c/src/transformers/TXFMXSL.hpp

/*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 2002-2003 The Apache Software Foundation.  All rights 
 * reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
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 *    if and wherever such third-party acknowledgments normally appear.
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 * 4. The names "<WebSig>" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
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 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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 * ====================================================================
 *
 * 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) 2001, Institute for
 * Data Communications Systems, <http://www.nue.et-inf.uni-siegen.de/>.
 * The development of this software was partly funded by the European 
 * Commission in the <WebSig> project in the ISIS Programme. 
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/*
 * XSEC
 *
 * TXFMXSL := Class that performs XML Stylesheet Language transforms
 *
 * $Id$
 *
 */

#include <xsec/transformers/TXFMBase.hpp>

// Xerces

#include <xercesc/dom/DOM.hpp>

// Xalan

#ifndef XSEC_NO_XPATH

#include <xalanc/XalanDOM/XalanDocument.hpp>
#include <xalanc/XercesParserLiaison/XercesDocumentBridge.hpp>
#include <xalanc/XercesParserLiaison/XercesDOMSupport.hpp>
#include <xalanc/XercesParserLiaison/XercesParserLiaison.hpp>
#include <xalanc/XPath/NodeRefList.hpp>
#include <xalanc/XPath/ElementPrefixResolverProxy.hpp>
#include <xalanc/XalanTransformer/XalanTransformer.hpp>

// Xalan Namespace usage
XALAN_USING_XALAN(XercesDOMSupport)
XALAN_USING_XALAN(XercesParserLiaison)
XALAN_USING_XALAN(XalanDocument)
XALAN_USING_XALAN(XalanTransformer)

#endif

#ifndef XSEC_NO_XSLT

/**
 * \brief Transformer to handle XSLT transforms
 * @ingroup internal
 */

class DSIG_EXPORT TXFMXSL : public TXFMBase {

private:

	safeBuffer expr;							// The expression being worked with

	XercesDOMSupport	xds;
	XercesParserLiaison xpl;

	XalanDocument		* xd;

	safeBuffer			sbInDoc;

	XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument		
						* document;
	
	XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument		
						* docOut;			// The output from the transformation

public:

	TXFMXSL(XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument *doc);
	~TXFMXSL();

	// Methods to set the inputs

	void setInput(TXFMBase *newInput);
	
	// Methods to get tranform output type and input requirement

	virtual TXFMBase::ioType getInputType(void);
	virtual TXFMBase::ioType getOutputType(void);
	virtual nodeType getNodeType(void);

	// We do our own name spaces - we have a new document!
	
	virtual bool nameSpacesExpanded(void);
	virtual void expandNameSpaces(void);


	// XSL Unique

	void evaluateStyleSheet(const safeBuffer &sbStyleSheet);

	// Methods to get output data

	virtual unsigned int readBytes(XMLByte * const toFill, const unsigned int maxToFill);
	virtual XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument *getDocument();
	virtual XERCES_CPP_NAMESPACE_QUALIFIER DOMNode *getFragmentNode();
	virtual const XMLCh * getFragmentId();
	
private:
	TXFMXSL();

};


#endif /* No XSLT */