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package org.mule.module.xml.stax; |
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|
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import javanet.staxutils.DummyLocator; |
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import javanet.staxutils.StAXReaderToContentHandler; |
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import javanet.staxutils.helpers.XMLFilterImplEx; |
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|
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import javax.xml.namespace.QName; |
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import javax.xml.stream.Location; |
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import javax.xml.stream.XMLStreamConstants; |
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import javax.xml.stream.XMLStreamException; |
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import javax.xml.stream.XMLStreamReader; |
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|
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import org.xml.sax.Attributes; |
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import org.xml.sax.Locator; |
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import org.xml.sax.SAXException; |
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import org.xml.sax.helpers.AttributesImpl; |
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public class XMLStreamReaderToContentHandler implements StAXReaderToContentHandler |
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{ |
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|
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|
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private final XMLStreamReader staxStreamReader; |
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|
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|
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private XMLFilterImplEx filter; |
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public XMLStreamReaderToContentHandler(XMLStreamReader staxCore, XMLFilterImplEx filter) |
77 | 12 | { |
78 | 12 | staxStreamReader = staxCore; |
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|
80 | 12 | this.filter = filter; |
81 | 12 | } |
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|
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public void bridge() throws XMLStreamException |
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{ |
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|
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try |
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{ |
91 | |
|
92 | 12 | int depth = 0; |
93 | 12 | boolean isDocument = false; |
94 | |
|
95 | 12 | handleStartDocument(); |
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|
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|
98 | 12 | int event = staxStreamReader.getEventType(); |
99 | 12 | if (event == XMLStreamConstants.START_DOCUMENT) |
100 | |
{ |
101 | 12 | isDocument = true; |
102 | 12 | event = staxStreamReader.next(); |
103 | 32 | while (event != XMLStreamConstants.START_ELEMENT) |
104 | |
{ |
105 | 20 | switch (event) |
106 | |
{ |
107 | |
case XMLStreamConstants.COMMENT : |
108 | 4 | handleComment(); |
109 | 4 | break; |
110 | |
case XMLStreamConstants.PROCESSING_INSTRUCTION : |
111 | 0 | handlePI(); |
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break; |
113 | |
} |
114 | 20 | event = staxStreamReader.next(); |
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}; |
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} |
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|
118 | 12 | if (event != XMLStreamConstants.START_ELEMENT) |
119 | 0 | throw new IllegalStateException("The current event is not START_ELEMENT\n but" + event); |
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|
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do |
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{ |
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|
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|
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|
126 | 6284 | switch (event) |
127 | |
{ |
128 | |
case XMLStreamConstants.START_ELEMENT : |
129 | 1564 | depth++; |
130 | 1564 | handleStartElement(); |
131 | 1564 | break; |
132 | |
case XMLStreamConstants.END_ELEMENT : |
133 | 1564 | handleEndElement(); |
134 | 1564 | depth--; |
135 | 1564 | break; |
136 | |
case XMLStreamConstants.CHARACTERS : |
137 | 3136 | handleCharacters(); |
138 | 3136 | break; |
139 | |
case XMLStreamConstants.ENTITY_REFERENCE : |
140 | 0 | handleEntityReference(); |
141 | 0 | break; |
142 | |
case XMLStreamConstants.PROCESSING_INSTRUCTION : |
143 | 0 | handlePI(); |
144 | 0 | break; |
145 | |
case XMLStreamConstants.COMMENT : |
146 | 20 | handleComment(); |
147 | 20 | break; |
148 | |
case XMLStreamConstants.DTD : |
149 | 0 | handleDTD(); |
150 | 0 | break; |
151 | |
case XMLStreamConstants.ATTRIBUTE : |
152 | 0 | handleAttribute(); |
153 | 0 | break; |
154 | |
case XMLStreamConstants.NAMESPACE : |
155 | 0 | handleNamespace(); |
156 | 0 | break; |
157 | |
case XMLStreamConstants.CDATA : |
158 | 0 | handleCDATA(); |
159 | 0 | break; |
160 | |
case XMLStreamConstants.ENTITY_DECLARATION : |
161 | 0 | handleEntityDecl(); |
162 | 0 | break; |
163 | |
case XMLStreamConstants.NOTATION_DECLARATION : |
164 | 0 | handleNotationDecl(); |
165 | 0 | break; |
166 | |
case XMLStreamConstants.SPACE : |
167 | 0 | handleSpace(); |
168 | 0 | break; |
169 | |
default : |
170 | 0 | throw new InternalError("processing event: " + event); |
171 | |
} |
172 | |
|
173 | 6284 | event = staxStreamReader.next(); |
174 | |
} |
175 | 6284 | while (depth != 0); |
