Source Code Cross Referenced for GlobalDescriptorRegistry.java in  » IDE-Netbeans » vmd.analyzer » org » netbeans » modules » vmd » api » model » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » vmd.analyzer » org.netbeans.modules.vmd.api.model 
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:        package org.netbeans.modules.vmd.api.model;
042:
043:        import org.netbeans.modules.vmd.model.XMLComponentDescriptor;
044:        import org.netbeans.modules.vmd.model.XMLComponentProducer;
045:        import org.openide.ErrorManager;
046:        import org.openide.cookies.InstanceCookie;
047:        import org.openide.filesystems.*;
048:        import org.openide.loaders.DataFolder;
049:        import org.openide.loaders.DataObject;
050:        import org.openide.loaders.XMLDataObject;
051:        import org.openide.util.Mutex;
052:        import org.w3c.dom.Document;
053:        import org.xml.sax.SAXException;
054:        import java.io.IOException;
055:        import java.lang.ref.WeakReference;
056:        import java.util.*;
057:        import java.util.HashMap;
058:        import java.util.concurrent.CopyOnWriteArraySet;
059:        import org.openide.filesystems.FileSystem.AtomicAction;
060:        import org.openide.util.RequestProcessor;
061:
062:        /**
063:         * @author David Kaspar
064:         */
065:        // TODO - unique producers by their ids
066:        final class GlobalDescriptorRegistry {
067:
068:            // HINT - use WeakReference, then use FileChangeListener as WeakReference
069:
070:            private static final HashMap<String, WeakReference<GlobalDescriptorRegistry>> registries = new HashMap<String, WeakReference<GlobalDescriptorRegistry>>();
071:
072:            static GlobalDescriptorRegistry getGlobalDescriptorRegistry(
073:                    String projectType) {
074:                assert Debug.isFriend(DescriptorRegistry.class,
075:                        "getDescriptorRegistry")
076:                        || Debug.isFriend(ComponentSerializationSupport.class); // NOI18N
077:                synchronized (registries) {
078:                    WeakReference<GlobalDescriptorRegistry> ref = registries
079:                            .get(projectType);
080:                    GlobalDescriptorRegistry registry = ref != null ? ref.get()
081:                            : null;
082:                    if (registry == null) {
083:                        registry = new GlobalDescriptorRegistry(projectType);
084:                        registries.put(projectType,
085:                                new WeakReference<GlobalDescriptorRegistry>(
086:                                        registry));
087:                    }
088:                    return registry;
089:                }
090:            }
091:
092:            private final String projectType;
093:
094:            private final DataFolder registryFolder;
095:            private final DataFolder producersFolder;
096:            private final Mutex mutex = new Mutex();
097:
098:            private HashMap<TypeID, ComponentDescriptor> descriptors = new HashMap<TypeID, ComponentDescriptor>();
099:            private ArrayList<ComponentProducer> producers = new ArrayList<ComponentProducer>();
100:            private Map<TypeID, WeakReference<FileObject>> customFileObjects = new HashMap<TypeID, WeakReference<FileObject>>();
101:            private Map<TypeID, WeakReference<FileObject>> customProducerFileObjects = new HashMap<TypeID, WeakReference<FileObject>>();
102:            private final CopyOnWriteArraySet<DescriptorRegistryListener> listeners = new CopyOnWriteArraySet<DescriptorRegistryListener>();
103:
104:            private final HashMap<String, WeakReference<DescriptorRegistry>> projectID2projectRegistry = new HashMap<String, WeakReference<DescriptorRegistry>>();
105:
106:            private GlobalDescriptorRegistry(String projectType) {
107:                assert projectType != null && projectType.length() > 0 : "Invalid project-type: "
108:                        + projectType; // NOI18N
109:                this .projectType = projectType;
110:
111:                FileObject registryFileObject = Repository.getDefault()
112:                        .getDefaultFileSystem().findResource(
113:                                projectType + "/components"); // NOI18N
114:                if (registryFileObject != null) {
115:                    registryFolder = DataFolder.findFolder(registryFileObject);
116:                    registryFolder.getPrimaryFile().addFileChangeListener(
117:                            new FileChangeListener() {
118:                                public void fileFolderCreated(
119:                                        FileEvent fileEvent) {
120:                                }
121:
122:                                public void fileDataCreated(FileEvent fileEvent) {
123:                                    reloadLater();
124:                                }
125:
126:                                public void fileChanged(FileEvent fileEvent) {
127:                                    reloadLater();
128:                                }
129:
130:                                public void fileDeleted(FileEvent fileEvent) {
131:                                    reloadLater();
132:                                }
133:
134:                                public void fileRenamed(
135:                                        FileRenameEvent fileRenameEvent) {
136:                                    reloadLater();
137:                                }
138:
139:                                public void fileAttributeChanged(
140:                                        FileAttributeEvent fileAttributeEvent) {
141:                                    reloadLater();
142:                                }
143:                            });
144:                } else
145:                    registryFolder = null;
146:
147:                FileObject producersFileObject = Repository.getDefault()
148:                        .getDefaultFileSystem().findResource(
149:                                projectType + "/producers"); // NOI18N
150:                if (producersFileObject != null) {
151:                    producersFolder = DataFolder
152:                            .findFolder(producersFileObject);
153:                    producersFolder.getPrimaryFile().addFileChangeListener(
154:                            new FileChangeListener() {
155:                                public void fileFolderCreated(
156:                                        FileEvent fileEvent) {
157:                                }
158:
159:                                public void fileDataCreated(FileEvent fileEvent) {
160:                                    reloadLater();
161:                                }
162:
163:                                public void fileChanged(FileEvent fileEvent) {
164:                                    reloadLater();
165:                                }
166:
167:                                public void fileDeleted(FileEvent fileEvent) {
168:                                    reloadLater();
169:                                }
170:
171:                                public void fileRenamed(
172:                                        FileRenameEvent fileRenameEvent) {
173:                                    reloadLater();
174:                                }
175:
176:                                public void fileAttributeChanged(
177:                                        FileAttributeEvent fileAttributeEvent) {
178:                                    reloadLater();
179:                                }
180:                            });
181:                } else
182:                    producersFolder = null;
183:                reload();
184:            }
185:
186:            DataFolder getRegistryFolder() {
187:                assert Debug.isFriend(ComponentSerializationSupport.class,
188:                        "serializeComponentDescriptor")
189:                        || Debug.isFriend(ComponentSerializationSupport.class,
190:                                "refreshDescriptorRegistry"); // NOI18N
191:                return registryFolder;
192:            }
193:
194:            DataFolder getProducersFolder() {
195:                assert Debug.isFriend(ComponentSerializationSupport.class,
196:                        "serializeComponentProducer")
197:                        || Debug.isFriend(ComponentSerializationSupport.class,
198:                                "refreshDescriptorRegistry"); // NOI18N
199:                return producersFolder;
200:            }
201:
202:            DescriptorRegistry getProjectRegistry(String projectID) {
203:                assert Debug.isFriend(DescriptorRegistry.class,
204:                        "getDescriptorRegistry"); // NOI18N
205:
206:                synchronized (projectID2projectRegistry) {
207:                    WeakReference<DescriptorRegistry> ref = projectID2projectRegistry
208:                            .get(projectID);
209:                    DescriptorRegistry registry = ref != null ? ref.get()
210:                            : null;
211:                    if (registry == null) {
212:                        registry = new DescriptorRegistry(this ); // projectType, projectID);
213:                        projectID2projectRegistry
214:                                .put(projectID,
215:                                        new WeakReference<DescriptorRegistry>(
216:                                                registry));
217:                    }
218:                    return registry;
219:                }
220:            }
221:
222:            void readAccess(Runnable runnable) {
223:                assert Debug.isFriend(DescriptorRegistry.class)
224:                        || Debug.isFriend(ComponentSerializationSupport.class,
225:                                "runUnderDescriptorRegistryReadAccess"); // NOI18N
226:                mutex.readAccess(runnable);
227:            }
228:
229:            void writeAccess(final Runnable runnable) {
230:                assert Debug.isFriend(DescriptorRegistry.class,
231:                        "removeComponentDescriptor")
232:                        || Debug.isFriend(ComponentSerializationSupport.class,
233:                                "runUnderDescriptorRegistryWriteAccess"); // NOI18N
