Coverage for python/lsst/dax/apdb/factory.py: 15%

27 statements  

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1# This file is part of dax_apdb. 

2# 

3# Developed for the LSST Data Management System. 

4# This product includes software developed by the LSST Project 

5# (http://www.lsst.org). 

6# See the COPYRIGHT file at the top-level directory of this distribution 

7# for details of code ownership. 

8# 

9# This program is free software: you can redistribute it and/or modify 

10# it under the terms of the GNU General Public License as published by 

11# the Free Software Foundation, either version 3 of the License, or 

12# (at your option) any later version. 

13# 

14# This program is distributed in the hope that it will be useful, 

15# but WITHOUT ANY WARRANTY; without even the implied warranty of 

16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

17# GNU General Public License for more details. 

18# 

19# You should have received a copy of the GNU General Public License 

20# along with this program. If not, see <http://www.gnu.org/licenses/>. 

21 

22from __future__ import annotations 

23 

24__all__ = ["apdb_type", "make_apdb"] 

25 

26from typing import TYPE_CHECKING 

27 

28if TYPE_CHECKING: 

29 from .apdb import Apdb, ApdbConfig 

30 from .apdbReplica import ApdbReplica 

31 from .cassandra import ApdbCassandra 

32 from .sql import ApdbSql 

33 

34 

35def apdb_type(config: ApdbConfig) -> type[ApdbSql | ApdbCassandra]: 

36 """Return Apdb type on Apdb configuration. 

37 

38 Parameters 

39 ---------- 

40 config : `ApdbConfig` 

41 Configuration object, sub-class of ApdbConfig. 

42 

43 Returns 

44 ------- 

45 type : `type` [`Apdb`] 

46 Subclass of `Apdb` class. 

47 

48 Raises 

49 ------ 

50 TypeError 

51 Raised if type of ``config`` does not match any known types. 

52 """ 

53 from .cassandra import ApdbCassandra, ApdbCassandraConfig 

54 from .sql import ApdbSql, ApdbSqlConfig 

55 

56 if type(config) is ApdbSqlConfig: 

57 return ApdbSql 

58 elif type(config) is ApdbCassandraConfig: 

59 return ApdbCassandra 

60 raise TypeError(f"Unknown type of config object: {type(config)}") 

61 

62 

63def make_apdb(config: ApdbConfig) -> Apdb: 

64 """Create Apdb instance based on Apdb configuration. 

65 

66 Parameters 

67 ---------- 

68 config : `ApdbConfig` 

69 Configuration object, sub-class of ApdbConfig. 

70 

71 Returns 

72 ------- 

73 apdb : `Apdb` 

74 Instance of a specific Apdb sub-class. 

75 

76 Raises 

77 ------ 

78 TypeError 

79 Raised if type of ``config`` does not match any known types. 

80 """ 

81 from .cassandra import ApdbCassandra, ApdbCassandraConfig 

82 from .sql import ApdbSql, ApdbSqlConfig 

83 

84 if type(config) is ApdbSqlConfig: 

85 return ApdbSql(config) 

86 elif type(config) is ApdbCassandraConfig: 

87 return ApdbCassandra(config) 

88 raise TypeError(f"Unknown type of config object: {type(config)}") 

89 

90 

91def make_apdb_replica(config: ApdbConfig) -> ApdbReplica: 

92 """Create ApdbReplica instance based on Apdb configuration. 

93 

94 Parameters 

95 ---------- 

96 config : `ApdbConfig` 

97 Configuration object, sub-class of ApdbConfig. 

98 

99 Returns 

100 ------- 

101 apdb_replica : `ApdbReplica` 

102 Instance of a specific ApdbReplica sub-class. 

103 

104 Raises 

105 ------ 

106 TypeError 

107 Raised if type of ``config`` does not match any known types. 

108 """ 

109 from .cassandra import ApdbCassandra, ApdbCassandraConfig 

110 from .sql import ApdbSql, ApdbSqlConfig 

111 

112 if type(config) is ApdbSqlConfig: 

113 return ApdbSql(config).get_replica() 

114 elif type(config) is ApdbCassandraConfig: 

115 return ApdbCassandra(config).get_replica() 

116 raise TypeError(f"Unknown type of config object: {type(config)}")