Start.java revision 4079:bef1cba2d0d9
1/* 2 * Copyright (c) 1997, 2017, 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 26package jdk.javadoc.internal.tool; 27 28import java.io.File; 29import java.io.IOException; 30import java.io.PrintWriter; 31import java.nio.file.Path; 32import java.text.BreakIterator; 33import java.text.Collator; 34import java.util.ArrayList; 35import java.util.Arrays; 36import java.util.Collection; 37import java.util.Collections; 38import java.util.Comparator; 39import java.util.List; 40import java.util.Locale; 41import java.util.Objects; 42import java.util.Set; 43import java.util.stream.Collectors; 44import java.util.stream.Stream; 45 46import javax.tools.JavaFileManager; 47import javax.tools.JavaFileObject; 48import javax.tools.StandardJavaFileManager; 49import javax.tools.StandardLocation; 50 51import com.sun.tools.javac.api.JavacTrees; 52import com.sun.tools.javac.file.BaseFileManager; 53import com.sun.tools.javac.file.JavacFileManager; 54import com.sun.tools.javac.main.Arguments; 55import com.sun.tools.javac.main.CommandLine; 56import com.sun.tools.javac.main.OptionHelper; 57import com.sun.tools.javac.main.OptionHelper.GrumpyHelper; 58import com.sun.tools.javac.platform.PlatformDescription; 59import com.sun.tools.javac.platform.PlatformUtils; 60import com.sun.tools.javac.util.ClientCodeException; 61import com.sun.tools.javac.util.Context; 62import com.sun.tools.javac.util.Log; 63import com.sun.tools.javac.util.Log.WriterKind; 64import com.sun.tools.javac.util.Options; 65import com.sun.tools.javac.util.StringUtils; 66 67import jdk.javadoc.doclet.Doclet; 68import jdk.javadoc.doclet.Doclet.Option; 69import jdk.javadoc.doclet.DocletEnvironment; 70import jdk.javadoc.internal.tool.Main.Result; 71 72import static javax.tools.DocumentationTool.Location.*; 73 74import static com.sun.tools.javac.main.Option.*; 75import static jdk.javadoc.internal.tool.Main.Result.*; 76 77/** 78 * Main program of Javadoc. 79 * Previously named "Main". 80 * 81 * <p><b>This is NOT part of any supported API. 82 * If you write code that depends on this, you do so at your own risk. 83 * This code and its internal interfaces are subject to change or 84 * deletion without notice.</b> 85 * 86 * @author Robert Field 87 * @author Neal Gafter (rewrite) 88 */ 89public class Start extends ToolOption.Helper { 90 91 @SuppressWarnings("deprecation") 92 private static final Class<?> OldStdDoclet = 93 com.sun.tools.doclets.standard.Standard.class; 94 95 private static final Class<?> StdDoclet = 96 jdk.javadoc.doclet.StandardDoclet.class; 97 /** Context for this invocation. */ 98 private final Context context; 99 100 private static final String ProgramName = "javadoc"; 101 102 private Messager messager; 103 104 private final String docletName; 105 106 private final ClassLoader classLoader; 107 108 private Class<?> docletClass; 109 110 private Doclet doclet; 111 112 // used to determine the locale for the messager 113 private Locale locale; 114 115 116 /** 117 * In API mode, exceptions thrown while calling the doclet are 118 * propagated using ClientCodeException. 119 */ 120 private boolean apiMode; 121 122 private JavaFileManager fileManager; 123 124 Start() { 125 this(null, null, null, null, null, null); 126 } 127 128 Start(PrintWriter outWriter, PrintWriter errWriter) { 129 this(null, null, outWriter, errWriter, null, null); 130 } 131 132 Start(Context context, String programName, 133 PrintWriter outWriter, PrintWriter errWriter, 134 String docletName, ClassLoader classLoader) { 135 this.context = context == null ? new Context() : context; 136 String pname = programName == null ? ProgramName : programName; 137 this.messager = (outWriter == null && errWriter == null) 138 ? new Messager(this.context, pname) 139 : new Messager(this.context, pname, outWriter, errWriter); 140 this.docletName = docletName; 141 this.classLoader = classLoader; 142 this.docletClass = null; 143 