Source Code Cross Referenced for QAbstractNode.java in  » EJB-Server-resin-3.1.5 » resin » com » caucho » xml » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » EJB Server resin 3.1.5 » resin » com.caucho.xml 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
003:         *
004:         * This file is part of Resin(R) Open Source
005:         *
006:         * Each copy or derived work must preserve the copyright notice and this
007:         * notice unmodified.
008:         *
009:         * Resin Open Source is free software; you can redistribute it and/or modify
010:         * it under the terms of the GNU General Public License as published by
011:         * the Free Software Foundation; either version 2 of the License, or
012:         * (at your option) any later version.
013:         *
014:         * Resin Open Source is distributed in the hope that it will be useful,
015:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
016:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
017:         * of NON-INFRINGEMENT.  See the GNU General Public License for more
018:         * details.
019:         *
020:         * You should have received a copy of the GNU General Public License
021:         * along with Resin Open Source; if not, write to the
022:         *   Free SoftwareFoundation, Inc.
023:         *   59 Temple Place, Suite 330
024:         *   Boston, MA 02111-1307  USA
025:         *
026:         * @author Scott Ferguson
027:         */
028:
029:        package com.caucho.xml;
030:
031:        import com.caucho.util.L10N;
032:        import com.caucho.vfs.Depend;
033:        import com.caucho.vfs.WriteStream;
034:
035:        import org.w3c.dom.DOMException;
036:        import org.w3c.dom.Document;
037:        import org.w3c.dom.NamedNodeMap;
038:        import org.w3c.dom.Node;
039:        import org.w3c.dom.NodeList;
040:        import org.w3c.dom.UserDataHandler;
041:
042:        import java.io.IOException;
043:        import java.util.ArrayList;
044:
045:        /**
046:         * QAbstractNode is an abstract implementation for any DOM node.
047:         */
048:        public abstract class QAbstractNode implements  CauchoNode,
049:                java.io.Serializable {
050:            protected static L10N L = new L10N(QAbstractNode.class);
051:
052:            QDocument _owner;
053:
054:            QNode _parent;
055:
056:            QAbstractNode _next;
057:            QAbstractNode _previous;
058:
059:            String _systemId;
060:            String _filename;
061:            int _line;
062:
063:            protected QAbstractNode() {
064:            }
065:
066:            protected QAbstractNode(QDocument owner) {
067:                _owner = owner;
068:            }
069:
070:            public void setLocation(String systemId, String filename, int line,
071:                    int column) {
072:                _systemId = systemId;
073:                _filename = filename;
074:                _line = line;
075:            }
076:
077:            /**
078:             * Returns the node's source filename.
079:             */
080:            public String getFilename() {
081:                if (_filename != null)
082:                    return _filename;
083:                else if (_previous != null)
084:                    return _previous.getFilename();
085:                else if (_parent != null)
086:                    return _parent.getFilename();
087:                else
088:                    return null;
089:            }
090:
091:            /**
092:             * Returns the base URI of the node.
093:             */
094:            public String getBaseURI() {
095:                if (_systemId != null)
096:                    return _systemId;
097:                else if (_previous != null)
098:                    return _previous.getBaseURI();
099:                else if (_parent != null)
100:                    return _parent.getBaseURI();
101:                else
102:                    return getFilename();
103:            }
104:
105:            /**
106:             * Returns the base URI
107:             */
108:            public static String baseURI(Node node) {
109:                if (node instanceof  QAbstractNode)
110:                    return ((QAbstractNode) node).getBaseURI();
111:                else
112:                    return null;
113:            }
114:
115:            /**
116:             * Returns the node's source line.
117:             */
118:            public int getLine() {
119:                if (_filename != null)
120:                    return _line;
121:                else if (_previous != null)
122:                    return _previous.getLine();
123:                else if (_parent != null)
124:                    return _parent.getLine();
125:                else
126:                    return 0;
127:            }
128:
129:            public int getColumn() {
130:                return 0;
131:            }
132:
133:            /**
134:             * Returns the owning document.
135:             */
136:            public Document getOwnerDocument() {
137:                return _owner;
138:            }
139:
140:            public boolean isSupported(String feature, String version) {
141:                return _owner.getImplementation().hasFeature(feature, version);
142:            }
143:
144:            /**
145:             * Returns a feature value.
146:             */
147:            public Object getFeature(String feature, String version) {
148:                return null;
149:            }
150:
151:            /**
152:             * Sets a feature value.
