Source Code Cross Referenced for StAXC14nCanonicalizerImpl.java in  » 6.0-JDK-Modules-com.sun » xws-security » com » sun » xml » wss » impl » c14n » 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 » xws security » com.sun.xml.wss.impl.c14n 
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 in
005:         * compliance with the License.
006:         * 
007:         * You can obtain a copy of the license at
008:         * https://glassfish.dev.java.net/public/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 Notice in each file and include the License file
014:         * at https://glassfish.dev.java.net/public/CDDLv1.0.html.
015:         * If applicable, add the following below the CDDL Header,
016:         * with the fields enclosed by brackets [] replaced by
017:         * you own identifying information:
018:         * "Portions Copyrighted [year] [name of copyright owner]"
019:         * 
020:         * Copyright 2006 Sun Microsystems Inc. All Rights Reserved
021:         */
022:
023:        /*
024:         * StAXC14nCanonicalizerImpl.java
025:         *
026:         * Created on August 22, 2005, 4:07 AM
027:         *
028:         * To change this template, choose Tools | Options and locate the template under
029:         * the Source Creation and Management node. Right-click the template and choose
030:         * Open. You can then make changes to the template in the Source Editor.
031:         */
032:
033:        package com.sun.xml.wss.impl.c14n;
034:
035:        import com.sun.xml.wss.impl.misc.UnsyncByteArrayOutputStream;
036:        import java.io.IOException;
037:        import java.util.ArrayList;
038:        import java.util.List;
039:
040:        import javax.xml.stream.XMLStreamException;
041:        import javax.xml.stream.XMLStreamWriter;
042:        import org.xml.sax.helpers.NamespaceSupport;
043:
044:        /**
045:         *
046:         * @author K.Venugopal@sun.com
047:         */
048:
049:        /*
050:         * Test,
051:         * Improve performance
052:         * handle PI
053:         */
054:        public class StAXC14nCanonicalizerImpl extends BaseCanonicalizer
055:                implements  XMLStreamWriter {
056:
057:            boolean closeStartTag = false;
058:            NamespaceSupport nsContext = new NamespaceSupport();
059:            private javax.xml.namespace.NamespaceContext namespaceContext = null;
060:            ElementName[] elementNames = new ElementName[10];
061:
062:            protected UnsyncByteArrayOutputStream elemBuffer = null;
063:
064:            /** Creates a new instance of StAXC14nCanonicalizerImpl */
065:            public StAXC14nCanonicalizerImpl() {
066:                //_attrResult = new TreeSet(new StAXAttrSorter(false));
067:                _attrResult = new ArrayList();
068:                for (int i = 0; i < 4; i++) {
069:                    _attrs.add(new StAXAttr());
070:                }
071:                for (int i = 0; i < 10; i++) {
072:                    elementNames[i] = new ElementName();
073:                }
074:                elemBuffer = new UnsyncByteArrayOutputStream();
075:            }
076:
077:            /**
078:             * This method has not effect when called.
079:             * 
080:             * @throws javax.xml._stream.XMLStreamException {@inheritDoc}
081:             */
082:            public void close() throws XMLStreamException {
083:                //no-op
084:            }
085:
086:            public void flush() throws XMLStreamException {
087:                //no-op
088:            }
089:
090:            public javax.xml.namespace.NamespaceContext getNamespaceContext() {
091:                return namespaceContext;
092:            }
093:
094:            public NamespaceSupport getNSContext() {
095:                return nsContext;
096:            }
097:
098:            public String getPrefix(String namespaceURI)
099:                    throws XMLStreamException {
100:                return nsContext.getPrefix(namespaceURI);
101:            }
102:
103:            public Object getProperty(String str)
104:                    throws IllegalArgumentException {
105:                //throw new UnsupportedOperationException();
106:                return null;
107:            }
108:
109:            public void setDefaultNamespace(String str)
110:                    throws XMLStreamException {
111:                nsContext.declarePrefix("", str);
112:            }
113:
114:            public void setNamespaceContext(
115:                    javax.xml.namespace.NamespaceContext namespaceContext)
116:                    throws XMLStreamException {
117:                this .namespaceContext = namespaceContext;
118:            }
119:
120:            public void setPrefix(String str, String str1)
121:                    throws XMLStreamException {
122:                nsContext.declarePrefix(str, str1);
123:            }
124:
125:            /**
126:             * Creates a DOM Atrribute @see org.w3c.dom.Node and associates it with the current DOM element @see org.w3c.dom.Node.