this.locale = Locale.getDefault(); 144 } 145 146 public Start(Context context) { 147 this.docletClass = null; 148 this.context = Objects.requireNonNull(context); 149 this.apiMode = true; 150 this.docletName = null; 151 this.classLoader = null; 152 this.locale = Locale.getDefault(); 153 } 154 155 void initMessager() { 156 if (!apiMode) 157 return; 158 if (messager == null) { 159 Log log = context.get(Log.logKey); 160 if (log instanceof Messager) { 161 messager = (Messager) log; 162 } else { 163 PrintWriter out = context.get(Log.errKey); 164 messager = (out == null) 165 ? new Messager(context, ProgramName) 166 : new Messager(context, ProgramName, out, out); 167 } 168 } 169 } 170 171 /** 172 * Usage 173 */ 174 @Override 175 void usage() { 176 usage("main.usage", OptionKind.STANDARD, "main.usage.foot"); 177 } 178 179 @Override 180 void Xusage() { 181 usage("main.Xusage", OptionKind.EXTENDED, "main.Xusage.foot"); 182 } 183 184 private void usage(String headerKey, OptionKind kind, String footerKey) { 185 messager.notice(headerKey); 186 showToolOptions(kind); 187 188 // let doclet print usage information 189 if (docletClass != null) { 190 String name = doclet.getName(); 191 messager.notice("main.doclet.usage.header", name); 192 showDocletOptions(kind == OptionKind.EXTENDED 193 ? Option.Kind.EXTENDED 194 : Option.Kind.STANDARD); 195 } 196 if (footerKey != null) 197 messager.notice(footerKey); 198 } 199 200 void showToolOptions(OptionKind kind) { 201 Comparator<ToolOption> comp = new Comparator<ToolOption>() { 202 final Collator collator = Collator.getInstance(Locale.US); 203 { collator.setStrength(Collator.PRIMARY); } 204 205 @Override 206 public int compare(ToolOption o1, ToolOption o2) { 207 return collator.compare(o1.primaryName, o2.primaryName); 208 } 209 }; 210 211 Stream.of(ToolOption.values()) 212 .filter(opt -> opt.kind == kind) 213 .sorted(comp) 214 .forEach(this::showToolOption); 215 } 216 217 void showToolOption(ToolOption option) { 218 List<String> names = option.getNames(); 219 String parameters; 220 if (option.hasArg || option.primaryName.endsWith(":")) { 221 String sep = (option == ToolOption.J) || option.primaryName.endsWith(":") ? "" : " "; 222 parameters = sep + option.getParameters(messager); 223 } else { 224 parameters = ""; 225 } 226 String description = option.getDescription(messager); 227 showUsage(names, parameters, description); 228 } 229 230 void showDocletOptions(Option.Kind kind) { 231 Comparator<Doclet.Option> comp = new Comparator<Doclet.Option>() { 232 final Collator collator = Collator.getInstance(Locale.US); 233 { collator.setStrength(Collator.PRIMARY); } 234 235 @Override 236 public int compare(Doclet.Option o1, Doclet.Option o2) { 237 return collator.compare(o1.getNames().get(0), o2.getNames().get(0)); 238 } 239 }; 240 241 doclet.getSupportedOptions().stream() 242 .filter(opt -> opt.getKind() == kind) 243 .sorted(comp) 244 .forEach(this::showDocletOption); 245 } 246 247 void showDocletOption(Doclet.Option option) { 248 List<String> names = option.getNames(); 249 String parameters; 250 String optname = names.get(0); 251 if (option.getArgumentCount() > 0 || optname.endsWith(":")) { 252 String sep = optname.endsWith(":") ? "" : " "; 253 parameters = sep + option.getParameters(); 254 } else { 255 parameters = ""; 256 } 257 String description = option.getDescription(); 258 showUsage(names, parameters, description); 259 } 260 261 // The following constants are intended to format the output to 262 // be similar to that of the java launcher: i.e. "java -help". 