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|
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|
178 | 12 | if (isDocument) |
179 | |
{ |
180 | 20 | while (event != XMLStreamConstants.END_DOCUMENT) |
181 | |
{ |
182 | 8 | switch (event) |
183 | |
{ |
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case XMLStreamConstants.COMMENT : |
185 | 0 | handleComment(); |
186 | 0 | break; |
187 | |
case XMLStreamConstants.PROCESSING_INSTRUCTION : |
188 | 0 | handlePI(); |
189 | |
break; |
190 | |
} |
191 | 8 | event = staxStreamReader.next(); |
192 | |
} |
193 | |
} |
194 | |
|
195 | 12 | handleEndDocument(); |
196 | |
} |
197 | 0 | catch (SAXException e) |
198 | |
{ |
199 | 0 | throw new XMLStreamException(e); |
200 | 12 | } |
201 | 12 | } |
202 | |
|
203 | |
protected void handleEndDocument() throws SAXException |
204 | |
{ |
205 | 12 | filter.endDocument(); |
206 | 12 | } |
207 | |
|
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protected void handleStartDocument() throws SAXException |
209 | |
{ |
210 | 12 | final Location location = staxStreamReader.getLocation(); |
211 | 12 | if (location != null) |
212 | |
{ |
213 | 12 | filter.setDocumentLocator(new Locator() |
214 | |
{ |
215 | |
public int getColumnNumber() |
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{ |
217 | 0 | return location.getColumnNumber(); |
218 | |
} |
219 | |
|
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public int getLineNumber() |
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{ |
222 | 0 | return location.getLineNumber(); |
223 | |
} |
224 | |
|
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public String getPublicId() |
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{ |
227 | 0 | return location.getPublicId(); |
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} |
229 | |
|
230 | 12 | public String getSystemId() |
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{ |
232 | 732 | return location.getSystemId(); |
233 | |
} |
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}); |
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} |
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else |
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{ |
238 | 0 | filter.setDocumentLocator(new DummyLocator()); |
239 | |
} |
240 | 12 | filter.startDocument(); |
241 | 12 | } |
242 | |
|
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protected void handlePI() throws XMLStreamException |
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{ |
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try |
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{ |
247 | 0 | filter.processingInstruction(staxStreamReader.getPITarget(), staxStreamReader.getPIData()); |
248 | |
} |
249 | 0 | catch (SAXException e) |
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{ |
251 | 0 | throw new XMLStreamException(e); |
252 | 0 | } |
253 | 0 | } |
254 | |
|
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protected void handleCharacters() throws XMLStreamException |
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{ |
257 | 3136 | char[] chars = staxStreamReader.getText().toCharArray(); |
258 | |
|
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try |
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{ |
261 | 3136 | filter.characters(chars, 0, chars.length); |
262 | |
} |
263 | 0 | catch (SAXException e) |
264 | |
{ |
265 | 0 | throw new XMLStreamException(e); |
266 | 3136 | } |
267 | 3136 | } |
268 | |
|
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protected void handleEndElement() throws XMLStreamException |
270 | |
{ |
271 | 1564 | QName qName = staxStreamReader.getName(); |
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|
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try |
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{ |
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|
276 | 1564 | String prefix = qName.getPrefix(); |
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String rawname; |
278 | 1564 | if (prefix == null || prefix.length() == 0) |
279 | 1564 | rawname = qName.getLocalPart(); |
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else |
281 | 0 | rawname = prefix + ':' + qName.getLocalPart(); |
282 | |
|
283 | 1564 | filter.endElement(qName.getNamespaceURI(), qName.getLocalPart(), rawname); |
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|
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|
286 | 1564 | int nsCount = staxStreamReader.getNamespaceCount(); |
287 | 1568 | for (int i = nsCount - 1; i >= 0; i--) |
288 | |
{ |
289 | 4 | String nsprefix = staxStreamReader.getNamespacePrefix(i); |
290 | 4 | if (nsprefix == null) |
291 | |
{ |
292 | 4 | nsprefix = ""; |
293 | |
} |
294 | 4 | filter.endPrefixMapping(nsprefix); |
295 | |
} |
296 | |
} |
297 | 0 | catch (SAXException e) |
298 | |
{ |
299 | 0 | throw new XMLStreamException(e); |
300 | 1564 | } |
301 | 1564 | } |
302 | |
|
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protected void handleStartElement() throws XMLStreamException |
304 | |
{ |
305 | |
|
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try |
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{ |
308 | |
|
309 | 1564 | int nsCount = staxStreamReader.getNamespaceCount(); |
310 | 1568 | for (int i = 0; i < nsCount; i++) |
311 | |
{ |
312 | 4 | String uri = staxStreamReader.getNamespaceURI(i); |
313 | 4 | if (uri == null) |
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{ |
315 | 0 | uri = ""; |
316 | |
} |
317 | 4 | String prefix = staxStreamReader.getNamespacePrefix(i); |
318 | 4 | if (prefix == null) |
319 | |
{ |
320 | 4 | prefix = ""; |
321 | |
} |
322 | 4 | filter.startPrefixMapping(prefix, uri); |
323 | |
} |
324 | |
|
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|
