | private void commandView(StringTokenizer t) throws NoSessionException { | ||
| 1072 | if (!t.hasMoreTokens()) { | ||
| 1073 | env.error("Argument required"); | ||
| 1074 | } else { | ||
| 1075 | String name = t.nextToken(); | ||
| 1076 | if (name.endsWith(".java") || | ||
| 1077 | name.indexOf(File.separatorChar) >= 0) { | ||
| 1078 | env.viewSource(name); | ||
| 1079 | } else { | ||
| 1080 | //### JDI crashes taking line number for class. | ||
| 1081 | /***** | ||
| 1082 | ReferenceType cls = findClass(name); | ||
| 1083 | if (cls != null) { | ||
| 1084 | env.viewLocation(cls.location()); | ||
| 1085 | } else { | ||
| 1086 | env.failure("No such class"); | ||
| 1087 | } | ||
| 1088 | *****/ | ||
| 1089 | String fileName = name.replace('.', File.separatorChar) + ".java"; | ||
| 1090 | env.viewSource(fileName); | ||
| 1091 | } | ||
| 1092 | } | ||
| 1093 | } | ||
| 1094 | |||
| 1095 | // Command: locals | ||
| 1096 | // Print all local variables in current stack frame. | ||
| 1097 | |||
| 1098 | private void commandLocals() throws NoSessionException { | ||
| 1099 | ThreadReference current = context.getCurrentThread(); | ||
| 1100 | if (current == null) { | ||
| 1101 | env.failure("No default thread specified: " + | ||
| 1102 | "use the \"thread\" command first."); | ||
| 1103 | return; | ||
| 1104 | } | ||
| 1105 | StackFrame frame; | ||
| 1106 | try { | ||
| 1107 | frame = context.getCurrentFrame(current); | ||
| 1108 | if (frame == null) { | ||
| 1109 | env.failure("Thread has not yet created any stack frames."); | ||
| 1110 | return; | ||
| 1111 | } | ||
| 1112 | } catch (VMNotInterruptedException e) { | ||
| 1113 | env.failure("Target VM must be in interrupted state."); | ||
| 1114 | return; | ||
| 1115 | } | ||
| 1116 | |||
| 1117 | List<LocalVariable> vars; | ||
| 1118 | try { | ||
| 1119 | vars = frame.visibleVariables(); | ||
| 1120 | if (vars == null || vars.size() == 0) { | ||
| 1121 | env.failure("No local variables"); | ||
| 1122 | return; | ||
| 1123 | } | ||
| 1124 | } catch (AbsentInformationException e) { | ||
| 1125 | env.failure("Local variable information not available." + | ||
| 1126 | " Compile with -g to generate variable information"); | ||
| 1127 | return; | ||
| 1128 | } | ||
| 1129 | |||
| 1130 | OutputSink out = env.getOutputSink(); | ||
| 1131 | out.println("Method arguments:"); | ||
| 1132 | for (LocalVariable var : vars) { | ||
| 1133 | if (var.isArgument()) { | ||
| 1134 | printVar(out, var, frame); | ||
| 1135 | } | ||
| 1136 | } | ||
| 1137 | out.println("Local variables:"); | ||
| 1138 | for (LocalVariable var : vars) { | ||
| 1139 | if (!var.isArgument()) { | ||
| 1140 | printVar(out, var, frame); | ||
| 1141 | } | ||
| 1142 | } | ||
| 1143 | out.show(); | ||
| 1144 | return; | ||
| 1145 | } | ||
| 1146 | |||
| 1147 | /** | ||
| 1148 | * Command: monitor | ||
| 1149 | * Monitor an expression | ||
| 1150 | */ | ||
| 1151 | private void commandMonitor(StringTokenizer t) throws NoSessionException { | ||
| 1152 | if (!t.hasMoreTokens()) { | ||
| 1153 | env.error("Argument required"); | ||
| 1154 | } else { | ||
| 1155 | env.getMonitorListModel().add(t.nextToken("")); | ||
| 1156 | } | ||
| 1157 | } | ||
| 1158 | |||
| 1159 | /** | ||
| 1160 | * Command: unmonitor | ||
| 1161 | * Unmonitor an expression | ||
| 1162 | */ | ||
