// XDRStreamUnMarshaller.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_XDRStreamUnMarshaller_h

#define I_XDRStreamUnMarshaller_h 1

#include <iostream>

using std::istream ;

using std::cin ;

#include "UnMarshaller.h"

#include "XDRUtils.h"

namespace libdap

{

const int XDR_DAP_BUFF_SIZE = 4096; // This will be compared to a signed int

/** @brief unmarshaller that knows how to unmarshall/deserialize dap objects

 * using XDR from a file

 */

class XDRStreamUnMarshaller : public UnMarshaller

{

private:

    XDR 			d_source ;

    istream &		d_in;

    static char *	d_buf;

    				XDRStreamUnMarshaller() ;

    				XDRStreamUnMarshaller( const XDRStreamUnMarshaller &um ) ;

    XDRStreamUnMarshaller &	operator=( const XDRStreamUnMarshaller & ) ;

public:

    				XDRStreamUnMarshaller( istream &in ) ;

    virtual			~XDRStreamUnMarshaller() ;

    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 get_vector(char **val, unsigned int &num, int width, Type type);

    virtual void	dump(ostream &strm) const ;

} ;

} // namespace libdap

#endif // I_XDRStreamUnMarshaller_h