Source Code Cross Referenced for StAXEXC14nCanonicalizerImpl.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:         * StAXEC14nCanonicalizerImpl.java
025:         *
026:         * Created on August 22, 2005, 7:14 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.HashSet;
038:        import java.util.Iterator;
039:        import java.util.List;
040:        import javax.xml.namespace.NamespaceContext;
041:        import javax.xml.stream.XMLStreamException;
042:        import static javax.xml.stream.XMLStreamConstants.*;
043:
044:        /**
045:         *
046:         * @author K.Venugopal@sun.com
047:         */
048:        public class StAXEXC14nCanonicalizerImpl extends
049:                StAXC14nCanonicalizerImpl {
050:
051:            private List inclusivePrefixList = null;
052:            private HashSet visiblyUtilized = new HashSet();
053:
054:            private UnsyncByteArrayOutputStream tmpBuffer = null;
055:
056:            NamespaceContextImpl exC14NContext = new NamespaceContextImpl();
057:
058:            /** Creates a new instance of StAXEC14nCanonicalizerImpl */
059:            public StAXEXC14nCanonicalizerImpl() {
060:                super ();
061:                tmpBuffer = new UnsyncByteArrayOutputStream();
062:
063:            }
064:
065:            public void reset() {
066:                super .reset();
067:                exC14NContext.reset();
068:
069:            }
070:
071:            public void setInclusivePrefixList(List values) {
072:                this .inclusivePrefixList = values;
073:            }
074:
075:            public void writeNamespace(String prefix, String namespaceURI)
076:                    throws XMLStreamException {
077:                if (prefix == null || prefix.length() == 0) {
078:                    String defNS = exC14NContext.getNamespaceURI(prefix);
079:                    if ((defNS == null || defNS.length() == 0)
080:                            && (namespaceURI == null || namespaceURI.length() == 0)) {
081:                        return;
082:                    }
083:                    if (namespaceURI == null) {
084:                        namespaceURI = "";
085:                    }
086:                    _defURI = namespaceURI;
087:                    prefix = "";
088:                }
089:                exC14NContext.declareNamespace(prefix, namespaceURI);
090:            }
091:
092:            public void writeStartElement(String prefix, String localName,
093:                    String namespaceURI) throws XMLStreamException {
094:                String pf = prefix;
095:                if (prefix == null) {
096:                    pf = "";
097:                }
098:                super .writeStartElement(pf, localName, namespaceURI);
099:                _elementPrefix = pf;
100:                exC14NContext.push();
101:
102:            }
103:
104:            protected void closeStartTag() throws XMLStreamException {
105:                try {
106:                    if (closeStartTag) {
107:                        if (_attrResult.size() > 0) {
108:                            collectVisiblePrefixes(_attrResult.iterator());
109:                        }
110:                        if (_elementPrefix != null)
111:                            visiblyUtilized.add(_elementPrefix);
112:                        AttributeNS nsDecl = null;
113:                        if (_elementPrefix != null
114:                                && _elementPrefix.length() > 0) {
115:                            AttributeNS eDecl = exC14NContext
116:                                    .getNamespaceDeclaration(_elementPrefix);
117:
118:                            if (eDecl != null && !eDecl.isWritten()) {
119:                                eDecl.setWritten(true);
120:                                _nsResult.add(eDecl);
121:                            }
122:
123:                        }
124:                        if (visiblyUtilized.size() > 0) {
125:                            Iterator prefixItr = visiblyUtilized.iterator();
126:                            populateNamespaceDecl(prefixItr);
127:                        }
128:                        if (inclusivePrefixList != null) {
129:                            populateNamespaceDecl(inclusivePrefixList
130:                                    .iterator());
131:                        }
132:
133:                        if (_nsResult.size() > 0) {
134:                            BaseCanonicalizer.sort(_nsResult);
135:                            writeAttributesNS(_nsResult);
136:                        }
137:
138:                        if (_attrResult.size() > 0) {
139:                            BaseCanonicalizer.sort(_attrResult);
140:                            writeAttributes(_attrResult);
141:                        }
142:                        visiblyUtilized.clear();
143:                        _nsResult.clear();
144:                        _attrResult.clear();
145:                        _stream.write('>');
146:                        closeStartTag = false;
147:                        _elementPrefix = null;
148:                        _defURI = null;
149:                    }
150:                } catch (IOException ex) {
151:                    throw new RuntimeException(ex);
152:                }
153:            }
154:
155:            public void writeEmptyElement(String namespaceURI, String localName)
156:                    throws XMLStreamException {
157:                /* String prefix = nsContext.getPrefix (namespaceURI);
