Source Code Cross Referenced for GlobalSourcePath.java in  » IDE-Netbeans » gsf » org » netbeans » modules » gsfret » source » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » gsf » org.netbeans.modules.gsfret.source 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003:         *
004:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * The contents of this file are subject to the terms of either the GNU
007:         * General Public License Version 2 only ("GPL") or the Common
008:         * Development and Distribution License("CDDL") (collectively, the
009:         * "License"). You may not use this file except in compliance with the
010:         * License. You can obtain a copy of the License at
011:         * http://www.netbeans.org/cddl-gplv2.html
012:         * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013:         * specific language governing permissions and limitations under the
014:         * License.  When distributing the software, include this License Header
015:         * Notice in each file and include the License file at
016:         * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
017:         * particular file as subject to the "Classpath" exception as provided
018:         * by Sun in the GPL Version 2 section of the License file that
019:         * accompanied this code. If applicable, add the following below the
020:         * License Header, with the fields enclosed by brackets [] replaced by
021:         * your own identifying information:
022:         * "Portions Copyrighted [year] [name of copyright owner]"
023:         *
024:         * Contributor(s):
025:         *
026:         * The Original Software is NetBeans. The Initial Developer of the Original
027:         * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028:         * Microsystems, Inc. All Rights Reserved.
029:         *
030:         * If you wish your version of this file to be governed by only the CDDL
031:         * or only the GPL Version 2, indicate your decision by adding
032:         * "[Contributor] elects to include this software in this distribution
033:         * under the [CDDL or GPL Version 2] license." If you do not indicate a
034:         * single choice of license, a recipient has the option to distribute
035:         * your version of this file under either the CDDL, the GPL Version 2 or
036:         * to extend the choice of license to its licensees as provided above.
037:         * However, if you add GPL Version 2 code and therefore, elected the GPL
038:         * Version 2 license, then the option applies only if the new code is
039:         * made subject to such option by the copyright holder.
040:         */
041:
042:        package org.netbeans.modules.gsfret.source;
043:
044:        import java.beans.PropertyChangeEvent;
045:        import java.beans.PropertyChangeListener;
046:        import java.beans.PropertyChangeListener;
047:        import java.beans.PropertyChangeListener;
048:        import java.lang.ref.WeakReference;
049:        import java.net.URL;
050:        import java.util.ArrayList;
051:        import java.util.ArrayList;
052:        import java.util.Collection;
053:        import java.util.Collections;
054:        import java.util.HashMap;
055:        import java.util.HashSet;
056:        import java.util.Iterator;
057:        import java.util.List;
058:        import java.util.Map;
059:        import java.util.Set;
060:        import java.util.TooManyListenersException;
061:        import java.util.concurrent.CopyOnWriteArrayList;
062:        import javax.swing.event.ChangeEvent;
063:        import javax.swing.event.ChangeListener;
064:        import org.netbeans.modules.gsfpath.api.classpath.ClassPath;
065:        import org.netbeans.modules.gsfpath.api.classpath.GlobalPathRegistry;
066:        import org.netbeans.modules.gsfpath.api.classpath.GlobalPathRegistryEvent;
067:        import org.netbeans.modules.gsfpath.api.classpath.GlobalPathRegistryListener;
068:        import org.netbeans.modules.gsfpath.api.queries.SourceForBinaryQuery;
069:        import org.netbeans.modules.gsfpath.spi.classpath.ClassPathImplementation;
070:        import org.netbeans.modules.gsfpath.spi.classpath.PathResourceImplementation;
071:        import org.netbeans.modules.gsfpath.spi.classpath.support.ClassPathSupport;
072:        import org.openide.ErrorManager;
073:        import org.openide.filesystems.FileObject;
074:        import org.openide.filesystems.FileStateInvalidException;
075:        import org.openide.util.Utilities;
076:        import org.openide.util.WeakListeners;
077:
078:        /**
079:         * This file is originally from Retouche, the Java Support 
080:         * infrastructure in NetBeans. I have modified the file as little
081:         * as possible to make merging Retouche fixes back as simple as
082:         * possible. 
