001 /*
002 * Copyright (c) 2006 Henri Sivonen
003 *
004 * Permission is hereby granted, free of charge, to any person obtaining a
005 * copy of this software and associated documentation files (the "Software"),
006 * to deal in the Software without restriction, including without limitation
007 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
008 * and/or sell copies of the Software, and to permit persons to whom the
009 * Software is furnished to do so, subject to the following conditions:
010 *
011 * The above copyright notice and this permission notice shall be included in
012 * all copies or substantial portions of the Software.
013 *
014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
015 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
016 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
017 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
018 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
019 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
020 * DEALINGS IN THE SOFTWARE.
021 */
022
023 package fi.iki.hsivonen.verifierservlet;
024
025 import java.util.Iterator;
026 import java.util.LinkedList;
027 import java.util.List;
028
029 import org.xml.sax.Attributes;
030 import org.xml.sax.ContentHandler;
031 import org.xml.sax.Locator;
032 import org.xml.sax.SAXException;
033
034 public class BufferingRootNamespaceSniffer implements ContentHandler {
035
036 private ContentHandler ch = null;
037
038 private Locator locator = null;
039
040 private List namespaces = new LinkedList();
041
042 private VerifierServletTransaction vst;
043
044 public BufferingRootNamespaceSniffer(VerifierServletTransaction vst) {
045 super();
046 this.vst = vst;
047 }
048
049 public void setContentHandler(ContentHandler contentHandler) throws SAXException {
050 this.ch = contentHandler;
051 ch.startDocument();
052 if (locator != null) {
053 ch.setDocumentLocator(locator);
054 }
055 for (Iterator iter = namespaces.iterator(); iter.hasNext();) {
056 String[] element = (String[]) iter.next();
057 ch.startPrefixMapping(element[0], element[1]);
058 }
059 }
060
061 /**
062 * @see org.xml.sax.ContentHandler#characters(char[], int, int)
063 */
064 public void characters(char[] arg0, int arg1, int arg2) throws SAXException {
065 if (ch != null) {
066 ch.characters(arg0, arg1, arg2);
067 }
068 }
069
070 /**
071 * @see org.xml.sax.ContentHandler#endDocument()
072 */
073 public void endDocument() throws SAXException {
074 if (ch != null) {
075 ch.endDocument();
076 }
077 }
078
079 /**
080 * @see org.xml.sax.ContentHandler#endElement(java.lang.String,
081 * java.lang.String, java.lang.String)
082 */
083 public void endElement(String arg0, String arg1, String arg2)
084 throws SAXException {
085 if (ch != null) {
086 ch.endElement(arg0, arg1, arg2);
087 }
088 }
089
090 /**
091 * @see org.xml.sax.ContentHandler#endPrefixMapping(java.lang.String)
092 */
093 public void endPrefixMapping(String arg0) throws SAXException {
094 if (ch != null) {
095 ch.endPrefixMapping(arg0);
096 }
097 }
098
099 /**
100 * @see org.xml.sax.ContentHandler#ignorableWhitespace(char[], int, int)
101 */
102 public void ignorableWhitespace(char[] arg0, int arg1, int arg2)
103 throws SAXException {
104 if (ch != null) {
105 ch.ignorableWhitespace(arg0, arg1, arg2);
106 }
107 }
108
109 /**
110 * @see org.xml.sax.ContentHandler#processingInstruction(java.lang.String,
111 * java.lang.String)
112 */
113 public void processingInstruction(String arg0, String arg1)
114 throws SAXException {
115 if (ch != null) {
116 ch.processingInstruction(arg0, arg1);
117 }
118 }
119
120 /**
121 * @see org.xml.sax.ContentHandler#setDocumentLocator(org.xml.sax.Locator)
122 */
123 public void setDocumentLocator(Locator arg0) {
124 locator = arg0;
125 }
126
127 /**
128 * @see org.xml.sax.ContentHandler#skippedEntity(java.lang.String)
129 */
130 public void skippedEntity(String arg0) throws SAXException {
131 if (ch != null) {
132 ch.skippedEntity(arg0);
133 }
134 }
135
136 /**
137 * @see org.xml.sax.ContentHandler#startDocument()
138 */
139 public void startDocument() throws SAXException {
140
141 }
142
143 /**
144 * @see org.xml.sax.ContentHandler#startElement(java.lang.String,
145 * java.lang.String, java.lang.String, org.xml.sax.Attributes)
146 */
147 public void startElement(String arg0, String arg1, String arg2,
148 Attributes arg3) throws SAXException {
149 if (ch != null) {
150 ch.startElement(arg0, arg1, arg2, arg3);
151 } else {
152 vst.rootNamespace(arg0, locator);
153 ch.startElement(arg0, arg1, arg2, arg3);
154 }
155 }
156
157 /**
158 * @see org.xml.sax.ContentHandler#startPrefixMapping(java.lang.String,
159 * java.lang.String)
160 */
161 public void startPrefixMapping(String arg0, String arg1)
162 throws SAXException {
163 if (ch != null) {
164 ch.startPrefixMapping(arg0, arg1);
165 } else {
166 String[] arr = new String[2];
167 arr[0] = arg0;
168 arr[1] = arg1;
169 namespaces.add(arr);
170 }
171 }
172
173 }