Source Code Cross Referenced for Javac.java in  » XML-UI » XUI » net » xoetrope » builder » editor » ant » taskdefs » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » XML UI » XUI » net.xoetrope.builder.editor.ant.taskdefs 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * The Apache Software License, Version 1.1
003:         *
004:         * Copyright (c) 1999 The Apache Software Foundation.  All rights
005:         * reserved.
006:         *
007:         * Redistribution and use in source and binary forms, with or without
008:         * modification, are permitted provided that the following conditions
009:         * are met:
010:         *
011:         * 1. Redistributions of source code must retain the above copyright
012:         *    notice, this list of conditions and the following disclaimer.
013:         *
014:         * 2. Redistributions in binary form must reproduce the above copyright
015:         *    notice, this list of conditions and the following disclaimer in
016:         *    the documentation and/or other materials provided with the
017:         *    distribution.
018:         *
019:         * 3. The end-user documentation included with the redistribution, if
020:         *    any, must include the following acknowlegement:
021:         *       "This product includes software developed by the
022:         *        Apache Software Foundation (http://www.apache.org/)."
023:         *    Alternately, this acknowlegement may appear in the software itself,
024:         *    if and wherever such third-party acknowlegements normally appear.
025:         *
026:         * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
027:         *    Foundation" must not be used to endorse or promote products derived
028:         *    from this software without prior written permission. For written
029:         *    permission, please contact apache@apache.org.
030:         *
031:         * 5. Products derived from this software may not be called "Apache"
032:         *    nor may "Apache" appear in their names without prior written
033:         *    permission of the Apache Group.
034:         *
035:         * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
036:         * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
037:         * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
038:         * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
039:         * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
040:         * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
041:         * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
042:         * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
043:         * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
044:         * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
045:         * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
046:         * SUCH DAMAGE.
047:         * ====================================================================
048:         *
049:         * This software consists of voluntary contributions made by many
050:         * individuals on behalf of the Apache Software Foundation.  For more
051:         * information on the Apache Software Foundation, please see
052:         * <http://www.apache.org/>.
053:         */
054:
055:        package net.xoetrope.builder.editor.ant.taskdefs;
056:
057:        import java.io.BufferedReader;
058:        import java.io.BufferedWriter;
059:        import java.io.File;
060:        import java.io.FileInputStream;
061:        import java.io.FileOutputStream;
062:        import java.io.FileReader;
063:        import java.io.FileWriter;
064:        import java.io.FilenameFilter;
065:        import java.io.IOException;
066:        import java.util.Date;
067:        import java.util.Enumeration;
068:        import java.util.Hashtable;
069:        import java.util.StringTokenizer;
070:        import java.util.Vector;
071:
072:        import net.xoetrope.builder.editor.XEditorProject;
073:        import net.xoetrope.builder.editor.XEditorProjectManager;
074:        import net.xoetrope.builder.editor.ant.BuildException;
075:        import net.xoetrope.builder.editor.ant.DirectoryScanner;
076:        import net.xoetrope.debug.DebugLogger;
077:
078:        /**
079:         * Task to compile Java source files. This task can take the following
080:         * arguments:
081:         * <ul>
082:         * <li>sourcedir
083:         * <li>destdir
084:         * <li>deprecation
085:         * <li>classpath
086:         * <li>bootclasspath
087:         * <li>extdirs
088:         * <li>optimize
089:         * <li>debug
090:         * <li>target
091:         * </ul>
092:         * Of these arguments, the <b>sourcedir</b> and <b>destdir</b> are required.
093:         * <p>
094:         * When this task executes, it will recursively scan the sourcedir and
095:         * destdir looking for Java source files to compile. This task makes its
096:         * compile decision based on timestamp. Any other file in the
097:         * sourcedir will be copied to the destdir allowing support files to be
098:         * located properly in the classpath.