153:             */
154:            public void setFeature(String feature, boolean value) {
155:            }
156:
157:            /**
158:             * Compares the document position
159:             */
160:            public short compareDocumentPosition(Node node) {
161:                return 0;
162:            }
163:
164:            /**
165:             * Looks up a prefix value.
166:             */
167:            public String lookupPrefix(String feature) {
168:                return null;
169:            }
170:
171:            /**
172:             * Returns true if the node has attributes.
173:             */
174:            public boolean hasAttributes() {
175:                return false;
176:            }
177:
178:            public String getPrefix() {
179:                return "";
180:            }
181:
182:            public void setPrefix(String prefix) {
183:            }
184:
185:            public Object setUserData(String key, Object value,
186:                    UserDataHandler userData) {
187:                return null;
188:            }
189:
190:            public Object getUserData(String data) {
191:                return null;
192:            }
193:
194:            public String getCanonicalName() {
195:                return getNodeName();
196:            }
197:
198:            public String getLocalName() {
199:                return getNodeName();
200:            }
201:
202:            public String getNamespaceURI() {
203:                return "";
204:            }
205:
206:            public QName getQName() {
207:                return new QName(getNodeName(), getNamespaceURI());
208:            }
209:
210:            public String getNodeValue() {
211:                return null;
212:            }
213:
214:            public void setNodeValue(String value) {
215:            }
216:
217:            public Node getParentNode() {
218:                return _parent;
219:            }
220:
221:            public NodeList getChildNodes() {
222:                return new QEmptyNodeList();
223:            }
224:
225:            public Node getFirstChild() {
226:                return null;
227:            }
228:
229:            public Node getLastChild() {
230:                return null;
231:            }
232:
233:            public Node getPreviousSibling() {
234:                return _previous;
235:            }
236:
237:            public Node getNextSibling() {
238:                return _next;
239:            }
240:
241:            public NamedNodeMap getAttributes() {
242:                return null;
243:            }
244:
245:            public Node insertBefore(Node newChild, Node refChild)
246:                    throws DOMException {
247:                throw new QDOMException(DOMException.HIERARCHY_REQUEST_ERR, "");
248:            }
249:
250:            public Node replaceChild(Node newChild, Node refChild)
251:                    throws DOMException {
252:                throw new QDOMException(DOMException.HIERARCHY_REQUEST_ERR, "");
253:            }
254:
255:            public Node removeChild(Node oldChild) throws DOMException {
256:                throw new QDOMException(DOMException.HIERARCHY_REQUEST_ERR, "");
257:            }
258:
259:            public Node appendChild(Node newNode) throws DOMException {
260:                throw new QDOMException(DOMException.HIERARCHY_REQUEST_ERR, "");
261:            }
262:
263:            public boolean hasChildNodes() {
264:                return false;
265:            }
266:
267:            public boolean equals(Node arg, boolean deep) {
268:                return this  == arg;
269:            }
270:
271:            void remove() {
272:                if (_owner != null)
273:                    _owner._changeCount++;
274:
275:                if (_previous != null)
276:                    _previous._next = _next;
277:                else if (_parent != null)
278:                    _parent._firstChild = _next;
279:
280:                if (_next != null)
281:                    _next._previous = _previous;
282:                else if (_parent != null)
283:                    _parent._lastChild = _previous;
284:
285:                _previous = null;
286:                _next = null;
287:                _parent = null;
288:            }
289:
290:            public QAbstractNode getNextPreorder() {
291:                if (_next != null)
292:                    return _next;
293:
294:                for (QNode ptr = _parent; ptr != null; ptr = ptr._parent) {
295:                    if (ptr._next != null)
296:                        return ptr._next;
297:                }
298:
299:                return null;
300:            }
301:
302:            public boolean hasContent() {
303:                return false;
304:            }
305:
306:            public QAbstractNode getNextContent() {
307:                for (QAbstractNode node = _next; node != null; node = node._next) {
308:                    if (node.hasContent())
309:                        return node;
310:                }
311:
312:                return null;
313:            }
314:
315:            public QAbstractNode getPreviousContent() {
316:                for (QAbstractNode node = _previous; node != null; node = node._previous) {
317:                    if (node.hasContent())
318:                        return node;
319:                }
320:
321:                return null;
322:            }
323:
324:            public String getTextValue() {
325:                return getNodeValue();
326:            }
327:
328:            /**