127:             * 
128:             * @param localName {@inheritDoc}
129:             * @param value {@inheritDoc}
130:             * @throws javax.xml._stream.XMLStreamException {@inheritDoc}
131:             */
132:            public void writeAttribute(String localName, String value)
133:                    throws XMLStreamException {
134:                writeAttribute("", "", localName, value);
135:            }
136:
137:            public void writeAttribute(String namespaceURI, String localName,
138:                    String value) throws XMLStreamException {
139:                String prefix = "";
140:                prefix = nsContext.getPrefix(namespaceURI);
141:                writeAttribute(prefix, "", localName, value);
142:            }
143:
144:            public void writeAttribute(String prefix, String namespaceURI,
145:                    String localName, String value) throws XMLStreamException {
146:                StAXAttr attr = getAttribute();
147:                attr.setLocalName(localName);
148:                attr.setValue(value);
149:                attr.setPrefix(prefix);
150:                attr.setUri(namespaceURI);
151:                _attrResult.add(attr);
152:            }
153:
154:            public void writeCData(String data) throws XMLStreamException {
155:                try {
156:                    closeStartTag();
157:                    outputTextToWriter(data, _stream);
158:                } catch (IOException ex) {
159:                    throw new RuntimeException(ex);
160:                }
161:            }
162:
163:            public void writeCharacters(String charData)
164:                    throws XMLStreamException {
165:                try {
166:                    closeStartTag();
167:                    outputTextToWriter(charData, _stream);
168:                } catch (IOException ex) {
169:                    throw new RuntimeException(ex);
170:                }
171:            }
172:
173:            public void writeCharacters(char[] values, int param, int param2)
174:                    throws XMLStreamException {
175:                try {
176:                    closeStartTag();
177:                    outputTextToWriter(values, param, param2, _stream);
178:                } catch (IOException ex) {
179:                    throw new RuntimeException(ex);
180:                }
181:            }
182:
183:            public void writeComment(String str) throws XMLStreamException {
184:
185:            }
186:
187:            public void writeDTD(String str) throws XMLStreamException {
188:                throw new UnsupportedOperationException();
189:            }
190:
191:            public void writeDefaultNamespace(String namespaceURI)
192:                    throws XMLStreamException {
193:                _defURI = namespaceURI;
194:                writeNamespace("", namespaceURI);
195:
196:            }
197:
198:            public void writeEmptyElement(String localName)
199:                    throws XMLStreamException {
200:                writeEmptyElement("", localName, "");
201:            }
202:
203:            public void writeEmptyElement(String namespaceURI, String localName)
204:                    throws XMLStreamException {
205:
206:                String prefix = nsContext.getPrefix(namespaceURI);
207:                writeEmptyElement(prefix, localName, namespaceURI);
208:            }
209:
210:            public void writeEmptyElement(String prefix, String localName,
211:                    String namespaceURI) throws XMLStreamException {
212:                closeStartTag();
213:
214:                try {
215:                    _stream.write('<');
216:                    if ((prefix != null && prefix.length() == 0)
217:                            || prefix == null) {
218:                        writeStringToUtf8(localName, _stream);
219:                    } else {
220:                        writeStringToUtf8(prefix, _stream);
221:                        writeStringToUtf8(":", _stream);
222:                        writeStringToUtf8(localName, _stream);
223:
224:                    }
225:
226:                    _stream.write('>');
227:                    _stream.write(_END_TAG);
228:                    if ((prefix != null && prefix.length() == 0)
229:                            || prefix == null) {
230:                        writeStringToUtf8(localName, _stream);
231:                    } else {
232:                        writeStringToUtf8(prefix, _stream);
233:                        writeStringToUtf8(":", _stream);
234:                        writeStringToUtf8(localName, _stream);