099:         *
100:         * @author James Davidson <a href="mailto:duncan@x180.com">duncan@x180.com</a>
101:         *
102:         * Modified for us in XuiEditor
103:         */
104:
105:        public class Javac extends MatchingTask {
106:
107:            private File srcDir;
108:            private File destDir;
109:            private String compileClasspath;
110:            private boolean debug = false;
111:            private boolean optimize = false;
112:            private boolean deprecation = false;
113:            private boolean filtering = false;
114:            private String target;
115:            private String bootclasspath;
116:            private String extdirs;
117:
118:            protected Vector compileList = new Vector();
119:            protected Hashtable filecopyList = new Hashtable();
120:
121:            private File baseDir;
122:            private static String javaVersion;
123:
124:            public static final String JAVA_1_0 = "1.0";
125:            public static final String JAVA_1_1 = "1.1";
126:            public static final String JAVA_1_2 = "1.2";
127:            public static final String JAVA_1_3 = "1.3";
128:
129:            public Javac() {
130:                detectJavaVersion();
131:            }
132:
133:            /**
134:             * Set the source dir to find the source Java files.
135:             */
136:            public void setSrcDir(File srcDirName) {
137:                srcDir = srcDirName;
138:            }
139:
140:            public void setSrcDir(String srcD) throws BuildException {
141:                try {
142:                    setSrcDir(new File(new File(srcD).getCanonicalPath()));
143:                } catch (IOException ioe) {
144:                    String msg = "Can't set srcDir " + srcDir + " due to "
145:                            + ioe.getMessage();
146:                    throw new BuildException(msg);
147:                }
148:            }
149:
150:            /**
151:             * Set the destination directory into which the Java source
152:             * files should be compiled.
153:             */
154:            public void setDestDir(File destDirName) {
155:                destDir = destDirName;
156:            }
157:
158:            public void setDestDir(String destD) throws BuildException {
159:                try {
160:                    setDestDir(new File(new File(destD).getCanonicalPath()));
161:                } catch (IOException ioe) {
162:                    String msg = "Can't set destdir " + destDir + " due to "
163:                            + ioe.getMessage();
164:                    throw new BuildException(msg);
165:                }
166:            }
167:
168:            /**
169:             * Set the classpath to be used for this compilation.
170:             */
171:            public void setClasspath(String classpath) {
172:                compileClasspath = classpath;
173:            }
174:
175:            /**
176:             * Sets the bootclasspath that will be used to compile the classes
177:             * against.
178:             */
179:            public void setBootclasspath(String bootclasspath) {
180:                this .bootclasspath = bootclasspath;
181:            }
182:
183:            /**
184:             * Sets the extension directories that will be used during the
185:             * compilation.
186:             */
187:            public void setExtdirs(String extdirs) {
188:                this .extdirs = extdirs;
189:            }
190:
191:            /**
192:             * Set the deprecation flag.
193:             */
194:            public void setDeprecation(boolean deprecationString) {
195:                this .deprecation = deprecationString;
196:            }
197:
198:            /**
199:             * Set the debug flag.
200:             */
201:            public void setDebug(boolean debugString) {
202:                this .debug = debugString;
203:            }
204:
205:            /**
206:             * Set the optimize flag.
207:             */
208:            public void setOptimize(boolean optimizeString) {
209:                this .optimize = optimizeString;
210:            }
211:
212:            /**
213:             * Sets the target VM that the classes will be compiled for. Valid
214:             * strings are "1.1", "1.2", and "1.3".
215:             */
216:            public void setTarget(String target) {
217:                this .target = target;
218:            }
219:
220:            /**
221:             * Set the filtering flag.
222:             */
223:            public void setFiltering(boolean filter) {
224:                filtering = filter;
225:            }
226:
227:            /**
228:             * Executes the task.