326 | 1564 | QName qName = staxStreamReader.getName(); |
327 | 1564 | String prefix = qName.getPrefix(); |
328 | |
String rawname; |
329 | 1564 | if (prefix == null || prefix.length() == 0) |
330 | 1564 | rawname = qName.getLocalPart(); |
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else |
332 | 0 | rawname = prefix + ':' + qName.getLocalPart(); |
333 | 1564 | Attributes attrs = getAttributes(); |
334 | 1564 | filter.startElement(qName.getNamespaceURI(), qName.getLocalPart(), rawname, attrs); |
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} |
336 | 0 | catch (SAXException e) |
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{ |
338 | 0 | throw new XMLStreamException(e); |
339 | 1564 | } |
340 | 1564 | } |
341 | |
|
342 | |
|
343 | |
|
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|
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|
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|
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|
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protected Attributes getAttributes() |
349 | |
{ |
350 | 1564 | AttributesImpl attrs = new AttributesImpl(); |
351 | |
|
352 | 1564 | int eventType = staxStreamReader.getEventType(); |
353 | 1564 | if (eventType != XMLStreamConstants.ATTRIBUTE && eventType != XMLStreamConstants.START_ELEMENT) |
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{ |
355 | 0 | throw new InternalError("getAttributes() attempting to process: " + eventType); |
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} |
357 | |
|
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|
359 | 1564 | if (filter.getNamespacePrefixes()) |
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{ |
361 | 836 | for (int i = 0; i < staxStreamReader.getNamespaceCount(); i++) |
362 | |
{ |
363 | 4 | String uri = staxStreamReader.getNamespaceURI(i); |
364 | 4 | if (uri == null) uri = ""; |
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|
366 | 4 | String prefix = staxStreamReader.getNamespacePrefix(i); |
367 | 4 | if (prefix == null) prefix = ""; |
368 | |
|
369 | 4 | String qName = "xmlns"; |
370 | 4 | if (prefix.length() == 0) |
371 | |
{ |
372 | 4 | prefix = qName; |
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} |
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else |
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{ |
376 | 0 | qName = qName + ':' + prefix; |
377 | |
} |
378 | 4 | attrs.addAttribute("http://www.w3.org/2000/xmlns/", prefix, qName, "CDATA", uri); |
379 | |
} |
380 | |
} |
381 | |
|
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|
383 | 1584 | for (int i = 0; i < staxStreamReader.getAttributeCount(); i++) |
384 | |
{ |
385 | 20 | String uri = staxStreamReader.getAttributeNamespace(i); |
386 | 20 | if (uri == null) uri = ""; |
387 | 20 | String localName = staxStreamReader.getAttributeLocalName(i); |
388 | 20 | String prefix = staxStreamReader.getAttributePrefix(i); |
389 | |
String qName; |
390 | 20 | if (prefix == null || prefix.length() == 0) |
391 | 20 | qName = localName; |
392 | |
else |
393 | 0 | qName = prefix + ':' + localName; |
394 | 20 | String type = staxStreamReader.getAttributeType(i); |
395 | 20 | String value = staxStreamReader.getAttributeValue(i); |
396 | |
|
397 | 20 | attrs.addAttribute(uri, localName, qName, type, value); |
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} |
399 | |
|
400 | 1564 | return attrs; |
401 | |
} |
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|
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protected void handleNamespace() |
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{ |
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|
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|
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|
408 | 0 | } |
409 | |
|
410 | |
protected void handleAttribute() |
411 | |
{ |
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|
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|
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|
415 | 0 | } |
416 | |
|
417 | |
protected void handleDTD() |
418 | |
{ |
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|
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|
421 | 0 | } |
422 | |
|
423 | |
protected void handleComment() throws XMLStreamException |
424 | |
{ |
425 | 24 | int textLength = staxStreamReader.getTextLength(); |
426 | 24 | int textStart = staxStreamReader.getTextStart(); |
427 | 24 | char[] chars = new char[textLength]; |
428 | |
|
429 | 24 | staxStreamReader.getTextCharacters(textStart, chars, 0, textLength); |
430 | |
|
431 | |
try |
432 | |
{ |
433 | 24 | filter.comment(chars, 0, textLength); |
434 | |
} |
435 | 0 | catch (SAXException e) |
436 | |
{ |
437 | 0 | throw new XMLStreamException(e); |
438 | 24 | } |
439 | 24 | } |
440 | |
|
441 | |
protected void handleEntityReference() |
442 | |
{ |
443 | |
|
444 | 0 | } |
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|
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protected void handleSpace() |
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{ |
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|
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|
450 | 0 | } |
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|
452 | |
protected void handleNotationDecl() |
453 | |
{ |
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|
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|
456 | 0 | } |
457 | |
|
458 | |
protected void handleEntityDecl() |
459 | |
{ |
460 | |
|
461 | |
|
462 | 0 | } |
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|
464 | |
protected void handleCDATA() |
465 | |
{ |
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|
467 | |
|
468 | 0 | } |
469 | |
} |