Revision 17
Added by Matt Jones about 24 years ago
DBSAXWriter.java | ||
---|---|---|
81 | 81 |
|
82 | 82 |
// Use the XMLDocumentHandler interface for namespace support |
83 | 83 |
// instead of org.xml.sax.DocumentHandler |
84 |
XMLDocumentHandler xmlDocHandler = new XMLDocumentHandlerImpl(conn);
|
|
84 |
XMLDocumentHandler xmlDocHandler = new DBSAXHandler(conn);
|
|
85 | 85 |
|
86 | 86 |
// For all the other interface use the default provided by |
87 | 87 |
// Handler base |
... | ... | |
149 | 149 |
} |
150 | 150 |
|
151 | 151 |
} |
152 |
|
|
153 |
/**************************************************************** |
|
154 |
* Implementation of XMLDocumentHandler interface. * |
|
155 |
* Other interfaces are implemented in the class HandlerBase. * |
|
156 |
****************************************************************/ |
|
157 |
|
|
158 |
class XMLDocumentHandlerImpl extends DefaultXMLDocumentHandler |
|
159 |
{ |
|
160 |
|
|
161 |
private boolean debug = false; |
|
162 |
private boolean stackCreated = false; |
|
163 |
private Stack elementStack; |
|
164 |
private Connection conn = null; |
|
165 |
|
|
166 |
public XMLDocumentHandlerImpl(Connection conn) |
|
167 |
{ |
|
168 |
System.out.println("\nINITIALIZING HANDLER....\n"); |
|
169 |
|
|
170 |
this.conn = conn; |
|
171 |
|
|
172 |
// Create the stack for keeping track of element context |
|
173 |
// if it doesn't already exist |
|
174 |
if (!stackCreated) { |
|
175 |
elementStack = new Stack(); |
|
176 |
stackCreated = true; |
|
177 |
} |
|
178 |
|
|
179 |
} |
|
180 |
|
|
181 |
public void startElement(NSName name, SAXAttrList atts) throws SAXException |
|
182 |
{ |
|
183 |
|
|
184 |
// Use the methods getQualifiedName(), getLocalName(), getNamespace() |
|
185 |
// and getExpandedName() in NSName interface to get Namespace |
|
186 |
// information. |
|
187 |
|
|
188 |
String qName; |
|
189 |
String localName; |
|
190 |
String nsName; |
|
191 |
String expName; |
|
192 |
DBSAXElement currentElement; |
|
193 |
|
|
194 |
qName = name.getQualifiedName(); |
|
195 |
localName = name.getLocalName(); |
|
196 |
nsName = name.getNamespace(); |
|
197 |
expName = name.getExpandedName(); |
|
198 |
|
|
199 |
// Create the current element representation |
|
200 |
currentElement = new DBSAXElement(conn, 1, localName, false, 0); |
|
201 |
System.out.println("Element created:" + currentElement.getTagName()); |
|
202 |
|
|
203 |
// Add all of the attributes |
|
204 |
for (int i=0; i<atts.getLength(); i++) |
|
205 |
{ |
|
206 |
|
|
207 |
// Use the methods getQualifiedName(), getLocalName(), getNamespace() |
|
208 |
// and getExpandedName() in SAXAttrList interface to get Namespace |
|
209 |
// information. |
|
210 |
|
|
211 |
qName = atts.getQualifiedName(i); |
|
212 |
localName = atts.getLocalName(i); |
|
213 |
nsName = atts.getNamespace(i); |
|
214 |
expName = atts.getExpandedName(i); |
|
215 |
|
|
216 |
// You can get the type and value of the attributes either |
|
217 |
// by index or by the Qualified Name. |
|
218 |
|
|
219 |
String type = atts.getType(qName); |
|
220 |
String value = atts.getValue(qName); |
|
221 |
|
|
222 |
currentElement.setAttribute(localName, value); |
|
223 |
|
|
224 |
System.out.println(" Added ATTRIBUTE Name:" + localName); |
|
225 |
System.out.println(" Type:" + type); |
|
226 |
System.out.println(" Value:" + value); |
|
227 |
System.out.println(); |
|
228 |
|
|
229 |
} |
|
230 |
|
|
231 |
// Add the element to the stack, so that any text data can be |
|
232 |
// added as it is encountered |
|
233 |
elementStack.push(currentElement); |
|
234 |
|
|
235 |
} |
|
236 |
|
|
237 |
public void characters(char[] cbuf, int start, int len) |
|
238 |
{ |
|
239 |
DBSAXElement currentElement = (DBSAXElement)elementStack.peek(); |
|
240 |
currentElement.appendContent(cbuf,start,len); |
|
241 |
System.out.println(" Characters: " + new String(cbuf,start,len)); |
|
242 |
System.out.println(" Appended: " + currentElement.getContent()); |
|
243 |
} |
|
244 |
|
|
245 |
public void ignorableWhitespace(char[] cbuf, int start, int len) |
|
246 |
{ |
|
247 |
System.out.println("IgnorableWhiteSpace"); |
|
248 |
} |
|
249 |
|
|
250 |
public void endElement(NSName name) throws SAXException |
|
251 |
{ |
|
252 |
// Use the methods getQualifiedName(), getLocalName(), getNamespace() |
|
253 |
// and getExpandedName() in NSName interface to get Namespace |
|
254 |
// information. |
|
255 |
|
|
256 |
String expName = name.getExpandedName(); |
|
257 |
|
|
258 |
// Remove the element from the stack |
|
259 |
DBSAXElement currentElement = (DBSAXElement)elementStack.pop(); |
|
260 |
|
|
261 |
System.out.println("Final content: " + currentElement.getContent()); |
|
262 |
System.out.println("Closing element: " + expName); |
|
263 |
} |
|
264 |
|
|
265 |
/** Debug routine */ |
|
266 |
private void db(int flag) { |
|
267 |
if (debug) { |
|
268 |
System.err.println("DEBUG POSITION " + flag); |
|
269 |
} |
|
270 |
} |
|
271 |
} |
Also available in: Unified diff
Split XML SAX handler class into seperate file DBSAXHandler.java