storage/kv_engine/engine_selector.h
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #pragma once | ||
| 2 | |||
| 3 | #include <set> | ||
| 4 | #include <stdexcept> | ||
| 5 | #include <string> | ||
| 6 | |||
| 7 | #include "base_kv.h" | ||
| 8 | |||
| 9 | namespace base { | ||
| 10 | |||
| 11 | struct EngineResolved { | ||
| 12 | std::string engine; | ||
| 13 | BaseKVConfig cfg; | ||
| 14 | }; | ||
| 15 | |||
| 16 | 1064 | inline EngineResolved ResolveEngine(BaseKVConfig cfg) { | |
| 17 | 1064 | auto& j = cfg.json_config_; | |
| 18 | |||
| 19 |
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1064 | if (j.contains("external_engine_type")) { |
| 20 |
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2 | throw std::invalid_argument( |
| 21 | 4 | "external_engine_type is removed; use engine_type"); | |
| 22 | } | ||
| 23 | const std::string engine = | ||
| 24 |
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1062 | j.contains("engine_type") |
| 25 |
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1028 | ? j.at("engine_type").get<std::string>() |
| 26 |
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2090 | : "KVEngineComposite"; |
| 27 | static const std::set<std::string> kKnownEngines = { | ||
| 28 | "KVEngineComposite", | ||
| 29 | "KVEnginePetKV", | ||
| 30 | "KVEngineFasterKV", | ||
| 31 | "KVEngineHPSHashMap", | ||
| 32 | "KVEngineHPSRocksDB", | ||
| 33 |
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1102 | }; |
| 34 |
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1062 | if (!kKnownEngines.count(engine)) { |
| 35 |
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2 | throw std::invalid_argument("unknown engine_type: " + engine); |
| 36 | } | ||
| 37 | |||
| 38 |
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2120 | return EngineResolved{engine, std::move(cfg)}; |
| 39 | 1062 | } | |
| 40 | |||
| 41 | } // namespace base | ||
| 42 |