Source Code Cross Referenced for StyleBlackboardImpl.java in  » GIS » udig-1.1 » net » refractions » udig » project » internal » impl » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » udig 1.1 » net.refractions.udig.project.internal.impl 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package net.refractions.udig.project.internal.impl;
002:
003:        import java.io.IOException;
004:        import java.io.StringReader;
005:        import java.io.StringWriter;
006:        import java.net.URL;
007:        import java.util.Arrays;
008:        import java.util.Collection;
009:        import java.util.HashMap;
010:        import java.util.Iterator;
011:        import java.util.List;
012:        import java.util.concurrent.CopyOnWriteArraySet;
013:        import java.util.concurrent.locks.Lock;
014:
015:        import net.refractions.udig.core.internal.ExtensionPointProcessor;
016:        import net.refractions.udig.core.internal.ExtensionPointUtil;
017:        import net.refractions.udig.project.BlackboardEvent;
018:        import net.refractions.udig.project.IBlackboardListener;
019:        import net.refractions.udig.project.StyleContent;
020:        import net.refractions.udig.project.internal.ProjectFactory;
021:        import net.refractions.udig.project.internal.ProjectPackage;
022:        import net.refractions.udig.project.internal.ProjectPlugin;
023:        import net.refractions.udig.project.internal.StyleBlackboard;
024:        import net.refractions.udig.project.internal.StyleEntry;
025:        import net.refractions.udig.ui.UDIGDisplaySafeLock;
026:        import net.refractions.udig.ui.graphics.SLDs;
027:
028:        import org.eclipse.core.runtime.IConfigurationElement;
029:        import org.eclipse.core.runtime.IExtension;
030:        import org.eclipse.core.runtime.IProgressMonitor;
031:        import org.eclipse.emf.common.notify.NotificationChain;
032:        import org.eclipse.emf.common.util.EList;
033:        import org.eclipse.emf.ecore.EClass;
034:        import org.eclipse.emf.ecore.EStructuralFeature;
035:        import org.eclipse.emf.ecore.InternalEObject;
036:        import org.eclipse.emf.ecore.impl.EObjectImpl;
037:        import org.eclipse.emf.ecore.util.EObjectContainmentEList;
038:        import org.eclipse.emf.ecore.util.InternalEList;
039:        import org.eclipse.ui.WorkbenchException;
040:        import org.eclipse.ui.XMLMemento;
041:        import org.geotools.styling.Style;
042:        import org.geotools.styling.StyledLayerDescriptor;
043:        import org.geotools.styling.StyledLayerDescriptorImpl;
044:        import org.geotools.styling.UserLayer;
045:        import org.geotools.styling.UserLayerImpl;
046:
047:        /**
048:         * The default implementation.
049:         * 
050:         * @author Jesse
051:         * @since 1.0.0
052:         * @generated
053:         */
054:        public class StyleBlackboardImpl extends EObjectImpl implements 
055:                StyleBlackboard {
056:            /**
057:             * <!-- begin-user-doc --> <!-- end-user-doc -->
058:             * @generated
059:             */
060:            public static final String copyright = "uDig - User Friendly Desktop Internet GIS client http://udig.refractions.net (C) 2004, Refractions Research Inc. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; version 2.1 of the License. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details."; //$NON-NLS-1$
061:
062:            /**
063:             * The cached value of the '{@link #getContent() <em>Content</em>}' containment reference list.