229:             */
230:            public void execute() throws BuildException
231:  {
232:    // first off, make sure that we've got a srcdir and destdir
233:
234:    if ( srcDir == null ) {
235:      throw new BuildException( "srcdir attribute must be set!" );
236:    }
237:    if ( !srcDir.exists() ) {
238:      throw new BuildException( "srcdir does not exist!" );
239:    }
240:    if ( destDir == null ) {
241:      throw new BuildException( "destdir attribute must be set!" );
242:    }
243:
244:    // scan source and dest dirs to build up both copy lists and
245:    // compile lists
246:    DirectoryScanner ds = this .getDirectoryScanner( srcDir );
247:
248:    String[] files = ds.getIncludedFiles();
249:
250:    scanDir( srcDir, destDir, files );
251:
252:    doClassicCompile();
253:
254:    // copy the support files
255:    if ( filecopyList.size() > 0 ) {
256:      String msg = "Copying " + filecopyList.size() +
257:                   " support files to " + destDir.getAbsolutePath();
258:      log( msg );
259:      Enumeration enum = filecopyList.keys();
260:      while ( enum.hasMoreElements() ) {
261:        String fromFile = ( String )enum.nextElement();
262:        String toFile = ( String )filecopyList.get( fromFile );
263:        try {
264:          copyFile( new File( fromFile ), new File( toFile ), filtering );
265:        }
266:        catch ( IOException ioe ) {
267:          String errMsg = "Failed to copy " + fromFile + " to " + toFile
268:                       + " due to " + ioe.getMessage();
269:          throw new BuildException( errMsg );
270:        }
271:      }
272:    }
273:  }
274:
275:            /**
276:             * Scans the directory looking for source files to be compiled and
277:             * support files to be copied.  The results are returned in the
278:             * class variables compileList and filecopyList.
279:             */
280:
281:            protected void scanDir(File srcDir, File destDir, String files[]) {
282:
283:                compileList.removeAllElements();
284:                filecopyList.clear();
285:
286:                long now = (new Date()).getTime();
287:
288:                for (int i = 0; i < files.length; i++) {
289:                    File srcFile = new File(srcDir, files[i]);
290:                    if (files[i].endsWith(".java")) {
291:                        File classFile = new File(destDir, files[i].substring(
292:                                0, files[i].indexOf(".java"))
293:                                + ".class");
294:
295:                        if (srcFile.lastModified() > now)
296:                            log("Warning: file modified in the future: "
297:                                    + files[i]);
298:
299:                        if (srcFile.lastModified() > classFile.lastModified()) {
300:                            compileList.addElement(srcFile.getAbsolutePath());
301:                        }
302:                    } else {
303:                        File destFile = new File(destDir, files[i]);
304:                        if (srcFile.lastModified() > destFile.lastModified()) {
305:                            filecopyList.put(srcFile.getAbsolutePath(),
306:                                    destFile.getAbsolutePath());
307:                        }
308:                    }
309:                }
310:            }
311:
312:            /**
313:             * Builds the compilation classpath.
314:             */
315:
316:            // XXX
317:            // we need a way to not use the current classpath.
318:            private String getCompileClasspath() {
319:                StringBuffer classpath = new StringBuffer();
320:
321:                // add dest dir to classpath so that previously compiled and
322:                // untouched classes are on classpath
323:
324:                //classpath.append(sourceDir.getAbsolutePath());
325:                //classpath.append(File.pathSeparator);
326:                classpath.append(destDir.getAbsolutePath());
327:
328:                // add our classpath to the mix
329:
330:                if (compileClasspath != null)
331:                    addExistingToClasspath(classpath, compileClasspath);
332:
333:                // add the system classpath
334:                addExistingToClasspath(classpath, System
335:                        .getProperty("java.class.path"));
336:
337:                // add the XUI library jar to the file for Runtime
338:                String xuiLib = System.getProperty("user.dir")
339:                        + File.separatorChar;
340:                if (((XEditorProject) XEditorProjectManager.getCurrentProject())
341:                        .isSwingClient())
342:                    xuiLib += "XuiCoreSwing.jar";
343:                else
344:                    xuiLib += "XuiCore.jar";
345:                addExistingToClasspath(classpath, xuiLib);
346:
347:                xuiLib = ((XEditorProject) XEditorProjectManager
348:                        .getCurrentProject()).getPath()
349:                        + File.separatorChar + "lib" + File.separatorChar;
350:                if (((XEditorProject) XEditorProjectManager.getCurrentProject())
351:                        .isSwingClient())
352:                    xuiLib += "XuiCoreSwing.jar";
353:                else
354:                    xuiLib += "XuiCore.jar";
355:                addExistingToClasspath(classpath, xuiLib);
356:
357:                return classpath.toString();
358:            }
359:
360:            /**
361:             * Takes a classpath-like string, and adds each element of
362:             * this string to a new classpath, if the components exist.
