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1 package org.mr.core.util.xml.sax;
2
3 import org.xml.sax.*;
4 import org.xml.sax.ext.DeclHandler  ;
5 import org.xml.sax.ext.LexicalHandler ;
6
7 import java.io.IOException ;
8 import java.io.Serializable ;
9
10
55
56
63 public class FilterContentHandler
64 implements ContentHandler, EntityResolver, DTDHandler, ErrorHandler, LexicalHandler , DeclHandler , Serializable {
65
66 private static final SinkContentHandler SINK_HANDLER = new SinkContentHandler();
67
68 private final ContentHandler m_handler;
69 private final DTDHandler m_dtdHandler;
70 private final ErrorHandler m_errorHandler;
71 private final EntityResolver m_entityResolver;
72 private final LexicalHandler m_lexicalHandler;
73 private final DeclHandler m_declHandler;
74
75
81 public static ContentHandler ensureFullHandler(ContentHandler i_handler) {
82 if (i_handler instanceof DTDHandler && i_handler instanceof ErrorHandler &&
83 i_handler instanceof EntityResolver && i_handler instanceof LexicalHandler &&
84 i_handler instanceof DeclHandler ) {
85 return i_handler;
86 }
87 return new FilterContentHandler(i_handler);
88 }
89
90 public ContentHandler getContentHandler() {
91 return m_handler;
92 }
93
94 public FilterContentHandler(ContentHandler i_handler) {
95 m_handler = i_handler;
96 m_dtdHandler = (i_handler instanceof DTDHandler)? (DTDHandler)i_handler : SINK_HANDLER;
97 m_errorHandler = (i_handler instanceof ErrorHandler)? (ErrorHandler)i_handler : SINK_HANDLER;
98 m_entityResolver = (i_handler instanceof EntityResolver)? (EntityResolver)i_handler : SINK_HANDLER;
99 m_lexicalHandler = (i_handler instanceof LexicalHandler )? (LexicalHandler )i_handler : SINK_HANDLER;
100 m_declHandler = (i_handler instanceof DeclHandler )? (DeclHandler )i_handler : SINK_HANDLER;
101 }
102
103 public void setDocumentLocator(Locator i_locator) {
104 m_handler.setDocumentLocator(i_locator);
105 }
106
107 public void startDocument() throws SAXException {
108 m_handler.startDocument();
109 }
110
111 public void endDocument() throws SAXException {
112 m_handler.endDocument();
113 }
114
115 public void startPrefixMapping(String i_prefix, String i_uri) throws SAXException {
116 m_handler.startPrefixMapping(i_prefix, i_uri);
117 }
118
119 public void endPrefixMapping(String i_prefix) throws SAXException {
120 m_handler.endPrefixMapping(i_prefix);
121 }
122
123 public void startElement(String i_namespaceURI, String i_localName, String i_qName, Attributes i_atts) throws SAXException {
124 m_handler.startElement(i_namespaceURI, i_localName, i_qName, i_atts);
125 }
126
127 public void endElement(String i_namespaceURI, String i_localName, String i_qName) throws SAXException {
128 m_handler.endElement(i_namespaceURI, i_localName, i_qName);
129 }
130
131 public void ignorableWhitespace(char[] i_chars, int i_start, int i_length) throws SAXException {
132 m_handler.ignorableWhitespace(i_chars, i_start, i_length);
133 }
134
135 public void processingInstruction(String i_target, String i_data) throws SAXException {
136 m_handler.processingInstruction(i_target, i_data);
137 }
138
139 public void skippedEntity(String i_name) throws SAXException {
140 m_handler.skippedEntity(i_name);
141 }
142
143 public void characters(char[] i_chars, int i_start, int i_length) throws SAXException {
144 m_handler.characters(i_chars, i_start, i_length);
145 }
146
147 public void notationDecl(String s, String s1, String s2) throws SAXException {
148 m_dtdHandler.notationDecl(s, s1, s2);
149 }
150
151 public void unparsedEntityDecl(String s, String s1, String s2, String s3) throws SAXException {
152 m_dtdHandler.unparsedEntityDecl(s, s1, s2, s3);
153 }
154
155 public void warning(SAXParseException e) throws SAXException {
156 m_errorHandler.warning(e);
157 }
158
159 public void error(SAXParseException e) throws SAXException {
160 m_errorHandler.error(e);
161 }
162
163 public void fatalError(SAXParseException e) throws SAXException {
164 m_errorHandler.fatalError(e);
165 }
166
167 public InputSource resolveEntity(String s, String s1) throws SAXException, IOException {
168 return m_entityResolver.resolveEntity(s, s1);
169 }
170
171 public void startDTD(String s, String s1, String s2) throws SAXException {
172 m_lexicalHandler.startDTD(s, s1, s2);
173 }
174
175 public void endDTD() throws SAXException {
176 m_lexicalHandler.endDTD();
177 }
178
179 public void startEntity(String s) throws SAXException {
180 m_lexicalHandler.startEntity(s);
181 }
182
183 public void endEntity(String s) throws SAXException {
184 m_lexicalHandler.endEntity(s);
185 }
186
187 public void startCDATA() throws SAXException {
188 m_lexicalHandler.startCDATA();
189 }
190
191 public void endCDATA() throws SAXException {
192 m_lexicalHandler.endCDATA();
193 }
194
195 public void comment(char[] i_chars, int i, int i1) throws SAXException {
196 m_lexicalHandler.comment(i_chars, i, i1);
197 }
198
199 public void elementDecl(String s, String s1) throws SAXException {
200 m_declHandler.elementDecl(s, s1);
201 }
202
203 public void attributeDecl(String s, String s1, String s2, String s3, String s4) throws SAXException {
204 m_declHandler.attributeDecl(s, s1, s2, s3, s4);
205 }
206
207 public void internalEntityDecl(String s, String s1) throws SAXException {
208 m_declHandler.internalEntityDecl(s, s1);
209 }
210
211 public void externalEntityDecl(String s, String s1, String s2) throws SAXException {
212 m_declHandler.externalEntityDecl(s, s1, s2);
213 }
214 }
215 |
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