| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #pragma once | ||
| 2 | |||
| 3 | #include "Object.h" | ||
| 4 | #include <mutex> | ||
| 5 | |||
| 6 | #ifdef USE_RCDB | ||
| 7 | #include <RCDB/Connection.h> | ||
| 8 | #endif | ||
| 9 | |||
| 10 | namespace iguana { | ||
| 11 | |||
| 12 | /// @brief RCDB reader | ||
| 13 | /// | ||
| 14 | /// This class interfaces to the RCDB. The database connection path is chosen from one of the following, in order: | ||
| 15 | /// - The global variable `iguana::GlobalRcdbUrl`; by default this is not set to any value (its type is `iguana::GlobalParam`) | ||
| 16 | /// - The environment variable `RCDB_CONNECTION` (which is likely set if you are on `ifarm`) | ||
| 17 | /// - A default URL, which will be printed in a warning; see `iguana::RCDBReader::m_default_url` | ||
| 18 | /// | ||
| 19 | /// RCDB will automatically use `mariadb` / `mysql` or `sqlite`, depending on the above RCDB database path, | ||
| 20 | /// and whether you have satisfied the dependencies. | ||
| 21 | class RCDBReader : public Object | ||
| 22 | { | ||
| 23 | |||
| 24 | public: | ||
| 25 | |||
| 26 | /// @param name the name of this reader | ||
| 27 | /// @param lev the log level | ||
| 28 | RCDBReader(std::string_view name = "rcdb", Logger::Level lev = Logger::DEFAULT_LEVEL); | ||
| 29 | |||
| 30 | /// @param runnum run number | ||
| 31 | /// @returns the beam energy in GeV | ||
| 32 | double GetBeamEnergy(int const runnum); | ||
| 33 | |||
| 34 | protected: | ||
| 35 | |||
| 36 | /// @brief default RCDB URL, used as a last resort | ||
| 37 | std::string const m_default_url = "mysql://rcdb@clasdb.jlab.org/rcdb"; | ||
| 38 | |||
| 39 | private: | ||
| 40 | |||
| 41 | std::string m_url; | ||
| 42 | std::once_flag m_error_once; | ||
| 43 | |||
| 44 | #ifdef USE_RCDB | ||
| 45 | std::unique_ptr<rcdb::Connection> m_rcdb_connection; | ||
| 46 | #endif | ||
| 47 | |||
| 48 | }; | ||
| 49 | } | ||
| 50 |