/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xalan" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, Lotus
* Development Corporation., http://www.lotus.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.xalan.templates;
import java.util.Vector;
import org.w3c.dom.*;
import org.xml.sax.*;
import org.apache.xpath.*;
import org.apache.xml.utils.QName;
import org.apache.xalan.res.XSLTErrorResources;
import org.apache.xpath.VariableStack;
import org.apache.xalan.transformer.TransformerImpl;
import javax.xml.transform.SourceLocator;
import javax.xml.transform.TransformerException;
/**
* <meta name="usage" content="advanced"/>
* Implement xsl:call-template.
* <pre>
* &!ELEMENT xsl:call-template (xsl:with-param)*>
* &!ATTLIST xsl:call-template
* name %qname; #REQUIRED
* &
* </pre>
* @see <a href="http://www.w3.org/TR/xslt#named-templates">named-templates in XSLT Specification</a>
*/
public class ElemCallTemplate extends ElemForEach
{
/**
* An xsl:call-template element invokes a template by name;
* it has a required name attribute that identifies the template to be invoked.
* @serial
*/
public QName m_templateName = null;
/**
* Set the "name" attribute.
* An xsl:call-template element invokes a template by name;
* it has a required name attribute that identifies the template to be invoked.
*
* @param name Name attribute to set
*/
public void setName(QName name)
{
m_templateName = name;
}
/**
* Get the "name" attribute.
* An xsl:call-template element invokes a template by name;
* it has a required name attribute that identifies the template to be invoked.
*
* @return Name attribute of this element
*/
public QName getName()
{
return m_templateName;
}
/**
* The template which is named by QName.
* @serial
*/
private ElemTemplateElement m_template = null;
/**
* 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_CALLTEMPLATE;
}
/**
* Return the node name.
*
* @return The name of this element
*/
public String getNodeName()
{
return Constants.ELEMNAME_CALLTEMPLATE_STRING;
}
/**
* This function is called after everything else has been
* recomposed, and allows the template to set remaining
* values that may be based on some other property that
* depends on recomposition.
*/
public void compose()
{
super.compose();
if ((null != m_templateName) && (null == m_template))
{
m_template =
this.getStylesheetRoot().getTemplateComposed(m_templateName);
}
}
/**
* Invoke a named template.
* @see <a href="http://www.w3.org/TR/xslt#named-templates">named-templates in XSLT Specification</a>
*
* @param transformer non-null reference to the the current transform-time state.
* @param sourceNode non-null reference to the <a href="http://www.w3.org/TR/xslt#dt-current-node">current source node</a>.
* @param mode reference, which may be null, to the <a href="http://www.w3.org/TR/xslt#modes">current mode</a>.
*
* @throws TransformerException
*/
public void execute(
TransformerImpl transformer, Node sourceNode, QName mode)
throws TransformerException
{
if (TransformerImpl.S_DEBUG)
transformer.getTraceManager().fireTraceEvent(sourceNode, mode, this);
if (null != m_template)
{
XPathContext xctxt = transformer.getXPathContext();
VariableStack vars = xctxt.getVarStack();
int savedSearchStart = vars.getSearchStart();
if (null != m_paramElems)
transformer.pushParams(xctxt, this, sourceNode, mode);
else
vars.pushContextMarker();
vars.setSearchStart(-1);
SourceLocator savedLocator = xctxt.getSAXLocator();
try
{
xctxt.setSAXLocator(m_template);
// template.executeChildTemplates(transformer, sourceNode, mode, true);
transformer.pushElemTemplateElement(m_template);
m_template.execute(transformer, sourceNode, mode);
}
finally
{
transformer.popElemTemplateElement();
xctxt.setSAXLocator(savedLocator);
vars.popCurrentContext();
vars.setSearchStart(savedSearchStart);
}
}
else
{
transformer.getMsgMgr().error(this, XSLTErrorResources.ER_TEMPLATE_NOT_FOUND,
new Object[]{ m_templateName }); //"Could not find template named: '"+templateName+"'");
}
}
/** Vector of xsl:param elements associated with this element.
* @serial */
protected Vector m_paramElems = null;
/**
* Get the count xsl:param elements associated with this element.
* @return The number of xsl:param elements.
*/
public int getParamElemCount()
{
return (m_paramElems == null) ? 0 : m_paramElems.size();
}
/**
* Get a xsl:param element associated with this element.
*
* @param i Index of element to find
*
* @return xsl:param element at given index
*/
public ElemWithParam getParamElem(int i)
{
return (ElemWithParam) m_paramElems.elementAt(i);
}
/**
* Set a xsl:param element associated with this element.
*
* @param ParamElem xsl:param element to set.
*/
public void setParamElem(ElemWithParam ParamElem)
{
if (null == m_paramElems)
m_paramElems = new Vector();
m_paramElems.addElement(ParamElem);
}
/**
* Add a child to the child list.
* <!ELEMENT xsl:apply-templates (xsl:sort|xsl:with-param)*>
* <!ATTLIST xsl:apply-templates
* select %expr; "node()"
* mode %qname; #IMPLIED
* >
*
* @param newChild Child to add to this node's children list
*
* @return The child that was just added the children list
*
* @throws DOMException
*/
public Node appendChild(Node newChild) throws DOMException
{
int type = ((ElemTemplateElement) newChild).getXSLToken();
if (Constants.ELEMNAME_WITHPARAM == type)
{
setParamElem((ElemWithParam) newChild);
}
// You still have to append, because this element can
// contain a for-each, and other elements.
return super.appendChild(newChild);
}
}