329:             * Support the same and the implementation
330:             */
331:            public boolean supports(String feature, String version) {
332:                return _owner._implementation.hasFeature(feature, version);
333:            }
334:
335:            public void normalize() {
336:
337:            }
338:
339:            public Node cloneNode(boolean deep) {
340:                return _owner.importNode(this , deep);
341:            }
342:
343:            // DOM level 3
344:
345:            public short compareTreePosition(Node other) {
346:                throw new UnsupportedOperationException();
347:            }
348:
349:            public String getTextContent() throws DOMException {
350:                return XmlUtil.textValue(this );
351:            }
352:
353:            public void setTextContent(String textContent) throws DOMException {
354:                throw new UnsupportedOperationException();
355:            }
356:
357:            public boolean isSameNode(Node other) {
358:                return this  == other;
359:            }
360:
361:            public String lookupNamespacePrefix(String namespaceURI,
362:                    boolean useDefault) {
363:                throw new UnsupportedOperationException();
364:            }
365:
366:            public boolean isDefaultNamespace(String namespaceURI) {
367:                throw new UnsupportedOperationException();
368:            }
369:
370:            public String lookupNamespaceURI(String prefix) {
371:                throw new UnsupportedOperationException();
372:            }
373:
374:            public boolean isEqualNode(Node arg) {
375:                return equals(arg);
376:            }
377:
378:            public Node getInterface(String feature) {
379:                throw new UnsupportedOperationException();
380:            }
381:
382:            /*
383:            public Object setUserData(String key, 
384:                                      Object data, 
385:                                      UserDataHandler handler)
386:            {
387:              throw new UnsupportedOperationException();
388:            }
389:            
390:            public Object getUserData(String key)
391:            {
392:              throw new UnsupportedOperationException();
393:            }
394:             */
395:
396:            // Caucho stuff
397:            public ArrayList<Depend> getDependencyList() {
398:                if (_owner != null)
399:                    return _owner.getDependencyList();
400:                else
401:                    return null;
402:            }
403:
404:            boolean isNameValid(String name) {
405:                if (name == null || name.length() == 0)
406:                    return false;
407:
408:                if (!XmlChar.isNameStart(name.charAt(0)))
409:                    return false;
410:
411:                for (int i = 1; i < name.length(); i++) {
412:                    char ch = name.charAt(i);
413:                    if (!XmlChar.isNameChar(ch))
414:                        return false;
415:                }
416:
417:                return true;
418:            }
419:
420:            public boolean checkValid() throws Exception {
421:                if (_parent == null) {
422:                    if (_next != null || _previous != null)
423:                        throw new Exception("null bad: " + this );
424:                    else
425:                        return true;
426:                }
427:
428:                if (_parent._owner != _owner && _owner != _parent)
429:                    throw new Exception("owner bad: " + this );
430:
431:                QAbstractNode ptr = _parent._firstChild;
432:                for (; ptr != null && ptr != this ; ptr = ptr._next) {
433:                }
434:                if (ptr == null)
435:                    throw new Exception("not in parent: " + this );
436:
437:                ptr = _parent._lastChild;
438:                for (; ptr != null && ptr != this ; ptr = ptr._previous) {
439:                }
440:                if (ptr == null)
441:                    throw new Exception("not in parent: " + this );
442:
443:                if (_next == null && _parent._lastChild != this )
444:                    throw new Exception("bad tail: " + this );
445:
446:                else if (_next != null && _next._previous != this )
447:                    throw new Exception("bad link: " + this );
448:
449:                if (_previous == null && _parent._firstChild != this )
450:                    throw new Exception("bad head: " + this );
451:                else if (_previous != null && _previous._next != this )
452:                    throw new Exception("bad link: " + this );
453:
454:                return true;
455:            }
456:
457:            void print(XmlPrinter out) throws IOException {
458:            }
459:
460:            public void print(WriteStream out) throws IOException {
461:                new XmlPrinter(out).printXml(this );
462:            }
463:
464:            public void printPretty(WriteStream out) throws IOException {
465:                new XmlPrinter(out).printPrettyXml(this );
466:            }
467:
468:            public void printHtml(WriteStream out) throws IOException {
469:                new XmlPrinter(out).printHtml(this );
470:            }
471:
472:            private Object writeReplace() {
473:                return new SerializedXml(this);
474:            }
475:        }
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