064:             * <!-- begin-user-doc --> <!-- end-user-doc -->
065:             * @see #getContent()
066:             * @generated
067:             * @ordered
068:             */
069:            protected EList content = null;
070:
071:            Lock contentLock = new UDIGDisplaySafeLock();
072:
073:            /**
074:             * Map of style id to StyleContent
075:             * 
076:             * @uml.property name="id2content"
077:             * @uml.associationEnd qualifier="key:java.lang.Object
078:             *                     net.refractions.udig.project.StyleContent"
079:             * @generated NOT
080:             */
081:            protected HashMap<String, StyleContent> id2content = new HashMap<String, StyleContent>();
082:
083:            /**
084:             * <!-- begin-user-doc --> <!-- end-user-doc -->
085:             * @generated
086:             */
087:            protected StyleBlackboardImpl() {
088:                super ();
089:            }
090:
091:            /**
092:             * <!-- begin-user-doc --> <!-- end-user-doc -->
093:             * @generated
094:             */
095:            protected EClass eStaticClass() {
096:                return ProjectPackage.eINSTANCE.getStyleBlackboard();
097:            }
098:
099:            /**
100:             * <!-- begin-user-doc --> <!-- end-user-doc -->
101:             * @generated
102:             */
103:            @SuppressWarnings("unchecked")
104:            public List<StyleEntry> getContent() {
105:                if (content == null) {
106:                    content = new EObjectContainmentEList(StyleEntry.class,
107:                            this , ProjectPackage.STYLE_BLACKBOARD__CONTENT) {
108:
109:                        /** long serialVersionUID field */
110:                        private static final long serialVersionUID = 1L;
111:
112:                        @Override
113:                        protected Object assign(int index, Object object) {
114:                            contentLock.lock();
115:                            try {
116:                                return super .assign(index, object);
117:                            } finally {
118:                                contentLock.unlock();
119:                            }
120:                        }
121:
122:                        @Override
123:                        protected void doClear() {
124:                            contentLock.lock();
125:                            try {
126:                                super .doClear();
127:                            } finally {
128:                                contentLock.unlock();
129:                            }
130:                        }
131:
132:                        @Override
133:                        protected Object doRemove(int index) {
134:                            contentLock.lock();
135:                            try {
136:                                return super .doRemove(index);
137:                            } finally {
138:                                contentLock.unlock();
139:                            }
140:                        }
141:
142:                    };
143:                }
144:                return content;
145:            }
146:
147:            /**
148:             * <!-- begin-user-doc --> <!-- end-user-doc -->
149:             * 
150:             * @generated NOT
151:             */
152:            public Object get(String styleId) {
153:                StyleEntry entry = getEntry(styleId);
154:                if (entry == null)
155:                    return null;
156:                return getObject(entry);
157:            }
158:
159:            private StyleEntry getEntry(String styleId) {
160:                StyleEntry entry = null;
161:                contentLock.lock();
162:                try {
163:                    for (Iterator seItr = getContent().iterator(); seItr
164:                            .hasNext();) {
165:                        StyleEntry se = (StyleEntry) seItr.next();
166:                        if (se.getID().equals(styleId)) {
167:                            entry = se;
168:                            break;
169:                        }
170:                    }
171:                } finally {
172:                    contentLock.unlock();
173:                }
174:                return entry;
175:            }
176:
177:            /**
178:             * <!-- begin-user-doc --> <!-- end-user-doc -->
179:             * 
180:             * @generated NOT
181:             */
182:            public Object lookup(Class<?> theClass) {
183:                StyleEntry entry = null;
184:                contentLock.lock();
185:                try {
186:                    for (Iterator seItr = getContent().iterator(); seItr
187:                            .hasNext();) {
188:                        StyleEntry se = (StyleEntry) seItr.next();
189:                        if (se.getStyleClass() == null) {
190:                            StyleContent styleContent = getStyleContent(se
191:                                    .getID());
192:                            if (styleContent != null)
193:                                se.setStyleClass(styleContent.getStyleClass());
194:                            else {
195:                                continue;
196:                            }
197:                        }
198:                        if (theClass.isAssignableFrom(se.getStyleClass())) {
199:                            entry = se;
200:                            break;
201:                        }
202:                    }
203:                } finally {
204:                    contentLock.unlock();
205:                }
206:
207:                if (entry == null)
208:                    return null;
209:                return getObject(entry);
210:            }
211:
212:            /**
213:             * Gets the style object from a StyleEntry. Either from the StyleEntry cache or from the
214:             * StyleContent associated with the entry.
