/*
* 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.processor;
import org.apache.xalan.templates.ElemLiteralResult;
import org.apache.xalan.templates.ElemTemplateElement;
import org.apache.xalan.templates.Stylesheet;
import org.apache.xalan.templates.ElemExtensionCall;
import org.apache.xalan.templates.ElemTemplate;
import org.apache.xalan.templates.Constants;
import org.apache.xalan.templates.XMLNSDecl;
import org.apache.xalan.res.XSLMessages;
import org.apache.xalan.res.XSLTErrorResources;
import org.apache.xpath.XPath;
import org.apache.xalan.templates.StylesheetRoot;
import javax.xml.transform.TransformerException;
import org.xml.sax.Attributes;
import org.xml.sax.Locator;
import org.xml.sax.helpers.AttributesImpl;
import javax.xml.transform.TransformerConfigurationException;
import org.apache.xml.utils.SAXSourceLocator;
import java.util.Vector;
/**
* <meta name="usage" content="internal"/>
* Processes an XSLT literal-result-element, or something that looks
* like one. The actual {@link org.apache.xalan.templates.ElemTemplateElement}
* produced may be a {@link org.apache.xalan.templates.ElemLiteralResult},
* a {@link org.apache.xalan.templates.StylesheetRoot}, or a
* {@link org.apache.xalan.templates.ElemExtensionCall}.
*
* @see <a href="http://www.w3.org/TR/xslt#literal-result-element">literal-result-element in XSLT Specification</a>
* @see org.apache.xalan.templates.ElemLiteralResult
*/
public class ProcessorLRE extends ProcessorTemplateElem
{
/**
* Receive notification of the start of an element.
*
* @param handler non-null reference to current StylesheetHandler that is constructing the Templates.
* @param uri The Namespace URI, or an empty string.
* @param localName The local name (without prefix), or empty string if not namespace processing.
* @param rawName The qualified name (with prefix).
* @param attributes The specified or defaulted attributes.
*/
public void startElement(
StylesheetHandler handler, String uri, String localName, String rawName, Attributes attributes)
throws org.xml.sax.SAXException
{
try
{
ElemTemplateElement p = handler.getElemTemplateElement();
boolean excludeXSLDecl = false;
boolean isLREAsStyleSheet = false;
if (null == p)
{
// Literal Result Template as stylesheet.
XSLTElementProcessor lreProcessor = handler.popProcessor();
XSLTElementProcessor stylesheetProcessor =
handler.getProcessorFor(Constants.S_XSLNAMESPACEURL, "stylesheet",
"xsl:stylesheet");
handler.pushProcessor(lreProcessor);
Stylesheet stylesheet;
try
{
stylesheet = new StylesheetRoot(handler.getSchema(), handler.getStylesheetProcessor().getErrorListener());
}
catch(TransformerConfigurationException tfe)
{
throw new TransformerException(tfe);
}
// stylesheet.setDOMBackPointer(handler.getOriginatingNode());
// ***** Note that we're assigning an empty locator. Is this necessary?
SAXSourceLocator slocator = new SAXSourceLocator();
Locator locator = handler.getLocator();
if(null != locator)
{
slocator.setLineNumber(locator.getLineNumber());
slocator.setColumnNumber(locator.getColumnNumber());
slocator.setPublicId(locator.getPublicId());
slocator.setSystemId(locator.getSystemId());
}
stylesheet.setLocaterInfo(slocator);
stylesheet.setPrefixes(handler.getNamespaceSupport());
handler.pushStylesheet(stylesheet);
isLREAsStyleSheet = true;
AttributesImpl stylesheetAttrs = new AttributesImpl();
AttributesImpl lreAttrs = new AttributesImpl();
int n = attributes.getLength();
for (int i = 0; i < n; i++)
{
String attrLocalName = attributes.getLocalName(i);
String attrUri = attributes.getURI(i);
String value = attributes.getValue(i);
if ((null != attrUri) && attrUri.equals(Constants.S_XSLNAMESPACEURL))
{
stylesheetAttrs.addAttribute(null, attrLocalName, attrLocalName,
attributes.getType(i),
attributes.getValue(i));
}
else if ((attrLocalName.startsWith("xmlns:") || attrLocalName.equals(
"xmlns")) && value.equals(Constants.S_XSLNAMESPACEURL))
{
// ignore
}
else
{
lreAttrs.addAttribute(attrUri, attrLocalName,
attributes.getQName(i),
attributes.getType(i),
attributes.getValue(i));
}
}
attributes = lreAttrs;
// Set properties from the attributes, but don't throw
// an error if there is an attribute defined that is not
// allowed on a stylesheet.
try{
stylesheetProcessor.setPropertiesFromAttributes(handler, "stylesheet",
stylesheetAttrs, stylesheet);
}
catch (Exception e)
{
// This is pretty ugly, but it will have to do for now.
// This is just trying to append some text specifying that
// this error came from a missing or invalid XSLT namespace
// declaration.