234:                mutex.writeAccess(runnable);
235:            }
236:
237:            private void reloadLater() {
238:                RequestProcessor.getDefault().post(new Runnable() {
239:                    public void run() {
240:                        reload();
241:                    }
242:                });
243:            }
244:
245:            void reload() {
246:                // TODO - method call assertion
247:                mutex.writeAccess(new Runnable() {
248:                    public void run() {
249:                        reloadCore();
250:                    }
251:                });
252:            }
253:
254:            private void reloadCore() {
255:                ArrayList<ComponentDescriptor> descriptorsList = new ArrayList<ComponentDescriptor>();
256:                HashMap<TypeID, ComponentDescriptor> tempDescriptors = new HashMap<TypeID, ComponentDescriptor>();
257:                ArrayList<ComponentProducer> tempProducers = new ArrayList<ComponentProducer>();
258:                Map<TypeID, FileObject> tempFileObjects = new HashMap<TypeID, FileObject>();
259:                Map<TypeID, FileObject> tempProducerFileObjects = new HashMap<TypeID, FileObject>();
260:
261:                if (registryFolder != null) {
262:                    Enumeration<DataObject> enumeration = registryFolder
263:                            .children();
264:
265:                    while (enumeration.hasMoreElements()) {
266:                        DataObject dataObject = enumeration.nextElement();
267:                        ComponentDescriptor descriptor = dao2descriptor(
268:                                dataObject, tempFileObjects);
269:
270:                        if (descriptor == null) {
271:                            Debug.warning("No descriptor", dataObject
272:                                    .getPrimaryFile().getNameExt()); // NOI18N
273:                            continue;
274:                        }
275:                        TypeDescriptor typeDescriptor = descriptor
276:                                .getTypeDescriptor();
277:                        if (typeDescriptor == null) {
278:                            Debug.warning("Null type descriptor", descriptor); // NOI18N
279:                            continue;
280:                        }
281:
282:                        final TypeID this Type = typeDescriptor.getThisType();
283:                        if (tempDescriptors.containsKey(this Type)) {
284:                            Debug.warning("Duplicate descriptor", this Type); // NOI18N
285:                            continue;
286:                        }
287:
288:                        descriptor.setSuperComponentDescriptor(null);
289:                        descriptor.setPropertyDescriptors(null);
290:                        descriptorsList.add(descriptor);
291:                        tempDescriptors.put(this Type, descriptor);
292:
293:                        ComponentProducer producer = ComponentProducer
294:                                .createDefault(descriptor);
295:                        if (producer != null)
296:                            tempProducers.add(producer);
297:                    }
298:                }
299:
300:                for (ComponentDescriptor descriptor : tempDescriptors.values())
301:                    resolveDescriptor(projectType, tempDescriptors, descriptor);
302:
303:                tempDescriptors = new HashMap<TypeID, ComponentDescriptor>();
304:                for (ComponentDescriptor descriptor : descriptorsList) {
305:                    TypeDescriptor typeDescriptor = descriptor
306:                            .getTypeDescriptor();
307:                    if (typeDescriptor.getSuperType() != null
308:                            && descriptor.getSuperDescriptor() == null) {
309:                        Debug
310:                                .warning("Unresolved super descriptor",
311:                                        descriptor); // NOI18N
312:                        continue;
313:                    }
314:                    tempDescriptors.put(typeDescriptor.getThisType(),
315:                            descriptor);
316:                }
317:
318:                if (producersFolder != null) {
319:                    Enumeration<DataObject> enumeration = producersFolder
320:                            .children();
321:                    while (enumeration.hasMoreElements()) {
322:                        DataObject dataObject = enumeration.nextElement();
323:                        ComponentProducer producer = dao2producer(dataObject,
324:                                tempProducerFileObjects);
325:                        if (producer == null) {
326:                            Debug.warning("No producer", dataObject
327:                                    .getPrimaryFile().getNameExt()); // NOI18N
328:                            continue;
329:                        }
330:
331:                        tempProducers.add(producer);
332:                    }
333:                }
334:
335:                Map<TypeID, WeakReference<FileObject>> tempCustomFileObjects = new HashMap<TypeID, WeakReference<FileObject>>();