235:
236:                    }
237:                    _stream.write('>');
238:                } catch (IOException ex) {
239:                    throw new RuntimeException(ex);
240:                }
241:
242:            }
243:
244:            public void writeEndDocument() throws XMLStreamException {
245:                while (_depth > 0) {
246:                    writeEndElement();
247:                }
248:            }
249:
250:            public void writeEndElement() throws XMLStreamException {
251:                //ElementName qname =  elementNames[--_depth];
252:                closeStartTag();
253:                if (_depth == 0) {
254:                    return;
255:                }
256:                if (_ncContextState[_depth]) {
257:                    nsContext.popContext();
258:                }
259:                try {
260:                    _stream.write(_END_TAG);
261:                    //writeStringToUtf8 (qname,_stream);
262:                    ElementName en = elementNames[--_depth];
263:                    _stream.write(en.getUtf8Data().getBytes(), 0, en
264:                            .getUtf8Data().getLength());
265:                    en.getUtf8Data().reset();
266:                    _stream.write('>');
267:                } catch (IOException ex) {
268:                    throw new RuntimeException(ex);
269:                }
270:            }
271:
272:            public void writeEntityRef(String str) throws XMLStreamException {
273:                throw new UnsupportedOperationException();
274:            }
275:
276:            public void writeNamespace(String prefix, String namespaceURI)
277:                    throws XMLStreamException {
278:                String duri = nsContext.getURI(prefix);
279:                boolean add = false;
280:                if (duri == null || !duri.equals(namespaceURI)) {
281:                    add = true;
282:                }
283:                if (add && !_ncContextState[_depth - 1]) {
284:                    nsContext.pushContext();
285:                    _ncContextState[_depth - 1] = true;
286:                }
287:                if (add) {
288:                    nsContext.declarePrefix(prefix, namespaceURI);
289:                    AttributeNS attrNS = getAttributeNS();
290:                    attrNS.setPrefix(prefix);
291:                    attrNS.setUri(namespaceURI);
292:                    _nsResult.add(attrNS);
293:                }
294:            }
295:
296:            public void writeProcessingInstruction(String target)
297:                    throws XMLStreamException {
298:                try {
299:                    outputPItoWriter(target, "", _stream);
300:                } catch (IOException ex) {
301:                    throw new RuntimeException(ex);
302:                }
303:            }
304:
305:            public void writeProcessingInstruction(String target, String data)
306:                    throws XMLStreamException {
307:                try {
308:                    outputPItoWriter(target, data, _stream);
309:                } catch (IOException ex) {
310:                    throw new RuntimeException(ex);
311:                }
312:            }
313:
314:            public void writeStartDocument() throws XMLStreamException {
315:            }
316:
317:            public void writeStartDocument(String version)
318:                    throws XMLStreamException {
319:            }
320:
321:            public void writeStartDocument(String encoding, String version)
322:                    throws XMLStreamException {
323:            }
324:
325:            public void writeStartElement(String localName)
326:                    throws XMLStreamException {
327:                writeStartElement("", localName, "");
328:            }
329:
330:            public void writeStartElement(String namespaceURI, String localName)
331:                    throws XMLStreamException {
332:                String prefix = nsContext.getPrefix(namespaceURI);
333:                writeStartElement(prefix, localName, namespaceURI);
334:            }
335:
336:            public void writeStartElement(String prefix, String localName,
337:                    String namespaceURI) throws XMLStreamException {
338:
339:                closeStartTag();
340:                elemBuffer.reset();
341:                UnsyncByteArrayOutputStream buffWriter = null;
342:                try {
343:                    if (prefix != null && prefix.length() > 0) {
344:                        buffWriter = elementNames[_depth].getUtf8Data();
345:                        writeStringToUtf8(prefix, buffWriter);