083:         *
084:         *
085:         * @author Tomas Zezula
086:         */
087:        public class GlobalSourcePath {
088:
089:            public static final String PROP_INCLUDES = ClassPath.PROP_INCLUDES;
090:
091:            private static GlobalSourcePath instance;
092:
093:            private final GlobalPathRegistry gpr;
094:            private List<? extends PathResourceImplementation> resources;
095:            private List<? extends PathResourceImplementation> unknownResources;
096:            private List<? extends PathResourceImplementation> binaryResources;
097:            private Set<ClassPath> activeCps;
098:            private Map<URL, SourceForBinaryQuery.Result> sourceResults;
099:            private Map<URL, URL[]> translatedRoots;
100:            private Map<URL, WeakValue> unknownRoots;
101:            private long timeStamp; //Lamport event ordering
102:            private Runnable debugCallBack;
103:
104:            private final SourcePathImplementation sourcePath;
105:            private final BinaryPathImplementation binaryPath;
106:            private final UnknownSourcePathImplementation unknownSourcePath;
107:
108:            private final Listener listener;
109:
110:            private PropertyChangeListener excludesListener;
111:
112:            /** Creates a new instance of GlobalSourcePath */
113:            private GlobalSourcePath() {
114:                this .listener = new Listener();
115:                this .sourcePath = new SourcePathImplementation();
116:                this .binaryPath = new BinaryPathImplementation();
117:                this .unknownSourcePath = new UnknownSourcePathImplementation();
118:                this .timeStamp = -1;
119:                this .gpr = GlobalPathRegistry.getDefault();
120:                this .activeCps = Collections.emptySet();
121:                this .sourceResults = Collections.emptyMap();
122:                this .unknownRoots = new HashMap<URL, WeakValue>();
123:                this .translatedRoots = new HashMap<URL, URL[]>();
124:                this .gpr
125:                        .addGlobalPathRegistryListener((GlobalPathRegistryListener) WeakListeners
126:                                .create(GlobalPathRegistryListener.class,
127:                                        this .listener, this .gpr));
128:            }
129:
130:            public void setExcludesListener(
131:                    final PropertyChangeListener listener)
132:                    throws TooManyListenersException {
133:                if (this .excludesListener != null) {
134:                    throw new TooManyListenersException();
135:                }
136:                this .excludesListener = listener;
137:            }
138:
139:            public URL[] getSourceRootForBinaryRoot(final URL binaryRoot,
140:                    final ClassPath definingClassPath, final boolean fire) {
141:                URL[] result = this .translatedRoots.get(binaryRoot);
142:                if (result != null) {
143:                    if (result.length > 0) {
144:                        return result;
145:                    } else {
146:                        return null;
147:                    }
148:                } else {
149:                    List<URL> cacheRoots = new ArrayList<URL>();
150:                    Collection<? extends PathResourceImplementation> unknownRes = getSources(
151:                            SourceForBinaryQuery.findSourceRoots(binaryRoot)
152:                                    .getRoots(), cacheRoots, null);
153:                    if (unknownRes.isEmpty()) {
154:                        return null;
155:                    } else {
156:                        result = new URL[cacheRoots.size()];
157:                        synchronized (this ) {
158:                            Iterator<URL> it = cacheRoots.iterator();
159:                            for (int i = 0; it.hasNext(); i++) {
160:                                result[i] = it.next();
161:                                unknownRoots.put(result[i], new WeakValue(
162:                                        definingClassPath, result[i]));
163:                            }
164:                        }
165:                        if (fire) {
166:                            this .resetCacheAndFire();
167:                        }
168:                        return result;
169:                    }
170:                }
171:            }
172:
173:            public ClassPathImplementation getSourcePath() {
174:                return this .sourcePath;
175:            }
176:
177:            public ClassPathImplementation getUnknownSourcePath() {
178:                return this .unknownSourcePath;
179:            }
180:
181:            public ClassPathImplementation getBinaryPath() {
182:                return this .binaryPath;
183:            }
184:
185:            private void resetCacheAndFire() {
186:                synchronized (this ) {
187:                    this .resources = null;
188:                    this .binaryResources = null;
