2014-05-26 10:41:40 +00:00
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#pragma once
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2017-08-14 18:16:11 +00:00
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#include <Storages/MergeTree/MergeTreePartInfo.h>
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2016-05-28 10:15:36 +00:00
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#include <mutex>
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2015-09-29 19:19:54 +00:00
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#include <common/DateLUT.h>
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2017-04-01 09:19:00 +00:00
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#include <Core/Types.h>
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2017-08-15 11:59:08 +00:00
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#include <map>
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2014-05-26 10:41:40 +00:00
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2017-04-18 20:38:07 +00:00
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2014-05-26 10:41:40 +00:00
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namespace DB
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{
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2017-04-16 15:00:33 +00:00
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/** Supports multiple names of active parts of data.
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* Repeats part of the MergeTreeData functionality.
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* TODO: generalize with MergeTreeData. It is possible to leave this class approximately as is and use it from MergeTreeData.
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* Then in MergeTreeData you can make map<String, DataPartPtr> data_parts and all_data_parts.
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2014-05-26 10:41:40 +00:00
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*/
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class ActiveDataPartSet
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{
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public:
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2017-08-25 20:41:45 +00:00
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ActiveDataPartSet(MergeTreeDataFormatVersion format_version_) : format_version(format_version_) {}
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ActiveDataPartSet(MergeTreeDataFormatVersion format_version_, const Strings & names);
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2014-10-10 00:46:37 +00:00
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2017-04-01 07:20:54 +00:00
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void add(const String & name);
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2014-10-13 17:28:59 +00:00
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2017-04-16 15:00:33 +00:00
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/// If not found, returns an empty string.
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2017-04-01 07:20:54 +00:00
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String getContainingPart(const String & name) const;
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2014-05-26 18:14:52 +00:00
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2017-08-14 18:16:11 +00:00
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Strings getParts() const; /// In ascending order of the partition_id and block number.
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2014-08-08 08:28:13 +00:00
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2017-04-01 07:20:54 +00:00
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size_t size() const;
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2014-05-26 10:41:40 +00:00
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private:
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2017-08-25 20:41:45 +00:00
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MergeTreeDataFormatVersion format_version;
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2017-04-01 07:20:54 +00:00
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mutable std::mutex mutex;
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2017-08-15 11:59:08 +00:00
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std::map<MergeTreePartInfo, String> part_info_to_name;
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2014-10-10 00:46:37 +00:00
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2017-04-16 15:00:33 +00:00
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/// Do not block mutex.
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2017-04-01 07:20:54 +00:00
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void addImpl(const String & name);
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2017-08-15 11:59:08 +00:00
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String getContainingPartImpl(const MergeTreePartInfo & part_info) const;
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2014-05-26 10:41:40 +00:00
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};
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}
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