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1
28
29 package com.caucho.xml2;
30
31 import com.caucho.util.L10N;
32 import com.caucho.vfs.Depend;
33 import com.caucho.vfs.WriteStream;
34
35 import org.w3c.dom.DOMException  ;
36 import org.w3c.dom.Document ;
37 import org.w3c.dom.NamedNodeMap ;
38 import org.w3c.dom.Node ;
39 import org.w3c.dom.NodeList ;
40 import org.w3c.dom.UserDataHandler ;
41
42 import javax.xml.namespace.QName ;
43 import java.io.IOException ;
44 import java.util.ArrayList ;
45
46
49 public abstract class QAbstractNode implements CauchoNode, java.io.Serializable {
50 protected static L10N L = new L10N(QAbstractNode.class);
51
52 QDocument _owner;
53
54 QNode _parent;
55
56 QAbstractNode _next;
57 QAbstractNode _previous;
58
59 String _systemId;
60 String _filename;
61 int _line;
62
63 protected QAbstractNode()
64 {
65 }
66
67 protected QAbstractNode(QDocument owner)
68 {
69 _owner = owner;
70 }
71
72 public void setLocation(String systemId, String filename,
73 int line, int column)
74 {
75 _systemId = systemId;
76 _filename = filename;
77 _line = line;
78 }
79
80
83 public String getFilename()
84 {
85 if (_filename != null)
86 return _filename;
87 else if (_previous != null)
88 return _previous.getFilename();
89 else if (_parent != null)
90 return _parent.getFilename();
91 else
92 return null;
93 }
94
95
98 public String getBaseURI()
99 {
100 if (_systemId != null)
101 return _systemId;
102 else if (_previous != null)
103 return _previous.getBaseURI();
104 else if (_parent != null)
105 return _parent.getBaseURI();
106 else
107 return getFilename();
108 }
109
110
113 public static String baseURI(Node node)
114 {
115 if (node instanceof QAbstractNode)
116 return ((QAbstractNode) node).getBaseURI();
117 else
118 return null;
119 }
120
121
124 public int getLine()
125 {
126 if (_filename != null)
127 return _line;
128 else if (_previous != null)
129 return _previous.getLine();
130 else if (_parent != null)
131 return _parent.getLine();
132 else
133 return 0;
134 }
135
136 public int getColumn()
137 {
138 return 0;
139 }
140
141
144 public Document getOwnerDocument()
145 {
146 return _owner;
147 }
148
149 public boolean isSupported(String feature, String version)
150 {
151 return _owner.getImplementation().hasFeature(feature, version);
152 }
153
154
157 public Object getFeature(String feature, String version)
158 {
159 return null;
160 }
161
162
165 public void setFeature(String feature, boolean value)
166 {
167 }
168
169
172 public short compareDocumentPosition(Node node)
173 {
174 return 0;
175 }
176
177
180 public String lookupPrefix(String feature)
181 {
182 return null;
183 }
184
185
188 public boolean hasAttributes()
189 {
190 return false;
191 }
192
193 public String getPrefix()
194 {
195 return "";
196 }
197
198 public void setPrefix(String prefix)
199 {
200 }
201
202 public Object setUserData(String key, Object value, UserDataHandler userData)
203 {
204 return null;
205 }
206
207 public Object getUserData(String data)
208 {
209 return null;
210 }
211
212 public String getCanonicalName()
213 {
214 return getNodeName();
215 }
216
217 public String getLocalName()
218 {
219 return getNodeName();
220 }
221
222 public String getNamespaceURI()
223 {
224 return "";
225 }
226
227 public QName getQName()
228 {
229 return new QName (getNodeName(), getNamespaceURI());
230 }
231
232 public String getNodeValue() { return null; }
233
234 public void setNodeValue(String value) {}
235
236 public Node getParentNode() { return _parent; }
237
238 public NodeList getChildNodes()
239 {
240 return new QEmptyNodeList();
241 }
242
243 public Node getFirstChild() { return null; }
244
245 public Node getLastChild() { return null; }
246
247 public Node getPreviousSibling() { return _previous; }
248
249 public Node getNextSibling() { return _next; }
250
251 public NamedNodeMap getAttributes() { return null; }
252
253 public Node insertBefore(Node newChild, Node refChild)
254 throws DOMException
255 {
256 throw new QDOMException(DOMException.HIERARCHY_REQUEST_ERR, "");
257 }
258
259 public Node replaceChild(Node newChild, Node refChild)
260 throws DOMException
261 {
262 throw new QDOMException(DOMException.HIERARCHY_REQUEST_ERR, "");
263 }
264
265 public Node removeChild(Node oldChild) throws DOMException
266 {
267 throw new QDOMException(DOMException.HIERARCHY_REQUEST_ERR, "");
268 }
269
270 public Node appendChild(Node newNode) throws DOMException
271 {
272 throw new QDOMException(DOMException.HIERARCHY_REQUEST_ERR, "");
273 }
274
275 public boolean hasChildNodes() { return false; }
276
277 public boolean equals(Node arg, boolean deep)
278 {
279 return this == arg;
280 }
281
282 void remove()
283 {