| 1163 | private void commandUnmonitor(StringTokenizer t) throws NoSessionException { | ||
| 1164 | if (!t.hasMoreTokens()) { | ||
| 1165 | env.error("Argument required"); | ||
| 1166 | } else { | ||
| 1167 | env.getMonitorListModel().remove(t.nextToken("")); | ||
| 1168 | } | ||
| 1169 | } | ||
| 1170 | |||
| 1171 | // Print a stack variable. | ||
| 1172 | |||
| 1173 | private void printVar(OutputSink out, LocalVariable var, StackFrame frame) { | ||
| 1174 | out.print(" " + var.name()); | ||
| 1175 | if (var.isVisible(frame)) { | ||
| 1176 | Value val = frame.getValue(var); | ||
| 1177 | out.println(" = " + val.toString()); | ||
| 1178 | } else { | ||
| 1179 | out.println(" is not in scope"); | ||
| 1180 | } | ||
| 1181 | } | ||
| 1182 | |||
| 1183 | // Command: print | ||
| 1184 | // Evaluate an expression. | ||
| 1185 | |||
| 1186 | private void commandPrint(StringTokenizer t, boolean dumpObject) throws NoSessionException { | ||
| 1187 | if (!t.hasMoreTokens()) { | ||
| 1188 | //### Probably confused if expresion contains whitespace. | ||
| 1189 | env.error("No expression specified."); | ||
| 1190 | return; | ||
| 1191 | } | ||
| 1192 | ThreadReference current = context.getCurrentThread(); | ||
| 1193 | if (current == null) { | ||
| 1194 | env.failure("No default thread specified: " + | ||
| 1195 | "use the \"thread\" command first."); | ||
| 1196 | return; | ||
| 1197 | } | ||
| 1198 | StackFrame frame; | ||
| 1199 | try { | ||
| 1200 | frame = context.getCurrentFrame(current); | ||
| 1201 | if (frame == null) { | ||
| 1202 | env.failure("Thread has not yet created any stack frames."); | ||
| 1203 | return; | ||
| 1204 | } | ||
| 1205 | } catch (VMNotInterruptedException e) { | ||
| 1206 | env.failure("Target VM must be in interrupted state."); | ||
| 1207 | return; | ||
| 1208 | } | ||
| 1209 | while (t.hasMoreTokens()) { | ||
| 1210 | String expr = t.nextToken(""); | ||
| 1211 | Value val = null; | ||
| 1212 | try { | ||
| 1213 | val = runtime.evaluate(frame, expr); | ||
| 1214 | } catch(Exception e) { | ||
| 1215 | env.error("Exception: " + e); | ||
| 1216 | //### Fix this! | ||
| 1217 | } | ||
| 1218 | if (val == null) { | ||
| 1219 | return; // Error message already printed | ||
| 1220 | } | ||
| 1221 | OutputSink out = env.getOutputSink(); | ||
| 1222 | if (dumpObject && (val instanceof ObjectReference) && | ||
| 1223 | !(val instanceof StringReference)) { | ||
| 1224 | ObjectReference obj = (ObjectReference)val; | ||
| 1225 | ReferenceType refType = obj.referenceType(); | ||
| 1226 | out.println(expr + " = " + val.toString() + " {"); | ||
| 1227 | dump(out, obj, refType, refType); | ||
| 1228 | out.println("}"); | ||
| 1229 | } else { | ||
| 1230 | out.println(expr + " = " + val.toString()); | ||
| 1231 | } | ||
| 1232 | out.show(); | ||
| 1233 | } | ||
| 1234 | } | ||
| 1235 | |||
| 1236 | private void dump(OutputSink out, | ||
| 1237 | ObjectReference obj, ReferenceType refType, | ||
| 1238 | ReferenceType refTypeBase) { | ||
| 1239 | for (Field field : refType.fields()) { | ||
| 1240 | out.print(" "); | ||
| 1241 | if (!refType.equals(refTypeBase)) { | ||
| 1242 | out.print(refType.name() + "."); | ||
| 1243 | } | ||
| 1244 | out.print(field.name() + ": "); | ||
| 1245 | Object o = obj.getValue(field); | ||
| 1246 | out.println((o == null) ? "null" : o.toString()); // Bug ID 4374471 | ||
| 1247 | } | ||