189:                    this .unknownResources = null;
190:                    this .timeStamp++;
191:                }
192:                this .sourcePath.firePropertyChange();
193:                this .binaryPath.firePropertyChange();
194:                this .unknownSourcePath.firePropertyChange();
195:            }
196:
197:            private static Result createResources(final Request r) {
198:                assert r != null;
199:                Set<PathResourceImplementation> result = new HashSet<PathResourceImplementation>();
200:                Set<PathResourceImplementation> unknownResult = new HashSet<PathResourceImplementation>();
201:                Set<PathResourceImplementation> binaryResult = new HashSet<PathResourceImplementation>();
202:                final Map<URL, URL[]> translatedRoots = new HashMap<URL, URL[]>();
203:                Set<ClassPath> newCps = new HashSet<ClassPath>();
204:                for (ClassPath cp : r.sourceCps) {
205:                    boolean isNew = !r.oldCps.remove(cp);
206:                    for (ClassPath.Entry entry : cp.entries()) {
207:                        result.add(ClassPathSupport.createResource(entry
208:                                .getURL()));
209:                    }
210:                    boolean notContained = newCps.add(cp);
211:                    if (isNew && notContained) {
212:                        cp.addPropertyChangeListener(r.propertyListener);
213:                    }
214:                }
215:                // BEGIN TOR MODIFICATIONS
216:                // NEW: Treat bootCps as a source path, not a binary -  I want to scan
217:                // directories
218:                for (ClassPath cp : r.bootCps) {
219:                    boolean isNew = !r.oldCps.remove(cp);
220:                    for (ClassPath.Entry entry : cp.entries()) {
221:                        result.add(ClassPathSupport.createResource(entry
222:                                .getURL()));
223:                    }
224:                    boolean notContained = newCps.add(cp);
225:                    if (isNew && notContained) {
226:                        cp.addPropertyChangeListener(r.propertyListener);
227:                    }
228:                }
229:                // END TOR MODIFICATIONS
230:                Map<URL, SourceForBinaryQuery.Result> newSR = new HashMap<URL, SourceForBinaryQuery.Result>();
231:                /*
232:                for (ClassPath cp : r.bootCps) {
233:                    boolean isNew = !r.oldCps.remove(cp);
234:                    for (ClassPath.Entry entry : cp.entries()) {
235:                        URL url = entry.getURL();
236:                        if (!translatedRoots.containsKey(url)) {
237:                            SourceForBinaryQuery.Result sr = r.oldSR.remove (url);
238:                            boolean isNewSR;
239:                            if (sr == null) {
240:                                sr = SourceForBinaryQuery.findSourceRoots(url);
241:                                isNewSR = true;                    
242:                            }
243:                            else {
244:                                isNewSR = false;
245:                            }    
246:                            assert !newSR.containsKey(url);
247:                            newSR.put(url,sr);
248:                            List<URL> cacheURLs = new ArrayList<URL> ();
249:                            Collection<? extends PathResourceImplementation> srcRoots = getSources (sr.getRoots(), cacheURLs, r.unknownRoots);
250:                            if (srcRoots.isEmpty()) {
251:                                binaryResult.add (ClassPathSupport.createResource(url));
252:                            }
253:                            else {
254:                                result.addAll(srcRoots);
255:                            }
256:                            translatedRoots.put(url, cacheURLs.toArray(new URL[cacheURLs.size()]));
257:                            if (isNewSR) {
258:                                sr.addChangeListener(r.changeListener);
259:                            }
260:                        }                
261:                    }
262:                    boolean notContained = newCps.add (cp);
263:                    if (isNew && notContained) {
264:                        cp.addPropertyChangeListener(r.propertyListener);
265:                    }
266:                }
267:                 */
268:
269:                for (ClassPath cp : r.compileCps) {
270:                    boolean isNew = !r.oldCps.remove(cp);
271:                    for (ClassPath.Entry entry : cp.entries()) {
272:                        URL url = entry.getURL();
273:                        if (!translatedRoots.containsKey(url)) {
274:                            SourceForBinaryQuery.Result sr = r.oldSR
275:                                    .remove(url);
276:                            boolean isNewSR;
277:                            if (sr == null) {