263 264 /** The indent for the option synopsis. */ 265 private static final String SMALL_INDENT = " "; 266 /** The automatic indent for the description. */ 267 private static final String LARGE_INDENT = " "; 268 /** The space allowed for the synopsis, if the description is to be shown on the same line. */ 269 private static final int DEFAULT_SYNOPSIS_WIDTH = 13; 270 /** The nominal maximum line length, when seeing if text will fit on a line. */ 271 private static final int DEFAULT_MAX_LINE_LENGTH = 80; 272 /** The format for a single-line help entry. */ 273 private static final String COMPACT_FORMAT = SMALL_INDENT + "%-" + DEFAULT_SYNOPSIS_WIDTH + "s %s"; 274 275 void showUsage(List<String> names, String parameters, String description) { 276 String synopses = names.stream() 277 .map(s -> s + parameters) 278 .collect(Collectors.joining(", ")); 279 // If option synopses and description fit on a single line of reasonable length, 280 // display using COMPACT_FORMAT 281 if (synopses.length() < DEFAULT_SYNOPSIS_WIDTH 282 && !description.contains("\n") 283 && (SMALL_INDENT.length() + DEFAULT_SYNOPSIS_WIDTH + 1 + description.length() <= DEFAULT_MAX_LINE_LENGTH)) { 284 messager.printNotice(String.format(COMPACT_FORMAT, synopses, description)); 285 return; 286 } 287 288 // If option synopses fit on a single line of reasonable length, show that; 289 // otherwise, show 1 per line 290 if (synopses.length() <= DEFAULT_MAX_LINE_LENGTH) { 291 messager.printNotice(SMALL_INDENT + synopses); 292 } else { 293 for (String name: names) { 294 messager.printNotice(SMALL_INDENT + name + parameters); 295 } 296 } 297 298 // Finally, show the description 299 messager.printNotice(LARGE_INDENT + description.replace("\n", "\n" + LARGE_INDENT)); 300 } 301 302 303 /** 304 * Main program - external wrapper. In order to maintain backward 305 * CLI compatibility, we dispatch to the old tool or the old doclet's 306 * Start mechanism, based on the options present on the command line 307 * with the following precedence: 308 * 1. presence of -Xold, dispatch to old tool 309 * 2. doclet variant, if old, dispatch to old Start 310 * 3. taglet variant, if old, dispatch to old Start 311 * 312 * Thus the presence of -Xold switches the tool, soon after command files 313 * if any, are expanded, this is performed here, noting that the messager 314 * is available at this point in time. 315 * The doclet/taglet tests are performed in the begin method, further on, 316 * this is to minimize argument processing and most importantly the impact 317 * of class loader creation, needed to detect the doclet/taglet class variants. 318 */ 319 @SuppressWarnings("deprecation") 320 Result begin(String... argv) { 321 // Preprocess @file arguments 322 try { 323 argv = CommandLine.parse(argv); 324 } catch (IOException e) { 325 error("main.cant.read", e.getMessage()); 326 return ERROR; 327 } 328 329 if (argv.length > 0 && "-Xold".equals(argv[0])) { 330 warn("main.legacy_api"); 331 String[] nargv = Arrays.copyOfRange(argv, 1, argv.length); 332 int rc = com.sun.tools.javadoc.Main.execute( 333 messager.programName, 334 messager.getWriter(WriterKind.ERROR), 335 messager.getWriter(WriterKind.WARNING), 336 messager.getWriter(WriterKind.NOTICE), 337 "com.sun.tools.doclets.standard.Standard", 338 nargv); 339 return (rc == 0) ? OK : ERROR; 340 } 341 return begin(Arrays.asList(argv), Collections.emptySet()); 342 } 343 344 // Called by 199 API. 345 public boolean begin(Class<?> docletClass, 346 Iterable<String> options, 347 Iterable<? extends JavaFileObject> fileObjects) { 348 this.docletClass = docletClass; 349 List<String> opts = new ArrayList<>(); 350 for (String opt: options) 351 opts.add(opt); 352 353 return begin(opts, fileObjects).isOK(); 354 } 355 356 @SuppressWarnings("deprecation") 357 private Result begin(List<String> options, Iterable<? extends JavaFileObject> fileObjects) { 358 fileManager = context.get(JavaFileManager.class); 359 if (fileManager == null) { 360 JavacFileManager.preRegister(context); 361 fileManager = context.get(JavaFileManager.class); 362 if (fileManager instanceof BaseFileManager) { 363 ((BaseFileManager) fileManager).autoClose = true; 364 } 365 } 366 367 // locale, doclet and maybe taglet, needs to be determined first 368 try { 369 docletClass = preprocess(fileManager, options); 370 } catch (ToolException te) { 371 if (!te.result.isOK()) { 372 if (te.message != null) { 373 messager.printError(te.message); 374 } 375 Throwable t = te.getCause(); 376 dumpStack(t == null ? te : t); 377 } 378 return te.result; 379 } catch (OptionException oe) { 380 if (oe.message != null) { 381 messager.printError(oe.message); 382 } 383 oe.m.run(); 384 Throwable t = oe.getCause(); 385 dumpStack(t == null ? oe : t); 386 return oe.result; 387 } 388 if (jdk.javadoc.doclet.Doclet.class.isAssignableFrom(docletClass)) { 389 // no need to dispatch to old, safe to init now 390 initMessager(); 391 messager.setLocale(locale); 392 try { 393 Object o = docletClass.getConstructor().newInstance(); 394 doclet = (Doclet) o; 395 } catch (ReflectiveOperationException exc) { 396 if (apiMode) { 397 throw new ClientCodeException(exc); 398 } 399 error("main.could_not_instantiate_class", docletClass); 400 return ERROR; 401 } 402 } else { 403 if (apiMode) { 404 com.sun.tools.javadoc.main.Start ostart 405 = new com.sun.tools.javadoc.main.Start(context); 406 return ostart.begin(docletClass, options, fileObjects) 407 ? OK 408 : ERROR; 409 } 410 warn("main.legacy_api"); 411 String[] array = options.toArray(new String[options.size()]); 412 int rc = com.sun.tools.javadoc.Main.execute( 413 messager.programName, 414 messager.getWriter(WriterKind.ERROR), 415 messager.getWriter(WriterKind.WARNING), 416 messager.getWriter(WriterKind.NOTICE), 417 "com.sun.tools.doclets.standard.Standard", 418 array); 419 return (rc == 0) ? OK : ERROR; 420 } 421 422 Result result = OK; 423 try { 424 result = parseAndExecute(options, fileObjects); 425 } catch (com.sun.tools.javac.main.Option.InvalidValueException e) { 426 messager.printError(e.getMessage()); 427 Throwable t = e.getCause(); 428 dumpStack(t == null ? e : t); 429 return ERROR; 430 } catch (OptionException toe) { 431 if (toe.message != null) 432 messager.printError(toe.message); 433 434 toe.m.run(); 435 Throwable t = toe.getCause(); 436 dumpStack(t == null ? toe : t); 437 return toe.result; 438 } catch (ToolException exc) { 439 if (exc.message != null) { 440 messager.printError(exc.message); 441 } 442 Throwable t = exc.getCause(); 443 if (result == ABNORMAL) { 444 reportInternalError(t == null ? exc : t); 445 } else { 446 dumpStack(t == null ? exc : t); 447 } 448 return exc.result; 449 } catch (OutOfMemoryError ee) { 450 error("main.out.of.memory"); 451 result = SYSERR; 452 dumpStack(ee); 453 } catch (ClientCodeException e) { 454 // simply rethrow these exceptions, to be caught and handled by JavadocTaskImpl 455 throw e; 456 } catch (Error | Exception ee) { 457 error("main.fatal.error", ee); 458 reportInternalError(ee); 459 result = ABNORMAL; 460 } finally { 461 if (fileManager != null 462 && fileManager instanceof BaseFileManager 463 && ((BaseFileManager) fileManager).autoClose) { 464 try { 465 fileManager.close(); 466 } catch (IOException ignore) {} 467 } 468 boolean haveErrorWarnings = messager.hasErrors() 469 || (rejectWarnings && messager.hasWarnings()); 470 if (!result.isOK() && !haveErrorWarnings) { 471 // the doclet failed, but nothing reported, flag it!. 472 error("main.unknown.error"); 473 } 474 if (haveErrorWarnings && result.isOK()) { 475 result = ERROR; 476 } 477 messager.printErrorWarningCounts(); 478 messager.flush(); 479 } 480 return result; 481 } 482 483 private void reportInternalError(Throwable t) { 484 messager.printErrorUsingKey("doclet.internal.report.bug"); 485 dumpStack(true, t); 486 } 487 488 private void dumpStack(Throwable t) { 489 dumpStack(false, t); 490 } 491 492 private void dumpStack(boolean enabled, Throwable t) { 493 if (t != null && (enabled || dumpOnError)) { 494 t.printStackTrace(System.err); 495 } 496 } 497 498 /** 499 * Main program - internal 500 */ 501 @SuppressWarnings("unchecked") 502 private Result parseAndExecute(List<String> argList, Iterable<? extends JavaFileObject> fileObjects) 503 throws