TXFMXSL.hpp

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/*
 * Copyright 2002-2005 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * XSEC
 *
 * TXFMXSL := Class that performs XML Stylesheet Language transforms
 *
 * $Id: TXFMXSL.hpp,v 1.12 2005/02/03 13:50:12 milan Exp $
 *
 */

#include <xsec/transformers/TXFMBase.hpp>

// Xerces

#include <xercesc/dom/DOM.hpp>

// Xalan

#ifndef XSEC_NO_XPATH

#include <xalanc/XalanDOM/XalanDocument.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

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 */

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