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/*
 * XSEC
 *
 * TXFMBaseC14n := Class that performs C14n canonicalisation
 *
 * Author(s): Berin Lautenbach
 *
 * $Id: TXFMC14n.hpp,v 1.5 2003/03/02 08:21:02 blautenb Exp $
 *
 */

#include <xsec/transformers/TXFMBase.hpp>
#include <xsec/utils/XSECSafeBuffer.hpp>
#include <xsec/canon/XSECC14n20010315.hpp>
#include <xsec/utils/XSECNameSpaceExpander.hpp>

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

class DSIG_EXPORT TXFMC14n : public TXFMBase {

private:

	XSECC14n20010315		* mp_c14n;			// The actual canonicaliser
	
public:

	TXFMC14n(DOMDocument *doc);
	~TXFMC14n();

	// 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 TXFMBase::nodeType getNodeType(void);

	// Overrid comment acivation
	virtual void activateComments(void);

	// Set exclusive
	virtual void setExclusive();
	virtual void setExclusive(safeBuffer & NSList);

	// Methods to get output data

	virtual unsigned int readBytes(XMLByte * const toFill, const unsigned int maxToFill);
	virtual DOMDocument *getDocument();
	virtual DOMNode *getFragmentNode();
	virtual const XMLCh * getFragmentId();
	
private:
	TXFMC14n();
};