XSECBinTXFMInputStream.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
 *
 * XSECBinTXFMInputStream := Implement the BinInputStream around Transforms.
 *
 * Author(s): Berin Lautenbach
 *
 * $ID$
 *
 * $LOG$
 *                   
 */


#ifndef XSECBINTXFMINPUTSTREAM_INCLUDE
#define XSECBINTXFMINPUTSTREAM_INCLUDE

#include <xsec/framework/XSECDefs.hpp>
#include <xercesc/util/BinInputStream.hpp>

class TXFMChain;
class TXFMBase;

class DSIG_EXPORT XSECBinTXFMInputStream : public XERCES_CPP_NAMESPACE_QUALIFIER BinInputStream
{

public :


    XSECBinTXFMInputStream(TXFMChain * lst, bool deleteWhenDone = true);

    virtual ~XSECBinTXFMInputStream();



    void reset();



    virtual unsigned int curPos() const;

    virtual unsigned int readBytes(XMLByte* const  toFill, 
        const unsigned int maxToRead);


private :

    TXFMBase                    * mp_txfm;          // End point of list
    TXFMChain                   * mp_chain;         // The actual chain
    bool                        m_deleteWhenDone;   // Do we delete?
    bool                        m_deleted;          // Have we deleted?
    bool                        m_done;             // Are we done?
    unsigned int                m_currentIndex;     // How much read?

};



#endif

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