215:             * 
216:             * @generated NOT
217:             */
218:            protected Object getObject(StyleEntry styleEntry) {
219:                // reload style state if necessary
220:                if (styleEntry.getStyle() == null) {
221:                    try {
222:                        StyleContent styleContent = getStyleContent(styleEntry
223:                                .getID());
224:                        XMLMemento memento = XMLMemento
225:                                .createReadRoot(new StringReader(styleEntry
226:                                        .getMemento()));
227:                        Object style = styleContent.load(memento);
228:                        styleEntry.setStyle(style);
229:                    } catch (WorkbenchException e) {
230:                        e.printStackTrace();
231:                    }
232:                }
233:
234:                return styleEntry.getStyle();
235:            }
236:
237:            /**
238:             * <!-- begin-user-doc --> <!-- end-user-doc -->
239:             * 
240:             * @generated NOT
241:             */
242:            public boolean contains(String styleId) {
243:                return get(styleId) != null;
244:            }
245:
246:            /**
247:             * <!-- begin-user-doc --> <!-- end-user-doc -->
248:             * 
249:             * @generated NOT
250:             */
251:            @SuppressWarnings("unchecked")
252:            public void put(String styleId, Object style) {
253:                remove(styleId);
254:
255:                //Validate (add an SLD to the style if one does not exist)
256:                //TODO: move to extension point
257:                if (style instanceof  Style) {
258:                    Style theStyle = (Style) style;
259:                    Object SLD = SLDs.styledLayerDescriptor(theStyle);
260:                    if (SLD == null) {
261:                        StyledLayerDescriptor sld = new StyledLayerDescriptorImpl();
262:                        UserLayer layer = new UserLayerImpl();
263:                        layer.getNote().setParent(sld);
264:                        theStyle.getNote().setParent(layer);
265:                    }
266:                }
267:
268:                StyleEntry se = ProjectFactory.eINSTANCE.createStyleEntry();
269:
270:                Object oldValue = se.getStyle();
271:
272:                se.setID(styleId);
273:                se.setStyle(style);
274:
275:                content.add(se);
276:
277:                StyleContent styleContent = getStyleContent(styleId);
278:
279:                if (styleContent == null)
280:                    return;
281:                try {
282:                    // save the state of the style
283:                    XMLMemento memento = XMLMemento
284:                            .createWriteRoot("styleEntry"); //$NON-NLS-1$
285:                    styleContent.save(memento, style);
286:
287:                    StringWriter writer = new StringWriter();
288:                    memento.save(writer);
289:                    se.setMemento(writer.getBuffer().toString());
290:
291:                    writer.close();
292:                } catch (IOException e) {
293:                    e.printStackTrace();
294:                }
295:
296:                BlackboardEvent event = new BlackboardEvent(this , styleId,
297:                        oldValue, style);
298:                for (IBlackboardListener l : listeners) {
299:                    try {
300:                        l.blackBoardChanged(event);
301:                    } catch (Exception e) {
302:                        ProjectPlugin.log("", e); //$NON-NLS-1$
303:                    }
304:                }
305:
306:            }
307:
308:            /**
309:             * <!-- begin-user-doc --> <!-- end-user-doc -->
310:             * 
311:             * @generated NOT
312:             */
313:            public void put(URL url, IProgressMonitor monitor) {
314:                createStyleEntry(url, monitor);
315:            }
316:
317:            /**
318:             * @generated NOT
319:             */
320:            private StyleContent getStyleContent(String styleId) {
321:
322:                // look in local cache first
323:                StyleContent styleContent = id2content.get(styleId);
324:                if (styleContent == null) {
325:                    loadStyleContent(styleId);
326:                    styleContent = id2content.get(styleId);
327:                }
328:                return styleContent;
329:            }
330:
331:            /**
332:             * @generated NOT
333:             */
334:            private void loadStyleContent(final String styleId) {
335:
336:                ExtensionPointProcessor p = new ExtensionPointProcessor() {
337:                    boolean found = false;
338:
339:                    public void process(IExtension extension,
340:                            IConfigurationElement element) throws Exception {
341:                        if (!found
342:                                && element.getAttribute("id").equals(styleId)) { //$NON-NLS-1$
343:                            found = true;
344:                            id2content.put(styleId, (StyleContent) element
345:                                    .createExecutableExtension("class") //$NON-NLS-1$
346:                                    );
347:                        }
348:                    }
349:                };
350:                ExtensionPointUtil.process(ProjectPlugin.getPlugin(),
351:                        StyleContent.XPID, p);
352:
353:            }
354:
