BinaryDecoder.h

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/* Copyright 2013-2019 Homegear GmbH
 *
 * libhomegear-base 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 3 of the
 * License, or (at your option) any later version.
 * 
 * libhomegear-base 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 libhomegear-base.  If not, see
 * <http://www.gnu.org/licenses/>.
 * 
 * In addition, as a special exception, the copyright holders give
 * permission to link the code of portions of this program with the
 * OpenSSL library under certain conditions as described in each
 * individual source file, and distribute linked combinations
 * including the two.
 * You must obey the GNU Lesser General Public License in all respects
 * for all of the code used other than OpenSSL.  If you modify
 * file(s) with this exception, you may extend this exception to your
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*/

#ifndef BINARYDECODER_H_
#define BINARYDECODER_H_

#include "Ansi.h"
#include "../Exception.h"

#include <memory>
#include <cstring>
#include <vector>
#include <string>

namespace BaseLib {

class SharedObjects;

class BinaryDecoderException : public BaseLib::Exception {
 public:
  explicit BinaryDecoderException(std::string message) : BaseLib::Exception(message) {}
};

class BinaryDecoder {
 public:
  BinaryDecoder() = default;
  explicit BinaryDecoder(bool ansi);

  explicit BinaryDecoder(BaseLib::SharedObjects *baseLib);

  BinaryDecoder(BaseLib::SharedObjects *baseLib, bool ansi);
  ~BinaryDecoder() = default;

  static int32_t decodeInteger(const std::vector<char> &encodedData, uint32_t &position);
  static int32_t decodeInteger(const std::vector<uint8_t> &encodedData, uint32_t &position);
  static int64_t decodeInteger64(const std::vector<char> &encodedData, uint32_t &position);
  static int64_t decodeInteger64(const std::vector<uint8_t> &encodedData, uint32_t &position);
  static uint8_t decodeByte(const std::vector<char> &encodedData, uint32_t &position);
  static uint8_t decodeByte(const std::vector<uint8_t> &encodedData, uint32_t &position);
  std::string decodeString(const std::vector<char> &encodedData, uint32_t &position);
  std::string decodeString(const std::vector<uint8_t> &encodedData, uint32_t &position);
  static std::vector<uint8_t> decodeBinary(const std::vector<char> &encodedData, uint32_t &position);
  static std::vector<uint8_t> decodeBinary(const std::vector<uint8_t> &encodedData, uint32_t &position);
  static bool decodeBoolean(const std::vector<char> &encodedData, uint32_t &position);
  static bool decodeBoolean(const std::vector<uint8_t> &encodedData, uint32_t &position);
  static double decodeFloat(const std::vector<char> &encodedData, uint32_t &position);
  static double decodeFloat(const std::vector<uint8_t> &encodedData, uint32_t &position);
 protected:
  bool _ansi = false;
  std::shared_ptr<Ansi> _ansiConverter;
};
}
#endif