/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999-2003 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.transformer;
import javax.xml.transform.TransformerException;
import org.apache.xml.dtm.DTM;
import org.apache.xml.utils.XMLString;
/**
* <meta name="usage" content="internal"/>
* Class used to clone a node, possibly including its children to
* a result tree.
*/
public class ClonerToResultTree
{
/** Result tree handler for the cloned tree */
private ResultTreeHandler m_rth;
/** Transformer instance to use for cloning */
private TransformerImpl m_transformer;
/**
* Constructor ClonerToResultTree
*
*
* @param transformer non-null transformer instance to use for the cloning
* @param rth non-null result tree handler for the cloned tree
*/
public ClonerToResultTree(TransformerImpl transformer,
ResultTreeHandler rth)
{
m_rth = rth;
m_transformer = transformer;
}
// /**
// * Clone an element with or without children.
// * TODO: Fix or figure out node clone failure!
// * the error condition is severe enough to halt processing.
// *
// * @param node The node to clone
// * @param shouldCloneAttributes Flag indicating whether to
// * clone children attributes
// *
// * @throws TransformerException
// */
// public void cloneToResultTree(int node, boolean shouldCloneAttributes)
// throws TransformerException
// {
//
// try
// {
// XPathContext xctxt = m_transformer.getXPathContext();
// DTM dtm = xctxt.getDTM(node);
//
// int type = dtm.getNodeType(node);
// switch (type)
// {
// case DTM.TEXT_NODE :
// dtm.dispatchCharactersEvents(node, m_rth, false);
// break;
// case DTM.DOCUMENT_FRAGMENT_NODE :
// case DTM.DOCUMENT_NODE :
//
// // Can't clone a document, but refrain from throwing an error
// // so that copy-of will work
// break;
// case DTM.ELEMENT_NODE :
// {
// Attributes atts;
//
// if (shouldCloneAttributes)
// {
// m_rth.addAttributes(node);
// m_rth.processNSDecls(node, type, dtm);
// }
//
// String ns = dtm.getNamespaceURI(node);
// String localName = dtm.getLocalName(node);
//
// m_rth.startElement(ns, localName, dtm.getNodeNameX(node), null);
// }
// break;
// case DTM.CDATA_SECTION_NODE :
// m_rth.startCDATA();
// dtm.dispatchCharactersEvents(node, m_rth, false);
// m_rth.endCDATA();
// break;
// case DTM.ATTRIBUTE_NODE :
// m_rth.addAttribute(node);
// break;
// case DTM.COMMENT_NODE :
// XMLString xstr = dtm.getStringValue (node);
// xstr.dispatchAsComment(m_rth);
// break;
// case DTM.ENTITY_REFERENCE_NODE :
// m_rth.entityReference(dtm.getNodeNameX(node));
// break;
// case DTM.PROCESSING_INSTRUCTION_NODE :
// {
// // %REVIEW% Is the node name the same as the "target"?
// m_rth.processingInstruction(dtm.getNodeNameX(node),
// dtm.getNodeValue(node));
// }
// break;
// default :
// //"Can not create item in result tree: "+node.getNodeName());
// m_transformer.getMsgMgr().error(null,
// XSLTErrorResources.ER_CANT_CREATE_ITEM,
// new Object[]{ dtm.getNodeName(node) });
// }
// }
// catch(org.xml.sax.SAXException se)
// {
// throw new TransformerException(se);
// }
// } // end cloneToResultTree function
/**
* Clone an element with or without children.
* TODO: Fix or figure out node clone failure!
* the error condition is severe enough to halt processing.
*
* @param node The node to clone
* @param shouldCloneAttributes Flag indicating whether to
* clone children attributes
*
* @throws TransformerException
*/
public static void cloneToResultTree(int node, int nodeType, DTM dtm,
ResultTreeHandler rth,
boolean shouldCloneAttributes)
throws TransformerException
{
try
{
switch (nodeType)
{
case DTM.TEXT_NODE :
dtm.dispatchCharactersEvents(node, rth, false);
break;
case DTM.DOCUMENT_FRAGMENT_NODE :
case DTM.DOCUMENT_NODE :
// Can't clone a document, but refrain from throwing an error
// so that copy-of will work
break;
case DTM.ELEMENT_NODE :
{
// Note: SAX apparently expects "no namespace" to be
// represented as "" rather than null.
String ns = dtm.getNamespaceURI(node);
if (ns==null) ns="";
String localName = dtm.getLocalName(node);
rth.startElement(ns, localName, dtm.getNodeNameX(node), null);
// If outputting attrs as separate events, they must
// _follow_ the startElement event. (Think of the
// xsl:attribute directive.)
if (shouldCloneAttributes)
{
rth.addAttributes(node);
rth.processNSDecls(node, nodeType, dtm);
}
}
break;
case DTM.CDATA_SECTION_NODE :
rth.startCDATA();
dtm.dispatchCharactersEvents(node, rth, false);
rth.endCDATA();
break;
case DTM.ATTRIBUTE_NODE :
rth.addAttribute(node);
break;
case DTM.NAMESPACE_NODE:
// %REVIEW% Normally, these should have been handled with element.
// It's possible that someone may write a stylesheet that tries to
// clone them explicitly. If so, we need the equivalent of
// rth.addAttribute().
rth.processNSDecls(node,DTM.NAMESPACE_NODE,dtm);
break;
case DTM.COMMENT_NODE :
XMLString xstr = dtm.getStringValue (node);
xstr.dispatchAsComment(rth);
break;
case DTM.ENTITY_REFERENCE_NODE :
rth.entityReference(dtm.getNodeNameX(node));
break;
case DTM.PROCESSING_INSTRUCTION_NODE :
{
// %REVIEW% Is the node name the same as the "target"?
rth.processingInstruction(dtm.getNodeNameX(node),
dtm.getNodeValue(node));
}
break;
default :
//"Can not create item in result tree: "+node.getNodeName());
throw new TransformerException(
"Can't clone node: "+dtm.getNodeName(node));
}
}
catch(org.xml.sax.SAXException se)
{
throw new TransformerException(se);
}
} // end cloneToResultTree function
}