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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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private final XMLStreamReader staxStreamReader; |
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|
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private XMLFilterImplEx filter; |
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public XMLStreamReaderToContentHandler(XMLStreamReader staxCore, XMLFilterImplEx filter) |
77 | 0 | { |
78 | 0 | staxStreamReader = staxCore; |
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|
80 | 0 | this.filter = filter; |
81 | 0 | } |
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|
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public void bridge() throws XMLStreamException |
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{ |
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try |
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{ |
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|
88 | 0 | int depth = 0; |
89 | 0 | boolean isDocument = false; |
90 | |
|
91 | 0 | handleStartDocument(); |
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|
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|
94 | 0 | int event = staxStreamReader.getEventType(); |
95 | 0 | if (event == XMLStreamConstants.START_DOCUMENT) |
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{ |
97 | 0 | isDocument = true; |
98 | 0 | event = staxStreamReader.next(); |
99 | 0 | while (event != XMLStreamConstants.START_ELEMENT) |
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{ |
101 | 0 | switch (event) |
102 | |
{ |
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case XMLStreamConstants.COMMENT : |
104 | 0 | handleComment(); |
105 | 0 | break; |
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case XMLStreamConstants.PROCESSING_INSTRUCTION : |
107 | 0 | handlePI(); |
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break; |
109 | |
} |
110 | 0 | event = staxStreamReader.next(); |
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} |
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} |
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|
114 | 0 | if (event != XMLStreamConstants.START_ELEMENT) |
115 | 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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|
122 | 0 | switch (event) |
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{ |
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case XMLStreamConstants.START_ELEMENT : |
125 | 0 | depth++; |
126 | 0 | handleStartElement(); |
127 | 0 | break; |
128 | |
case XMLStreamConstants.END_ELEMENT : |
129 | 0 | handleEndElement(); |
130 | 0 | depth--; |
131 | 0 | break; |
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case XMLStreamConstants.CHARACTERS : |
133 | 0 | handleCharacters(); |
134 | 0 | break; |
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case XMLStreamConstants.ENTITY_REFERENCE : |
136 | 0 | handleEntityReference(); |
137 | 0 | break; |
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case XMLStreamConstants.PROCESSING_INSTRUCTION : |
139 | 0 | handlePI(); |
140 | 0 | break; |
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case XMLStreamConstants.COMMENT : |
142 | 0 | handleComment(); |
143 | 0 | break; |
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case XMLStreamConstants.DTD : |
145 | 0 | handleDTD(); |
146 | 0 | break; |
147 | |
case XMLStreamConstants.ATTRIBUTE : |
148 | 0 | handleAttribute(); |
149 | 0 | break; |
150 | |
case XMLStreamConstants.NAMESPACE : |
151 | 0 | handleNamespace(); |
152 | 0 | break; |
153 | |
case XMLStreamConstants.CDATA : |
154 | 0 | handleCDATA(); |
155 | 0 | break; |
156 | |
case XMLStreamConstants.ENTITY_DECLARATION : |
157 | 0 | handleEntityDecl(); |
158 | 0 | break; |
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case XMLStreamConstants.NOTATION_DECLARATION : |
160 | 0 | handleNotationDecl(); |
161 | 0 | break; |
162 | |
case XMLStreamConstants.SPACE : |
163 | 0 | handleSpace(); |
164 | 0 | break; |
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default : |
166 | 0 | throw new InternalError("processing event: " + event); |
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} |
168 | |
|
169 | 0 | event = staxStreamReader.next(); |
170 | |
} |
171 | 0 | while (depth != 0); |
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|
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|
174 | 0 | if (isDocument) |
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{ |
176 | 0 | while (event != XMLStreamConstants.END_DOCUMENT) |
177 | |
{ |
178 | 0 | switch (event) |
179 | |
{ |
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case XMLStreamConstants.COMMENT : |
181 | 0 | handleComment(); |
182 | 0 | break; |
183 | |
case XMLStreamConstants.PROCESSING_INSTRUCTION : |
184 | 0 | handlePI(); |
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break; |
186 | |
} |
187 | 0 | event = staxStreamReader.next(); |
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} |
189 | |
} |
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|
191 | 0 | handleEndDocument(); |
192 | |
} |
193 | 0 | catch (SAXException e) |
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{ |
195 | 0 | throw new XMLStreamException(e); |
196 | 0 | } |
197 | 0 | } |
198 | |
|
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protected void handleEndDocument() throws SAXException |
200 | |
{ |
201 | 0 | filter.endDocument(); |
202 | 0 | } |
203 | |
|
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protected void handleStartDocument() throws SAXException |
205 | |
{ |
206 | 0 | final Location location = staxStreamReader.getLocation(); |
207 | 0 | if (location != null) |
208 | |
{ |
209 | 0 | filter.setDocumentLocator(new Locator() |
210 | 0 | { |
