// XDRFileUnMarshaller.h

// -*- mode: c++; c-basic-offset:4 -*-

// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.

// Copyright (c) 2002,2003 OPeNDAP, Inc.
// Author: Patrick West <pwest@ucar.edu>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.

// (c) COPYRIGHT URI/MIT 1994-1999
// Please read the full copyright statement in the file COPYRIGHT_URI.
//
// Authors:
//      pwest       Patrick West <pwest@ucar.edu>

#ifndef I_XDRFileUnMarshaller_h
#define I_XDRFileUnMarshaller_h 1

#include "UnMarshaller.h"
#include "XDRUtils.h"

namespace libdap
{

/** @brief unmarshaller that knows how to unmarshall/deserialize dap objects
 * using XDR from a file
 */
class XDRFileUnMarshaller : public UnMarshaller
{
private:
    XDR *			_source ;

    				XDRFileUnMarshaller() ;
    				XDRFileUnMarshaller( const XDRFileUnMarshaller &um ) ;
    XDRFileUnMarshaller &	operator=( const XDRFileUnMarshaller & ) ;
public:
    				XDRFileUnMarshaller( FILE *out ) ;
    virtual			~XDRFileUnMarshaller() ;

    virtual void		get_byte( dods_byte &val ) ;

    virtual void		get_int16( dods_int16 &val ) ;
    virtual void		get_int32( dods_int32 &val ) ;

    virtual void		get_float32( dods_float32 &val ) ;
    virtual void		get_float64( dods_float64 &val ) ;

    virtual void		get_uint16( dods_uint16 &val ) ;
    virtual void		get_uint32( dods_uint32 &val ) ;

    virtual void		get_str( string &val ) ;
    virtual void		get_url( string &val ) ;

    virtual void		get_opaque( char *val, unsigned int len ) ;
    virtual void		get_int( int &val ) ;

    virtual void		get_vector( char **val, unsigned int &num,
					    Vector &vec ) ;
    virtual void		get_vector( char **val, unsigned int &num,
					    int width, Vector &vec ) ;

    virtual void		dump(ostream &strm) const ;
} ;

} // namespace libdap

#endif // I_XDRFileUnMarshaller_h