Source Code Cross Referenced for IOSupport.java in  » IDE-Netbeans » vmd.analyzer » org » netbeans » modules » vmd » api » io » providers » 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.io.providers 
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.io.providers;
042:
043:        import org.netbeans.core.spi.multiview.MultiViewDescription;
044:        import org.netbeans.modules.vmd.api.io.DataEditorView;
045:        import org.netbeans.modules.vmd.api.io.DataObjectContext;
046:        import org.netbeans.modules.vmd.api.io.ProjectUtils;
047:        import org.netbeans.modules.vmd.api.io.serialization.DocumentErrorHandler;
048:        import org.netbeans.modules.vmd.api.model.Debug;
049:        import org.netbeans.modules.vmd.api.model.DesignDocument;
050:        import org.netbeans.modules.vmd.api.model.DocumentInterface;
051:        import org.netbeans.modules.vmd.io.CodeResolver;
052:        import org.netbeans.modules.vmd.io.DataObjectContextImpl;
053:        import org.netbeans.modules.vmd.io.DocumentLoad;
054:        import org.netbeans.modules.vmd.io.editor.EditorViewDescription;
055:        import org.netbeans.modules.vmd.io.editor.EditorViewElement;
056:        import org.netbeans.modules.vmd.io.editor.EditorViewFactorySupport;
057:        import org.netbeans.modules.vmd.io.editor.CodeEditorViewDescription;
058:        import org.openide.DialogDescriptor;
059:        import org.openide.DialogDisplayer;
060:        import org.openide.filesystems.FileObject;
061:        import org.openide.loaders.DataObject;
062:        import org.openide.text.CloneableEditorSupport;
063:        import org.openide.util.NbBundle;
064:
065:        import javax.swing.*;
066:        import java.util.ArrayList;
067:        import java.util.Collection;
068:        import java.util.WeakHashMap;
069:
070:        /**
071:         * Custom DataObject used by the IOSupport class must:
072:         * <ul>
073:         * <li>implement DataObjectInterface
074:         * <li>contain CloneableEditorSupport in data object lookup
075:         * <li>call notifyDataObjectClosed to notify about editor closing and therefore freeing related structure
076:         * <li>optionally call forceUpdateCode to force editor synchronization with design document
077:         * </ul>
078:         *
079:         * @author David Kaspar
080:         */
081:        public final class IOSupport {
082:
083:            private IOSupport() {
084:            }
085:
086:            private static final WeakHashMap<DataObject, DataObjectContext> contexts = new WeakHashMap<DataObject, DataObjectContext>();
087:            private static final WeakHashMap<DataObject, DocumentSerializer> serializers = new WeakHashMap<DataObject, DocumentSerializer>();
088:            private static final WeakHashMap<DataObject, CodeResolver> resolvers = new WeakHashMap<DataObject, CodeResolver>();
089:            private static final WeakHashMap<DataObject, Boolean> documentUpdating = new WeakHashMap<DataObject, Boolean>();
090:
091:            /**
092:             * Returns a data object context representing specified data object.
093:             * @param dataObject the data object
094:             * @return the data object context
095:             */
096:            public static synchronized DataObjectContext getDataObjectContext(
097:                    DataObject dataObject) {
098:                DataObjectContext context = contexts.get(dataObject);
099:                if (context == null) {
100:                    getDataObjectInteface(dataObject);
101:                    context = new DataObjectContextImpl(dataObject);
102:                    contexts.put(dataObject, context);
103:                }
104:                return context;
105:            }
106:
107:            /**
108:             * Returns a document serializer related to specified data object.
109:             * @param dataObject the data object
110:             * @return the related document serializer
111:             */
112:            public static synchronized DocumentSerializer getDocumentSerializer(
113:                    DataObject dataObject) {
114:                DocumentSerializer serializer = serializers.get(dataObject);
115:                if (serializer == null) {
116:                    DataObjectContext context = getDataObjectContext(dataObject);
117:                    serializer = new DocumentSerializer(context);
118:                    serializers.put(dataObject, serializer);
119:                    resolvers.put(dataObject, new CodeResolver(context,
120:                            serializer));
121:                }
122:                return serializer;
123:            }
124:
125:            /**
126:             * Force update of code. This is usually invoked immediately after a document is loaded and immediately a document is saved
127:             * to keep the generated code synchronized with related design document.
128:             * @param dataObject the data object
129:             */
130:            public static void forceUpdateCode(DataObject dataObject) {
131:                CodeResolver resolver = resolvers.get(dataObject);
132:                if (resolver != null) {
133:                    resolver.forceUpdateCode();
134:                }
135:            }
136:
137:            /**
138:             * Call this method to free all objects related to the data object that very assigned by the class.
139:             * @param dataObject the data object
140:             */
141:            public static synchronized void notifyDataObjectClosed(
142:                    DataObject dataObject) {
143:                documentUpdating.remove(dataObject);
144:                CodeResolver resolver = resolvers.remove(dataObject);
145:                if (resolver != null) {
146:                    resolver.notifyDataObjectClosed();
147:                }
148:                DocumentSerializer serializer = serializers.remove(dataObject);
149:                if (serializer != null) {
150:                    serializer.notifyDataObjectClosed();
151:                }
152:                contexts.remove(dataObject);
153:            }
154:
155:            /**
156:             * Returns data object interface for specified data object.
157:             * DataObject must implement DataObjectInterface.
