| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_DOWNLOAD_INTERNAL_DOWNLOAD_STORE_H_ |
| #define COMPONENTS_DOWNLOAD_INTERNAL_DOWNLOAD_STORE_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "base/files/file_path.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "components/download/internal/store.h" |
| #include "components/leveldb_proto/proto_database.h" |
| |
| namespace protodb { |
| class Entry; |
| } // namespace protodb |
| |
| namespace download { |
| |
| // DownloadStore provides a layer around a LevelDB proto database that persists |
| // the download request, scheduling params and metadata to the disk. The data is |
| // read during initialization and presented to the caller after converting to |
| // Entry entries. |
| class DownloadStore : public Store { |
| public: |
| DownloadStore( |
| const base::FilePath& database_dir, |
| std::unique_ptr<leveldb_proto::ProtoDatabase<protodb::Entry>> db); |
| ~DownloadStore() override; |
| |
| // Store implementation. |
| bool IsInitialized() override; |
| void Initialize(InitCallback callback) override; |
| void HardRecover(StoreCallback callback) override; |
| void Update(const Entry& entry, StoreCallback callback) override; |
| void Remove(const std::string& guid, StoreCallback callback) override; |
| |
| private: |
| void OnDatabaseInited(InitCallback callback, bool success); |
| void OnDatabaseLoaded(InitCallback callback, |
| bool success, |
| std::unique_ptr<std::vector<protodb::Entry>> protos); |
| void OnDatabaseDestroyed(StoreCallback callback, bool success); |
| void OnDatabaseInitedAfterDestroy(StoreCallback callback, bool success); |
| |
| std::unique_ptr<leveldb_proto::ProtoDatabase<protodb::Entry>> db_; |
| base::FilePath database_dir_; |
| bool is_initialized_; |
| |
| base::WeakPtrFactory<DownloadStore> weak_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(DownloadStore); |
| }; |
| |
| } // namespace download |
| |
| #endif // COMPONENTS_DOWNLOAD_INTERNAL_DOWNLOAD_STORE_H_ |