// Jubatus: Online machine learning framework for distributed environment
// Copyright (C) 2011 Preferred Networks and Nippon Telegraph and Telephone Corporation.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License version 2.1 as published by the Free Software Foundation.
//
// 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

#ifndef JUBATUS_CORE_FV_CONVERTER_JSON_CONVERTER_HPP_
#define JUBATUS_CORE_FV_CONVERTER_JSON_CONVERTER_HPP_

namespace jubatus {
namespace util {
namespace text {
namespace json {
class json;
}  // namespace json
}  // namespace text
}  // namespace util

namespace core {
namespace fv_converter {

struct datum;

class json_converter {
 public:
  static const char* NULL_STRING;

  static void convert(
      const jubatus::util::text::json::json& jason,
      datum& ret_datum);
};

}  // namespace fv_converter
}  // namespace core
}  // namespace jubatus

#endif  // JUBATUS_CORE_FV_CONVERTER_JSON_CONVERTER_HPP_