// If someone comes up with a better solution, please feel
// free to contribute it. -mm
String msg = e.getMessage();
if (stylesheet.getDeclaredPrefixes() == null ||
!declaredXSLNS(stylesheet))
{
msg = msg +"; " + XSLMessages.createWarning(XSLTErrorResources.WG_OLD_XSLT_NS, null);
}
//else
throw new org.xml.sax.SAXException(msg, e);
}
handler.pushElemTemplateElement(stylesheet);
ElemTemplate template = new ElemTemplate();
appendAndPush(handler, template);
XPath rootMatch = new XPath("/", stylesheet, stylesheet, XPath.MATCH,
handler.getStylesheetProcessor().getErrorListener());
template.setMatch(rootMatch);
// template.setDOMBackPointer(handler.getOriginatingNode());
stylesheet.setTemplate(template);
p = handler.getElemTemplateElement();
excludeXSLDecl = true;
}
XSLTElementDef def = getElemDef();
Class classObject = def.getClassObject();
boolean isExtension = false;
boolean isComponentDecl = false;
boolean isUnknownTopLevel = false;
while (null != p)
{
// System.out.println("Checking: "+p);
if (p instanceof ElemLiteralResult)
{
ElemLiteralResult parentElem = (ElemLiteralResult) p;
isExtension = parentElem.containsExtensionElementURI(uri);
}
else if (p instanceof Stylesheet)
{
Stylesheet parentElem = (Stylesheet) p;
isExtension = parentElem.containsExtensionElementURI(uri);
if ((false == isExtension) && (null != uri)
&& uri.equals(Constants.S_BUILTIN_EXTENSIONS_URL))
{
isComponentDecl = true;
}
else
{
isUnknownTopLevel = true;
}
}
if (isExtension)
break;
p = p.getParentElem();
}
ElemTemplateElement elem = null;
try
{
if (isExtension)
{
// System.out.println("Creating extension(1): "+uri);
elem = new ElemExtensionCall();
}
else if (isComponentDecl)
{
elem = (ElemTemplateElement) classObject.newInstance();
}
else if (isUnknownTopLevel)
{
// TBD: Investigate, not sure about this. -sb
elem = (ElemTemplateElement) classObject.newInstance();
}
else
{
elem = (ElemTemplateElement) classObject.newInstance();
}
elem.setDOMBackPointer(handler.getOriginatingNode());
elem.setLocaterInfo(handler.getLocator());
elem.setPrefixes(handler.getNamespaceSupport(), excludeXSLDecl);
if (elem instanceof ElemLiteralResult)
{
((ElemLiteralResult) elem).setNamespace(uri);
((ElemLiteralResult) elem).setLocalName(localName);
((ElemLiteralResult) elem).setRawName(rawName);
((ElemLiteralResult) elem).setIsLiteralResultAsStylesheet(
isLREAsStyleSheet);
}
}
catch (InstantiationException ie)
{
handler.error("Failed creating ElemLiteralResult instance!", ie);
}
catch (IllegalAccessException iae)
{
handler.error("Failed creating ElemLiteralResult instance!", iae);
}
setPropertiesFromAttributes(handler, rawName, attributes, elem);
// bit of a hack here...
if (!isExtension && (elem instanceof ElemLiteralResult))
{
isExtension =
((ElemLiteralResult) elem).containsExtensionElementURI(uri);
if (isExtension)
{
// System.out.println("Creating extension(2): "+uri);
elem = new ElemExtensionCall();
elem.setLocaterInfo(handler.getLocator());
elem.setPrefixes(handler.getNamespaceSupport());
((ElemLiteralResult) elem).setNamespace(uri);
((ElemLiteralResult) elem).setLocalName(localName);
((ElemLiteralResult) elem).setRawName(rawName);
setPropertiesFromAttributes(handler, rawName, attributes, elem);
}
}
appendAndPush(handler, elem);
}
catch(TransformerException te)
{
throw new org.xml.sax.SAXException(te);
}
}
/**
* Receive notification of the end of an element.
*
* @param name The element type name.
* @param attributes The specified or defaulted attributes.
*
* @param handler non-null reference to current StylesheetHandler that is constructing the Templates.
* @param uri The Namespace URI, or an empty string.
* @param localName The local name (without prefix), or empty string if not namespace processing.
* @param rawName The qualified name (with prefix).
*/
public void endElement(
StylesheetHandler handler, String uri, String localName, String rawName)
throws org.xml.sax.SAXException
{
ElemTemplateElement elem = handler.getElemTemplateElement();
if (elem instanceof ElemLiteralResult)
{
if (((ElemLiteralResult) elem).getIsLiteralResultAsStylesheet())
{
handler.popStylesheet();
}
}
super.endElement(handler, uri, localName, rawName);
}
private boolean declaredXSLNS(Stylesheet stylesheet)
{
Vector declaredPrefixes = stylesheet.getDeclaredPrefixes();
int n = declaredPrefixes.size();
for (int i = 0; i < n; i++)
{
XMLNSDecl decl = (XMLNSDecl) declaredPrefixes.elementAt(i);
if(decl.getURI().equals(Constants.S_XSLNAMESPACEURL))
return true;
}
return false;
}
}