Source Code Cross Referenced for StrutsConfigDataObject.java in  » IDE-Netbeans » web.core » org » netbeans » modules » web » struts » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » web.core » org.netbeans.modules.web.struts 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003:         *
004:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * The contents of this file are subject to the terms of either the GNU
007:         * General Public License Version 2 only ("GPL") or the Common
008:         * Development and Distribution License("CDDL") (collectively, the
009:         * "License"). You may not use this file except in compliance with the
010:         * License. You can obtain a copy of the License at
011:         * http://www.netbeans.org/cddl-gplv2.html
012:         * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013:         * specific language governing permissions and limitations under the
014:         * License.  When distributing the software, include this License Header
015:         * Notice in each file and include the License file at
016:         * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
017:         * particular file as subject to the "Classpath" exception as provided
018:         * by Sun in the GPL Version 2 section of the License file that
019:         * accompanied this code. If applicable, add the following below the
020:         * License Header, with the fields enclosed by brackets [] replaced by
021:         * your own identifying information:
022:         * "Portions Copyrighted [year] [name of copyright owner]"
023:         *
024:         * Contributor(s):
025:         *
026:         * The Original Software is NetBeans. The Initial Developer of the Original
027:         * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028:         * Microsystems, Inc. All Rights Reserved.
029:         *
030:         * If you wish your version of this file to be governed by only the CDDL
031:         * or only the GPL Version 2, indicate your decision by adding
032:         * "[Contributor] elects to include this software in this distribution
033:         * under the [CDDL or GPL Version 2] license." If you do not indicate a
034:         * single choice of license, a recipient has the option to distribute
035:         * your version of this file under either the CDDL, the GPL Version 2 or
036:         * to extend the choice of license to its licensees as provided above.
037:         * However, if you add GPL Version 2 code and therefore, elected the GPL
038:         * Version 2 license, then the option applies only if the new code is
039:         * made subject to such option by the copyright holder.
040:         */
041:
042:        package org.netbeans.modules.web.struts;
043:
044:        //import org.netbeans.modules.xml.catalog.settings.CatalogSettings;
045:        import java.io.IOException;
046:        import java.io.InputStream;
047:        import java.util.logging.Level;
048:        import java.util.logging.Logger;
049:        import org.netbeans.modules.web.struts.config.model.StrutsConfig;
050:        import org.openide.filesystems.FileObject;
051:        import org.openide.loaders.DataObjectExistsException;
052:        import org.openide.loaders.MultiDataObject;
053:        import org.openide.nodes.CookieSet;
054:        import org.openide.nodes.Node;
055:        import org.openide.util.Lookup;
056:        import org.xml.sax.InputSource;
057:
058:        import org.netbeans.api.xml.cookies.ValidateXMLCookie;
059:        import org.netbeans.api.xml.cookies.CheckXMLCookie;
060:        import org.netbeans.modules.xml.api.XmlFileEncodingQueryImpl;
061:        import org.netbeans.spi.queries.FileEncodingQueryImplementation;
062:        import org.netbeans.spi.xml.cookies.*;
063:        import org.w3c.dom.Document;
064:        import org.xml.sax.ErrorHandler;
065:        import org.xml.sax.SAXException;
066:        import org.xml.sax.SAXParseException;
067:
068:        /**
069:         *
070:         * @author Petr Pisl
071:         */
072:        public class StrutsConfigDataObject extends MultiDataObject implements 
073:                org.openide.nodes.CookieSet.Factory {
074:
075:            private static StrutsCatalog strutsCatalog = new StrutsCatalog();
076:            private boolean documentDirty = true;
077:            private boolean documentValid = true;
078:            protected boolean nodeDirty = false;
079:            private InputStream inputStream;
080:            private SAXParseError error;
081:            private StrutsConfig lastGoodConfig = null;
082:
083:            /** Editor support for text data object. */
084:            private transient StrutsConfigEditorSupport editorSupport;
085:
086:            /** Property name for property documentValid */
087:            public static final String PROP_DOC_VALID = "documentValid"; // NOI18N
088:
089:            /** Creates a new instance of StrutsConfigDataObject */
090:            public StrutsConfigDataObject(FileObject pf,
091:                    StrutsConfigLoader loader) throws DataObjectExistsException {
092:                super (pf, loader);
093:                init();
094:
095:            }
096:
097:            private void init() {
098:                CookieSet cookies = getCookieSet();
099:
100:                getCookieSet().add(StrutsConfigEditorSupport.class, this );
101:                getCookieSet().assign(FileEncodingQueryImplementation.class,
102:                        XmlFileEncodingQueryImpl.singleton());
103:                // Creates Check XML and Validate XML context actions
104:                InputSource in = DataObjectAdapters.inputSource(this );
105:                CheckXMLCookie checkCookie = new CheckXMLSupport(in);
106:                getCookieSet().add(checkCookie);
107:                ValidateXMLCookie validateCookie = new ValidateXMLSupport(in);
108:                getCookieSet().add(validateCookie);
109:            }
110:
111:            /**
112:             * Provides node that should represent this data object. When a node for
113:             * representation in a parent is requested by a call to getNode (parent)
114:             * it is the exact copy of this node
115:             * with only parent changed. This implementation creates instance
116:             * <CODE>DataNode</CODE>.