355:            class URLProcessor implements  ExtensionPointProcessor {
356:                boolean found = false;
357:
358:                Object style = null;
359:
360:                String id;
361:
362:                URL url;
363:
364:                IProgressMonitor monitor;
365:
366:                public URLProcessor(URL url, IProgressMonitor monitor) {
367:                    this .url = url;
368:                    this .monitor = monitor;
369:                }
370:
371:                /*
372:                 * @see net.refractions.udig.core.internal.ExtensionPointProcessor#process(org.eclipse.core.runtime.IExtension,
373:                 *      org.eclipse.core.runtime.IConfigurationElement)
374:                 */
375:                public void process(IExtension extension,
376:                        IConfigurationElement element) throws Exception {
377:                    if (found)
378:                        return;
379:
380:                    StyleContent styleContent = (StyleContent) element
381:                            .createExecutableExtension("class"); //$NON-NLS-1$
382:                    style = styleContent.load(url, monitor);
383:                    if (style != null) {
384:                        id = styleContent.getId();
385:                        id2content.put(styleContent.getId(), styleContent);
386:                        found = true;
387:                    }
388:                }
389:            }
390:
391:            /**
392:             * @generated NOT
393:             */
394:            private Object createStyleEntry(URL url, IProgressMonitor monitor) {
395:                URLProcessor p = new URLProcessor(url, monitor);
396:                ExtensionPointUtil.process(ProjectPlugin.getPlugin(),
397:                        StyleContent.XPID, p);
398:
399:                if (p.style != null) {
400:                    put(p.id, p.style);
401:                }
402:
403:                return p.style;
404:            }
405:
406:            /**
407:             * <!-- begin-user-doc --> <!-- end-user-doc -->
408:             * 
409:             * @generated NOT
410:             */
411:            public Object remove(String styleId) {
412:                Object style = null;
413:                contentLock.lock();
414:                try {
415:                    for (Iterator seItr = getContent().iterator(); seItr
416:                            .hasNext();) {
417:                        StyleEntry se = (StyleEntry) seItr.next();
418:                        if (se.getID().equals(styleId)) {
419:                            style = se.getStyle();
420:                            seItr.remove();
421:                        }
422:                    }
423:                } finally {
424:                    contentLock.unlock();
425:                }
426:
427:                return style;
428:            }
429:
430:            /**
431:             * <!-- begin-user-doc --> TODO: This method does not actually clone the underlying style
432:             * objects, which it should. <!-- end-user-doc -->
433:             * @throws CloneNotSupportedException 
434:             * 
435:             * @generated NOT
436:             */
437:            public Object clone() {
438:                // clone the entire blackboard
439:                StyleBlackboardImpl clone;
440:                try {
441:                    clone = (StyleBlackboardImpl) super .clone();
442:                } catch (CloneNotSupportedException e) {
443:                    clone = (StyleBlackboardImpl) ProjectFactory.eINSTANCE
444:                            .createStyleBlackboard();
445:                }
446:
447:                clone.content = null;
448:
449:                contentLock.lock();
450:                try {
451:                    for (Iterator seItr = getContent().iterator(); seItr
452:                            .hasNext();) {
453:                        StyleEntry styleEntry = (StyleEntry) seItr.next();
454:
455:                        StyleEntry styleEntryClone = ProjectFactory.eINSTANCE
456:                                .createStyleEntry();
457:
458:                        // clone the entry by copying the id + memento over
459:                        styleEntryClone.setID(styleEntry.getID());
460:                        styleEntryClone.setMemento(styleEntry.getMemento());
461:                        clone.getContent().add(styleEntryClone);
462:                    }
463:                } finally {
464:                    contentLock.unlock();
465:                }
466:                return clone;
467:            }
468:
469:            /**
470:             * <!-- begin-user-doc --> <!-- end-user-doc -->
471:             * @generated
472:             */
473:            @SuppressWarnings("unchecked")
474:            public NotificationChain eInverseRemove(InternalEObject otherEnd,
475:                    int featureID, Class baseClass, NotificationChain msgs) {
476:                if (featureID >= 0) {
477:                    switch (eDerivedStructuralFeatureID(featureID, baseClass)) {
478:                    case ProjectPackage.STYLE_BLACKBOARD__CONTENT:
479:                        return ((InternalEList) getContent()).basicRemove(
480:                                otherEnd, msgs);
481:                    default:
482:                        return eDynamicInverseRemove(otherEnd, featureID,
483:                                baseClass, msgs);
484:                    }
485:                }
486:                return eBasicSetContainer(null, featureID, msgs);
487:            }
488:
489:            /**
490:             * <!-- begin-user-doc --> <!-- end-user-doc -->
