text: /*
   * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License, version 2.0,
   * as published by the Free Software Foundation.
   *
   * This program is also distributed with certain software (including
   * but not limited to OpenSSL) that is licensed under separate terms,
   * as designated in a particular file or component or in included license
   * documentation.  The authors of MySQL hereby grant you an additional
   * permission to link the program and your derivative works with the
   * separately licensed software that they have included with MySQL.
   *
   * This program 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, version 2.0, for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
   */
  
  #ifndef PLUGIN_X_SRC_PREPARE_PARAM_HANDLER_H_
  #define PLUGIN_X_SRC_PREPARE_PARAM_HANDLER_H_
  
  #include <array>
  #include <cinttypes>
  #include <vector>
  
  #include "mysql/com_data.h"
  #include "plugin/x/ngs/include/ngs/error_code.h"
  #include "plugin/x/ngs/include/ngs/protocol/protocol_protobuf.h"
  
  namespace xpl {
  
  struct Placeholder_info {
    enum class Type { k_raw = 0, k_json };
    using Id = uint32_t;
    Placeholder_info(const Id id,
                     const Type type = Type::k_raw)  // NOLINT(runtime/explicit)
        : m_id(id), m_type(type) {}
    bool operator==(const Placeholder_info &other) const {
      return m_type == other.m_type && m_id == other.m_id;
    }
    Id m_id{0};
    Type m_type{Type::k_raw};
  };
  
  class Prepare_param_handler {
   public:
    using Arg_list = google::protobuf::RepeatedPtrField<Mysqlx::Datatypes::Any>;
    using Placeholder_list = std::vector<Placeholder_info>;
    using Param_list = std::vector<PS_PARAM>;
    using Param_value = std::array<unsigned char, 18>;
    using Param_value_list = std::vector<Param_value>;
    using Param_svalue_list = std::vector<std::string>;
  
    explicit Prepare_param_handler(const Placeholder_list &phs)
        : m_placeholders(phs) {}
  
    ngs::Error_code prepare_parameters(const Arg_list &args);
    ngs::Error_code check_argument_placeholder_consistency(
        const Arg_list::size_type args_size, const uint32_t args_offset) const;
  
    const Param_list &get_params() const { return m_params; }
    const Param_value_list &get_values() const { return m_param_values; }
    const Param_svalue_list &get_string_values() const { return m_string_values; }
  
   private:
    Prepare_param_handler(const Prepare_param_handler &) = delete;
    Prepare_param_handler &operator=(const Prepare_param_handler &) = delete;
  
    const Placeholder_list &m_placeholders;
    Param_list m_params;
    Param_value_list m_param_values;
    Param_svalue_list m_string_values;
  };
  
  }  // namespace xpl
  
  #endif  // PLUGIN_X_SRC_PREPARE_PARAM_HANDLER_H_
  