117:             * <P>
118:             * This method is called only once.
119:             *
120:             * @return the node representation for this data object
121:             * @see DataNode
122:             */
123:            protected synchronized Node createNodeDelegate() {
124:                return new StrutsConfigNode(this );
125:            }
126:
127:            /** Implements <code>CookieSet.Factory</code> interface. */
128:            public Node.Cookie createCookie(Class clazz) {
129:                if (clazz.isAssignableFrom(StrutsConfigEditorSupport.class))
130:                    return getEditorSupport();
131:                else
132:                    return null;
133:            }
134:
135:            @Override
136:            public Lookup getLookup() {
137:                return getCookieSet().getLookup();
138:            }
139:
140:            /** Gets editor support for this data object. */
141:            public StrutsConfigEditorSupport getEditorSupport() {
142:                if (editorSupport == null) {
143:                    synchronized (this ) {
144:                        if (editorSupport == null)
145:                            editorSupport = new StrutsConfigEditorSupport(this );
146:                    }
147:                }
148:
149:                return editorSupport;
150:            }
151:
152:            public StrutsConfig getStrutsConfig() throws java.io.IOException {
153:                if (lastGoodConfig == null)
154:                    parsingDocument();
155:                return lastGoodConfig;
156:            }
157:
158:            public StrutsConfig getStrutsConfig(boolean parsenow)
159:                    throws java.io.IOException {
160:                if (parsenow) {
161:                    StrutsConfig previous = lastGoodConfig;
162:                    parsingDocument();
163:                    if (lastGoodConfig == null)
164:                        lastGoodConfig = previous;
165:                }
166:                return getStrutsConfig();
167:            }
168:
169:            /** This method is used for obtaining the current source of xml document.
170:             * First try if document is in the memory. If not, provide the input from
171:             * underlayed file object.
172:             * @return The input source from memory or from file
173:             * @exception IOException if some problem occurs
174:             */
175:            protected InputStream prepareInputSource()
176:                    throws java.io.IOException {
177:                if ((getEditorSupport() != null)
178:                        && (getEditorSupport().isDocumentLoaded())) {
179:                    // loading from the memory (Document)
180:                    return getEditorSupport().getInputStream();
181:                } else {
182:                    return getPrimaryFile().getInputStream();
183:                }
184:            }
185:
186:            /** This method has to be called everytime after prepareInputSource calling.
187:             * It is used for closing the stream, because it is not possible to access the
188:             * underlayed stream hidden in InputSource.
189:             * It is save to call this method without opening.
190:             */
191:            protected void closeInputSource() {
192:                InputStream is = inputStream;
193:                if (is != null) {
194:                    try {
195:                        is.close();
196:                    } catch (IOException e) {
197:                        // nothing to do, if exception occurs during saving.
198:                    }
199:                    if (is == inputStream) {
200:                        inputStream = null;
201:                    }
202:                }
203:            }
204:
205:            public void write(StrutsConfig config) throws java.io.IOException {
206:                java.io.File file = org.openide.filesystems.FileUtil
207:                        .toFile(getPrimaryFile());
208:                org.openide.filesystems.FileObject configFO = getPrimaryFile();
209:                try {
210:                    org.openide.filesystems.FileLock lock = configFO.lock();
211:                    try {
212:                        java.io.OutputStream os = configFO
213:                                .getOutputStream(lock);
214:                        try {
215:                            config.write(os);
216:                        } finally {
217:                            os.close();
218:                        }
219:                    } finally {
220:                        lock.releaseLock();
221:                    }
222:                } catch (org.openide.filesystems.FileAlreadyLockedException ex) {
223:                    // PENDING should write a message
224:                }
225:            }
226:
227:            /** This method parses XML document and calls updateNode method which
228:             * updates corresponding Node.