346:                        writeStringToUtf8(":", buffWriter);
347:                        writeStringToUtf8(localName, buffWriter);
348:                        _elementPrefix = prefix;
349:                    } else {
350:                        buffWriter = elementNames[_depth].getUtf8Data();
351:                        writeStringToUtf8(localName, buffWriter);
352:
353:                    }
354:                } catch (Exception ex) {
355:                    throw new RuntimeException(ex);
356:                }
357:
358:                //byte [] data = elemBuffer.toByteArray();
359:                //byte [] data = elemBuffer.getBytes();
360:                _ncContextState[_depth] = false;
361:
362:                _depth++;
363:                resizeElementStack();
364:                try {
365:                    _stream.write('<');
366:
367:                    _stream.write(buffWriter.getBytes(), 0, buffWriter
368:                            .getLength());
369:                    closeStartTag = true;
370:                } catch (IOException ex) {
371:                    throw new RuntimeException(ex);
372:                }
373:            }
374:
375:            protected void closeStartTag() throws XMLStreamException {
376:                try {
377:                    if (closeStartTag) {
378:                        //Iterator itr =  _nsResult.iterator();
379:                        if (_defURI != null) {
380:                            outputAttrToWriter("xmlns", _defURI, _stream);
381:                        }
382:
383:                        //writeAttributesNS(itr);
384:
385:                        if (_nsResult.size() > 0) {
386:                            writeAttributesNS(_nsResult.iterator());
387:                        }
388:
389:                        if (_attrResult.size() > 0) {
390:                            writeAttributes(_attrResult);
391:                        }
392:
393:                        _nsResult.clear();
394:                        _attrResult.clear();
395:                        _stream.write('>');
396:                        closeStartTag = false;
397:                        _defURI = null;
398:                    }
399:                } catch (IOException ex) {
400:                    throw new RuntimeException(ex);
401:                }
402:            }
403:
404:            protected StAXAttr getAttribute() {
405:                if (_attrPos < _attrs.size()) {
406:                    return (StAXAttr) _attrs.get(_attrPos++);
407:                } else {
408:                    for (int i = 0; i < initalCacheSize; i++) {
409:                        _attrs.add(new StAXAttr());
410:                    }
411:                    return (StAXAttr) _attrs.get(_attrPos++);
412:                }
413:            }
414:
415:            protected void resizeElementStack() {
416:                if (_depth >= elementNames.length) {
417:                    ElementName[] tmp = new ElementName[elementNames.length + 10];
418:                    System.arraycopy(elementNames, 0, tmp, 0,
419:                            elementNames.length);
420:                    elementNames = tmp;
421:                    for (int i = 10; i < elementNames.length; i++) {
422:                        elementNames[i] = new ElementName();
423:                    }
424:                }
425:            }
426:
427:            protected void writeAttributes(List itr) throws IOException {
428:                ///while(itr.hasNext()){
429:                int size = itr.size();
430:                for (int i = 0; i < size; i++) {
431:                    StAXAttr attr = (StAXAttr) itr.get(i);
432:                    String prefix = attr.getPrefix();
433:                    if (prefix != null && prefix.length() != 0) {
434:                        ///    attrName.setLength(0);
435:                        ///    attrName.append(prefix);
436:                        ///    attrName.append(":");
437:                        ///    attrName.append(attr.getLocalName());
438:                        ///    prefix = attrName.toString();
439:                        outputAttrToWriter(prefix, attr.getLocalName(), attr
440:                                .getValue(), _stream);
441:                    } else {
442:                        prefix = attr.getLocalName();
443:                        outputAttrToWriter(prefix, attr.getValue(), _stream);
444:                    }
445:
446:                    //outputAttrToWriter(prefix,attr.getValue(),_stream);
447:                }
448:            }
449:
450:        }
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