ToolException, OptionException, com.sun.tools.javac.main.Option.InvalidValueException { 504 long tm = System.currentTimeMillis(); 505 506 List<String> javaNames = new ArrayList<>(); 507 508 compOpts = Options.instance(context); 509 510 // Make sure no obsolete source/target messages are reported 511 try { 512 com.sun.tools.javac.main.Option.XLINT_CUSTOM.process(getOptionHelper(), "-Xlint:-options"); 513 } catch (com.sun.tools.javac.main.Option.InvalidValueException ignore) { 514 } 515 516 Arguments arguments = Arguments.instance(context); 517 arguments.init(ProgramName); 518 arguments.allowEmpty(); 519 520 doclet.init(locale, messager); 521 parseArgs(argList, javaNames); 522 523 if (!arguments.handleReleaseOptions(extra -> true)) { 524 // Arguments does not always increase the error count in the 525 // case of errors, so increment the error count only if it has 526 // not been updated previously, preventing complaints by callers 527 if (!messager.hasErrors() && !messager.hasWarnings()) 528 messager.nerrors++; 529 return CMDERR; 530 } 531 532 if (!arguments.validate()) { 533 // Arguments does not always increase the error count in the 534 // case of errors, so increment the error count only if it has 535 // not been updated previously, preventing complaints by callers 536 if (!messager.hasErrors() && !messager.hasWarnings()) 537 messager.nerrors++; 538 return CMDERR; 539 } 540 541 if (fileManager instanceof BaseFileManager) { 542 ((BaseFileManager) fileManager).handleOptions(fileManagerOpts); 543 } 544 545 compOpts.notifyListeners(); 546 List<String> modules = (List<String>) jdtoolOpts.computeIfAbsent(ToolOption.MODULE, 547 s -> Collections.EMPTY_LIST); 548 549 if (modules.isEmpty()) { 550 List<String> subpkgs = (List<String>) jdtoolOpts.computeIfAbsent(ToolOption.SUBPACKAGES, 551 s -> Collections.EMPTY_LIST); 552 if (subpkgs.isEmpty()) { 553 if (javaNames.isEmpty() && isEmpty(fileObjects)) { 554 String text = messager.getText("main.No_modules_packages_or_classes_specified"); 555 throw new ToolException(CMDERR, text); 556 } 557 } 558 } 559 560 JavadocTool comp = JavadocTool.make0(context); 561 if (comp == null) return ABNORMAL; 562 563 DocletEnvironment docEnv = comp.getEnvironment(jdtoolOpts, 564 javaNames, 565 fileObjects); 566 567 // release resources 568 comp = null; 569 570 if (breakiterator || !locale.getLanguage().equals(Locale.ENGLISH.getLanguage())) { 571 JavacTrees trees = JavacTrees.instance(context); 572 trees.setBreakIterator(BreakIterator.getSentenceInstance(locale)); 573 } 574 // pass off control to the doclet 575 Result returnStatus = docEnv != null && doclet.run(docEnv) 576 ? OK 577 : ERROR; 578 579 // We're done. 580 if (compOpts.get("-verbose") != null) { 581 tm = System.currentTimeMillis() - tm; 582 messager.notice("main.done_in", Long.toString(tm)); 583 } 584 585 return returnStatus; 586 } 587 588 boolean matches(List<String> names, String arg) { 589 for (String name : names) { 590 if (StringUtils.toLowerCase(name).equals(StringUtils.toLowerCase(arg))) 591 return true; 592 } 593 return false; 594 } 595 596 boolean matches(Doclet.Option option, String arg) { 597 if (matches(option.getNames(), arg)) 598 return true; 599 int sep = arg.indexOf(':'); 600 String targ = arg.substring(0, sep + 1); 601 return matches(option.getNames(), targ); 602 } 603 604 Set<? extends Doclet.Option> docletOptions = null; 605 int handleDocletOptions(int idx, List<String> args, boolean isToolOption) 606 throws OptionException { 607 if (docletOptions == null) { 608 docletOptions = doclet.getSupportedOptions(); 609 } 610 String arg = args.get(idx); 611 String argBase, argVal; 612 if (arg.startsWith("--") && arg.contains("=")) { 613 int sep = arg.indexOf("="); 614 argBase = arg.substring(0, sep); 615 argVal = arg.substring(sep + 1); 616 } else { 617 argBase = arg; 618 argVal = null; 619 } 620 String text = null; 621 for (Doclet.Option opt : docletOptions) { 622 if (matches(opt, argBase)) { 623 if (argVal != null) { 624 switch (opt.getArgumentCount()) { 625 case 0: 626 text = messager.getText("main.unnecessary_arg_provided", argBase); 627 throw new OptionException(ERROR, this::usage, text); 628 case 1: 629 opt.process(arg, Arrays.asList(argVal)); 630 break; 631 default: 632 text = messager.getText("main.only_one_argument_with_equals", argBase); 633 throw new OptionException(ERROR, this::usage, text); 634 } 635 } else { 636 if (args.size() - idx -1 < opt.getArgumentCount()) { 637 text = messager.getText("main.requires_argument", arg); 638 throw new OptionException(ERROR, this::usage, text); 639 } 640 opt.process(arg, args.subList(idx + 1, args.size())); 641 idx += opt.getArgumentCount(); 642 } 643 return idx; 644 } 645 } 646 // check if arg is accepted by the tool before emitting error 647 if (!isToolOption) { 648 text = messager.getText("main.invalid_flag", arg); 649 throw new OptionException(ERROR, this::usage, text); 650 } 651 return idx; 652 } 653 654 private Class<?> preprocess(JavaFileManager jfm, 655 List<String> argv) throws ToolException, OptionException { 656 // doclet specifying arguments 657 String userDocletPath = null; 658 String userDocletName = null; 659 660 // taglet specifying arguments, since tagletpath is a doclet 661 // functionality, assume they are repeated and inspect all. 662 List<File> userTagletPath = new ArrayList<>(); 663 List<String> userTagletNames = new ArrayList<>(); 664 665 // Step 1: loop through the args, set locale early on, if found. 666 for (int i = 0 ; i < argv.size() ; i++) { 667 String arg = argv.get(i); 668 if (arg.equals(ToolOption.DUMPONERROR.primaryName)) { 669 dumpOnError = true; 670 } else if (arg.equals(ToolOption.LOCALE.primaryName)) { 671 checkOneArg(argv, i++); 672 String lname = argv.get(i); 673 locale = getLocale(lname); 674 } else if (arg.equals(ToolOption.DOCLET.primaryName)) { 675 checkOneArg(argv, i++); 676 if (userDocletName != null) { 677 if (apiMode) { 678 throw new IllegalArgumentException("More than one doclet specified (" + 679 userDocletName + " and " + argv.get(i) + ")."); 680 } 681 String text = messager.getText("main.more_than_one_doclet_specified_0_and_1", 682 userDocletName, argv.get(i)); 683 throw new ToolException(CMDERR, text); 684 } 685 if (docletName != null) { 686 if (apiMode) { 687 throw new IllegalArgumentException("More than one doclet specified (" + 688 docletName + " and " + argv.get(i) + ")."); 689 } 690 String text = messager.getText("main.more_than_one_doclet_specified_0_and_1", 691 docletName, argv.get(i)); 692 throw new ToolException(CMDERR, text); 693 } 694 userDocletName = argv.get(i); 695 } else if (arg.equals(ToolOption.DOCLETPATH.primaryName)) { 696 checkOneArg(argv, i++); 697 if (userDocletPath == null) { 698 userDocletPath = argv.get(i); 699 } else { 700 userDocletPath += File.pathSeparator + argv.get(i); 701 } 702 } else if ("-taglet".equals(arg)) { 703 userTagletNames.add(argv.get(i + 1)); 704 } else if ("-tagletpath".equals(arg)) { 705 for (String pathname : argv.get(i + 1).split(File.pathSeparator)) { 706 userTagletPath.add(new File(pathname)); 707 } 708 } 709 } 710 711 // Step 2: a doclet is provided, nothing more to do. 712 if (docletClass != null) { 713 return docletClass; 714 } 715 716 // Step 3: doclet name specified ? if so find a ClassLoader, 717 // and load it. 718 if (userDocletName != null) { 719 ClassLoader cl = classLoader; 720 if (cl == null) { 721 if (!fileManager.hasLocation(DOCLET_PATH)) { 722 List<File> paths = new ArrayList<>(); 723 if (userDocletPath != null) { 724 for (String pathname : userDocletPath.split(File.pathSeparator)) { 725 paths.add(new File(pathname)); 726 } 727 } 728 try { 729 ((StandardJavaFileManager)fileManager).setLocation(DOCLET_PATH, paths); 730 } catch (IOException ioe) { 731 if (apiMode) { 732 throw new IllegalArgumentException("Could not set location for " + 733 userDocletPath, ioe); 734 } 735 String text = messager.getText("main.doclet_could_not_set_location", 736 userDocletPath); 737 throw new ToolException(CMDERR, text, ioe); 738 } 739 } 740 cl = fileManager.getClassLoader(DOCLET_PATH); 741 if (cl == null) { 742 // despite doclet specified on cmdline no classloader found! 