- /*
- * 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 org.w3c.dom.*;
-
- import org.xml.sax.*;
-
- import org.apache.xpath.*;
- import org.apache.xpath.objects.XObject;
- import org.apache.xalan.trace.*;
- import org.apache.xml.utils.QName;
- import org.apache.xalan.transformer.TransformerImpl;
-
- import javax.xml.transform.TransformerException;
-
- /**
- * <meta name="usage" content="advanced"/>
- * Implement xsl:param.
- * <pre>
- * <!ELEMENT xsl:param %template;>
- * <!ATTLIST xsl:param
- * name %qname; #REQUIRED
- * select %expr; #IMPLIED
- * >
- * </pre>
- * @see <a href="http://www.w3.org/TR/xslt#variables">variables in XSLT Specification</a>
- */
- public class ElemParam extends ElemVariable
- {
- int m_qnameID;
-
- /**
- * Constructor ElemParam
- *
- */
- public ElemParam(){}
-
- /**
- * Get an int constant identifying the type of element.
- * @see org.apache.xalan.templates.Constants
- *
- * @return The token ID of the element
- */
- public int getXSLToken()
- {
- return Constants.ELEMNAME_PARAMVARIABLE;
- }
-
- /**
- * Return the node name.
- *
- * @return The element's name
- */
- public String getNodeName()
- {
- return Constants.ELEMNAME_PARAMVARIABLE_STRING;
- }
-
- /**
- * Copy constructor.
- *
- * @param param Element from an xsl:param
- *
- * @throws TransformerException
- */
- public ElemParam(ElemParam param) throws TransformerException
- {
- super(param);
- }
-
- /**
- * 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(StylesheetRoot sroot) throws TransformerException
- {
- super.compose(sroot);
- m_qnameID = sroot.getComposeState().getQNameID(m_qname);
- if(m_parentNode.getXSLToken() == Constants.ELEMNAME_TEMPLATE)
- ((ElemTemplate)m_parentNode).m_inArgsSize++;
- }
-
- /**
- * Execute a variable declaration and push it onto the variable stack.
- * @see <a href="http://www.w3.org/TR/xslt#variables">variables 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) throws TransformerException
- {
- if (TransformerImpl.S_DEBUG)
- transformer.getTraceManager().fireTraceEvent(this);
-
- VariableStack vars = transformer.getXPathContext().getVarStack();
-
- if(!vars.isLocalSet(m_index))
- {
-
- int sourceNode = transformer.getXPathContext().getCurrentNode();
- XObject var = getValue(transformer, sourceNode);
-
- // transformer.getXPathContext().getVarStack().pushVariable(m_qname, var);
- transformer.getXPathContext().getVarStack().setLocalVariable(m_index, var);
- }
-
- if (TransformerImpl.S_DEBUG)
- transformer.getTraceManager().fireTraceEndEvent(this);
- }
-
- }