| 1248 | if (refType instanceof ClassType) { | ||
| 1249 | ClassType sup = ((ClassType)refType).superclass(); | ||
| 1250 | if (sup != null) { | ||
| 1251 | dump(out, obj, sup, refTypeBase); | ||
| 1252 | } | ||
| 1253 | } else if (refType instanceof InterfaceType) { | ||
| 1254 | for (InterfaceType sup : ((InterfaceType)refType).superinterfaces()) { | ||
| 1255 | dump(out, obj, sup, refTypeBase); | ||
| 1256 | } | ||
| 1257 | } | ||
| 1258 | } | ||
| 1259 | |||
| 1260 | /* | ||
| 1261 | * Display help message. | ||
| 1262 | */ | ||
| 1263 | |||
| 1264 | private void help() { | ||
| 1265 | out.println("** command list **"); | ||
| 1266 | out.println("threads [threadgroup] -- list threads"); | ||
| 1267 | out.println("thread <thread id> -- set default thread"); | ||
| 1268 | out.println("suspend [thread id(s)] -- suspend threads (default: all)"); | ||
| 1269 | out.println("resume [thread id(s)] -- resume threads (default: all)"); | ||
| 1270 | out.println("where [thread id] | all -- dump a thread's stack"); | ||
| 1271 | out.println("wherei [thread id] | all -- dump a thread's stack, with pc info"); | ||
| 1272 | out.println("threadgroups -- list threadgroups"); | ||
| 1273 | out.println("threadgroup <name> -- set current threadgroup\n"); | ||
| 1274 | // out.println("print <expression> -- print value of expression"); | ||
| 1275 | out.println("dump <expression> -- print all object information\n"); | ||
| 1276 | // out.println("eval <expression> -- evaluate expression (same as print)"); | ||
| 1277 | out.println("locals -- print all local variables in current stack frame\n"); | ||
| 1278 | out.println("classes -- list currently known classes"); | ||
| 1279 | out.println("methods <class id> -- list a class's methods\n"); | ||
| 1280 | out.println("stop [in] <class id>.<method>[(argument_type,...)] -- set a breakpoint in a method"); | ||
| 1281 | out.println("stop [at] <class id>:<line> -- set a breakpoint at a line"); | ||
| 1282 | out.println("up [n frames] -- move up a thread's stack"); | ||
| 1283 | out.println("down [n frames] -- move down a thread's stack"); | ||
| 1284 | out.println("frame <frame-id> -- to a frame"); | ||
| 1285 | out.println("clear <class id>.<method>[(argument_type,...)] -- clear a breakpoint in a method"); | ||
| 1286 | out.println("clear <class id>:<line> -- clear a breakpoint at a line"); | ||
| 1287 | out.println("clear -- list breakpoints"); | ||
| 1288 | out.println("step -- execute current line"); | ||
| 1289 | out.println("step up -- execute until the current method returns to its caller"); | ||
| 1290 | out.println("stepi -- execute current instruction"); | ||
| 1291 | out.println("next -- step one line (step OVER calls)"); | ||
| 1292 | out.println("nexti -- step one instruction (step OVER calls)"); | ||
| 1293 | out.println("cont -- continue execution from breakpoint\n"); | ||
| 1294 | // out.println("catch <class id> -- break for the specified exception"); | ||
| 1295 | // out.println("ignore <class id> -- ignore when the specified exception\n"); | ||
| 1296 | out.println("view classname|filename -- display source file"); | ||
| 1297 | out.println("list [line number|method] -- print source code context at line or method"); | ||
| 1298 | out.println("use <source file path> -- display or change the source path\n"); | ||
| 1299 | //### new | ||
