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MemBufInputSource.hpp

/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999-2000 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 "Xerces" 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,
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 * 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, International
 * Business Machines, Inc., http://www.ibm.com .  For more information
 * on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

/*
 * $Log: MemBufInputSource.hpp,v $
 * Revision 1.1  2002/05/11 19:59:42  bhavani
 * CR#CR062582# adding xercesc 1.7 file
 *
 * Revision 1.2  2002/02/20 18:17:01  tng
 * [Bug 5977] Warnings on generating apiDocs.
 *
 * Revision 1.1.1.1  2002/02/01 22:21:50  peiyongz
 * sane_include
 *
 * Revision 1.6  2000/12/14 18:49:54  tng
 * Fix API document generation warning: "Warning: end of member group without matching begin"
 *
 * Revision 1.5  2000/02/24 20:00:22  abagchi
 * Swat for removing Log from API docs
 *
 * Revision 1.4  2000/02/15 23:59:06  roddey
 * More updated documentation of Framework classes.
 *
 * Revision 1.3  2000/02/15 01:21:30  roddey
 * Some initial documentation improvements. More to come...
 *
 * Revision 1.2  2000/02/06 07:47:46  rahulj
 * Year 2K copyright swat.
 *
 * Revision 1.1  2000/01/12 00:13:26  roddey
 * These were moved from internal/ to framework/, which was something that should have
 * happened long ago. They are really framework type of classes.
 *
 * Revision 1.1.1.1  1999/11/09 01:08:10  twl
 * Initial checkin
 *
 * Revision 1.2  1999/11/08 20:44:43  rahul
 * Swat for adding in Product name and CVS comment log variable.
 *
 */


#if !defined(MEMBUFINPUTSOURCE_HPP)
#define MEMBUFINPUTSOURCE_HPP

#include <xercesc/sax/InputSource.hpp>

class BinInputStream;


class XMLPARSER_EXPORT MemBufInputSource : public InputSource
{
public :
    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------


    MemBufInputSource
    (
        const   XMLByte* const  srcDocBytes
        , const unsigned int    byteCount
        , const XMLCh* const    bufId
        , const bool            adoptBuffer = false
    );

    MemBufInputSource
    (
        const   XMLByte* const  srcDocBytes
        , const unsigned int    byteCount
        , const char* const     bufId
        , const bool            adoptBuffer = false
    );

    ~MemBufInputSource();


    // -----------------------------------------------------------------------
    //  Virtual input source interface
    // -----------------------------------------------------------------------


    BinInputStream* makeStream() const;



    // -----------------------------------------------------------------------
    //  Setter methods
    // -----------------------------------------------------------------------


    void setCopyBufToStream(const bool newState);



private :
    // -----------------------------------------------------------------------
    //  Private data members
    //
    //  fAdopted
    //      Indicates whether the buffer is adopted or not. If so, then it
    //      is destroyed when the input source is destroyed.
    //
    //  fByteCount
    //      The size of the source document.
    //
    //  fCopyBufToStream
    //      This defaults to true (the safe option), which causes it to
    //      give a copy of the buffer to any streams it creates. If you set
    //      it to false, it will allow the streams to just reference the
    //      buffer (in which case this input source must stay alive as long
    //      as the buffer is in use by the stream.)
    //
    //  fSrcBytes
    //      The source memory buffer that is being spooled from. Whether it
    //      belongs to the this input source or not is controlled by the
    //      fAdopted flag.
    // -----------------------------------------------------------------------
    bool            fAdopted;
    unsigned int    fByteCount;
    bool            fCopyBufToStream;
    const XMLByte*  fSrcBytes;
};


inline void MemBufInputSource::setCopyBufToStream(const bool newState)
{
    fCopyBufToStream = newState;
}

#endif

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