Source Code Cross Referenced for PropertiesDataObject.java in  » IDE-Netbeans » properties » org » netbeans » modules » properties » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » properties » org.netbeans.modules.properties 
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 1997-2007 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.properties;
043:
044:        import java.beans.PropertyChangeEvent;
045:        import java.beans.PropertyChangeListener;
046:        import java.io.ObjectInputStream;
047:        import java.io.IOException;
048:        import java.util.ArrayList;
049:        import java.util.Comparator;
050:        import java.util.Iterator;
051:        import java.util.TreeSet;
052:        import java.util.logging.Logger;
053:        import org.openide.cookies.SaveCookie;
054:
055:        import org.openide.filesystems.FileObject;
056:        import org.openide.filesystems.FileUtil;
057:        import org.openide.loaders.DataFolder;
058:        import org.openide.loaders.DataNode;
059:        import org.openide.loaders.DataObject;
060:        import org.openide.loaders.DataObjectExistsException;
061:        import org.openide.loaders.MultiDataObject;
062:        import org.openide.nodes.Children;
063:        import org.openide.nodes.CookieSet;
064:        import org.openide.nodes.Node;
065:        import org.openide.util.Lookup;
066:        import org.openide.util.WeakListeners;
067:        import org.openide.util.lookup.Lookups;
068:        import org.openide.util.lookup.ProxyLookup;
069:        import static java.util.logging.Level.FINER;
070:
071:        /**
072:         * Object that provides main functionality for properties data loader.
073:         * Represents set of .properties files with same basic name (name without locale postfix).
074:         *
075:         * @author Ian Formanek
076:         */
077:        public final class PropertiesDataObject extends MultiDataObject
078:                implements  CookieSet.Factory {
079:
080:            /** Generated Serialized Version UID. */
081:            static final long serialVersionUID = 4795737295255253334L;
082:
083:            static final Logger LOG = Logger
084:                    .getLogger(PropertiesDataObject.class.getName());
085:
086:            /** Structural view of the dataobject */
087:            private transient BundleStructure bundleStructure;
088:
089:            /** Open support for this data object. Provides editable table view on bundle. */
090:            private transient PropertiesOpen openSupport;
091:
092:            /** Lock used for synchronization of <code>openSupport</code> instance creation */
093:            private final transient Object OPEN_SUPPORT_LOCK = new Object();
094:
095:            // Hack due having lock on secondaries, can't override handleCopy, handleMove at all.
096:            /** Suffix used by copying/moving dataObject. */
097:            private transient String pasteSuffix;
098:
099:            /** */
100:            private Lookup lookup;
101:
102:            /**
103:             * Constructs a <code>PropertiesDataObject</code> for a specified
104:             * primary file.
105:             *
106:             * @param  primaryFile  primary file to creata a data object for
107:             * @param  loader  data loader which recognized the primary file
108:             * @exception   org.openide.loaders.DataObjectExistsException 
109:             *              if another <code>DataObject</code> already exists
110:             *              for the specified file
111:             */
112:            public PropertiesDataObject(final FileObject primaryFile,
113:                    final PropertiesDataLoader loader)
114:                    throws DataObjectExistsException {
115:                super (primaryFile, loader);
116:                // use editor support
117:                initialize();
118:            }
119:
120:            /**
121:             */
122:            PropertiesEncoding getEncoding() {
123:                return ((PropertiesDataLoader) getLoader()).getEncoding();
124:            }
125:
126:            private Lookup getSuperLookup() {
127:                return super .getLookup();
128:            }
129:
130:            @Override
131:            public Lookup getLookup() {
132:                if (lookup == null) {
133:                    lookup = new ProxyLookup(Lookups.singleton(getEncoding()),
134:                            Lookups.proxy(new Lookup.Provider() {
135:                                public Lookup getLookup() {
136:                                    return getSuperLookup();
137:                                }
138:                            }));
139:                }
140:                return lookup;
141:            }
142:
143:            /** Initializes the object. Used by construction and deserialized. */
144:            private void initialize() {
145:                bundleStructure = null;
146:                Class<? extends Node.Cookie>[] arr = (Class<Node.Cookie>[]) new Class[2];
147:                arr[0] = PropertiesOpen.class;
148:                arr[1] = PropertiesEditorSupport.class;
149:                getCookieSet().add(arr, this );
150:            }
151:
152:            /** Implements <code>CookieSet.Factory</code> interface method. */
153:            @SuppressWarnings("unchecked")
154:            public <T extends Node.Cookie> T createCookie(Class<T> clazz) {
155:                if (clazz.isAssignableFrom(PropertiesOpen.class)) {
156:                    return (T) getOpenSupport();
157:                } else if (clazz
158:                        .isAssignableFrom(PropertiesEditorSupport.class)) {
159:                    return (T) ((PropertiesFileEntry) getPrimaryEntry())
160:                            .getPropertiesEditor();
161:                } else {
162:                    return null;
163:                }
164:            }
165:
166:            // Accessibility from PropertiesOpen:
167:            CookieSet getCookieSet0() {
168:                return getCookieSet();
169:            }
170:
171:            /** Copies primary and secondary files to new folder.
