query_factory_proxy.h

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/*
  Copyright (c) 2022, 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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  the program or referenced in the documentation.
 
  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_FACTORY_PROXY_H_
#define ROUTER_SRC_REST_MRS_SRC_MRS_DATABASE_QUERY_FACTORY_PROXY_H_
 
#include <memory>
#include <shared_mutex>
 
#include "mrs/database/query_factory.h"
#include "mrs/interface/query_monitor_factory.h"
 
namespace mrs {
namespace database {
 
class QueryFactoryProxy : public mrs::interface::QueryFactory {
 public:
  using QueryFactoryPtr = std::shared_ptr<mrs::interface::QueryFactory>;
  using QueryMonitorFactory = mrs::interface::QueryMonitorFactory;
 
 public:
  QueryFactoryProxy(QueryFactoryPtr subject) : subject_{subject} {}
 
  void change_subject(QueryFactoryPtr subject) {
    auto lock = std::unique_lock(mutex_);
    subject_ = subject;
  }
 
  std::shared_ptr<QueryAuditLogEntries> create_query_audit_log() override {
    auto lock = std::shared_lock(mutex_);
    return subject_->create_query_audit_log();
  }
 
  std::shared_ptr<QueryEntriesAuthPrivileges> create_query_auth_privileges()
      override {
    auto lock = std::shared_lock(mutex_);
    return subject_->create_query_auth_privileges();
  }
 
  std::shared_ptr<QueryEntryContentFile> create_query_content_file() override {
    auto lock = std::shared_lock(mutex_);
    return subject_->create_query_content_file();
  }
 
  std::shared_ptr<QueryRestSPMedia> create_query_sp_media() override {
    auto lock = std::shared_lock(mutex_);
    return subject_->create_query_sp_media();
  }
 
  std::shared_ptr<QueryEntryGroupRowSecurity> create_query_group_row_security()
      override {
    auto lock = std::shared_lock(mutex_);
    return subject_->create_query_group_row_security();
  }
  std::shared_ptr<QueryEntryAuthUser> create_query_auth_user() override {
    auto lock = std::shared_lock(mutex_);
    return subject_->create_query_auth_user();
  }
 
  std::shared_ptr<QueryEntryObject> create_query_object() override {
    auto lock = std::shared_lock(mutex_);
    return subject_->create_query_object();
  }
 
  std::shared_ptr<QueryUserGroups> create_query_user_groups() override {
    auto lock = std::shared_lock(mutex_);
    return subject_->create_query_user_groups();
  }
 
  std::shared_ptr<QueryRestTable> create_query_table() override {
    auto lock = std::shared_lock(mutex_);
    return subject_->create_query_table();
  }
 
  std::shared_ptr<QueryRestTableSingleRow> create_query_table_single_row(
      bool encode_bigints_as_string) override {
    auto lock = std::shared_lock(mutex_);
    return subject_->create_query_table_single_row(encode_bigints_as_string);
  }
 
  std::shared_ptr<QueryRestSP> create_query_sp() override {
    auto lock = std::shared_lock(mutex_);
    return subject_->create_query_sp();
  }
 
  std::shared_ptr<database::QueryEntryFields> create_query_fields() override {
    auto lock = std::shared_lock(mutex_);
    return subject_->create_query_fields();
  }
 
 private:
  std::shared_mutex mutex_;
  QueryFactoryPtr subject_;
};
 
}  // namespace database
}  // namespace mrs
 
#endif  // ROUTER_SRC_REST_MRS_SRC_MRS_DATABASE_QUERY_FACTORY_PROXY_H_