743 if (apiMode) { 744 throw new IllegalArgumentException("Could not obtain classloader to load " 745 + userDocletPath); 746 } 747 String text = messager.getText("main.doclet_no_classloader_found", 748 userDocletName); 749 throw new ToolException(CMDERR, text); 750 } 751 } 752 try { 753 Class<?> klass = cl.loadClass(userDocletName); 754 return klass; 755 } catch (ClassNotFoundException cnfe) { 756 if (apiMode) { 757 throw new IllegalArgumentException("Cannot find doclet class " + userDocletName, 758 cnfe); 759 } 760 String text = messager.getText("main.doclet_class_not_found", userDocletName); 761 throw new ToolException(CMDERR, text, cnfe); 762 } 763 } 764 765 // Step 4: we have a doclet, try loading it 766 if (docletName != null) { 767 try { 768 return Class.forName(docletName, true, getClass().getClassLoader()); 769 } catch (ClassNotFoundException cnfe) { 770 if (apiMode) { 771 throw new IllegalArgumentException("Cannot find doclet class " + userDocletName); 772 } 773 String text = messager.getText("main.doclet_class_not_found", userDocletName); 774 throw new ToolException(CMDERR, text, cnfe); 775 } 776 } 777 778 // Step 5: we don't have a doclet specified, do we have taglets ? 779 if (!userTagletNames.isEmpty() && hasOldTaglet(userTagletNames, userTagletPath)) { 780 // found a bogey, return the old doclet 781 return OldStdDoclet; 782 } 783 784 // finally 785 return StdDoclet; 786 } 787 788 /* 789 * This method returns true iff it finds a legacy taglet, but for 790 * all other conditions including errors it returns false, allowing 791 * nature to take its own course. 792 */ 793 @SuppressWarnings("deprecation") 794 private boolean hasOldTaglet(List<String> tagletNames, List<File> tagletPaths) throws ToolException { 795 if (!fileManager.hasLocation(TAGLET_PATH)) { 796 try { 797 ((StandardJavaFileManager) fileManager).setLocation(TAGLET_PATH, tagletPaths); 798 } catch (IOException ioe) { 799 String text = messager.getText("main.doclet_could_not_set_location", tagletPaths); 800 throw new ToolException(CMDERR, text, ioe); 801 } 802 } 803 ClassLoader cl = fileManager.getClassLoader(TAGLET_PATH); 804 if (cl == null) { 805 // no classloader found! 806 String text = messager.getText("main.doclet_no_classloader_found", tagletNames.get(0)); 807 throw new ToolException(CMDERR, text); 808 } 809 for (String tagletName : tagletNames) { 810 try { 811 Class<?> klass = cl.loadClass(tagletName); 812 if (com.sun.tools.doclets.Taglet.class.isAssignableFrom(klass)) { 813 return true; 814 } 815 } catch (ClassNotFoundException cnfe) { 816 String text = messager.getText("main.doclet_class_not_found", tagletName); 817 throw new ToolException(CMDERR, text, cnfe); 818 } 819 } 820 return false; 821 } 822 823 private void parseArgs(List<String> args, List<String> javaNames) throws ToolException, 824 OptionException, com.sun.tools.javac.main.Option.InvalidValueException { 825 for (int i = 0 ; i < args.size() ; i++) { 826 String arg = args.get(i); 827 ToolOption o = ToolOption.get(arg); 828 if (o != null) { 829 // handle a doclet argument that may be needed however 830 // don't increment the index, and allow the tool to consume args 831 handleDocletOptions(i, args, true); 832 if (o.hasArg) { 833 if (arg.startsWith("--") && arg.contains("=")) { 834 o.process(this, arg.substring(arg.indexOf('=') + 1)); 835 } else { 836 checkOneArg(args, i++); 837 o.process(this, args.get(i)); 838 } 839 } else if (o.hasSuffix) { 840 o.process(this, arg); 841 } else { 842 o.process(this); 843 } 844 } else if (arg.startsWith("-XD")) { 845 // hidden javac options 846 String s = arg.substring("-XD".length()); 847 int eq = s.indexOf('='); 848 String key = (eq < 0) ? s : s.substring(0, eq); 849 String value = (eq < 0) ? s : s.substring(eq+1); 850 compOpts.put(key, value); 851 } else if (arg.startsWith("-")) { 852 i = handleDocletOptions(i, args, false); 853 } else { 854 javaNames.add(arg); 855 } 856 } 857 } 858 859 private <T> boolean isEmpty(Iterable<T> iter) { 860 return !iter.iterator().hasNext(); 861 } 862 863 /** 864 * Check the one arg option. 