/* | |
* Copyright 2004,2005 The Apache Software Foundation. | |
* | |
* Licensed under the Apache License, Version 2.0 (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 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package org.apache.axiom.om.impl.serialize; | |
import org.apache.commons.logging.Log; | |
import org.apache.commons.logging.LogFactory; | |
import org.xml.sax.Attributes; | |
import org.xml.sax.ContentHandler; | |
import org.xml.sax.Locator; | |
import org.xml.sax.SAXException; | |
import javax.xml.stream.XMLStreamException; | |
import javax.xml.stream.XMLStreamWriter; | |
/** | |
* Class StreamWriterToContentHandlerConverter | |
*/ | |
public class StreamWriterToContentHandlerConverter implements ContentHandler { | |
/** | |
* Field log | |
*/ | |
private Log log = LogFactory.getLog(getClass()); | |
/** | |
* Field writer | |
*/ | |
private XMLStreamWriter writer; | |
/** | |
* Constructor StreamWriterToContentHandlerConverter. | |
* | |
* @param writer | |
*/ | |
public StreamWriterToContentHandlerConverter(XMLStreamWriter writer) { | |
this.writer = writer; | |
} | |
/** | |
* Method endDocument. | |
* | |
* @throws SAXException | |
*/ | |
public void endDocument() throws SAXException { | |
// do nothing | |
} | |
/** | |
* Method startDocument. | |
* | |
* @throws SAXException | |
*/ | |
public void startDocument() throws SAXException { | |
// | |
} | |
/** | |
* Method characters. | |
* | |
* @param ch | |
* @param start | |
* @param length | |
* @throws SAXException | |
*/ | |
public void characters(char ch[], int start, int length) | |
throws SAXException { | |
try { | |
writer.writeCharacters(ch, start, length); | |
} catch (XMLStreamException e) { | |
throw new SAXException(e); | |
} | |
} | |
/** | |
* Method ignorableWhitespace. | |
* | |
* @param ch | |
* @param start | |
* @param length | |
* @throws SAXException | |
*/ | |
public void ignorableWhitespace(char ch[], int start, int length) | |
throws SAXException { | |
// throw new UnsupportedOperationException(); | |
} | |
/** | |
* Method endPrefixMapping. | |
* | |
* @param prefix | |
* @throws SAXException | |
*/ | |
public void endPrefixMapping(String prefix) throws SAXException { | |
// throw new UnsupportedOperationException(); | |
} | |
/** | |
* Method skippedEntity. | |
* | |
* @param name | |
* @throws SAXException | |
*/ | |
public void skippedEntity(String name) throws SAXException { | |
// throw new UnsupportedOperationException(); | |
} | |
/** | |
* Method setDocumentLocator. | |
* | |
* @param locator | |
*/ | |
public void setDocumentLocator(Locator locator) { | |
// throw new UnsupportedOperationException(); | |
} | |
/** | |
* Method processingInstruction. | |
* | |
* @param target | |
* @param data | |
* @throws SAXException | |
*/ | |
public void processingInstruction(String target, String data) | |
throws SAXException { | |
// throw new UnsupportedOperationException(); | |
} | |
/** | |
* Method startPrefixMapping. | |
* | |
* @param prefix | |
* @param uri | |
* @throws SAXException | |
*/ | |
public void startPrefixMapping(String prefix, String uri) | |
throws SAXException { | |
try { | |
writer.writeNamespace(prefix, uri); | |
writer.setPrefix(prefix, uri); | |
} catch (XMLStreamException e) { | |
throw new SAXException(e); | |
} | |
} | |
/** | |
* Method endElement. | |
* | |
* @param namespaceURI | |
* @param localName | |
* @param qName | |
* @throws SAXException | |
*/ | |
public void endElement(String namespaceURI, | |
String localName, | |
String qName) | |
throws SAXException { | |
try { | |
writer.writeEndElement(); | |
} catch (XMLStreamException e) { | |
throw new SAXException(e); | |
} | |
} | |
/** | |
* Method getPrefix. | |
* | |
* @param qName | |
* @return Returns String. | |
*/ | |
private String getPrefix(String qName) { | |
if (qName != null) { | |
return qName.substring(0, qName.indexOf(":")); | |
} | |
return null; | |
} | |
/** | |
* Method startElement. | |
* | |
* @param namespaceURI | |
* @param localName | |
* @param qName | |
* @param atts | |
* @throws SAXException | |
*/ | |
public void startElement(String namespaceURI, | |
String localName, | |
String qName, | |
Attributes atts) | |
throws SAXException { | |
try { | |
log.info("writing element {" + namespaceURI + '}' + localName | |
+ " directly to stream "); | |
String prefix = getPrefix(qName); | |
// it is only the prefix we want to learn from the QName! so we can get rid of the | |
// spliting QName | |
if (prefix == null) { | |
writer.writeStartElement(namespaceURI, localName); | |
} else { | |
writer.writeStartElement(prefix, localName, namespaceURI); | |
} | |
if (atts != null) { | |
int attCount = atts.getLength(); | |
for (int i = 0; i < attCount; i++) { | |
writer.writeAttribute(atts.getURI(i), localName, | |
atts.getValue(i)); | |
} | |
} | |
} catch (XMLStreamException e) { | |
throw new SAXException(e); | |
} | |
} | |
} |