Source Code Cross Referenced for StreamWriterBufferProcessor.java in  » 6.0-JDK-Modules-com.sun » stream-buffer » com » sun » xml » stream » buffer » stax » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules com.sun » stream buffer » com.sun.xml.stream.buffer.stax 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * The contents of this file are subject to the terms
003:         * of the Common Development and Distribution License
004:         * (the "License").  You may not use this file except
005:         * in compliance with the License.
006:         *
007:         * You can obtain a copy of the license at
008:         * https://jwsdp.dev.java.net/CDDLv1.0.html
009:         * See the License for the specific language governing
010:         * permissions and limitations under the License.
011:         *
012:         * When distributing Covered Code, include this CDDL
013:         * HEADER in each file and include the License file at
014:         * https://jwsdp.dev.java.net/CDDLv1.0.html  If applicable,
015:         * add the following below this CDDL HEADER, with the
016:         * fields enclosed by brackets "[]" replaced with your
017:         * own identifying information: Portions Copyright [yyyy]
018:         * [name of copyright owner]
019:         */
020:
021:        package com.sun.xml.stream.buffer.stax;
022:
023:        import com.sun.xml.stream.buffer.AbstractProcessor;
024:        import com.sun.xml.stream.buffer.XMLStreamBuffer;
025:        import org.jvnet.staxex.XMLStreamWriterEx;
026:
027:        import javax.xml.stream.XMLStreamException;
028:        import javax.xml.stream.XMLStreamWriter;
029:
030:        /**
031:         * A processor of a {@link XMLStreamBuffer} that writes the XML infoset to a
032:         * {@link XMLStreamWriter}.
033:         * 
034:         * @author Paul.Sandoz@Sun.Com
035:         * @author K.Venugopal@sun.com
036:         */
037:        public class StreamWriterBufferProcessor extends AbstractProcessor {
038:
039:            public StreamWriterBufferProcessor() {
040:            }
041:
042:            /**
043:             * @deprecated
044:             *      Use {@link #StreamWriterBufferProcessor(XMLStreamBuffer, boolean)}
045:             */
046:            public StreamWriterBufferProcessor(XMLStreamBuffer buffer) {
047:                setXMLStreamBuffer(buffer, buffer.isFragment());
048:            }
049:
050:            /**
051:             * @param produceFragmentEvent
052:             *      True to generate fragment SAX events without start/endDocument.
053:             *      False to generate a full document SAX events.
054:             */
055:            public StreamWriterBufferProcessor(XMLStreamBuffer buffer,
056:                    boolean produceFragmentEvent) {
057:                setXMLStreamBuffer(buffer, produceFragmentEvent);
058:            }
059:
060:            public final void process(XMLStreamBuffer buffer,
061:                    XMLStreamWriter writer) throws XMLStreamException {
062:                setXMLStreamBuffer(buffer, buffer.isFragment());
063:                process(writer);
064:            }
065:
066:            public void process(XMLStreamWriter writer)
067:                    throws XMLStreamException {
068:                if (_fragmentMode) {
069:                    writeFragment(writer);
070:                } else {
071:                    write(writer);
072:                }
073:            }
074:
075:            /**
076:             * @deprecated
077:             *      Use {@link #setXMLStreamBuffer(XMLStreamBuffer, boolean)}
078:             */
079:            public void setXMLStreamBuffer(XMLStreamBuffer buffer) {
080:                setBuffer(buffer);
081:            }
082:
083:            /**
084:             * @param produceFragmentEvent
085:             *      True to generate fragment SAX events without start/endDocument.
086:             *      False to generate a full document SAX events.
087:             */
088:            public void setXMLStreamBuffer(XMLStreamBuffer buffer,
089:                    boolean produceFragmentEvent) {
090:                setBuffer(buffer, produceFragmentEvent);
091:            }
092:
093:            /**
094:             * Writes a full XML infoset event to the given writer,
095:             * including start/end document.
096:             */
097:            public void write(XMLStreamWriter writer) throws XMLStreamException {
098:
099:                if (!_fragmentMode) {
100:                    if (_treeCount > 1)
101:                        throw new IllegalStateException(
102:                                "forest cannot be written as a full infoset");
103:                    writer.writeStartDocument();
104:                }
105:
106:                // TODO: if we are writing a fragment XMLStreamBuffer as a full document,
107:                // we need to put in-scope namespaces as top-level ns decls.