865 * Error and exit if one argument is not provided. 866 */ 867 private void checkOneArg(List<String> args, int index) throws OptionException { 868 if ((index + 1) >= args.size() || args.get(index + 1).startsWith("-d")) { 869 String text = messager.getText("main.requires_argument", args.get(index)); 870 throw new OptionException(CMDERR, this::usage, text); 871 } 872 } 873 874 void error(String key, Object... args) { 875 messager.printErrorUsingKey(key, args); 876 } 877 878 void warn(String key, Object... args) { 879 messager.printWarningUsingKey(key, args); 880 } 881 882 /** 883 * Get the locale if specified on the command line 884 * else return null and if locale option is not used 885 * then return default locale. 886 */ 887 private Locale getLocale(String localeName) throws ToolException { 888 Locale userlocale = null; 889 if (localeName == null || localeName.isEmpty()) { 890 return Locale.getDefault(); 891 } 892 int firstuscore = localeName.indexOf('_'); 893 int seconduscore = -1; 894 String language = null; 895 String country = null; 896 String variant = null; 897 if (firstuscore == 2) { 898 language = localeName.substring(0, firstuscore); 899 seconduscore = localeName.indexOf('_', firstuscore + 1); 900 if (seconduscore > 0) { 901 if (seconduscore != firstuscore + 3 902 || localeName.length() <= seconduscore + 1) { 903 String text = messager.getText("main.malformed_locale_name", localeName); 904 throw new ToolException(CMDERR, text); 905 } 906 country = localeName.substring(firstuscore + 1, 907 seconduscore); 908 variant = localeName.substring(seconduscore + 1); 909 } else if (localeName.length() == firstuscore + 3) { 910 country = localeName.substring(firstuscore + 1); 911 } else { 912 String text = messager.getText("main.malformed_locale_name", localeName); 913 throw new ToolException(CMDERR, text); 914 } 915 } else if (firstuscore == -1 && localeName.length() == 2) { 916 language = localeName; 917 } else { 918 String text = messager.getText("main.malformed_locale_name", localeName); 919 throw new ToolException(CMDERR, text); 920 } 921 userlocale = searchLocale(language, country, variant); 922 if (userlocale == null) { 923 String text = messager.getText("main.illegal_locale_name", localeName); 924 throw new ToolException(CMDERR, text); 925 } else { 926 return userlocale; 927 } 928 } 929 930 /** 931 * Search the locale for specified language, specified country and 932 * specified variant. 933 */ 934 private Locale searchLocale(String language, String country, 935 String variant) { 936 for (Locale loc : Locale.getAvailableLocales()) { 937 if (loc.getLanguage().equals(language) && 938 (country == null || loc.getCountry().equals(country)) && 939 (variant == null || loc.getVariant().equals(variant))) { 940 return loc; 941 } 942 } 943 return null; 944 } 945 946 @Override 947 OptionHelper getOptionHelper() { 948 return new GrumpyHelper(messager) { 949 @Override 950 public String get(com.sun.tools.javac.main.Option option) { 951 return compOpts.get(option); 952 } 953 954 @Override 955 public void put(String name, String value) { 956 compOpts.put(name, value); 957 } 958 959 @Override 960 public void remove(String name) { 961 compOpts.remove(name); 962 } 963 964 @Override 965 public boolean handleFileManagerOption(com.sun.tools.javac.main.Option option, String value) { 966 fileManagerOpts.put(option, value); 967 return true; 968 } 969 }; 970 } 971 972 @Override 973 String getLocalizedMessage(String msg, Object... args) { 974 return messager.getText(msg, args); 975 } 976} 977