336:                for (TypeID key : tempFileObjects.keySet()) {
337:                    if (tempDescriptors.containsKey(key)) {
338:                        tempCustomFileObjects.put(key, new WeakReference(
339:                                tempFileObjects.get(key)));
340:                    }
341:                }
342:
343:                Map<TypeID, WeakReference<FileObject>> tempCustomProducerFileObjects = new HashMap<TypeID, WeakReference<FileObject>>();
344:                for (TypeID key : tempProducerFileObjects.keySet()) {
345:                    if (tempDescriptors.containsKey(key)) {
346:                        tempCustomProducerFileObjects.put(key,
347:                                new WeakReference(tempProducerFileObjects
348:                                        .get(key)));
349:                    }
350:                }
351:
352:                descriptors = tempDescriptors;
353:                producers = tempProducers;
354:                customFileObjects = tempCustomFileObjects;
355:                customProducerFileObjects = tempCustomProducerFileObjects;
356:
357:                for (DescriptorRegistryListener listener : listeners)
358:                    listener.descriptorRegistryUpdated();
359:            }
360:
361:            static void resolveDescriptor(String projectType,
362:                    HashMap<TypeID, ComponentDescriptor> allDescriptors,
363:                    ComponentDescriptor descriptor) {
364:                resolveDescriptor(projectType, allDescriptors,
365:                        new HashSet<TypeID>(), descriptor);
366:            }
367:
368:            private static void resolveDescriptor(String projectType,
369:                    HashMap<TypeID, ComponentDescriptor> allDescriptors,
370:                    HashSet<TypeID> resolvingDescriptors,
371:                    ComponentDescriptor descriptor) {
372:                assert Debug.isFriend(GlobalDescriptorRegistry.class)
373:                        || Debug.isFriend(DescriptorRegistry.class);
374:
375:                TypeID this Type = descriptor.getTypeDescriptor().getThisType();
376:                if (this Type == null) {
377:                    Debug.warning("Null TypeID", descriptor); // NOI18N
378:                    return;
379:                }
380:                if (resolvingDescriptors.contains(this Type)) {
381:                    Debug
382:                            .warning(
383:                                    "There is inheritance-loop in CD registry - cannot resolve descriptor",
384:                                    descriptor); // NOI18N
385:                    return;
386:                }
387:                resolvingDescriptors.add(this Type);
388:                if (descriptor.getPropertyDescriptors() != null)
389:                    return;
390:
391:                TypeID super Type = descriptor.getTypeDescriptor()
392:                        .getSuperType();
393:                Collection<String> excludedNames = descriptor
394:                        .getExcludedPropertyDescriptorNames();
395:                List<PropertyDescriptor> declaredDescriptors = descriptor
396:                        .getDeclaredPropertyDescriptors();
397:                ArrayList<PropertyDescriptor> propertyDescriptors = new ArrayList<PropertyDescriptor>();
398:                ComponentDescriptor super Descriptor = null;
399:
400:                if (super Type != null) {
401:                    super Descriptor = allDescriptors.get(super Type);
402:                    if (super Descriptor == null) {
403:                        Debug.warning(
404:                                "Cannot find super descriptor for TypeID",
405:                                super Type); // NOI18N
406:                        return;
407:                    }
408:                    resolveDescriptor(projectType, allDescriptors,
409:                            super Descriptor);
410:
411:                    if (!super Descriptor.getTypeDescriptor().isCanDerive()) {
412:                        Debug.warning("Cannot derive from descriptor",
413:                                super Descriptor); // NOI18N
414:                        return;
415:                    }
416:
417:                    Collection<PropertyDescriptor> super PropertyDescriptors = super Descriptor
418:                            .getPropertyDescriptors();
419:                    if (super PropertyDescriptors == null) {
420:                        Debug
421:                                .warning(
422:                                        "Missing super property descriptors - cannot resolve descriptor",
423:                                        descriptor); // NOI18N
424:                        return;
425:                    }
426:
427:                    found: for (PropertyDescriptor propertyDescriptor : super PropertyDescriptors) {
428:                        String name = propertyDescriptor.getName();
429:                        if (name == null)
430:                            continue;
431:                        if (excludedNames != null)
432:                            for (String excludedName : excludedNames)
