mirceatoma 2002/10/15 16:10:57
Added: xmlutil/src/java/org/apache/excalibur/xml/sax
DocumentHandlerAdapter.java
Log:
Adapter for deprecated DocumentHandler.
Revision Changes Path
1.1
jakarta-avalon-excalibur/xmlutil/src/java/org/apache/excalibur/xml/sax/DocumentHandlerAdapter.java
Index: DocumentHandlerAdapter.java
===================================================================
/*
* Copyright (C) The Apache Software Foundation. All rights reserved.
*
* This software is published under the terms of the Apache Software License
* version 1.1, a copy of which has been included with this distribution in
* the LICENSE.txt file.
*/
package org.apache.excalibur.xml.sax;
import java.util.Enumeration;
import org.xml.sax.AttributeList;
import org.xml.sax.ContentHandler;
import org.xml.sax.DocumentHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributesImpl;
import org.xml.sax.helpers.NamespaceSupport;
/**
* This class is an utility class "wrapping" around a SAX version 2.0
* {@link ContentHandler} and forwarding the events to it.
* <br>
*
* @author <a href="mailto:[EMAIL PROTECTED]";>Mircea Toma</a>
* @version CVS $Revision: 1.1 $ $Date: 2002/10/15 23:10:57 $
*/
public class DocumentHandlerAdapter implements DocumentHandler {
private final static String XMLNS = "xmlns";
private final static String XMLNS_PREFIX = "xmlns:";
private final ContentHandler m_handler;
private final NamespaceSupport m_support = new NamespaceSupport();
public DocumentHandlerAdapter(ContentHandler handler) {
m_handler = handler;
}
public void setDocumentLocator(Locator locator) {
m_handler.setDocumentLocator(locator);
}
public void startDocument() throws SAXException {
m_handler.startDocument();
}
public void endDocument() throws SAXException {
m_handler.endDocument();
}
public void characters(char ch[], int start, int length) throws SAXException {
m_handler.characters(ch, start, length);
}
public void ignorableWhitespace(char ch[], int start, int length) throws
SAXException {
m_handler.ignorableWhitespace(ch, start, length);
}
public void processingInstruction(String target, String data) throws
SAXException {
m_handler.processingInstruction(target, data);
}
public void startElement(String name, AttributeList atts) throws SAXException {
m_support.pushContext();
for (int i = 0; i < atts.getLength(); i++)
{
final String attributeName = atts.getName(i);
if (attributeName.startsWith(XMLNS_PREFIX))
{
m_support.declarePrefix(attributeName.substring(6),
atts.getValue(i));
}
else if (attributeName.equals(XMLNS))
{
m_support.declarePrefix("", atts.getValue(i));
}
}
final AttributesImpl attributes = new AttributesImpl();
for (int i = 0; i < atts.getLength(); i++)
{
final String attributeName = atts.getName(i);
if (!attributeName.startsWith(XMLNS_PREFIX) &&
!attributeName.equals(XMLNS))
{
final String[] parts = m_support.processName(name, new
String[3], true);
attributes.addAttribute(parts[0], parts[1], parts[2],
atts.getType(i), atts.getValue(i));
}
}
final Enumeration e = m_support.getDeclaredPrefixes();
while(e.hasMoreElements())
{
final String prefix = (String)e.nextElement();
m_handler.startPrefixMapping(prefix, m_support.getURI(prefix));
}
final String[] parts = m_support.processName(name, new String[3], false);
m_handler.startElement(parts[0], parts[1], parts[2], attributes);
}
public void endElement(String name) throws SAXException {
final String[] parts = m_support.processName(name, new String[3], false);
m_handler.endElement(parts[0], parts[1], parts[2]);
final Enumeration e = m_support.getDeclaredPrefixes();
while(e.hasMoreElements()) {
final String prefix = (String)e.nextElement();
m_handler.endPrefixMapping(prefix);
}
m_support.popContext();
}
}
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