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/*
* 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.xslt;
import org.w3c.dom.*;
import org.xml.sax.*;
import org.apache.xalan.xpath.*;
import org.apache.xalan.xslt.trace.SelectionEvent;
import org.apache.xalan.xpath.xml.QName;
import org.apache.xalan.xslt.res.XSLTErrorResources;
/**
* <meta name="usage" content="advanced"/>
* Implement xsl:choose.
*/
public class ElemChoose extends ElemTemplateElement
{
public int getXSLToken()
{
return Constants.ELEMNAME_CHOOSE;
}
public ElemChoose (XSLTEngineImpl processor,
Stylesheet stylesheetTree,
String name,
AttributeList atts,
int lineNumber, int columnNumber)
throws SAXException
{
super(processor, stylesheetTree, name, atts, lineNumber, columnNumber);
int nAttrs = atts.getLength();
for(int i = 0; i < nAttrs; i++)
{
String aname = atts.getName(i);
if(!(isAttrOK(aname, atts, i) || processSpaceAttr(aname, atts, i)))
{
processor.error(XSLTErrorResources.ER_ILLEGAL_ATTRIBUTE, new Object[] {name, aname}); //name+" has an illegal attribute: "+aname);
}
}
}
public void execute(XSLTEngineImpl processor,
Node sourceTree,
Node sourceNode,
QName mode)
throws XSLProcessorException,
java.net.MalformedURLException,
java.io.FileNotFoundException,
java.io.IOException,
SAXException
{
super.execute(processor, sourceTree, sourceNode, mode);
boolean found = false;
for (ElemTemplateElement node = (ElemTemplateElement)getFirstChild();
node != null; node = node.m_nextSibling)
{
int type = node.getXSLToken();
if(Constants.ELEMNAME_WHEN == type)
{
found = true;
ElemWhen when = (ElemWhen)node;
// must be xsl:when
XObject test = when.m_test.execute(processor.getExecContext(),
sourceNode, this, null, null, true);
if(null != m_stylesheet.m_stylesheetRoot.m_traceListeners)
{
m_stylesheet.m_stylesheetRoot.fireSelectedEvent(new SelectionEvent(processor,
sourceNode,
when,
"test",
when.m_test,
test));
}
if((null != test) && test.bool())
{
when.executeChildren(processor, sourceTree,
sourceNode, mode);
return;
}
}
else if(Constants.ELEMNAME_OTHERWISE == type)
{
found = true;
// xsl:otherwise
node.executeChildren(processor, sourceTree,
sourceNode, mode);
return;
}
}
if(!found)
processor.error(XSLTErrorResources.ER_CHOOSE_REQUIRES_WHEN);
}
/**
* Add a child to the child list.
*/
public Node appendChild(Node newChild)
throws DOMException
{
int type = ((ElemTemplateElement)newChild).getXSLToken();
switch(type)
{
case Constants.ELEMNAME_WHEN:
case Constants.ELEMNAME_OTHERWISE:
// TODO: Positional checking
break;
default:
error(XSLTErrorResources.ER_CANNOT_ADD, new Object[] {((ElemTemplateElement)newChild).m_elemName, this.m_elemName}); //"Can not add " +((ElemTemplateElement)newChild).m_elemName +
//" to " + this.m_elemName);
}
return super.appendChild(newChild);
}
}
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