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The XSLT and XQuery Processor
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2018-2022 Saxonica Limited
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is "Incompatible With Secondary Licenses", as defined by the Mozilla Public License, v. 2.0.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
package net.sf.saxon.jaxp;
import net.sf.saxon.event.Receiver;
import net.sf.saxon.lib.ResourceResolverWrappingURIResolver;
import net.sf.saxon.lib.SerializerFactory;
import net.sf.saxon.s9api.*;
import net.sf.saxon.serialize.SerializationProperties;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.trans.XsltController;
import org.xml.sax.XMLFilter;
import javax.xml.transform.ErrorListener;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.URIResolver;
import javax.xml.transform.sax.TransformerHandler;
/**
* Saxon implementation of the JAXP Transformer interface.
* Since Saxon 9.6, JAXP interfaces are implemented as a layer above the s9api interface
*/
public class TransformerImpl extends AbstractTransformerImpl {
private final XsltTransformer xsltTransformer;
protected TransformerImpl(XsltExecutable e, XsltTransformer t) {
super(e);
this.xsltTransformer = t;
}
/**
* Transform the XML Source to a Result.
* Specific transformation behavior is determined by the settings of the
* TransformerFactory in effect when the
* Transformer was instantiated and any modifications made to
* the Transformer instance.
* An empty Source is represented as an empty document
* as constructed by {@link javax.xml.parsers.DocumentBuilder#newDocument()}.
* The result of transforming an empty Source depends on
* the transformation behavior; it is not always an empty
* Result.
*
* @param xmlSource The XML input to transform.
* @param outputTarget The Result of transforming the
* xmlSource.
* @throws XPathException
* If an unrecoverable error occurs
* during the course of the transformation.
*/
@Override
public void transform(Source xmlSource, final Result outputTarget) throws XPathException {
try {
xsltTransformer.setSource(xmlSource);
if (outputTarget.getSystemId() != null) { //bug 2214
xsltTransformer.setBaseOutputURI(outputTarget.getSystemId());
}
Destination destination = makeDestination(outputTarget);
if (destination == null) {
SerializerFactory sf = getConfiguration().getSerializerFactory();
Receiver r = sf.getReceiver(outputTarget,
new SerializationProperties(getLocalOutputProperties()),
getConfiguration().makePipelineConfiguration());
transform(xmlSource, r);
return;
}
xsltTransformer.setDestination(destination);
xsltTransformer.transform();
if (destination instanceof Serializer && ((Serializer)destination).isMustCloseAfterUse()) {
destination.close();
}
} catch (SaxonApiException e) {
throw XPathException.makeXPathException(e);
}
}
@Override
protected void setConvertedParameter(QName name, XdmValue value) {
xsltTransformer.setParameter(name, value);
}
/**
* Clear all parameters set with setParameter.
*/
@Override
public void clearParameters() {
super.clearParameters();
xsltTransformer.clearParameters();
}
/**
* Set an object that will be used to resolve URIs used in
* document().
* If the resolver argument is null, the URIResolver value will
* be cleared and the transformer will no longer have a resolver.
*
* @param resolver An object that implements the URIResolver interface,
* or null.
*/
@Override
public void setURIResolver(URIResolver resolver) {
super.setURIResolver(resolver);
if (resolver != null) {
xsltTransformer.setResourceResolver(new ResourceResolverWrappingURIResolver(resolver));
}
}
/**
* Set the error event listener in effect for the transformation.
*
* @param listener The new error listener.
* @throws IllegalArgumentException if listener is null.
*/
@Override
public void setErrorListener(ErrorListener listener) throws IllegalArgumentException {
super.setErrorListener(listener);
xsltTransformer.setErrorListener(listener);
}
/**
* Supply an initial template for a transformation.
* This is a Saxon extension to the JAXP interface, needed for XSLT 2.0
* Changed in 9.9 so it no longer validates the supplied name; an incorrect name will
* lead to an error later.
*
* @param name the name of the initial template, in Clark notation (either a local name,
* or "{uri}local")
*/
public void setInitialTemplate(String name) {
xsltTransformer.setInitialTemplate(QName.fromClarkName(name));
}
/**
* Supply an initial mode for a transformation.
* This is a Saxon extension to the JAXP interface, needed for XSLT 2.0
*
* @param name the name of the initial mode, in Clark notation (either a local name,
* or "{uri}local")
* @throws IllegalArgumentException if the argument is invalid, for example if the
* format of the name is incorrect or if there is no mode with this name
* or if the mode is private
*/
public void setInitialMode(String name) throws IllegalArgumentException {
try {
xsltTransformer.setInitialMode(QName.fromClarkName(name));
} catch (SaxonApiException e) {
throw new IllegalArgumentException(e);
}
}
/**
* Get the underlying s9api implementation class wrapped by this JAXP Transformer
* @return the underlying s9api XsltTransformer
*/
public XsltTransformer getUnderlyingXsltTransformer() {
return xsltTransformer;
}
/**
* Get the internal Saxon Controller instance that implements this transformation.
* Note that the Controller interface will not necessarily remain stable in future releases
* @return the underlying Saxon Controller instance
*/
@Override
public XsltController getUnderlyingController() {
return xsltTransformer.getUnderlyingController();
}
/**
* Create a JAXP TransformerHandler to perform the transformation
* @return a JAXP TransformerHandler, which allows the transformation to be performed
* in "push" mode on a SAX pipeline.
*/
public TransformerHandler newTransformerHandler() {
return new TransformerHandlerImpl(this);
}
/**
* Create a JAXP XMLFilter which allows this transformation to be added to a SAX pipeline
* @return the transformation in the form of an XMLFilter
*/
@Override
public XMLFilter newXMLFilter() {
return new FilterImpl(this);
}
@Override
public void reset() {
super.reset();
getUnderlyingController().reset();
}
}