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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// 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.s9api.XsltExecutable;
import javax.xml.transform.Templates;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import java.util.Properties;
/**
* Saxon implementation of the JAXP Templates interface.
* Since Saxon 9.6, JAXP interfaces are implemented as a layer above the s9api interface
*/
public class TemplatesImpl implements Templates {
private final TransformerFactory factory;
private final XsltExecutable executable;
private boolean forceStreaming;
public TemplatesImpl(TransformerFactory factory, XsltExecutable executable) {
this.factory = factory;
this.executable = executable;
}
/**
* Create a new transformation context for this Templates object.
*
* @return A valid non-null instance of a Transformer.
*/
@Override
public Transformer newTransformer() {
Transformer result;
if (forceStreaming) {
result = new StreamingTransformerImpl(executable, executable.load30());
} else {
result = new TransformerImpl(executable, executable.load());
}
if (factory.getURIResolver() != null) {
result.setURIResolver(factory.getURIResolver());
}
return result;
}
/**
* Get the properties corresponding to the effective xsl:output element.
* The object returned will
* be a clone of the internal values. Accordingly, it can be mutated
* without mutating the Templates object, and then handed in to
* {@link javax.xml.transform.Transformer#setOutputProperties}.
* The properties returned should contain properties set by the stylesheet,
* and these properties are "defaulted" by default properties specified by
* section 16 of the
* XSL Transformations (XSLT) W3C Recommendation. The properties that
* were specifically set by the stylesheet should be in the base
* Properties list, while the XSLT default properties that were not
* specifically set should be in the "default" Properties list. Thus,
* getOutputProperties().getProperty(String key) will obtain any
* property in that was set by the stylesheet, or the default
* properties, while
* getOutputProperties().get(String key) will only retrieve properties
* that were explicitly set in the stylesheet.
* For XSLT,
* Attribute
* Value Templates attribute values will
* be returned unexpanded (since there is no context at this point). The
* namespace prefixes inside Attribute Value Templates will be unexpanded,
* so that they remain valid XPath values.
*
* @return A Properties object, never null.
*/
@Override
public Properties getOutputProperties() {
Properties details = executable.getUnderlyingCompiledStylesheet().getPrimarySerializationProperties().getProperties();
return new Properties(details);
}
/**
* Ask whether any transformer created from this Templates object should have streaming behaviour.
* Specifically this means that when a SAXSource or StreamSource is supplied as input to the transform()
* method, provided that the initial mode is actually streamable, then the source object is not
* materialized as the global context item, so any reference to the global context item from within
* a global variable will fail with dynamic error XPDY0002.
*
* @return true if streaming behaviour is enforced for any generated Transformer object.
*/
public boolean isForceStreaming() {
return forceStreaming;
}
/**
* Say that any transformer created from this Templates object should have streaming behaviour.
* Specifically this means that when a SAXSource or StreamSource is supplied as input to the transform()
* method, provided that the initial mode is actually streamable, then the source object is not
* materialized as the global context item, so any reference to the global context item from within
* a global variable will fail with dynamic error XPDY0002.
*
* @param forceStreaming true if streaming behaviour is to be enforced for any generated
* Transformer object.
*/
public void setForceStreaming(boolean forceStreaming) {
this.forceStreaming = forceStreaming;
}
/**
* Get the underlying implementation object
* @return the underlying S9API {@link XsltExecutable} object
*/
public XsltExecutable getImplementation() {
return executable;
}
}