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
  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 either included with
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  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 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_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 <shared_mutex>
#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_component.h"
#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);
 
  ~DbServiceEndpoint() override;
 
  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
  void update_content_set_data();
#endif
 
  DbServicePtr entry_;
  std::vector<HandlerPtr> url_handlers_;
  bool debug_enabled_ = false;
 
#ifdef HAVE_JIT_EXECUTOR_PLUGIN
  jit_executor::ServiceHandlerConfig jit_executor_config_;
  bool updated_jit_executor_config_ = false;
  std::unordered_map<std::string, std::string> content_set_paths_;
  std::shared_mutex content_set_path_mutex_;
  std::mutex m_scripting_context_mutex;
#endif
};
 
}  // namespace endpoint
}  // namespace mrs
 
#endif  // ROUTER_SRC_MYSQL_REST_SERVICE_SRC_MRS_ENDPOINT_DB_SERVICE_ENDPOINT_H_