108:
109:                while (true) {
110:                    int item = _eiiStateTable[peekStructure()];
111:                    writer.flush();
112:
113:                    switch (item) {
114:                    case STATE_DOCUMENT:
115:                        readStructure(); //skip
116:                        break;
117:                    case STATE_ELEMENT_U_LN_QN:
118:                    case STATE_ELEMENT_P_U_LN:
119:                    case STATE_ELEMENT_U_LN:
120:                    case STATE_ELEMENT_LN:
121:                        writeFragment(writer);
122:                        break;
123:                    case STATE_COMMENT_AS_CHAR_ARRAY_SMALL: {
124:                        readStructure();
125:                        final int length = readStructure();
126:                        final int start = readContentCharactersBuffer(length);
127:                        final String comment = new String(
128:                                _contentCharactersBuffer, start, length);
129:                        writer.writeComment(comment);
130:                        break;
131:                    }
132:                    case STATE_COMMENT_AS_CHAR_ARRAY_MEDIUM: {
133:                        readStructure();
134:                        final int length = readStructure16();
135:                        final int start = readContentCharactersBuffer(length);
136:                        final String comment = new String(
137:                                _contentCharactersBuffer, start, length);
138:                        writer.writeComment(comment);
139:                        break;
140:                    }
141:                    case STATE_COMMENT_AS_CHAR_ARRAY_COPY: {
142:                        readStructure();
143:                        final char[] ch = readContentCharactersCopy();
144:                        writer.writeComment(new String(ch));
145:                        break;
146:                    }
147:                    case STATE_PROCESSING_INSTRUCTION:
148:                        readStructure();
149:                        writer.writeProcessingInstruction(
150:                                readStructureString(), readStructureString());
151:                        break;
152:                    case STATE_END: // done
153:                        readStructure();
154:                        writer.writeEndDocument();
155:                        return;
156:                    default:
157:                        throw new XMLStreamException("Invalid State " + item);
158:                    }
159:                }
160:
161:            }
162:
163:            /**
164:             * Writes the buffer as a fragment, meaning
165:             * the writer will not receive start/endDocument events.
166:             *
167:             * <p>
168:             * If {@link XMLStreamBuffer} has a forest, this method will write all the forests.
169:             */
170:            public void writeFragment(XMLStreamWriter writer)
171:                    throws XMLStreamException {
172:                if (writer instanceof  XMLStreamWriterEx) {
173:                    writeFragmentEx((XMLStreamWriterEx) writer);
174:                } else {
175:                    writeFragmentNoEx(writer);
176:                }
177:            }
178:
179:            public void writeFragmentEx(XMLStreamWriterEx writer)
180:                    throws XMLStreamException {
181:                int depth = 0; // used to determine when we are done with a tree.
182:
183:                int item = _eiiStateTable[peekStructure()];
184:                if (item == STATE_DOCUMENT)
185:                    readStructure(); // skip STATE_DOCUMENT
186:
187:                do {
188:
189:                    item = readEiiState();
190:
191:                    switch (item) {
192:                    case STATE_DOCUMENT:
193:                        throw new AssertionError();
194:                    case STATE_ELEMENT_U_LN_QN: {
195:                        depth++;
196:                        final String uri = readStructureString();
197:                        final String localName = readStructureString();
198:                        final String prefix = getPrefixFromQName(readStructureString());
199:                        writer.writeStartElement(prefix, localName, uri);
200:                        writeAttributes(writer);
201:                        break;
202:                    }
203:                    case STATE_ELEMENT_P_U_LN: {
204:                        depth++;
205:                        final String prefix = readStructureString();
206:                        final String uri = readStructureString();
207:                        final String localName = readStructureString();
208:                        writer.writeStartElement(prefix, localName, uri);
209:                        writeAttributes(writer);
210:                        break;
211:                    }
212:                    case STATE_ELEMENT_U_LN: {
213:                        depth++;
214:                        final String uri = readStructureString();
215:                        final String localName = readStructureString();
216:                        writer.writeStartElement("", localName, uri);
217:                        writeAttributes(writer);
218:                        break;
219:                    }
220:                    case STATE_ELEMENT_LN: {
221:                        depth++;
222:                        final String localName = readStructureString();
223:                        writer.writeStartElement(localName);
224:                        writeAttributes(writer);
225:                        break;
226:                    }
227:                    case STATE_TEXT_AS_CHAR_ARRAY_SMALL: {
228:                        final int length = readStructure();
229:                        final int start = readContentCharactersBuffer(length);
230:                        writer.writeCharacters(_contentCharactersBuffer, start,
231:                                length);
232:                        break;
233:                    }
234:                    case STATE_TEXT_AS_CHAR_ARRAY_MEDIUM: {
235:                        final int length = readStructure16();
236:                        final int start = readContentCharactersBuffer(length);