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public int getColumnNumber() |
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{ |
213 | 0 | return location.getColumnNumber(); |
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} |
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|
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public int getLineNumber() |
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{ |
218 | 0 | return location.getLineNumber(); |
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} |
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|
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public String getPublicId() |
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{ |
223 | 0 | return location.getPublicId(); |
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} |
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|
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public String getSystemId() |
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{ |
228 | 0 | return location.getSystemId(); |
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} |
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}); |
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} |
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else |
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{ |
234 | 0 | filter.setDocumentLocator(new DummyLocator()); |
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} |
236 | 0 | filter.startDocument(); |
237 | 0 | } |
238 | |
|
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protected void handlePI() throws XMLStreamException |
240 | |
{ |
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try |
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{ |
243 | 0 | filter.processingInstruction(staxStreamReader.getPITarget(), staxStreamReader.getPIData()); |
244 | |
} |
245 | 0 | catch (SAXException e) |
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{ |
247 | 0 | throw new XMLStreamException(e); |
248 | 0 | } |
249 | 0 | } |
250 | |
|
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protected void handleCharacters() throws XMLStreamException |
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{ |
253 | 0 | char[] chars = staxStreamReader.getText().toCharArray(); |
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|
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try |
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{ |
257 | 0 | filter.characters(chars, 0, chars.length); |
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} |
259 | 0 | catch (SAXException e) |
260 | |
{ |
261 | 0 | throw new XMLStreamException(e); |
262 | 0 | } |
263 | 0 | } |
264 | |
|
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protected void handleEndElement() throws XMLStreamException |
266 | |
{ |
267 | 0 | QName qName = staxStreamReader.getName(); |
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|
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try |
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{ |
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|
272 | 0 | String prefix = qName.getPrefix(); |
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String rawname; |
274 | 0 | if (prefix == null || prefix.length() == 0) |
275 | 0 | rawname = qName.getLocalPart(); |
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else |
277 | 0 | rawname = prefix + ':' + qName.getLocalPart(); |
278 | |
|
279 | 0 | filter.endElement(qName.getNamespaceURI(), qName.getLocalPart(), rawname); |
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|
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|
282 | 0 | int nsCount = staxStreamReader.getNamespaceCount(); |
283 | 0 | for (int i = nsCount - 1; i >= 0; i--) |
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{ |
285 | 0 | String nsprefix = staxStreamReader.getNamespacePrefix(i); |
286 | 0 | if (nsprefix == null) |
287 | |
{ |
288 | 0 | nsprefix = ""; |
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} |
290 | 0 | filter.endPrefixMapping(nsprefix); |
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} |
292 | |
} |
293 | 0 | catch (SAXException e) |
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{ |
295 | 0 | throw new XMLStreamException(e); |
296 | 0 | } |
297 | 0 | } |
298 | |
|
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protected void handleStartElement() throws XMLStreamException |
300 | |
{ |
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|
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try |
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{ |
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|
305 | 0 | int nsCount = staxStreamReader.getNamespaceCount(); |
306 | 0 | for (int i = 0; i < nsCount; i++) |
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{ |
308 | 0 | String uri = staxStreamReader.getNamespaceURI(i); |
309 | 0 | if (uri == null) |
310 | |
{ |
311 | 0 | uri = ""; |
312 | |
} |
313 | 0 | String prefix = staxStreamReader.getNamespacePrefix(i); |
314 | 0 | if (prefix == null) |
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{ |
316 | 0 | prefix = ""; |
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} |
318 | 0 | filter.startPrefixMapping(prefix, uri); |
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} |
320 | |
|
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|
322 | 0 | QName qName = staxStreamReader.getName(); |
323 | 0 | String prefix = qName.getPrefix(); |
324 | |
String rawname; |
325 | 0 | if (prefix == null || prefix.length() == 0) |
326 | 0 | rawname = qName.getLocalPart(); |
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else |
328 | 0 | rawname = prefix + ':' + qName.getLocalPart(); |
329 | 0 | Attributes attrs = getAttributes(); |
330 | 0 | filter.startElement(qName.getNamespaceURI(), qName.getLocalPart(), rawname, attrs); |