| 1300 | out.println("sourcepath <source file path> -- display or change the source path\n"); | ||
| 1301 | //### new | ||
| 1302 | out.println("classpath <class file path> -- display or change the class path\n"); | ||
| 1303 | out.println("monitor <expression> -- evaluate an expression each time the program stops\n"); | ||
| 1304 | out.println("unmonitor <monitor#> -- delete a monitor\n"); | ||
| 1305 | out.println("read <filename> -- read and execute a command file\n"); | ||
| 1306 | // out.println("memory -- report memory usage"); | ||
| 1307 | // out.println("gc -- free unused objects\n"); | ||
| 1308 | out.println("run <class> [args] -- start execution of a Java class"); | ||
| 1309 | out.println("run -- re-execute last class run"); | ||
| 1310 | out.println("load <class> [args] -- start execution of a Java class, initially suspended"); | ||
| 1311 | out.println("load -- re-execute last class run, initially suspended"); | ||
| 1312 | out.println("attach <portname> -- debug existing process\n"); | ||
| 1313 | out.println("detach -- detach from debuggee process\n"); | ||
| 1314 | out.println("kill <thread(group)> -- kill a thread or threadgroup\n"); | ||
| 1315 | out.println("!! -- repeat last command"); | ||
| 1316 | out.println("help (or ?) -- list commands"); | ||
| 1317 | out.println("exit (or quit) -- exit debugger"); | ||
| 1318 | } | ||
| 1319 | |||
| 1320 | /* | ||
| 1321 | * Execute a command. | ||
| 1322 | */ | ||
| 1323 | |||
| 1324 | public void executeCommand(String command) { | ||
| 1325 | //### Treatment of 'out' here is dirty... | ||
| 1326 | out = env.getOutputSink(); | ||
| 1327 | if (echo) { | ||
| 1328 | out.println(">>> " + command); | ||
| 1329 | } | ||
| 1330 | StringTokenizer t = new StringTokenizer(command); | ||
| 1331 | try { | ||
| 1332 | String cmd; | ||
| 1333 | if (t.hasMoreTokens()) { | ||
| 1334 | cmd = t.nextToken().toLowerCase(); | ||
| 1335 | lastCommand = cmd; | ||
| 1336 | } else { | ||
| 1337 | cmd = lastCommand; | ||
| 1338 | } | ||
| 1339 | if (cmd.equals("print")) { | ||
| 1340 | commandPrint(t, false); | ||
| 1341 | } else if (cmd.equals("eval")) { | ||
| 1342 | commandPrint(t, false); | ||
| 1343 | } else if (cmd.equals("dump")) { | ||
| 1344 | commandPrint(t, true); | ||
| 1345 | } else if (cmd.equals("locals")) { | ||
| 1346 | commandLocals(); | ||
| 1347 | } else if (cmd.equals("classes")) { | ||
| 1348 | commandClasses(); | ||
| 1349 | } else if (cmd.equals("methods")) { | ||
| 1350 | commandMethods(t); | ||
| 1351 | } else if (cmd.equals("threads")) { | ||
| 1352 | commandThreads(t); | ||
| 1353 | } else if (cmd.equals("thread")) { | ||
| 1354 | commandThread(t); | ||
| 1355 | } else if (cmd.equals("suspend")) { | ||
| 1356 | commandSuspend(t); | ||
| 1357 | } else if (cmd.equals("resume")) { | ||
| 1358 | commandResume(t); | ||
| 1359 | } else if (cmd.equals("cont")) { | ||
| 1360 | commandCont(); | ||
| 1361 | } else if (cmd.equals("threadgroups")) { | ||
| 1362 | commandThreadGroups(); | ||
| 1363 | } else if (cmd.equals("threadgroup")) { | ||
| 1364 | commandThreadGroup(t); | ||
| 1365 | } else if (cmd.equals("run")) { | ||
| 1366 | commandRun(t); | ||
| 1367 | } else if (cmd.equals("load")) { | ||
| 1368 | commandLoad(t); | ||
| 1369 | } else if (cmd.equals("connect")) { | ||
| 1370 | commandConnect(t); | ||
| 1371 | } else if (cmd.equals("attach")) { | ||
| 1372 | commandAttach(t); | ||