433:                                if (name.equals(excludedName))
434:                                    continue found;
435:                        if (declaredDescriptors != null)
436:                            for (PropertyDescriptor declaredDescriptor : declaredDescriptors)
437:                                if (name.equals(declaredDescriptor.getName()))
438:                                    continue found;
439:                        propertyDescriptors.add(propertyDescriptor);
440:                    }
441:                }
442:                if (declaredDescriptors != null) {
443:                    declared: for (int i = 0; i < declaredDescriptors.size(); i++) {
444:                        PropertyDescriptor declaredDescriptor = declaredDescriptors
445:                                .get(i);
446:
447:                        if (declaredDescriptor == null) {
448:                            Debug.warning("Null declared property descriptor",
449:                                    descriptor); // NOI18N
450:                            continue;
451:                        }
452:
453:                        String name = declaredDescriptor.getName();
454:                        if (name == null) {
455:                            Debug.warning(
456:                                    "Null declared property descriptor name",
457:                                    name); // NOI18N
458:                            continue;
459:                        }
460:
461:                        for (int j = 0; j < i; j++) {
462:                            PropertyDescriptor tested = declaredDescriptors
463:                                    .get(j);
464:                            if (tested != null && name.equals(tested.getName()))
465:                                continue declared;
466:                        }
467:
468:                        propertyDescriptors.add(declaredDescriptor);
469:                    }
470:                }
471:
472:                descriptor.setSuperComponentDescriptor(super Descriptor);
473:
474:                descriptor.setPropertyDescriptors(null);
475:                PropertiesProcessor.postProcessDescriptor(projectType,
476:                        descriptor, propertyDescriptors);
477:                descriptor.setPropertyDescriptors(propertyDescriptors);
478:            }
479:
480:            private ComponentDescriptor dao2descriptor(DataObject dataObject,
481:                    Map<TypeID, FileObject> fileObjects) {
482:                InstanceCookie.Of instanceCookie = dataObject
483:                        .getCookie(InstanceCookie.Of.class);
484:                if (instanceCookie != null) {
485:                    try {
486:                        Object instance = instanceCookie.instanceCreate();
487:                        if (instance instanceof  ComponentDescriptor)
488:                            return (ComponentDescriptor) instance;
489:                    } catch (IOException e) {
490:                        Debug.warning(e);
491:                    } catch (ClassNotFoundException e) {
492:                        Debug.warning(e);
493:                    }
494:                    Debug.warning("Instance is not ComponentDescriptor class"); // NOI18N
495:                    return null;
496:                }
497:
498:                if (dataObject instanceof  XMLDataObject) {
499:                    ComponentDescriptor descriptor = deserializeComponentDescriptorFromXML((XMLDataObject) dataObject);
500:                    fileObjects.put(descriptor.getTypeDescriptor()
501:                            .getThisType(), dataObject.getPrimaryFile());
502:                    return descriptor;
503:                }
504:                return null;
505:            }
506:
507:            private ComponentProducer dao2producer(DataObject dataObject,
508:                    Map<TypeID, FileObject> fileObjects) {
509:                InstanceCookie.Of instanceCookie = dataObject
510:                        .getCookie(InstanceCookie.Of.class);
511:                if (instanceCookie != null) {
512:                    try {
513:                        Object instance = instanceCookie.instanceCreate();
514:                        if (instance instanceof  ComponentProducer)
515:                            return (ComponentProducer) instance;
516:                    } catch (IOException e) {
517:                        Debug.warning(e);
518:                    } catch (ClassNotFoundException e) {
519:                        Debug.warning(e);
520:                    }
521:                    Debug.warning("Instance is not ComponentProducer class"); // NOI18N
522:                    return null;
523:                }
524:                if (dataObject instanceof  XMLDataObject) {
525:                    return deserializeComponentCreatorFromXML(
526:                            (XMLDataObject) dataObject, fileObjects);
527:                }
528:                return null;
529:            }
530:
531:            private ComponentDescriptor deserializeComponentDescriptorFromXML(
532:                    XMLDataObject xmlDataObject) {
533:                Document document;
534:                try {
