package net.sf.saxon;
import net.sf.saxon.event.PipelineConfiguration;
import net.sf.saxon.event.ReceivingContentHandler;
import net.sf.saxon.event.SerializerFactory;
import net.sf.saxon.trans.XPathException;
import org.xml.sax.SAXException;
import javax.xml.transform.Result;
import javax.xml.transform.Transformer;
import javax.xml.transform.sax.TransformerHandler;
import javax.xml.transform.stream.StreamResult;
import java.util.Properties;
/**
* <b>IdentityTransformerHandler</b> implements the javax.xml.transform.sax.TransformerHandler
* interface. It acts as a ContentHandler and LexicalHandler which receives a stream of
* SAX events representing an input document, and performs an identity transformation passing
* these events to a Result
* @author Michael H. Kay
*/
public class IdentityTransformerHandler extends ReceivingContentHandler implements TransformerHandler {
private Result result;
private String systemId;
private Controller controller;
/**
* Create a IdentityTransformerHandler and initialise variables. The constructor is protected, because
* the Filter should be created using newTransformerHandler() in the SAXTransformerFactory
* class
* @param controller the Controller for this transformation
*/
protected IdentityTransformerHandler(Controller controller) {
this.controller = controller;
setPipelineConfiguration(controller.makePipelineConfiguration());
}
/**
* Get the Transformer used for this transformation
*/
public Transformer getTransformer() {
return controller;
}
/**
* Set the SystemId of the document
*/
public void setSystemId(String url) {
systemId = url;
}
/**
* Get the systemId of the document
*/
public String getSystemId() {
return systemId;
}
/**
* Set the output destination of the transformation
*/
public void setResult(Result result) {
if (result==null) {
throw new IllegalArgumentException("Result must not be null");
}
this.result = result;
}
/**
* Get the output destination of the transformation
* @return the output destination
*/
public Result getResult() {
return result;
}
/**
* Override the behaviour of startDocument() in ReceivingContentHandler
*/
public void startDocument() throws SAXException {
if (result==null) {
result = new StreamResult(System.out);
}
try {
Properties props = controller.getOutputProperties();
PipelineConfiguration pipe = controller.makePipelineConfiguration();
SerializerFactory sf = getConfiguration().getSerializerFactory();
setReceiver(sf.getReceiver(result, pipe, props));
setPipelineConfiguration(pipe);
} catch (XPathException err) {
throw new SAXException(err);
}
super.startDocument();
}
}
//
// The contents of this file are subject to the Mozilla Public License Version 1.0 (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.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations under the License.
//
// The Original Code is: all this file.
//
// The Initial Developer of the Original Code is Michael H. Kay.
//
// Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
//
// Contributor(s): None
//