158:                 writeEmptyElement (prefix,localName,namespaceURI);*/
159:                //TODO
160:                throw new UnsupportedOperationException();
161:            }
162:
163:            public void writeEmptyElement(String prefix, String localName,
164:                    String namespaceURI) throws XMLStreamException {
165:
166:                closeStartTag();
167:                exC14NContext.push();
168:
169:                try {
170:                    _stream.write('<');
171:                    elemBuffer.reset();
172:                    if (prefix.length() == 0) {
173:                        writeStringToUtf8(localName, elemBuffer);
174:                    } else {
175:                        writeStringToUtf8(prefix, elemBuffer);
176:                        writeStringToUtf8(":", elemBuffer);
177:                        writeStringToUtf8(localName, elemBuffer);
178:
179:                    }
180:                    byte[] endElem = elemBuffer.getBytes();
181:                    int len = elemBuffer.getLength();
182:                    visiblyUtilized.add(prefix);
183:                    AttributeNS nsDecl = null;
184:                    _stream.write(endElem, 0, len);
185:
186:                    if (visiblyUtilized.size() > 0) {
187:                        Iterator prefixItr = visiblyUtilized.iterator();
188:                        populateNamespaceDecl(prefixItr);
189:                    }
190:                    if (inclusivePrefixList != null) {
191:                        populateNamespaceDecl(inclusivePrefixList.iterator());
192:                    }
193:
194:                    if (_nsResult.size() > 0) {
195:                        BaseCanonicalizer.sort(_nsResult);
196:                        writeAttributesNS(_nsResult);
197:                    }
198:
199:                    if (_attrResult.size() > 0) {
200:                        BaseCanonicalizer.sort(_attrResult);
201:                        writeAttributes(_attrResult);
202:                    }
203:
204:                    visiblyUtilized.clear();
205:                    _nsResult.clear();
206:                    _attrResult.clear();
207:                    // _stream .write('>');
208:                    closeStartTag = false;
209:                    _elementPrefix = "";
210:                    _defURI = null;
211:
212:                    _stream.write('>');
213:                    _stream.write(_END_TAG);
214:                    //writeStringToUtf8(name,_stream);
215:                    _stream.write(endElem, 0, len);
216:                    _stream.write('>');
217:                    exC14NContext.pop();
218:                } catch (IOException ex) {
219:                    throw new RuntimeException(ex);
220:                }
221:            }
222:
223:            public void writeEndDocument() throws XMLStreamException {
224:                while (_depth > 0) {
225:                    writeEndElement();
226:                }
227:            }
228:
229:            public void writeEndElement() throws XMLStreamException {
230:                closeStartTag();
231:                if (_depth == 0) {
232:                    return;
233:                }
234:                ElementName qname = elementNames[--_depth];
235:
236:                exC14NContext.pop();
237:
238:                try {
239:                    _stream.write(_END_TAG);
240:                    //writeStringToUtf8(qname,_stream);
241:                    _stream.write(qname.getUtf8Data().getBytes(), 0, qname
242:                            .getUtf8Data().getLength());
243:                    qname.getUtf8Data().reset();
244:                    _stream.write('>');
245:                } catch (IOException ex) {
246:                    throw new RuntimeException(ex);
247:                }
248:            }
249:
250:            protected void collectVisiblePrefixes(Iterator itr)
251:                    throws IOException {
252:                while (itr.hasNext()) {
253:                    StAXAttr attr = (StAXAttr) itr.next();
254:                    String prefix = attr.getPrefix();
255:                    if (prefix.length() > 0) {
256:                        visiblyUtilized.add(prefix);
257:                    }
258:                }
259:            }
260:
261:            private void populateNamespaceDecl(Iterator prefixItr) {
262:                AttributeNS nsDecl = null;
263:                while (prefixItr.hasNext()) {
264:                    String prefix = (String) prefixItr.next();
265:                    nsDecl = exC14NContext.getNamespaceDeclaration(prefix);
266:
267:                    if (nsDecl != null && !nsDecl.isWritten()) {
268:                        nsDecl.setWritten(true);
269:                        _nsResult.add(nsDecl);
270:                    }
271:                }
272:            }
273:
274:            protected void writeAttributesNS(List itr) throws IOException {
275:
276:                AttributeNS attr = null;
277:                int size = itr.size();
278:                for (int i = 0; i < size; i++) {
279:                    attr = (AttributeNS) itr.get(i);
280:                    tmpBuffer.reset();
281:                    _stream.write(attr.getUTF8Data(tmpBuffer));
282:                }
283:
284:            }
285:
286:            public NamespaceContext getNamespaceContext() {
287:                return exC14NContext;
288:            }
289:        }
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