363:             * Components that don't exist, aren't added.
364:             * We do this, because jikes issues warnings for non-existant
365:             * files/dirs in his classpath, and these warnings are pretty
366:             * annoying.
367:             * @param target - target classpath
368:             * @param source - source classpath
369:             * to get file objects.
370:             */
371:            private void addExistingToClasspath(StringBuffer target,
372:                    String source) {
373:                StringTokenizer tok = new StringTokenizer(source, System
374:                        .getProperty("path.separator"), false);
375:                while (tok.hasMoreTokens()) {
376:                    File f = resolveFile(tok.nextToken());
377:
378:                    if (f.exists()) {
379:                        target.append(File.pathSeparator);
380:                        target.append(f.getAbsolutePath());
381:                    } else
382:                        log("Dropping from classpath: " + f.getAbsolutePath());
383:                }
384:            }
385:
386:            /**
387:             * Peforms a copmile using the classic compiler that shipped with
388:             * JDK 1.1 and 1.2.
389:             */
390:
391:            private void doClassicCompile() throws BuildException
392:  {
393:    log( "Using classic compiler" );
394:    String classpath = getCompileClasspath();
395:    Vector argList = new Vector();
396:
397:    if ( deprecation == true )
398:      argList.addElement( "-deprecation" );
399:
400:    argList.addElement( "-d" );
401:    argList.addElement( destDir.getAbsolutePath() );
402:    argList.addElement( "-classpath" );
403:    // Just add "sourcepath" to classpath ( for JDK1.1 )
404:    if ( javaVersion.startsWith( "1.1" ) ) {
405:      argList.addElement( classpath + File.pathSeparator +
406:                          srcDir.getAbsolutePath() );
407:    }
408:    else {
409:      argList.addElement( classpath );
410:      argList.addElement( "-sourcepath" );
411:      argList.addElement( srcDir.getAbsolutePath() );
412:      if ( target != null ) {
413:        argList.addElement( "-target" );
414:        argList.addElement( target );
415:      }
416:    }
417:    if ( debug ) {
418:      argList.addElement( "-g" );
419:    }
420:    if ( optimize ) {
421:      argList.addElement( "-O" );
422:    }
423:    if ( bootclasspath != null ) {
424:      argList.addElement( "-bootclasspath" );
425:      argList.addElement( bootclasspath );
426:    }
427:    if ( extdirs != null ) {
428:      argList.addElement( "-extdirs" );
429:      argList.addElement( extdirs );
430:    }
431:
432:    log( "Compilation args: " + argList.toString() );
433:
434:    String[] args = new String[ argList.size() + compileList.size() ];
435:    int counter = 0;
436:
437:    for ( int i = 0; i < argList.size(); i++ ) {
438:      args[ i ] = ( String )argList.elementAt( i );
439:      counter++;
440:    }
441:
442:    // XXX
443:    // should be using system independent line feed!