278:                                sr = SourceForBinaryQuery.findSourceRoots(url);
279:                                isNewSR = true;
280:                            } else {
281:                                isNewSR = false;
282:                            }
283:                            assert !newSR.containsKey(url);
284:                            newSR.put(url, sr);
285:                            List<URL> cacheURLs = new ArrayList<URL>();
286:                            Collection<? extends PathResourceImplementation> srcRoots = getSources(
287:                                    sr.getRoots(), cacheURLs, r.unknownRoots);
288:                            if (srcRoots.isEmpty()) {
289:                                binaryResult.add(ClassPathSupport
290:                                        .createResource(url));
291:                            } else {
292:                                result.addAll(srcRoots);
293:                            }
294:                            translatedRoots.put(url, cacheURLs
295:                                    .toArray(new URL[cacheURLs.size()]));
296:                            if (isNewSR) {
297:                                sr.addChangeListener(r.changeListener);
298:                            }
299:                        }
300:                    }
301:                    boolean notContained = newCps.add(cp);
302:                    if (isNew && notContained) {
303:                        cp.addPropertyChangeListener(r.propertyListener);
304:                    }
305:                }
306:
307:                for (ClassPath cp : r.oldCps) {
308:                    cp.removePropertyChangeListener(r.propertyListener);
309:                }
310:
311:                for (Map.Entry<URL, SourceForBinaryQuery.Result> entry : r.oldSR
312:                        .entrySet()) {
313:                    entry.getValue().removeChangeListener(r.changeListener);
314:                }
315:                for (URL unknownRoot : r.unknownRoots.keySet()) {
316:                    unknownResult.add(ClassPathSupport
317:                            .createResource(unknownRoot));
318:                }
319:                return new Result(
320:                        r.timeStamp,
321:                        new ArrayList<PathResourceImplementation>(result),
322:                        new ArrayList(binaryResult),
323:                        new ArrayList<PathResourceImplementation>(unknownResult),
324:                        newCps, newSR, translatedRoots, r.unknownRoots);
325:            }
326:
327:            /**
328:             * Unit test method, used to set a callback which is called
329:             * form getResources to emulate a race condition.
330:             * The access to debugCallBack is not synchronized, it should be
331:             * set before test and unset after test.
332:             * @param callBack to be called
333:             *
334:             **/
335:            void setDebugCallBack(final Runnable callBack) {
336:                this .debugCallBack = callBack;
337:            }
338:
339:            private static Collection<? extends PathResourceImplementation> getSources(
340:                    final FileObject[] roots, final List<URL> cacheDirs,
341:                    final Map<URL, WeakValue> unknownRoots) {
342:                assert roots != null;
343:                URL[] urls = new URL[roots.length];
344:                boolean add = true;
345:                for (int i = 0; i < roots.length; i++) {
346:                    try {
347:                        URL url = roots[i].getURL();
348:                        if (!"file".equals(url.getProtocol())) { //NOI18N
349:                            add = false;
350:                            break;
351:                        }
352:                        urls[i] = url;
353:                    } catch (FileStateInvalidException e) {
354:                        ErrorManager.getDefault().notify(e);
355:                    }
356:                }
357:                if (add) {
358:                    List<PathResourceImplementation> result = new ArrayList<PathResourceImplementation>(
359:                            roots.length);
360:                    for (int i = 0; i < urls.length; i++) {
361:                        if (cacheDirs != null) {
362:                            cacheDirs.add(urls[i]);
363:                        }
364:                        if (unknownRoots != null) {
365:                            unknownRoots.remove(urls[i]);
366:                        }
367:                        result.add(ClassPathSupport.createResource(urls[i]));
368:                    }
369:                    return result;
370:                }
371:                return Collections.<PathResourceImplementation> emptySet();
372:            }
373:
374:            private class WeakValue extends WeakReference<ClassPath> implements 
375:                    Runnable {
376:
377:                private URL key;
378:
379:                public WeakValue(ClassPath ref, URL key) {
