com.sun.xml.fastinfoset.tools.StAX2SAXReader Maven / Gradle / Ivy
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* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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package com.sun.xml.fastinfoset.tools;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
import org.xml.sax.ext.LexicalHandler;
import org.xml.sax.helpers.AttributesImpl;
import com.sun.xml.fastinfoset.CommonResourceBundle;
public class StAX2SAXReader {
/**
* Content handler where events are pushed.
*/
ContentHandler _handler;
/**
* Lexical handler to report lexical events.
*/
LexicalHandler _lexicalHandler;
/**
* XML stream reader where events are pulled.
*/
XMLStreamReader _reader;
public StAX2SAXReader(XMLStreamReader reader, ContentHandler handler) {
_handler = handler;
_reader = reader;
}
public StAX2SAXReader(XMLStreamReader reader) {
_reader = reader;
}
public void setContentHandler(ContentHandler handler) {
_handler = handler;
}
public void setLexicalHandler(LexicalHandler lexicalHandler) {
_lexicalHandler = lexicalHandler;
}
public void adapt() throws XMLStreamException, SAXException {
QName qname;
String prefix, localPart;
AttributesImpl attrs = new AttributesImpl();
char[] buffer;
int nsc;
int nat;
_handler.startDocument();
try {
while (_reader.hasNext()) {
int event = _reader.next();
switch(event) {
case XMLStreamConstants.START_ELEMENT: {
// Report namespace events first
nsc = _reader.getNamespaceCount();
for (int i = 0; i < nsc; i++) {
_handler.startPrefixMapping(_reader.getNamespacePrefix(i),
_reader.getNamespaceURI(i));
}
// Collect list of attributes
attrs.clear();
nat = _reader.getAttributeCount();
for (int i = 0; i < nat; i++) {
QName q = _reader.getAttributeName(i);
String qName = _reader.getAttributePrefix(i);
if (qName == null || qName == "") {
qName = q.getLocalPart();
} else {
qName = qName + ":" + q.getLocalPart();
}
attrs.addAttribute(_reader.getAttributeNamespace(i),
q.getLocalPart(),
qName,
_reader.getAttributeType(i),
_reader.getAttributeValue(i));
}
// Report start element
qname = _reader.getName();
prefix = qname.getPrefix();
localPart = qname.getLocalPart();
_handler.startElement(_reader.getNamespaceURI(),
localPart,
(prefix.length() > 0) ?
(prefix + ":" + localPart) : localPart,
attrs);
break;
}
case XMLStreamConstants.END_ELEMENT: {
// Report end element
qname = _reader.getName();
prefix = qname.getPrefix();
localPart = qname.getLocalPart();
_handler.endElement(_reader.getNamespaceURI(),
localPart,
(prefix.length() > 0) ?
(prefix + ":" + localPart) : localPart);
// Report end namespace events
nsc = _reader.getNamespaceCount();
for (int i = 0; i < nsc; i++) {
_handler.endPrefixMapping(_reader.getNamespacePrefix(i));
}
break;
}
case XMLStreamConstants.CHARACTERS:
_handler.characters(_reader.getTextCharacters(), _reader.getTextStart(), _reader.getTextLength());
break;
case XMLStreamConstants.COMMENT:
_lexicalHandler.comment(_reader.getTextCharacters(), _reader.getTextStart(), _reader.getTextLength());
break;
case XMLStreamConstants.PROCESSING_INSTRUCTION:
_handler.processingInstruction(_reader.getPITarget(), _reader.getPIData());
break;
case XMLStreamConstants.END_DOCUMENT:
break;
default:
throw new RuntimeException(CommonResourceBundle.getInstance().getString("message.StAX2SAXReader", new Object[]{Integer.valueOf(event)}));
} // switch
}
}
catch (XMLStreamException e) {
_handler.endDocument(); // flush whatever we have
throw e;
}
_handler.endDocument();
}
}