444:
445:    StringBuffer niceSourceList = new StringBuffer( "Files to be compiled:"
446:        + "\r\n" );
447:
448:    Enumeration enum = compileList.elements();
449:    while ( enum.hasMoreElements() ) {
450:      args[ counter ] = ( String )enum.nextElement();
451:      niceSourceList.append( "    " + args[ counter ] + "\r\n" );
452:      counter++;
453:    }
454:
455:    log( niceSourceList.toString() );
456:
457:    // XXX
458:    // provide the compiler a different message sink - namely our own
459:
460:    JavacOutputStream jos = new JavacOutputStream();
461:
462:    sun.tools.javac.Main compiler = new sun.tools.javac.Main( jos, "javac" );
463:    compiler.compile( args );
464:    if ( jos.getErrorFlag() ) {
465:      String msg = "Compile failed, messages should have been provided.";
466:      throw new BuildException( msg );
467:    }
468:  }
469:
470:            class JarFilenameFilter implements  FilenameFilter {
471:                public boolean accept(File dir, String name) {
472:                    return name.endsWith(".jar");
473:                }
474:            }
475:
476:            /**
477:             * Emulation of extdirs feature in java >= 1.2.
478:             * This method adds all jar archives in the given
479:             * directories (but not in sub-directories!) to the classpath,
480:             * so that you don't have to specify them all one by one.
481:             * @param classpath - stringbuffer to append jar files to
482:             */
483:            private void addExtdirsToClasspath(StringBuffer classpath) {
484:                // FIXME
485:                // Should we scan files recursively? How does
486:                // javac handle this?
487:
488:                if (extdirs != null) {
489:                    StringTokenizer tok = new StringTokenizer(extdirs,
490:                            File.pathSeparator, false);
491:                    while (tok.hasMoreTokens()) {
492:                        File dir = resolveFile(tok.nextToken());
493:                        String[] files = dir.list(new JarFilenameFilter());
494:                        for (int i = 0; i < files.length; i++) {
495:                            File f = new File(dir, files[i]);
496:                            if (f.exists() && f.isFile()) {
497:                                classpath.append(File.pathSeparator);
498:                                classpath.append(f.getAbsolutePath());
499:                            }
500:                        }
501:                    }
502:                }
503:            }
504:
505:            public File resolveFile(String fileName) {
506:                // deal with absolute files
507:                if (fileName.startsWith("/"))
508:                    return new File(fileName);
509:                if (fileName.startsWith(System.getProperty("file.separator")))
510:                    return new File(fileName);
511:
512:                // Eliminate consecutive slashes after the drive spec
513:                if (fileName.length() >= 2
514:                        && Character.isLetter(fileName.charAt(0))
515:                        && fileName.charAt(1) == ':') {
516:                    char[] ca = fileName.replace('/', '\\').toCharArray();
517:                    char c;
518:                    StringBuffer sb = new StringBuffer();
519:
520:                    for (int i = 0; i < ca.length; i++) {
521:                        if ((ca[i] != '\\')
522:                                || (ca[i] == '\\' && i > 0 && ca[i - 1] != '\\')) {
523:                            if (i == 0 && Character.isLetter(ca[i])
524:                                    && i < ca.length - 1 && ca[i + 1] == ':') {
525:                                c = Character.toUpperCase(ca[i]);
526:                            } else {
527:                                c = ca[i];
528:                            }
529:
530:                            sb.append(c);
531:                        }
532:                    }
533:
534:                    return new File(sb.toString());
535:                }
536:
537:                File file = new File(baseDir.getAbsolutePath());
538:                StringTokenizer tok = new StringTokenizer(fileName, "/", false);
539:                while (tok.hasMoreTokens()) {
540:                    String part = tok.nextToken();
541:                    if (part.equals("..")) {
542:                        file = new File(file.getParent());
543:                    } else if (part.equals(".")) {
544:                        // Do nothing here
545:                    } else {
546:                        file = new File(file, part);
547:                    }
548:                }
549:
550:                try {
551:                    return new File(file.getCanonicalPath());
552:                } catch (IOException e) {
553:                    logError("IOException getting canonical path for " + file
554:                            + ": " + e.getMessage());
555:                    return new File(file.getAbsolutePath());
556:                }
557:            }
558:
559:            // match basedir attribute in xml
560:            public void setBaseDir(String baseD) throws BuildException {
561:                try {
562:                    setBaseDir(new File(new File(baseD).getCanonicalPath()));
563:                } catch (IOException ioe) {
564:                    String msg = "Can't set basedir " + baseDir + " due to "
565:                            + ioe.getMessage();
566:                    throw new BuildException(msg);
567:                }
568:            }
569:
570:            public void setBaseDir(File baseDir) {
571:                this .baseDir = baseDir;
572:                String msg = "Project base dir set to: " + baseDir;
573:                log(msg);
574:            }
575:
576:            private void detectJavaVersion() {
577:                // Determine the Java version by looking at available classes
578:                // java.lang.StrictMath was introduced in JDK 1.3
579:                // java.lang.ThreadLocal was introduced in JDK 1.2
580:                // java.lang.Void was introduced in JDK 1.1
581:                // Count up version until a NoClassDefFoundError ends the try
582:                try {
583:                    javaVersion = JAVA_1_0;
584:                    Class.forName("java.lang.Void");
585:                    javaVersion = JAVA_1_1;
586:                    Class.forName("java.lang.ThreadLocal");
587:                    javaVersion = JAVA_1_2;
588:                    Class.forName("java.lang.StrictMath");
589:                    javaVersion = JAVA_1_3;
590:                } catch (ClassNotFoundException cnfe) {
591:                    // swallow as we've hit the max class version that
592:                    // we have
593:                }
594:
595:                // sanity check
596:                if (javaVersion == JAVA_1_0) {
597:                    throw new BuildException("Ant cannot work on Java 1.0");
598:                }
599:
600:                log("Detected Java Version: " + javaVersion);
601:
602:                log("Detected OS: " + System.getProperty("os.name"));
603:            }
604:
605:            /**
606:             * Convienence method to copy a file from a source to a destination
607:             * specifying if token filtering must be used.
608:             *
609:             * @throws IOException
610:             */
611:            public void copyFile(File sourceFile, File destFile,
612:                    boolean filtering) throws IOException {
613:
614:                if (destFile.lastModified() < sourceFile.lastModified()) {
615:                    log("Copy: " + sourceFile.getAbsolutePath() + " > "
616:                            + destFile.getAbsolutePath());
617:
618:                    // ensure that parent dir of dest file exists!
619:                    // not using getParentFile method to stay 1.1 compat
620:                    File parent = new File(destFile.getParent());
621:                    if (!parent.exists()) {
622:                        parent.mkdirs();
623:                    }
624:
625:                    if (filtering) {
626:                        BufferedReader in = new BufferedReader(new FileReader(
627:                                sourceFile));
628:                        BufferedWriter out = new BufferedWriter(new FileWriter(
629:                                destFile));
630:
631:                        int length;
632:                        String newline = null;
633:                        String line = in.readLine();
634:                        while (line != null) {
635:                            if (line.length() == 0) {
636:                                out.newLine();
637:                            } else {
638:                                //            newline = replace( line, filters );
639:                                out.write(newline);
640:                                out.newLine();
641:                            }
642:                            line = in.readLine();
643:                        }
644:
645:                        out.close();
646:                        in.close();
647:                    } else {
648:                        FileInputStream in = new FileInputStream(sourceFile);
649:                        FileOutputStream out = new FileOutputStream(destFile);
650:
651:                        byte[] buffer = new byte[8 * 1024];
652:                        int count = 0;
653:                        do {
654:                            out.write(buffer, 0, count);
655:                            count = in.read(buffer, 0, buffer.length);
656:                        } while (count != -1);
657:
658:                        in.close();
659:                        out.close();
660:                    }
661:                }
662:            }
663:
664:            private void log(String s) {
665:                DebugLogger.log(s);
666:            }
667:
668:            private void logError(String s) {
669:                DebugLogger.logError(s);
670:            }
671:        }
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