535:                    document = xmlDataObject.getDocument();
536:                    if (document == null)
537:                        return null;
538:                } catch (IOException e) {
539:                    ErrorManager.getDefault().notify(e);
540:                    return null;
541:                } catch (SAXException e) {
542:                    ErrorManager.getDefault().notify(e);
543:                    return null;
544:                }
545:                XMLComponentDescriptor descriptor = new XMLComponentDescriptor();
546:                if (descriptor.deserialize(projectType, document))
547:                    return descriptor;
548:                Debug.warning("Error during deserialization", xmlDataObject
549:                        .getPrimaryFile()); // NOI18N
550:                return null;
551:            }
552:
553:            private ComponentProducer deserializeComponentCreatorFromXML(
554:                    XMLDataObject xmlDataObject,
555:                    Map<TypeID, FileObject> fileObjects) {
556:                Document document;
557:                try {
558:                    document = xmlDataObject.getDocument();
559:                    if (document == null)
560:                        return null;
561:                } catch (IOException e) {
562:                    ErrorManager.getDefault().notify(e);
563:                    return null;
564:                } catch (SAXException e) {
565:                    ErrorManager.getDefault().notify(e);
566:                    return null;
567:                }
568:                XMLComponentProducer producer = XMLComponentProducer
569:                        .deserialize(projectType, document);
570:                if (producer != null) {
571:                    fileObjects.put(producer.getMainComponentTypeID(),
572:                            xmlDataObject.getPrimaryFile());
573:                    return producer;
574:                }
575:                Debug.warning("Error during deserialization", xmlDataObject
576:                        .getPrimaryFile()); // NOI18N
577:                return null;
578:            }
579:
580:            Collection<ComponentDescriptor> getComponentDescriptors() {
581:                return Collections.unmodifiableCollection(descriptors.values());
582:            }
583:
584:            List<ComponentProducer> getComponentProducers() {
585:                return Collections.unmodifiableList(producers);
586:            }
587:
588:            void addRegistryListener(final DescriptorRegistryListener listener) {
589:                listeners.add(listener);
590:            }
591:
592:            void removeRegistryListener(
593:                    final DescriptorRegistryListener listener) {
594:                listeners.remove(listener);
595:            }
596:
597:            void removeComponentDescriptor(TypeID typeID) {
598:                assert Debug.isFriend(
599:                        DescriptorRegistry.RemoveComponentDescriptorTask.class,
600:                        "run"); // NOI18N
601:
602:                WeakReference<FileObject> weakReference = customFileObjects
603:                        .get(typeID);
604:                final FileObject fo = weakReference != null ? weakReference
605:                        .get() : null;
606:                if (fo != null) {
607:                    try {
608:                        Repository.getDefault().getDefaultFileSystem()
609:                                .runAtomicAction(new AtomicAction() {
610:                                    public void run() {
611:                                        try {
612:                                            fo.delete();
613:
614:                                        } catch (IOException ex) {
615:                                            throw Debug.error(ex);
616:                                        }
617:                                    }
618:                                });
619:                    } catch (IOException ex) {
620:                        throw Debug.error(ex);
621:                    }
622:                }
623:
624:                weakReference = customProducerFileObjects.get(typeID);
625:                final FileObject fo1 = weakReference != null ? weakReference
626:                        .get() : null;
627:                if (fo1 != null) {
628:                    try {
629:                        Repository.getDefault().getDefaultFileSystem()
630:                                .runAtomicAction(new AtomicAction() {
631:                                    public void run() {
632:                                        try {
633:                                            fo1.delete();
634:
635:                                        } catch (IOException ex) {
636:                                            throw Debug.error(ex);
637:                                        }
638:                                    }
639:                                });
640:                    } catch (IOException ex) {
641:                        throw Debug.error(ex);
642:                    }
643:                }
644:            }
645:        }
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