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} |
332 | 0 | catch (SAXException e) |
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{ |
334 | 0 | throw new XMLStreamException(e); |
335 | 0 | } |
336 | 0 | } |
337 | |
|
338 | |
|
339 | |
|
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|
341 | |
|
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|
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|
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protected Attributes getAttributes() |
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{ |
346 | 0 | AttributesImpl attrs = new AttributesImpl(); |
347 | |
|
348 | 0 | int eventType = staxStreamReader.getEventType(); |
349 | 0 | if (eventType != XMLStreamConstants.ATTRIBUTE && eventType != XMLStreamConstants.START_ELEMENT) |
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{ |
351 | 0 | throw new InternalError("getAttributes() attempting to process: " + eventType); |
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} |
353 | |
|
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|
355 | 0 | if (filter.getNamespacePrefixes()) |
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{ |
357 | 0 | for (int i = 0; i < staxStreamReader.getNamespaceCount(); i++) |
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{ |
359 | 0 | String uri = staxStreamReader.getNamespaceURI(i); |
360 | 0 | if (uri == null) uri = ""; |
361 | |
|
362 | 0 | String prefix = staxStreamReader.getNamespacePrefix(i); |
363 | 0 | if (prefix == null) prefix = ""; |
364 | |
|
365 | 0 | String qName = "xmlns"; |
366 | 0 | if (prefix.length() == 0) |
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{ |
368 | 0 | prefix = qName; |
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} |
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else |
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{ |
372 | 0 | qName = qName + ':' + prefix; |
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} |
374 | 0 | attrs.addAttribute("http://www.w3.org/2000/xmlns/", prefix, qName, "CDATA", uri); |
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} |
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} |
377 | |
|
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|
379 | 0 | for (int i = 0; i < staxStreamReader.getAttributeCount(); i++) |
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{ |
381 | 0 | String uri = staxStreamReader.getAttributeNamespace(i); |
382 | 0 | if (uri == null) uri = ""; |
383 | 0 | String localName = staxStreamReader.getAttributeLocalName(i); |
384 | 0 | String prefix = staxStreamReader.getAttributePrefix(i); |
385 | |
String qName; |
386 | 0 | if (prefix == null || prefix.length() == 0) |
387 | 0 | qName = localName; |
388 | |
else |
389 | 0 | qName = prefix + ':' + localName; |
390 | 0 | String type = staxStreamReader.getAttributeType(i); |
391 | 0 | String value = staxStreamReader.getAttributeValue(i); |
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|
393 | 0 | attrs.addAttribute(uri, localName, qName, type, value); |
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} |
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|
396 | 0 | return attrs; |
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} |
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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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|
404 | 0 | } |
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|
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protected void handleAttribute() |
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{ |
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|
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|
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|
411 | 0 | } |
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|
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protected void handleDTD() |
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{ |
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|
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|
417 | 0 | } |
418 | |
|
419 | |
protected void handleComment() throws XMLStreamException |
420 | |
{ |
421 | 0 | char[] chars = staxStreamReader.getText().toCharArray(); |
422 | |
|
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try |
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{ |
425 | 0 | filter.comment(chars, 0, chars.length); |
426 | |
} |
427 | 0 | catch (SAXException e) |
428 | |
{ |
429 | 0 | throw new XMLStreamException(e); |
430 | 0 | } |
431 | 0 | } |
432 | |
|
433 | |
protected void handleEntityReference() |
434 | |
{ |
435 | |
|
436 | 0 | } |
437 | |
|
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protected void handleSpace() |
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{ |
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|
441 | |
|
442 | 0 | } |
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|
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protected void handleNotationDecl() |
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{ |
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|
447 | |
|
448 | 0 | } |
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|
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protected void handleEntityDecl() |
451 | |
{ |
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|
453 | |
|
454 | 0 | } |
455 | |
|
456 | |
protected void handleCDATA() throws XMLStreamException |
457 | |
{ |
458 | 0 | char[] chars = staxStreamReader.getText().toCharArray(); |
459 | |
|
460 | |
try |
461 | |
{ |
462 | 0 | filter.startCDATA(); |
463 | 0 | filter.characters(chars, 0, chars.length); |
464 | 0 | filter.endCDATA(); |
465 | |
} |
466 | 0 | catch(SAXException e) |
467 | |
{ |
468 | 0 | throw new XMLStreamException(e); |
469 | 0 | } |
470 | 0 | } |
471 | |
} |