158:             * @param dataObject the data object
159:             * @return the data object interface
160:             */
161:            public static DataObjectInterface getDataObjectInteface(
162:                    DataObject dataObject) {
163:                if (!(dataObject instanceof  DataObjectInterface)) {
164:                    throw Debug
165:                            .illegalArgument(
166:                                    "DataObject does not implement DataObjectInterface",
167:                                    dataObject); // NOI18N
168:                }
169:                return (DataObjectInterface) dataObject;
170:            }
171:
172:            /**
173:             * Returns a cloneable editor lookup for specified data object.
174:             * The CloneableEditorSupport has to be in data object lookup.
175:             * @param dataObject the data object
176:             * @return the cloneable editor support
177:             */
178:            public static CloneableEditorSupport getCloneableEditorSupport(
179:                    DataObject dataObject) {
180:                CloneableEditorSupport editorSupport = dataObject.getLookup()
181:                        .lookup(CloneableEditorSupport.class);
182:                if (editorSupport == null) {
183:                    throw Debug
184:                            .illegalArgument(
185:                                    "Missing CloneableEditorSupport in DataObject lookup",
186:                                    dataObject); // NOI18N
187:                }
188:                return editorSupport;
189:            }
190:
191:            /**
192:             * Returns the design file of specified data object context.
193:             * @param context the data object context
194:             * @return the design file object
195:             */
196:            public static FileObject getDesignFile(DataObjectContext context) {
197:                return getDataObjectInteface(context.getDataObject())
198:                        .getDesignFile();
199:            }
200:
201:            /**
202:             * Creates an array of multi view descriptions for editor support for a specified context.
203:             * @param context the data object context
204:             * @return the arra of multi view descriptions
205:             */
206:            public static MultiViewDescription[] createEditorSupportPane(
207:                    DataObjectContext context) {
208:                Collection<DataEditorView> views = EditorViewFactorySupport
209:                        .createEditorViews(context);
210:                ArrayList<EditorViewDescription> descriptions = new ArrayList<EditorViewDescription>();
211:                for (DataEditorView view : views)
212:                    descriptions
213:                            .add(view.getKind() == DataEditorView.Kind.CODE ? new CodeEditorViewDescription(
214:                                    context, view)
215:                                    : new EditorViewDescription(context, view));
216:                return descriptions
217:                        .toArray(new MultiViewDescription[descriptions.size()]);
218:            }
219:
220:            /**
221:             * Returns data editor view instance assigned to a multi view description.
222:             * @param description the description
223:             * @return the data editor view
224:             */
225:            public static DataEditorView getDataEditorView(
226:                    MultiViewDescription description) {
227:                return description instanceof  EditorViewDescription ? ((EditorViewDescription) description)
228:                        .getView()
229:                        : null;
230:            }
231:
232:            /**
233:             * Returns a data object context for specified document
234:             * @param document the design document
235:             * @return the data object context
236:             */
237:            // TODO - should be hidden - used by ProjectUtils.getDataObjectContextForDocument method only
238:            public static synchronized DataObjectContext getDataObjectContextForDocumentInterface(
239:                    DesignDocument document) {
240:                assert Debug.isFriend(ProjectUtils.class,
241:                        "getDataObjectContextForDocument"); // NOI18N
242:                DocumentInterface documentInterface = document
243:                        .getDocumentInterface();
244:                for (DataObject dataObject : serializers.keySet()) {
245:                    if (dataObject == null) {
246:                        continue;
247:                    }
248:                    DocumentSerializer documentSerializer = getDocumentSerializer(dataObject); // TODO - use direct access to serializers field
249:                    if (documentSerializer
250:                            .hasDocumentInterface(documentInterface)) {
251:                        return getDataObjectContext(dataObject);
252:                    }
253:                }
254:                return null;
255:            }
256:
257:            // TODO - should be hidden - used by EditorViewElement.componentActivated method only
258:            public static void notifyDataEditorViewActivated(
259:                    DataEditorView activatedView) {
260:                assert Debug.isFriend(EditorViewElement.class,
261:                        "componentActivated"); // NOI18N
262:                if (activatedView == null) {
263:                    return;
264:                }
265:                CodeResolver resolver = resolvers.get(activatedView
266:                        .getContext().getDataObject());
267:                resolver.viewActivated(activatedView);
268:            }
269:
270:            /**
271:             * Loads the document and resolves the project type of the document.
272:             * @param context the context
273:             * @return the project type
274:             */
275:            public static String resolveProjectType(DataObjectContext context) {
276:                return DocumentLoad.loadProjectType(context);
277:            }
278:
279:            static void resetCodeResolver(DataObject dataObject,
280:                    DesignDocument document) {
281:                CodeResolver resolver = resolvers.get(dataObject);
282:                resolver.resetModelModifiedStatus(document);
283:            }
284:
285:            /**
286:             * Returns whether a document updating is enabled.
287:             * @param dataObject the data object
288:             * @return true, if enabled
289:             */
290:            public static boolean isDocumentUpdatingEnabled(
291:                    DataObject dataObject) {
292:                Boolean enabled = documentUpdating.get(dataObject);
293:                return enabled != null && enabled;
294:            }
295:
296:            /**
297:             * Sets whether a document updating is enabled.
298:             * @param dataObject the data object
299:             * @param enabled if true, then enabled
300:             */
301:            public static void setDocumentUpdatingEnabled(
302:                    DataObject dataObject, boolean enabled) {
303:                documentUpdating.put(dataObject, enabled);
304:            }
305:
306:        }
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