Coverage for manila/scheduler/filters/extra_specs_ops.py: 91%

1# Copyright (c) 2011 OpenStack Foundation. 

2# All Rights Reserved. 

3# 

4# Licensed under the Apache License, Version 2.0 (the "License"); you may 

5# not use this file except in compliance with the License. You may obtain 

6# a copy of the License at 

7# 

8# http://www.apache.org/licenses/LICENSE-2.0 

9# 

10# Unless required by applicable law or agreed to in writing, software 

11# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 

12# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 

13# License for the specific language governing permissions and limitations 

14# under the License. 

15 

16import operator 

17 

18from oslo_utils import strutils 

19 

20# 1. The following operations are supported: 

21# =, s==, s!=, s>=, s>, s<=, s<, <in>, <is>, <or>, ==, !=, >=, <= 

22# 2. Note that <or> is handled in a different way below. 

23# 3. If the first word in the extra_specs is not one of the operators, 

24# it is ignored. 

25_op_methods = {'=': lambda x, y: float(x) >= float(y), 

26 '<in>': lambda x, y: y in x, 

27 '<is>': lambda x, y: (strutils.bool_from_string(x) is 

28 strutils.bool_from_string(y)), 

29 '==': lambda x, y: float(x) == float(y), 

30 '!=': lambda x, y: float(x) != float(y), 

31 '>=': lambda x, y: float(x) >= float(y), 

32 '<=': lambda x, y: float(x) <= float(y), 

33 's==': operator.eq, 

34 's!=': operator.ne, 

35 's<': operator.lt, 

36 's<=': operator.le, 

37 's>': operator.gt, 

38 's>=': operator.ge} 

39 

40 

41def match(value, req): 

42 # Make case-insensitive 

43 if (isinstance(value, str)): 

44 value = value.lower() 

45 req = req.lower() 

46 words = req.split() 

47 

48 op = method = None 

49 if words: 49 ↛ 53line 49 didn't jump to line 53 because the condition on line 49 was always true

50 op = words.pop(0) 

51 method = _op_methods.get(op) 

52 

53 if op != '<or>' and not method: 

54 if type(value) is bool: 

55 return value == strutils.bool_from_string( 

56 req, strict=False, default=req) 

57 else: 

58 return value == req 

59 

60 if value is None: 60 ↛ 61line 60 didn't jump to line 61 because the condition on line 60 was never true

61 return False 

62 

63 if op == '<or>': # Ex: <or> v1 <or> v2 <or> v3 

64 while True: 

65 if words.pop(0) == value: 

66 return True 

67 if not words: 

68 break 

69 op = words.pop(0) # remove a keyword <or> 

70 if not words: 

71 break 

72 return False 

73 

74 try: 

75 if words and method(value, words[0]): 

76 return True 

77 except ValueError: 

78 pass 

79 

80 return False