229:             */
230:            public void parsingDocument() {
231:                error = null;
232:                try {
233:                    error = updateNode(prepareInputSource());
234:                } catch (Exception e) {
235:                    Logger.getLogger("global").log(Level.INFO, null, e);
236:                    setDocumentValid(false);
237:                    return;
238:                } finally {
239:                    closeInputSource();
240:                    documentDirty = false;
241:                }
242:                if (error == null) {
243:                    setDocumentValid(true);
244:                } else {
245:                    setDocumentValid(false);
246:                }
247:                setNodeDirty(false);
248:            }
249:
250:            public void setDocumentValid(boolean valid) {
251:                if (documentValid != valid) {
252:                    if (valid)
253:                        repairNode();
254:                    documentValid = valid;
255:                    firePropertyChange(PROP_DOC_VALID,
256:                            !documentValid ? Boolean.TRUE : Boolean.FALSE,
257:                            documentValid ? Boolean.TRUE : Boolean.FALSE);
258:                }
259:            }
260:
261:            /** This method repairs Node Delegate (usually after changing document by property editor)
262:             */
263:            protected void repairNode() {
264:                // PENDING: set the icon in Node
265:                // ((DataNode)getNodeDelegate()).setIconBase (getIconBaseForValidDocument());
266:                org.openide.awt.StatusDisplayer.getDefault().setStatusText(""); // NOI18N
267:                /*    if (inOut!=null) {
268:                        inOut.closeInputOutput();
269:                        errorAnnotation.detach();
270:                    }*/
271:            }
272:
273:            private org.w3c.dom.Document getDomDocument(InputStream inputSource)
274:                    throws SAXParseException {
275:                try {
276:                    // creating w3c document
277:                    org.w3c.dom.Document doc = org.netbeans.modules.schema2beans.GraphManager
278:                            .createXmlDocument(new org.xml.sax.InputSource(
279:                                    inputSource), false, strutsCatalog,
280:                                    new J2eeErrorHandler(this ));
281:                    return doc;
282:                } catch (Exception e) {
283:                    //    XXX Change that
284:                    throw new SAXParseException(e.getMessage(),
285:                            new org.xml.sax.helpers.LocatorImpl());
286:                }
287:            }
288:
289:            /** Update the node from document. This method is called after document is changed.
290:             * @param is Input source for the document
291:             * @return number of the line with error (document is invalid), 0 (xml document is valid)
292:             */
293:            // TODO is prepared for handling arrors, but not time to finish it.
294:            protected SAXParseError updateNode(InputStream is)
295:                    throws java.io.IOException {
296:                try {
297:                    Document doc = getDomDocument(is);
298:                    lastGoodConfig = StrutsConfig.createGraph(doc);
299:                } catch (SAXParseException ex) {
300:                    return new SAXParseError(ex);
301:                } catch (SAXException ex) {
302:                    throw new IOException();
303:                }
304:                return null;
305:            }
306:
307:            public boolean isDocumentValid() {
308:                return documentValid;
309:            }
310:
311:            /** setter for property documentDirty. Method updateDocument() usually setsDocumentDirty to false
312:             */
313:            public void setDocumentDirty(boolean dirty) {
314:                documentDirty = dirty;
315:            }
316:
317:            /** Getter for property documentDirty.
318:             * @return Value of property documentDirty.
319:             */
320:            public boolean isDocumentDirty() {
321:                return documentDirty;
322:            }
323:
324:            /** Getter for property nodeDirty.
325:             * @return Value of property nodeDirty.
326:             */
327:            public boolean isNodeDirty() {
328:                return nodeDirty;
329:            }
330:
331:            /** Setter for property nodeDirty.
332:             * @param dirty New value of property nodeDirty.
333:             */
334:            public void setNodeDirty(boolean dirty) {
335:                nodeDirty = dirty;
336:            }
337:
338:            org.openide.nodes.CookieSet getCookieSet0() {
339:                return getCookieSet();
340:            }
341:
342:            public static class J2eeErrorHandler implements  ErrorHandler {
343:
344:                private StrutsConfigDataObject dataObject;
345:
346:                public J2eeErrorHandler(StrutsConfigDataObject obj) {
347:                    dataObject = obj;
348:                }
349:
350:                public void error(SAXParseException exception)
351:                        throws SAXException {
352:                    dataObject.createSAXParseError(exception);
353:                    throw exception;
354:                }
355:
356:                public void fatalError(SAXParseException exception)
357:                        throws SAXException {
358:                    dataObject.createSAXParseError(exception);
359:                    throw exception;
360:                }
361:
362:                public void warning(SAXParseException exception)
363:                        throws SAXException {
364:                    dataObject.createSAXParseError(exception);
365:                    throw exception;
366:                }
367:            }
368:
369:            private void createSAXParseError(SAXParseException error) {
370:                this .error = new SAXParseError(error);
371:            }
372:        }
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