284 if (_owner != null)
285 _owner._changeCount++;
286
287 if (_previous != null)
288 _previous._next = _next;
289 else if (_parent != null)
290 _parent._firstChild = _next;
291
292 if (_next != null)
293 _next._previous = _previous;
294 else if (_parent != null)
295 _parent._lastChild = _previous;
296
297 _previous = null;
298 _next = null;
299 _parent = null;
300 }
301
302 public QAbstractNode getNextPreorder()
303 {
304 if (_next != null)
305 return _next;
306
307 for (QNode ptr = _parent; ptr != null; ptr = ptr._parent) {
308 if (ptr._next != null)
309 return ptr._next;
310 }
311
312 return null;
313 }
314
315 public boolean hasContent() { return false; }
316
317 public QAbstractNode getNextContent()
318 {
319 for (QAbstractNode node = _next; node != null; node = node._next) {
320 if (node.hasContent())
321 return node;
322 }
323
324 return null;
325 }
326
327 public QAbstractNode getPreviousContent()
328 {
329 for (QAbstractNode node = _previous; node != null; node = node._previous) {
330 if (node.hasContent())
331 return node;
332 }
333
334 return null;
335 }
336
337 public String getTextValue()
338 {
339 return getNodeValue();
340 }
341
342
345 public boolean supports(String feature, String version)
346 {
347 return _owner._implementation.hasFeature(feature, version);
348 }
349
350 public void normalize()
351 {
352
353 }
354
355 public Node cloneNode(boolean deep)
356 {
357 return _owner.importNode(this, deep);
358 }
359
360
362 public short compareTreePosition(Node other)
363 {
364 throw new UnsupportedOperationException ();
365 }
366
367 public String getTextContent()
368 throws DOMException
369 {
370 return XmlUtil.textValue(this);
371 }
372
373 public void setTextContent(String textContent)
374 throws DOMException
375 {
376 throw new UnsupportedOperationException ();
377 }
378
379 public boolean isSameNode(Node other)
380 {
381 return this == other;
382 }
383
384 public String lookupNamespacePrefix(String namespaceURI,
385 boolean useDefault)
386 {
387 throw new UnsupportedOperationException ();
388 }
389
390 public boolean isDefaultNamespace(String namespaceURI)
391 {
392 throw new UnsupportedOperationException ();
393 }
394
395 public String lookupNamespaceURI(String prefix)
396 {
397 throw new UnsupportedOperationException ();
398 }
399
400 public boolean isEqualNode(Node arg)
401 {
402 return equals(arg);
403 }
404
405 public Node getInterface(String feature)
406 {
407 throw new UnsupportedOperationException ();
408 }
409
410
423
424
426 public ArrayList <Depend> getDependencyList()
427 {
428 if (_owner != null)
429 return _owner.getDependencyList();
430 else
431 return null;
432 }
433
434 boolean isNameValid(String name)
435 {
436 if (name == null || name.length() == 0)
437 return false;
438
439 if (! XmlChar.isNameStart(name.charAt(0)))
440 return false;
441
442 for (int i = 1; i < name.length(); i++) {
443 char ch = name.charAt(i);
444 if (! XmlChar.isNameChar(ch))
445 return false;
446 }
447
448 return true;
449 }
450
451 public boolean checkValid()
452 throws Exception
453 {
454 if (_parent == null) {
455 if (_next != null || _previous != null)
456 throw new Exception ("null bad: " + this);
457 else
458 return true;
459 }
460
461 if (_parent._owner != _owner && _owner != _parent)
462 throw new Exception ("owner bad: " + this);
463
464 QAbstractNode ptr = _parent._firstChild;
465 for (; ptr != null && ptr != this; ptr = ptr._next) {
466 }
467 if (ptr == null)
468 throw new Exception ("not in parent: " + this);
469
470 ptr = _parent._lastChild;
471 for (; ptr != null && ptr != this; ptr = ptr._previous) {
472 }
473 if (ptr == null)
474 throw new Exception ("not in parent: " + this);
475
476 if (_next == null && _parent._lastChild != this)
477 throw new Exception ("bad tail: " + this);
478
479 else if (_next != null && _next._previous != this)
480 throw new Exception ("bad link: " + this);
481
482 if (_previous == null && _parent._firstChild != this)
483 throw new Exception ("bad head: " + this);
484 else if (_previous != null && _previous._next != this)
485 throw new Exception ("bad link: " + this);
486
487 return true;
488 }
489
490 void print(XmlPrinter out) throws IOException
491 {
492 }
493
494 public void print(WriteStream out) throws IOException
495 {
496 new XmlPrinter(out).printXml(this);
497 }
498
499 public void printPretty(WriteStream out) throws IOException
500 {
501 new XmlPrinter(out).printPrettyXml(this);
502 }
503
504 public void printHtml(WriteStream out) throws IOException
505 {
506 new XmlPrinter(out).printHtml(this);
507 }
508
509 private Object writeReplace()
510 {
511 return new SerializedXml(this);
512 }
513 }
514
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