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60 lines
2.3 KiB
C++
60 lines
2.3 KiB
C++
#pragma once
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#include <Backups/IBackupCoordination.h>
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#include <Backups/BackupCoordinationHelpers.h>
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#include <map>
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#include <mutex>
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namespace Poco { class Logger; }
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namespace DB
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{
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/// Stores backup contents information in memory.
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class BackupCoordinationLocal : public IBackupCoordination
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{
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public:
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BackupCoordinationLocal();
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~BackupCoordinationLocal() override;
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void addReplicatedTableDataPath(const String & table_zk_path, const String & table_data_path) override;
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void addReplicatedTablePartNames(
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const String & host_id,
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const DatabaseAndTableName & table_name,
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const String & table_zk_path,
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const std::vector<PartNameAndChecksum> & part_names_and_checksums) override;
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void finishPreparing(const String & host_id, const String & error_message) override;
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void waitForAllHostsPrepared(const Strings & host_ids, std::chrono::seconds timeout) const override;
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Strings getReplicatedTableDataPaths(const String & table_zk_path) const override;
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Strings getReplicatedTablePartNames(const String & host_id, const DatabaseAndTableName & table_name, const String & table_zk_path) const override;
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void addFileInfo(const FileInfo & file_info, bool & is_data_file_required) override;
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void updateFileInfo(const FileInfo & file_info) override;
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std::vector<FileInfo> getAllFileInfos() const override;
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Strings listFiles(const String & prefix, const String & terminator) const override;
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std::optional<FileInfo> getFileInfo(const String & file_name) const override;
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std::optional<FileInfo> getFileInfo(const SizeAndChecksum & size_and_checksum) const override;
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std::optional<SizeAndChecksum> getFileSizeAndChecksum(const String & file_name) const override;
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String getNextArchiveSuffix() override;
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Strings getAllArchiveSuffixes() const override;
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private:
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mutable std::mutex mutex;
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BackupCoordinationReplicatedTablesInfo replicated_tables;
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std::map<String /* file_name */, SizeAndChecksum> file_names; /// Should be ordered alphabetically, see listFiles(). For empty files we assume checksum = 0.
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std::map<SizeAndChecksum, FileInfo> file_infos; /// Information about files. Without empty files.
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Strings archive_suffixes;
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size_t current_archive_suffix = 0;
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const Poco::Logger * log;
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};
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}
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