| 1373 | } else if (cmd.equals("detach")) { | ||
| 1374 | commandDetach(t); | ||
| 1375 | } else if (cmd.equals("interrupt")) { | ||
| 1376 | commandInterrupt(t); | ||
| 1377 | //### Not implemented. | ||
| 1378 | // } else if (cmd.equals("catch")) { | ||
| 1379 | // commandCatchException(t); | ||
| 1380 | //### Not implemented. | ||
| 1381 | // } else if (cmd.equals("ignore")) { | ||
| 1382 | // commandIgnoreException(t); | ||
| 1383 | } else if (cmd.equals("step")) { | ||
| 1384 | commandStep(t); | ||
| 1385 | } else if (cmd.equals("stepi")) { | ||
| 1386 | commandStepi(); | ||
| 1387 | } else if (cmd.equals("next")) { | ||
| 1388 | commandNext(); | ||
| 1389 | } else if (cmd.equals("nexti")) { | ||
| 1390 | commandNexti(); | ||
| 1391 | } else if (cmd.equals("kill")) { | ||
| 1392 | commandKill(t); | ||
| 1393 | } else if (cmd.equals("where")) { | ||
| 1394 | commandWhere(t, false); | ||
| 1395 | } else if (cmd.equals("wherei")) { | ||
| 1396 | commandWhere(t, true); | ||
| 1397 | } else if (cmd.equals("up")) { | ||
| 1398 | commandUp(t); | ||
| 1399 | } else if (cmd.equals("down")) { | ||
| 1400 | commandDown(t); | ||
| 1401 | } else if (cmd.equals("frame")) { | ||
| 1402 | commandFrame(t); | ||
| 1403 | } else if (cmd.equals("stop")) { | ||
| 1404 | commandStop(t); | ||
| 1405 | } else if (cmd.equals("clear")) { | ||
| 1406 | commandClear(t); | ||
| 1407 | } else if (cmd.equals("list")) { | ||
| 1408 | commandList(t); | ||
| 1409 | } else if (cmd.equals("use")) { | ||
| 1410 | commandUse(t); | ||
| 1411 | } else if (cmd.equals("sourcepath")) { | ||
| 1412 | commandSourcepath(t); | ||
| 1413 | } else if (cmd.equals("classpath")) { | ||
| 1414 | commandClasspath(t); | ||
| 1415 | } else if (cmd.equals("monitor")) { | ||
| 1416 | commandMonitor(t); | ||
| 1417 | } else if (cmd.equals("unmonitor")) { | ||
| 1418 | commandUnmonitor(t); | ||
| 1419 | } else if (cmd.equals("view")) { | ||
| 1420 | commandView(t); | ||
| 1421 | // } else if (cmd.equals("read")) { | ||
| 1422 | // readCommand(t); | ||
| 1423 | } else if (cmd.equals("help") || cmd.equals("?")) { | ||
| 1424 | help(); | ||
| 1425 | } else if (cmd.equals("quit") || cmd.equals("exit")) { | ||
| 1426 | try { | ||
| 1427 | runtime.detach(); | ||
| 1428 | } catch (NoSessionException e) { | ||
| 1429 | // ignore | ||
| 1430 | } | ||
| 1431 | env.terminate(); | ||
| 1432 | } else { | ||
| 1433 | //### Dubious repeat-count feature inherited from 'jdb' | ||
| 1434 | if (t.hasMoreTokens()) { | ||
| 1435 | try { | ||
| 1436 | int repeat = Integer.parseInt(cmd); | ||
| 1437 | String subcom = t.nextToken(""); | ||
| 1438 | while (repeat-- > 0) { | ||
| 1439 | executeCommand(subcom); | ||
| 1440 | } | ||
| 1441 | return; | ||
| 1442 | } catch (NumberFormatException exc) { | ||
| 1443 | } | ||
| 1444 | } | ||
| 1445 | out.println("huh? Try help..."); | ||
| 1446 | out.flush(); | ||
| 1447 | } | ||
| 1448 | } catch (NoSessionException e) { | ||
| 1449 | out.println("There is no currently attached VM session."); | ||
| 1450 | out.flush(); | ||
| 1451 | } catch (Exception e) { | ||
| 1452 | out.println("Internal exception: " + e.toString()); | ||
| 1453 | out.flush(); | ||
| 1454 | System.out.println("JDB internal exception: " + e.toString()); | ||
| 1455 | e.printStackTrace(); | ||
| 1456 | } | ||
| 1457 | out.show(); | ||
| 1458 | } | ||
| 1459 | } | ||