380:                    super (ref, Utilities.activeReferenceQueue());
381:                    assert key != null;
382:                    this .key = key;
383:                }
384:
385:                public void run() {
386:                    boolean fire = false;
387:                    synchronized (GlobalSourcePath.this ) {
388:                        fire = (GlobalSourcePath.this .unknownRoots.remove(key) != null);
389:                    }
390:                    if (fire) {
391:                        GlobalSourcePath.this .resetCacheAndFire();
392:                    }
393:                }
394:            }
395:
396:            private long getTimeStamp() {
397:                return this .timeStamp;
398:            }
399:
400:            private static class Request {
401:
402:                final long timeStamp;
403:                final Set<ClassPath> sourceCps;
404:                final Set<ClassPath> bootCps;
405:                final Set<ClassPath> compileCps;
406:                final Set<ClassPath> oldCps;
407:                final Map<URL, SourceForBinaryQuery.Result> oldSR;
408:                final Map<URL, WeakValue> unknownRoots;
409:                final PropertyChangeListener propertyListener;
410:                final ChangeListener changeListener;
411:
412:                public Request(final long timeStamp,
413:                        final Set<ClassPath> sourceCps,
414:                        final Set<ClassPath> bootCps,
415:                        final Set<ClassPath> compileCps,
416:                        final Set<ClassPath> oldCps,
417:                        final Map<URL, SourceForBinaryQuery.Result> oldSR,
418:                        final Map<URL, WeakValue> unknownRoots,
419:                        final PropertyChangeListener propertyListener,
420:                        final ChangeListener changeListener) {
421:                    assert sourceCps != null;
422:                    assert bootCps != null;
423:                    assert compileCps != null;
424:                    assert oldCps != null;
425:                    assert oldSR != null;
426:                    assert unknownRoots != null;
427:                    assert propertyListener != null;
428:                    assert changeListener != null;
429:
430:                    this .timeStamp = timeStamp;
431:                    this .sourceCps = sourceCps;
432:                    this .bootCps = bootCps;
433:                    this .compileCps = compileCps;
434:                    this .oldCps = oldCps;
435:                    this .oldSR = oldSR;
436:                    this .unknownRoots = unknownRoots;
437:                    this .propertyListener = propertyListener;
438:                    this .changeListener = changeListener;
439:                }
440:            }
441:
442:            private static class Result {
443:
444:                final long timeStamp;
445:                final List<? extends PathResourceImplementation> resources;
446:                final List<? extends PathResourceImplementation> binaryResources;
447:                final List<? extends PathResourceImplementation> unknownResources;
448:                final Set<ClassPath> newCps;
449:                final Map<URL, SourceForBinaryQuery.Result> newSR;
450:                final Map<URL, URL[]> translatedRoots;
451:                final Map<URL, WeakValue> unknownRoots;
452:
453:                public Result(
454:                        final long timeStamp,
455:                        final List<? extends PathResourceImplementation> resources,
456:                        final List<? extends PathResourceImplementation> binaryResources,
457:                        final List<? extends PathResourceImplementation> unknownResources,
458:                        final Set<ClassPath> newCps,
459:                        final Map<URL, SourceForBinaryQuery.Result> newSR,
460:                        final Map<URL, URL[]> translatedRoots,
461:                        final Map<URL, WeakValue> unknownRoots) {
462:                    assert resources != null;
463:                    assert binaryResources != null;
464:                    assert unknownResources != null;
465:                    assert newCps != null;
466:                    assert newSR != null;
467:                    assert translatedRoots != null;
468:                    this .timeStamp = timeStamp;
469:                    this .resources = resources;
470:                    this .binaryResources = binaryResources;
471:                    this .unknownResources = unknownResources;
472:                    this .newCps = newCps;
473:                    this .newSR = newSR;
474:                    this .translatedRoots = translatedRoots;
475:                    this .unknownRoots = unknownRoots;
476:                }
477:            }
478:
479:            private class SourcePathImplementation implements 
480:                    ClassPathImplementation {
481:
482:                private List<PropertyChangeListener> listeners = new ArrayList<PropertyChangeListener>();