237:                        writer.writeCharacters(_contentCharactersBuffer, start,
238:                                length);
239:                        break;
240:                    }
241:                    case STATE_TEXT_AS_CHAR_ARRAY_COPY: {
242:                        char[] c = readContentCharactersCopy();
243:                        writer.writeCharacters(c, 0, c.length);
244:                        break;
245:                    }
246:                    case STATE_TEXT_AS_STRING: {
247:                        final String s = readContentString();
248:                        writer.writeCharacters(s);
249:                        break;
250:                    }
251:                    case STATE_TEXT_AS_OBJECT: {
252:                        final CharSequence c = (CharSequence) readContentObject();
253:                        writer.writePCDATA(c);
254:                        break;
255:                    }
256:                    case STATE_COMMENT_AS_CHAR_ARRAY_SMALL: {
257:                        final int length = readStructure();
258:                        final int start = readContentCharactersBuffer(length);
259:                        final String comment = new String(
260:                                _contentCharactersBuffer, start, length);
261:                        writer.writeComment(comment);
262:                        break;
263:                    }
264:                    case STATE_COMMENT_AS_CHAR_ARRAY_MEDIUM: {
265:                        final int length = readStructure16();
266:                        final int start = readContentCharactersBuffer(length);
267:                        final String comment = new String(
268:                                _contentCharactersBuffer, start, length);
269:                        writer.writeComment(comment);
270:                        break;
271:                    }
272:                    case STATE_COMMENT_AS_CHAR_ARRAY_COPY: {
273:                        final char[] ch = readContentCharactersCopy();
274:                        writer.writeComment(new String(ch));
275:                        break;
276:                    }
277:                    case STATE_PROCESSING_INSTRUCTION:
278:                        writer.writeProcessingInstruction(
279:                                readStructureString(), readStructureString());
280:                        break;
281:                    case STATE_END:
282:                        writer.writeEndElement();
283:                        depth--;
284:                        if (depth == 0)
285:                            _treeCount--;
286:                        break;
287:                    default:
288:                        throw new XMLStreamException("Invalid State " + item);
289:                    }
290:                } while (depth > 0 || _treeCount > 0);
291:
292:            }
293:
294:            public void writeFragmentNoEx(XMLStreamWriter writer)
295:                    throws XMLStreamException {
296:                int depth = 0;
297:
298:                int item = _eiiStateTable[peekStructure()];
299:                if (item == STATE_DOCUMENT)
300:                    readStructure(); // skip STATE_DOCUMENT
301:
302:                do {
303:                    item = readEiiState();
304:
305:                    switch (item) {
306:                    case STATE_DOCUMENT:
307:                        throw new AssertionError();
308:                    case STATE_ELEMENT_U_LN_QN: {
309:                        depth++;
310:                        final String uri = readStructureString();
311:                        final String localName = readStructureString();
312:                        final String prefix = getPrefixFromQName(readStructureString());
313:                        writer.writeStartElement(prefix, localName, uri);
314:                        writeAttributes(writer);
315:                        break;
316:                    }
317:                    case STATE_ELEMENT_P_U_LN: {
318:                        depth++;
319:                        final String prefix = readStructureString();
320:                        final String uri = readStructureString();
321:                        final String localName = readStructureString();
322:                        writer.writeStartElement(prefix, localName, uri);
323:                        writeAttributes(writer);
324:                        break;
325:                    }
326:                    case STATE_ELEMENT_U_LN: {
327:                        depth++;
328:                        final String uri = readStructureString();
329:                        final String localName = readStructureString();
330:                        writer.writeStartElement("", localName, uri);
331:                        writeAttributes(writer);
332:                        break;
333:                    }
334:                    case STATE_ELEMENT_LN: {
335:                        depth++;
336:                        final String localName = readStructureString();
337:                        writer.writeStartElement(localName);
338:                        writeAttributes(writer);
339:                        break;
340:                    }
341:                    case STATE_TEXT_AS_CHAR_ARRAY_SMALL: {
342:                        final int length = readStructure();
343:                        final int start = readContentCharactersBuffer(length);
344:                        writer.writeCharacters(_contentCharactersBuffer, start,
345:                                length);
346:                        break;
347:                    }
348:                    case STATE_TEXT_AS_CHAR_ARRAY_MEDIUM: {
349:                        final int length = readStructure16();
350:                        final int start = readContentCharactersBuffer(length);
351:                        writer.writeCharacters(_contentCharactersBuffer, start,
352:                                length);
353:                        break;
354:                    }
355:                    case STATE_TEXT_AS_CHAR_ARRAY_COPY: {
356:                        char[] c = readContentCharactersCopy();
357:                        writer.writeCharacters(c, 0, c.length);
358:                        break;
359:                    }
360:                    case STATE_TEXT_AS_STRING: {
