DataTypeHandler.h

/*****************************************************************************
 *
 *  $Id: DataTypeHandler.h,v 489ea0becd74 2010/03/11 13:29:43 fp $
 *
 *  Copyright (C) 2006-2009  Florian Pose, Ingenieurgemeinschaft IgH
 *
 *  This file is part of the IgH EtherCAT Master.
 *
 *  The IgH EtherCAT Master is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License version 2, as
 *  published by the Free Software Foundation.
 *
 *  The IgH EtherCAT Master 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 General
 *  Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with the IgH EtherCAT Master; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *  ---
 *
 *  The license mentioned above concerns the source code only. Using the
 *  EtherCAT technology and brand is only permitted in compliance with the
 *  industrial property and similar rights of Beckhoff Automation GmbH.
 *
 ****************************************************************************/

#ifndef __DATATYPEHANDLER_H__
#define __DATATYPEHANDLER_H__

/****************************************************************************/

#include <stdint.h>
#include <string>
#include <stdexcept>
#include <ostream>

/****************************************************************************/

class DataTypeHandler
{
    public:
        DataTypeHandler();

    protected:
        struct DataType {
            const char *name;
            uint16_t code;
            size_t byteSize;
        };

		static std::string typeInfo();

        static const DataType *findDataType(const std::string &);
        static const DataType *findDataType(uint16_t);
        static size_t interpretAsType(const DataType *, const std::string &,
                void *, size_t);

        class SizeException:
            public std::runtime_error
        {
            public:
                SizeException(const std::string &msg):
                    runtime_error(msg) {}
        };

        static void outputData(std::ostream &, const DataType *,
                void *, size_t);
        static void printRawData(ostream &, const uint8_t *, size_t);

    private:
        static const DataType dataTypes[];
};

/****************************************************************************/

#endif