/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
/*
* $Id: ElemCopy.java 468643 2006-10-28 06:56:03Z minchau $
*/
package org.apache.xalan.templates;
import javax.xml.transform.TransformerException;
import org.apache.xalan.transformer.ClonerToResultTree;
import org.apache.xalan.transformer.TransformerImpl;
import org.apache.xml.dtm.DTM;
import org.apache.xalan.serialize.SerializerUtils;
import org.apache.xml.serializer.SerializationHandler;
import org.apache.xpath.XPathContext;
/**
* Implement xsl:copy.
* <pre>
* <!ELEMENT xsl:copy %template;>
* <!ATTLIST xsl:copy
* %space-att;
* use-attribute-sets %qnames; #IMPLIED
* >
* </pre>
* @see <a href="http://www.w3.org/TR/xslt#copying">copying in XSLT Specification</a>
* @xsl.usage advanced
*/
public class ElemCopy extends ElemUse
{
static final long serialVersionUID = 5478580783896941384L;
/**
* Get an int constant identifying the type of element.
* @see org.apache.xalan.templates.Constants
*
* @return The token ID for this element
*/
public int getXSLToken()
{
return Constants.ELEMNAME_COPY;
}
/**
* Return the node name.
*
* @return This element's name
*/
public String getNodeName()
{
return Constants.ELEMNAME_COPY_STRING;
}
/**
* The xsl:copy element provides an easy way of copying the current node.
* Executing this function creates a copy of the current node into the
* result tree.
* <p>The namespace nodes of the current node are automatically
* copied as well, but the attributes and children of the node are not
* automatically copied. The content of the xsl:copy element is a
* template for the attributes and children of the created node;
* the content is instantiated only for nodes of types that can have
* attributes or children (i.e. root nodes and element nodes).</p>
* <p>The root node is treated specially because the root node of the
* result tree is created implicitly. When the current node is the
* root node, xsl:copy will not create a root node, but will just use
* the content template.</p>
*
* @param transformer non-null reference to the the current transform-time state.
*
* @throws TransformerException
*/
public void execute(
TransformerImpl transformer)
throws TransformerException
{
XPathContext xctxt = transformer.getXPathContext();
try
{
int sourceNode = xctxt.getCurrentNode();
xctxt.pushCurrentNode(sourceNode);
DTM dtm = xctxt.getDTM(sourceNode);
short nodeType = dtm.getNodeType(sourceNode);
if ((DTM.DOCUMENT_NODE != nodeType) && (DTM.DOCUMENT_FRAGMENT_NODE != nodeType))
{
SerializationHandler rthandler = transformer.getSerializationHandler();
if (transformer.getDebug())
transformer.getTraceManager().fireTraceEvent(this);
// TODO: Process the use-attribute-sets stuff
ClonerToResultTree.cloneToResultTree(sourceNode, nodeType, dtm,
rthandler, false);
if (DTM.ELEMENT_NODE == nodeType)
{
super.execute(transformer);
SerializerUtils.processNSDecls(rthandler, sourceNode, nodeType, dtm);
transformer.executeChildTemplates(this, true);
String ns = dtm.getNamespaceURI(sourceNode);
String localName = dtm.getLocalName(sourceNode);
transformer.getResultTreeHandler().endElement(ns, localName,
dtm.getNodeName(sourceNode));
}
if (transformer.getDebug())
transformer.getTraceManager().fireTraceEndEvent(this);
}
else
{
if (transformer.getDebug())
transformer.getTraceManager().fireTraceEvent(this);
super.execute(transformer);
transformer.executeChildTemplates(this, true);
if (transformer.getDebug())
transformer.getTraceManager().fireTraceEndEvent(this);
}
}
catch(org.xml.sax.SAXException se)
{
throw new TransformerException(se);
}
finally
{
xctxt.popCurrentNode();
}
}
}