483:
484:                public List<? extends PathResourceImplementation> getResources() {
485:                    Request request;
486:                    synchronized (GlobalSourcePath.this ) {
487:                        if (GlobalSourcePath.this .resources != null) {
488:                            return GlobalSourcePath.this .resources;
489:                        }
490:                        request = new Request(
491:                                GlobalSourcePath.this .getTimeStamp(),
492:                                GlobalSourcePath.this .gpr
493:                                        .getPaths(ClassPath.SOURCE),
494:                                GlobalSourcePath.this .gpr
495:                                        .getPaths(ClassPath.BOOT),
496:                                GlobalSourcePath.this .gpr
497:                                        .getPaths(ClassPath.COMPILE),
498:                                new HashSet(GlobalSourcePath.this .activeCps),
499:                                new HashMap(GlobalSourcePath.this .sourceResults),
500:                                new HashMap<URL, WeakValue>(
501:                                        GlobalSourcePath.this .unknownRoots),
502:                                GlobalSourcePath.this .listener,
503:                                GlobalSourcePath.this .listener);
504:                    }
505:                    Result res = createResources(request);
506:                    if (GlobalSourcePath.this .debugCallBack != null) {
507:                        GlobalSourcePath.this .debugCallBack.run();
508:                    }
509:                    synchronized (this ) {
510:                        if (GlobalSourcePath.this .getTimeStamp() == res.timeStamp) {
511:                            if (GlobalSourcePath.this .resources == null) {
512:                                GlobalSourcePath.this .resources = res.resources;
513:                                GlobalSourcePath.this .binaryResources = res.binaryResources;
514:                                GlobalSourcePath.this .unknownResources = res.unknownResources;
515:                                GlobalSourcePath.this .activeCps = res.newCps;
516:                                GlobalSourcePath.this .sourceResults = res.newSR;
517:                                GlobalSourcePath.this .translatedRoots = res.translatedRoots;
518:                                GlobalSourcePath.this .unknownRoots = res.unknownRoots;
519:                            }
520:                            return GlobalSourcePath.this .resources;
521:                        } else {
522:                            return res.resources;
523:                        }
524:                    }
525:                }
526:
527:                public synchronized void addPropertyChangeListener(
528:                        PropertyChangeListener listener) {
529:                    assert listener != null;
530:                    if (this .listeners == null) {
531:                        this .listeners = new ArrayList<PropertyChangeListener>();
532:                    }
533:                    this .listeners.add(listener);
534:                }
535:
536:                public void removePropertyChangeListener(
537:                        PropertyChangeListener listener) {
538:                    assert listener != null;
539:                    if (this .listeners == null) {
540:                        return;
541:                    }
542:                    this .listeners.remove(listener);
543:                }
544:
545:                void firePropertyChange() {
546:                    PropertyChangeListener[] _listeners;
547:                    synchronized (this ) {
548:                        if (this .listeners == null) {
549:                            return;
550:                        }
551:                        _listeners = this .listeners
552:                                .toArray(new PropertyChangeListener[this .listeners
553:                                        .size()]);
554:                    }
555:                    PropertyChangeEvent event = new PropertyChangeEvent(this ,
556:                            PROP_RESOURCES, null, null);
557:                    for (PropertyChangeListener l : _listeners) {
558:                        l.propertyChange(event);
559:                    }
560:                }
561:            }
562:
563:            private class UnknownSourcePathImplementation implements 
564:                    ClassPathImplementation {
565:
566:                private List<PropertyChangeListener> listeners = new CopyOnWriteArrayList<PropertyChangeListener>();
567:
568:                public List<? extends PathResourceImplementation> getResources() {
569:                    Request request;
570:                    synchronized (GlobalSourcePath.this ) {
571:                        if (GlobalSourcePath.this .unknownResources != null) {
572:                            return GlobalSourcePath.this .unknownResources;
573:                        }
