db_service_endpoint.h

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/*
  Copyright (c) 2024, 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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  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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*/
 
#ifndef ROUTER_SRC_MYSQL_REST_SERVICE_SRC_MRS_ENDPOINT_DB_SERVICE_ENDPOINT_H_
#define ROUTER_SRC_MYSQL_REST_SERVICE_SRC_MRS_ENDPOINT_DB_SERVICE_ENDPOINT_H_
 
#include <memory>
#include <string>
#include <unordered_map>
 
#ifdef HAVE_JIT_EXECUTOR_PLUGIN
#include <mutex>
#endif
 
#include "mrs/database/entry/db_service.h"
#include "mrs/endpoint/option_endpoint.h"
#include "mrs/interface/handler_factory.h"
 
#ifdef HAVE_JIT_EXECUTOR_PLUGIN
#include "mysqlrouter/jit_executor_context_handle.h"
#endif
 
namespace mrs {
 
namespace file_system {
class DbServiceFileSystem;
}
namespace endpoint {
 
class UrlHostEndpoint;
 
class DbServiceEndpoint : public OptionEndpoint {
 public:
  using Parent = OptionEndpoint;
  using DbService = mrs::database::entry::DbService;
  using DbServicePtr = std::shared_ptr<DbService>;
  using HandlerFactoryPtr = std::shared_ptr<mrs::interface::HandlerFactory>;
  using DataType = DbService;
 
 public:
  DbServiceEndpoint(const DbService &entry,
                    EndpointConfigurationPtr configuration,
                    HandlerFactoryPtr factory);
 
  UniversalId get_id() const override;
  UniversalId get_parent_id() const override;
  Uri get_url() const override;
  std::optional<std::string> get_options() const override;
 
  const DbServicePtr get() const;
  void set(const DbService &entry, EndpointBasePtr parent);
 
  void set_debug_enabled(bool value);
  bool is_debug_enabled() const;
  void on_updated_content_set();
 
#ifdef HAVE_JIT_EXECUTOR_PLUGIN
  std::shared_ptr<jit_executor::IContextHandle> get_scripting_context();
  std::string get_content_set_path(const std::string &module_class_name);
#endif
 
 private:
  void update() override;
  void activate_public() override;
  void deactivate() override;
  std::string get_extra_update_data() override;
  EnabledType get_this_node_enabled_level() const override;
  std::string get_my_url_path_part() const override;
  std::string get_my_url_part() const override;
  bool does_this_node_require_authentication() const override;
 
#ifdef HAVE_JIT_EXECUTOR_PLUGIN
  std::shared_ptr<file_system::DbServiceFileSystem> get_file_system();
  bool get_content_set_data();
#endif
 
  DbServicePtr entry_;
  std::vector<HandlerPtr> url_handlers_;
  bool debug_enabled_ = false;
 
#ifdef HAVE_JIT_EXECUTOR_PLUGIN
  std::shared_ptr<file_system::DbServiceFileSystem> file_system_;
  std::optional<std::vector<std::string>> content_set_scripts_;
  std::unordered_map<std::string, std::string> content_set_paths_;
  std::mutex m_scripting_context_mutex;
#endif
};
 
}  // namespace endpoint
}  // namespace mrs
 
#endif  // ROUTER_SRC_MYSQL_REST_SERVICE_SRC_MRS_ENDPOINT_DB_SERVICE_ENDPOINT_H_