361:                        final String s = readContentString();
362:                        writer.writeCharacters(s);
363:                        break;
364:                    }
365:                    case STATE_TEXT_AS_OBJECT: {
366:                        final CharSequence c = (CharSequence) readContentObject();
367:                        writer.writeCharacters(c.toString());
368:                        break;
369:                    }
370:                    case STATE_COMMENT_AS_CHAR_ARRAY_SMALL: {
371:                        final int length = readStructure();
372:                        final int start = readContentCharactersBuffer(length);
373:                        final String comment = new String(
374:                                _contentCharactersBuffer, start, length);
375:                        writer.writeComment(comment);
376:                        break;
377:                    }
378:                    case STATE_COMMENT_AS_CHAR_ARRAY_MEDIUM: {
379:                        final int length = readStructure16();
380:                        final int start = readContentCharactersBuffer(length);
381:                        final String comment = new String(
382:                                _contentCharactersBuffer, start, length);
383:                        writer.writeComment(comment);
384:                        break;
385:                    }
386:                    case STATE_COMMENT_AS_CHAR_ARRAY_COPY: {
387:                        final char[] ch = readContentCharactersCopy();
388:                        writer.writeComment(new String(ch));
389:                        break;
390:                    }
391:                    case STATE_PROCESSING_INSTRUCTION:
392:                        writer.writeProcessingInstruction(
393:                                readStructureString(), readStructureString());
394:                        break;
395:                    case STATE_END:
396:                        writer.writeEndElement();
397:                        depth--;
398:                        if (depth == 0)
399:                            _treeCount--;
400:                        break;
401:                    default:
402:                        throw new XMLStreamException("Invalid State " + item);
403:                    }
404:                } while (depth > 0 && _treeCount > 0);
405:
406:            }
407:
408:            private void writeAttributes(XMLStreamWriter writer)
409:                    throws XMLStreamException {
410:                int item = peekStructure();
411:                if ((item & TYPE_MASK) == T_NAMESPACE_ATTRIBUTE) {
412:                    // Skip the namespace declarations on the element
413:                    // they will have been added already
414:                    item = writeNamespaceAttributes(item, writer);
415:                }
416:                if ((item & TYPE_MASK) == T_ATTRIBUTE) {
417:                    writeAttributes(item, writer);
418:                }
419:            }
420:
421:            private int writeNamespaceAttributes(int item,
422:                    XMLStreamWriter writer) throws XMLStreamException {
423:                do {
424:                    switch (_niiStateTable[item]) {
425:                    case STATE_NAMESPACE_ATTRIBUTE:
426:                        // Undeclaration of default namespace
427:                        writer.writeDefaultNamespace("");
428:                        break;
429:                    case STATE_NAMESPACE_ATTRIBUTE_P:
430:                        // Undeclaration of namespace
431:                        // Declaration with prefix
432:                        writer.writeNamespace(readStructureString(), "");
433:                        break;
434:                    case STATE_NAMESPACE_ATTRIBUTE_P_U:
435:                        // Declaration with prefix
436:                        writer.writeNamespace(readStructureString(),
437:                                readStructureString());
438:                        break;
439:                    case STATE_NAMESPACE_ATTRIBUTE_U:
440:                        // Default declaration
441:                        writer.writeDefaultNamespace(readStructureString());
442:                        break;
443:                    }
444:                    readStructure();
445:
446:                    item = peekStructure();
447:                } while ((item & TYPE_MASK) == T_NAMESPACE_ATTRIBUTE);
448:
449:                return item;
450:            }
451:
452:            private void writeAttributes(int item, XMLStreamWriter writer)
453:                    throws XMLStreamException {
454:                do {
455:                    switch (_aiiStateTable[item]) {
456:                    case STATE_ATTRIBUTE_U_LN_QN: {
457:                        final String uri = readStructureString();
458:                        final String localName = readStructureString();
459:                        final String prefix = getPrefixFromQName(readStructureString());
460:                        writer.writeAttribute(prefix, uri, localName,
461:                                readContentString());
462:                        break;
463:                    }
464:                    case STATE_ATTRIBUTE_P_U_LN:
465:                        writer.writeAttribute(readStructureString(),
466:                                readStructureString(), readStructureString(),
467:                                readContentString());
468:                        break;
469:                    case STATE_ATTRIBUTE_U_LN:
470:                        writer.writeAttribute(readStructureString(),
471:                                readStructureString(), readContentString());
472:                        break;
473:                    case STATE_ATTRIBUTE_LN:
474:                        writer.writeAttribute(readStructureString(),
475:                                readContentString());
476:                        break;
477:                    }
478:                    // Ignore the attribute type
479:                    readStructureString();
480:
481:                    readStructure();
482:
483:                    item = peekStructure();
484:                } while ((item & TYPE_MASK) == T_ATTRIBUTE);
485:            }
486:        }
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