574:                        request = new Request(
575:                                GlobalSourcePath.this .getTimeStamp(),
576:                                GlobalSourcePath.this .gpr
577:                                        .getPaths(ClassPath.SOURCE),
578:                                GlobalSourcePath.this .gpr
579:                                        .getPaths(ClassPath.BOOT),
580:                                GlobalSourcePath.this .gpr
581:                                        .getPaths(ClassPath.COMPILE),
582:                                new HashSet(GlobalSourcePath.this .activeCps),
583:                                new HashMap(GlobalSourcePath.this .sourceResults),
584:                                new HashMap<URL, WeakValue>(
585:                                        GlobalSourcePath.this .unknownRoots),
586:                                GlobalSourcePath.this .listener,
587:                                GlobalSourcePath.this .listener);
588:                    }
589:                    Result res = createResources(request);
590:                    if (GlobalSourcePath.this .debugCallBack != null) {
591:                        GlobalSourcePath.this .debugCallBack.run();
592:                    }
593:                    synchronized (this ) {
594:                        if (GlobalSourcePath.this .getTimeStamp() == res.timeStamp) {
595:                            if (GlobalSourcePath.this .binaryResources == null) {
596:                                GlobalSourcePath.this .resources = res.resources;
597:                                GlobalSourcePath.this .binaryResources = res.binaryResources;
598:                                GlobalSourcePath.this .unknownResources = res.unknownResources;
599:                                GlobalSourcePath.this .activeCps = res.newCps;
600:                                GlobalSourcePath.this .sourceResults = res.newSR;
601:                                GlobalSourcePath.this .translatedRoots = res.translatedRoots;
602:                                GlobalSourcePath.this .unknownRoots = res.unknownRoots;
603:                            }
604:                            return GlobalSourcePath.this .unknownResources;
605:                        } else {
606:                            return res.unknownResources;
607:                        }
608:                    }
609:                }
610:
611:                public void addPropertyChangeListener(
612:                        PropertyChangeListener listener) {
613:                    assert listener != null;
614:                    this .listeners.add(listener);
615:                }
616:
617:                public void removePropertyChangeListener(
618:                        PropertyChangeListener listener) {
619:                    assert listener != null;
620:                    this .listeners.remove(listener);
621:                }
622:
623:                void firePropertyChange() {
624:                    PropertyChangeEvent event = new PropertyChangeEvent(this ,
625:                            PROP_RESOURCES, null, null);
626:                    for (PropertyChangeListener l : this .listeners) {
627:                        l.propertyChange(event);
628:                    }
629:                }
630:            }
631:
632:            private class BinaryPathImplementation implements 
633:                    ClassPathImplementation {
634:                private List<PropertyChangeListener> listeners = new ArrayList<PropertyChangeListener>();
635:
636:                public List<? extends PathResourceImplementation> getResources() {
637:                    Request request;
638:                    synchronized (GlobalSourcePath.this ) {
639:                        if (GlobalSourcePath.this .binaryResources != null) {
640:                            return GlobalSourcePath.this .binaryResources;
641:                        }
642:                        request = new Request(
643:                                GlobalSourcePath.this .getTimeStamp(),
644:                                GlobalSourcePath.this .gpr
645:                                        .getPaths(ClassPath.SOURCE),
646:                                GlobalSourcePath.this .gpr
647:                                        .getPaths(ClassPath.BOOT),
648:                                GlobalSourcePath.this .gpr
649:                                        .getPaths(ClassPath.COMPILE),
650:                                new HashSet(GlobalSourcePath.this .activeCps),
651:                                new HashMap(GlobalSourcePath.this .sourceResults),
652:                                new HashMap<URL, WeakValue>(
653:                                        GlobalSourcePath.this .unknownRoots),
654:                                GlobalSourcePath.this .listener,
655:                                GlobalSourcePath.this .listener);
656:                    }
657:                    Result res = createResources(request);
658:                    if (GlobalSourcePath.this .debugCallBack != null) {