172:             * Overrides superclass method.
173:             * @param df the new folder
174:             * @return data object for the new primary
175:             * @throws IOException if there was a problem copying
176:             * @throws UserCancelException if the user cancelled the copy */
177:            @Override
178:            protected synchronized DataObject handleCopy(DataFolder df)
179:                    throws IOException {
180:                if (LOG.isLoggable(FINER)) {
181:                    LOG.finer("handleCopy(" //NOI18N
182:                            + FileUtil.getFileDisplayName(df.getPrimaryFile())
183:                            + ')');
184:                }
185:                try {
186:                    pasteSuffix = createPasteSuffix(df);
187:
188:                    return super .handleCopy(df);
189:                } finally {
190:                    pasteSuffix = null;
191:                }
192:            }
193:
194:            /** Moves primary and secondary files to a new folder.
195:             * Overrides superclass method.
196:             * @param df the new folder
197:             * @return the moved primary file object
198:             * @throws IOException if there was a problem moving
199:             * @throws UserCancelException if the user cancelled the move */
200:            @Override
201:            protected FileObject handleMove(DataFolder df) throws IOException {
202:                if (LOG.isLoggable(FINER)) {
203:                    LOG.finer("handleMove(" //NOI18N
204:                            + FileUtil.getFileDisplayName(df.getPrimaryFile())
205:                            + ')');
206:                }
207:
208:                // a simple fix of issue #92195 (impossible to save a moved prop. file):
209:                SaveCookie saveCookie = getCookie(SaveCookie.class);
210:                if (saveCookie != null) {
211:                    saveCookie.save();
212:                }
213:
214:                try {
215:                    pasteSuffix = createPasteSuffix(df);
216:
217:                    return super .handleMove(df);
218:                } finally {
219:                    pasteSuffix = null;
220:                }
221:            }
222:
223:            /** Gets suffix used by entries by copying/moving. */
224:            String getPasteSuffix() {
225:                return pasteSuffix;
226:            }
227:
228:            /** Only accessible method, it is necessary to call MultiDataObject's method
229:             * from this package.
230:             */
231:            void removeSecondaryEntry2(Entry fe) {
232:                if (LOG.isLoggable(FINER)) {
233:                    LOG.finer("removeSecondaryEntry2(Entry " //NOI18N
234:                            + FileUtil.getFileDisplayName(fe.getFile()) + ')');
235:                }
236:                removeSecondaryEntry(fe);
237:            }
238:
239:            /** Creates new name for this instance when moving/copying to new folder destination. 
240:             * @param folder new folder destination. */
241:            private String createPasteSuffix(DataFolder folder) {
242:                String basicName = getPrimaryFile().getName();
243:
244:                DataObject[] children = folder.getChildren();
245:
246:                // Repeat until there is not such file name.
247:                for (int i = 0;; i++) {
248:                    String newName;
249:
250:                    if (i == 0) {
251:                        newName = basicName;
252:                    } else {
253:                        newName = basicName + i;
254:                    }
255:                    boolean exist = false;
256:
257:                    for (int j = 0; j < children.length; j++) {
258:                        if (children[j] instanceof  PropertiesDataObject
259:                                && newName.equals(children[j].getName())) {
260:                            exist = true;
261:                            break;
262:                        }
263:                    }
264:
265:                    if (!exist) {
266:                        if (i == 0) {
267:                            return ""; // NOI18N
268:                        } else {
269:                            return "" + i; // NOI18N
270:                        }
271:                    }
272:                }
273:            }
274:
275:            /** Returns open support. It's used by all subentries as open support too. */
276:            public PropertiesOpen getOpenSupport() {
277:                synchronized (OPEN_SUPPORT_LOCK) {
278:                    if (openSupport == null) {
279:                        openSupport = new PropertiesOpen(this );
280:                    }
281:
282:                    return openSupport;
283:                }
284:            }
285:
286:            /** Updates modification status of this dataobject from its entries. */
287:            void updateModificationStatus() {
288:                LOG.finer("updateModificationStatus()"); //NOI18N
289:                boolean modif = false;
290:                if (((PresentableFileEntry) getPrimaryEntry()).isModified())
291:                    modif = true;
292:                else {
293:                    for (Iterator it = secondaryEntries().iterator(); it
294:                            .hasNext();) {
295:                        if (((PresentableFileEntry) it.next()).isModified()) {
296:                            modif = true;
297:                            break;
298:                        }
299:                    }
300:                }
301:
302:                super .setModified(modif);
303:            }
304:
305:            /** Provides node that should represent this data object. When a node for representation
306:             * in a parent is requested by a call to getNode (parent) it is the exact copy of this node
307:             * with only parent changed. This implementation creates instance
308:             * <CODE>DataNode</CODE>.
