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include/db/meta_db.hpp

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+/*
+  Copyright <2018-2022> <scott.e.graves@protonmail.com>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+  associated documentation files (the "Software"), to deal in the Software without restriction,
+  including without limitation the rights to use, copy, modify, merge, publish, distribute,
+  sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all copies or
+  substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+  NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+  DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
+  OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+#ifndef INCLUDE_DB_META_DB_HPP_
+#define INCLUDE_DB_META_DB_HPP_
+
+#include "common.hpp"
+#include "app_config.hpp"
+#include "types/repertory.hpp"
+#include "utils/rocksdb_utils.hpp"
+
+namespace repertory {
+class meta_db final {
+public:
+  explicit meta_db(const app_config &config);
+
+public:
+  ~meta_db();
+
+private:
+  std::unique_ptr<rocksdb::DB> db_;
+  std::unique_ptr<rocksdb::ColumnFamilyHandle> default_family_;
+  std::unique_ptr<rocksdb::ColumnFamilyHandle> source_family_;
+  std::unique_ptr<rocksdb::ColumnFamilyHandle> keys_family_;
+  const std::string METADB_NAME = "meta_db";
+
+private:
+  api_error get_item_meta_json(const std::string &api_path, json &json_data) const;
+
+  void release_resources();
+
+public:
+  std::shared_ptr<rocksdb::Iterator> create_iterator(const bool &source_family);
+
+  api_error get_api_path_from_key(const std::string &key, std::string &api_path) const;
+
+  api_error get_api_path_from_source(const std::string &source_path, std::string &api_path) const;
+
+  api_error get_item_meta(const std::string &api_path, api_meta_map &meta) const;
+
+  api_error get_item_meta(const std::string &api_path, const std::string &key,
+                          std::string &value) const;
+
+  bool get_item_meta_exists(const std::string &api_path) const;
+
+  std::vector<std::string> get_pinned_files() const;
+
+  bool get_source_path_exists(const std::string &source_path) const;
+
+  void remove_item_meta(const std::string &api_path);
+
+  api_error remove_item_meta(const std::string &api_path, const std::string &key);
+
+  api_error rename_item_meta(const std::string &source_path, const std::string &from_api_path,
+                             const std::string &to_api_path);
+
+  api_error set_item_meta(const std::string &api_path, const std::string &key,
+                          const std::string &value);
+
+  api_error set_item_meta(const std::string &api_path, const api_meta_map &meta);
+
+  api_error set_source_path(const std::string &api_path, const std::string &source_path);
+};
+} // namespace repertory
+
+#endif // INCLUDE_DB_META_DB_HPP_