491:             * @generated
492:             */
493:            public Object eGet(EStructuralFeature eFeature, boolean resolve) {
494:                switch (eDerivedStructuralFeatureID(eFeature)) {
495:                case ProjectPackage.STYLE_BLACKBOARD__CONTENT:
496:                    return getContent();
497:                }
498:                return eDynamicGet(eFeature, resolve);
499:            }
500:
501:            /**
502:             * <!-- begin-user-doc --> <!-- end-user-doc -->
503:             * @generated
504:             */
505:            @SuppressWarnings("unchecked")
506:            public void eSet(EStructuralFeature eFeature, Object newValue) {
507:                switch (eDerivedStructuralFeatureID(eFeature)) {
508:                case ProjectPackage.STYLE_BLACKBOARD__CONTENT:
509:                    getContent().clear();
510:                    getContent().addAll((Collection) newValue);
511:                    return;
512:                }
513:                eDynamicSet(eFeature, newValue);
514:            }
515:
516:            /**
517:             * <!-- begin-user-doc --> <!-- end-user-doc -->
518:             * @generated
519:             */
520:            public void eUnset(EStructuralFeature eFeature) {
521:                switch (eDerivedStructuralFeatureID(eFeature)) {
522:                case ProjectPackage.STYLE_BLACKBOARD__CONTENT:
523:                    getContent().clear();
524:                    return;
525:                }
526:                eDynamicUnset(eFeature);
527:            }
528:
529:            /**
530:             * <!-- begin-user-doc --> <!-- end-user-doc -->
531:             * @generated
532:             */
533:            public boolean eIsSet(EStructuralFeature eFeature) {
534:                switch (eDerivedStructuralFeatureID(eFeature)) {
535:                case ProjectPackage.STYLE_BLACKBOARD__CONTENT:
536:                    return content != null && !content.isEmpty();
537:                }
538:                return eDynamicIsSet(eFeature);
539:            }
540:
541:            /**
542:             * @see net.refractions.udig.project.IBlackboard#getFloat(java.lang.String)
543:             */
544:            public Float getFloat(String key) {
545:                if (contains(key)) {
546:                    Object value = get(key);
547:                    if (value instanceof  Float) {
548:                        return (Float) value;
549:                    }
550:                }
551:                return null;
552:            }
553:
554:            public Integer getInteger(String key) {
555:                if (contains(key)) {
556:                    Object value = get(key);
557:                    if (value instanceof  Integer) {
558:                        return (Integer) value;
559:                    }
560:                }
561:                return null;
562:            }
563:
564:            public String getString(String key) {
565:                if (contains(key)) {
566:                    Object value = get(key);
567:                    if (value instanceof  String) {
568:                        return (String) value;
569:                    }
570:                }
571:                return null;
572:            }
573:
574:            public void putFloat(String key, float value) {
575:                put(key, value);
576:            }
577:
578:            public void putInteger(String key, int value) {
579:                put(key, value);
580:            }
581:
582:            public void putString(String key, String value) {
583:                put(key, value);
584:            }
585:
586:            public void clear() {
587:                if (content == null)
588:                    return;
589:                content.clear();
590:
591:                for (IBlackboardListener l : listeners) {
592:                    try {
593:                        l.blackBoardCleared(this );
594:                    } catch (Exception e) {
595:                        ProjectPlugin.log("", e); //$NON-NLS-1$
596:                    }
597:                }
598:            }
599:
600:            public void flush() {
601:
602:            }
603:
604:            CopyOnWriteArraySet<IBlackboardListener> listeners = new CopyOnWriteArraySet<IBlackboardListener>();
605:
606:            public boolean addListener(IBlackboardListener listener) {
607:                return listeners.add(listener);
608:            }
609:
610:            public boolean removeListener(IBlackboardListener listener) {
611:                return listeners.remove(listener);
612:            }
613:
614:            public void setSelected(String[] ids) {
615:                List<String> idList = Arrays.asList(ids);
616:                contentLock.lock();
617:                try {
618:                    List<StyleEntry> entries = getContent();
619:                    for (StyleEntry entry : entries) {
620:                        if (idList.contains(entry.getID()))
621:                            entry.setSelected(true);
622:                        else
623:                            entry.setSelected(false);
624:                    }
625:                } finally {
626:                    contentLock.unlock();
627:                }
628:
629:            }
630:
631:            public boolean isSelected(String styleId) {
632:                StyleEntry entry = getEntry(styleId);
633:
634:                if (entry != null && entry.isSelected())
635:                    return true;
636:                return false;
637:            }
638:
639:        } // StyleBlackboardImpl
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