659:                        GlobalSourcePath.this .debugCallBack.run();
660:                    }
661:                    synchronized (this ) {
662:                        if (GlobalSourcePath.this .getTimeStamp() == res.timeStamp) {
663:                            if (GlobalSourcePath.this .binaryResources == null) {
664:                                GlobalSourcePath.this .resources = res.resources;
665:                                GlobalSourcePath.this .binaryResources = res.binaryResources;
666:                                GlobalSourcePath.this .unknownResources = res.unknownResources;
667:                                GlobalSourcePath.this .activeCps = res.newCps;
668:                                GlobalSourcePath.this .sourceResults = res.newSR;
669:                                GlobalSourcePath.this .translatedRoots = res.translatedRoots;
670:                                GlobalSourcePath.this .unknownRoots = res.unknownRoots;
671:                            }
672:                            return GlobalSourcePath.this .binaryResources;
673:                        } else {
674:                            return res.binaryResources;
675:                        }
676:                    }
677:                }
678:
679:                public synchronized void addPropertyChangeListener(
680:                        PropertyChangeListener listener) {
681:                    assert listener != null;
682:                    if (this .listeners == null) {
683:                        this .listeners = new ArrayList<PropertyChangeListener>();
684:                    }
685:                    this .listeners.add(listener);
686:                }
687:
688:                public void removePropertyChangeListener(
689:                        PropertyChangeListener listener) {
690:                    assert listener != null;
691:                    if (this .listeners == null) {
692:                        return;
693:                    }
694:                    this .listeners.remove(listener);
695:                }
696:
697:                void firePropertyChange() {
698:                    PropertyChangeListener[] _listeners;
699:                    synchronized (this ) {
700:                        if (this .listeners == null) {
701:                            return;
702:                        }
703:                        _listeners = this .listeners
704:                                .toArray(new PropertyChangeListener[this .listeners
705:                                        .size()]);
706:                    }
707:                    PropertyChangeEvent event = new PropertyChangeEvent(this ,
708:                            PROP_RESOURCES, null, null);
709:                    for (PropertyChangeListener l : _listeners) {
710:                        l.propertyChange(event);
711:                    }
712:                }
713:            }
714:
715:            private class Listener implements  GlobalPathRegistryListener,
716:                    PropertyChangeListener, ChangeListener {
717:
718:                private Object lastPropagationId;
719:
720:                public void pathsAdded(GlobalPathRegistryEvent event) {
721:                    resetCacheAndFire();
722:                }
723:
724:                public void pathsRemoved(GlobalPathRegistryEvent event) {
725:                    resetCacheAndFire();
726:                }
727:
728:                public void propertyChange(PropertyChangeEvent evt) {
729:                    String propName = evt.getPropertyName();
730:                    if (ClassPath.PROP_ENTRIES.equals(propName)) {
731:                        resetCacheAndFire();
732:                    } else if (ClassPath.PROP_INCLUDES.equals(propName)) {
733:                        if (excludesListener != null) {
734:                            final Object newPropagationId = evt
735:                                    .getPropagationId();
736:                            if (newPropagationId == null
737:                                    || lastPropagationId != newPropagationId) {
738:                                PropertyChangeEvent event = new PropertyChangeEvent(
739:                                        this , PROP_INCLUDES, evt.getSource(),
740:                                        evt.getSource());
741:                                excludesListener.propertyChange(event);
742:                            }
743:                            lastPropagationId = newPropagationId;
744:                        }
745:                    }
746:                }
747:
748:                public void stateChanged(ChangeEvent event) {
749:                    resetCacheAndFire();
750:                }
751:            }
752:
753:            public static synchronized GlobalSourcePath getDefault() {
754:                if (instance == null) {
755:                    instance = new GlobalSourcePath();
756:                }
757:                return instance;
758:            }
759:
760:        }
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