query_rest_sp.h

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/*
 Copyright (c) 2021, 2025, Oracle and/or its affiliates.
 
 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.
 
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 as designated in a particular file or component or in included license
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 This program is distributed in the hope that it will be useful,
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 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
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 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
#ifndef ROUTER_SRC_REST_MRS_SRC_MRS_DATABASE_QUERY_REST_SP_H_
#define ROUTER_SRC_REST_MRS_SRC_MRS_DATABASE_QUERY_REST_SP_H_
 
#include <memory>
#include <optional>
#include <string>
#include <vector>
 
#include "collector/counted_mysql_session.h"
#include "helper/mysql_column.h"
#include "mrs/database/entry/field.h"
#include "mrs/database/helper/query.h"
#include "mrs/database/json_template.h"
#include "mrs/gtid_manager.h"
#include "mysqlrouter/utils_sqlstring.h"
 
namespace mrs {
namespace database {
 
class QueryRestSP : private Query {
  using Row = Query::Row;
  using ResultSets = entry::ResultSets;
 
 public:
  explicit QueryRestSP(JsonTemplateFactory *factory = nullptr);
 
  virtual void query_entries(collector::CountedMySQLSession *session,
                             const std::string &schema,
                             const std::string &object, const std::string &url,
                             const std::string &ignore_column,
                             const mysqlrouter::sqlstring &values = {},
                             std::vector<MYSQL_BIND> pt = {},
                             const ResultSets &rs = {},
                             const JsonTemplateType type =
                                 JsonTemplateType::kObjectNestedOutParameters,
                             mrs::GtidManager *gtid_manager = nullptr);
 
  const char *get_sql_state();
  std::string response;
 
 protected:
  std::shared_ptr<JsonTemplate> create_template(JsonTemplateType type);
 
  bool items_started_{0};
  bool has_out_params_{false};
  uint64_t items_in_resultset_;
  uint64_t number_of_resultsets_;
  std::shared_ptr<JsonTemplate> response_template_;
  std::vector<helper::Column> columns_;
  std::string columns_items_type_;
  const char *ignore_column_{nullptr};
  std::string url_;
  const ResultSets *rs_{nullptr};
  uint32_t resultset_{0};
  JsonTemplateFactory *factory_{nullptr};
 
  void columns_set(unsigned number, MYSQL_FIELD *fields);
 
  void on_row(const ResultRow &r) override;
  void on_metadata(unsigned int number, MYSQL_FIELD *fields) override;
};
 
}  // namespace database
}  // namespace mrs
 
#endif  // ROUTER_SRC_REST_MRS_SRC_MRS_DATABASE_QUERY_REST_SP_H_