309:             * <P>
310:             * This method is called only once.
311:             *
312:             * @return the node representation for this data object
313:             * @see DataNode
314:             */
315:            @Override
316:            protected Node createNodeDelegate() {
317:                PropertiesChildren pc = new PropertiesChildren();
318:
319:                // properties node - creates new types
320:                DataNode dn = new PropertiesDataNode(this , pc);
321:                return dn;
322:            }
323:
324:            /** Returns a structural view of this data object */
325:            public BundleStructure getBundleStructure() {
326:                if (bundleStructure == null)
327:                    bundleStructure = new BundleStructure(this );
328:                return bundleStructure;
329:            }
330:
331:            /** Comparator used for ordering secondary files, works over file names */
332:            public static Comparator<String> getSecondaryFilesComparator() {
333:                return new KeyComparator();
334:            }
335:
336:            /**
337:             */
338:            void fireNameChange() {
339:                LOG.finer("fireNameChange()"); //NOI18N
340:                firePropertyChange(PROP_NAME, null, null);
341:            }
342:
343:            /** Deserialization. */
344:            private void readObject(ObjectInputStream in) throws IOException,
345:                    ClassNotFoundException {
346:                in.defaultReadObject();
347:                initialize();
348:            }
349:
350:            /** Children of this <code>PropertiesDataObject</code>. */
351:            private class PropertiesChildren extends Children.Keys<String> {
352:
353:                /** Listens to changes on the dataobject */
354:                private PropertyChangeListener propertyListener = null;
355:
356:                /** Constructor.*/
357:                PropertiesChildren() {
358:                    super ();
359:                }
360:
361:                /** Sets all keys in the correct order */
362:                protected void mySetKeys() {
363:                    TreeSet<String> newKeys = new TreeSet<String>(
364:                            new Comparator<String>() {
365:                                public int compare(String o1, String o2) {
366:                                    if (o1 == o2) {
367:                                        return 0;
368:                                    }
369:                                    if (o1 == null) {
370:                                        return -1;
371:                                    }
372:                                    if (o2 == null) {
373:                                        return 1;
374:                                    }
375:                                    return o1.compareTo(o2);
376:                                }
377:                            });
378:
379:                    newKeys.add(getPrimaryEntry().getFile().getName());
380:
381:                    for (Entry entry : secondaryEntries()) {
382:                        newKeys.add(entry.getFile().getName());
383:                    }
384:
385:                    setKeys(newKeys);
386:                }
387:
388:                /** Called to notify that the children has been asked for children
389:                 * after and that they should set its keys. Overrides superclass method. */
390:                @Override
391:                protected void addNotify() {
392:                    mySetKeys();
393:
394:                    // listener
395:                    if (propertyListener == null) {
396:                        propertyListener = new PropertyChangeListener() {
397:                            public void propertyChange(PropertyChangeEvent evt) {
398:                                if (PROP_FILES.equals(evt.getPropertyName())) {
399:                                    mySetKeys();
400:                                }
401:                            }
402:                        };
403:
404:                        PropertiesDataObject.this 
405:                                .addPropertyChangeListener(WeakListeners
406:                                        .propertyChange(propertyListener,
407:                                                PropertiesDataObject.this ));
408:                    }
409:                }
410:
411:                /** Called to notify that the children has lost all of its references to
412:                 * its nodes associated to keys and that the keys could be cleared without
413:                 * affecting any nodes (because nobody listens to that nodes). 
414:                 * Overrides superclass method. */
415:                @Override
416:                protected void removeNotify() {
417:                    setKeys(new ArrayList<String>());
418:                }
419:
420:                /** Creates nodes for specified key. Implements superclass abstract method. */
421:                protected Node[] createNodes(String entryName) {
422:                    if (entryName == null) {
423:                        return null;
424:                    }
425:
426:                    PropertiesFileEntry entry = (PropertiesFileEntry) getPrimaryEntry();
427:
428:                    if (entryName.equals(entry.getFile().getName())) {
429:                        return new Node[] { entry.getNodeDelegate() };
430:                    }
431:                    for (Iterator<Entry> it = secondaryEntries().iterator(); it
432:                            .hasNext();) {
433:                        entry = (PropertiesFileEntry) it.next();
434:
435:                        if (entryName.equals(entry.getFile().getName())) {
436:                            return new Node[] { entry.getNodeDelegate() };
437:                        }
438:                    }
439:
440:                    return null;
441:                }
442:
443:            } // End of class PropertiesChildren.
444:
445:        }
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