e97f08bb07
Ironic needs to do some capability matching that has feature parity with Nova's capability matching. Rather than trying to re-create it ourselves, move Nova's matching code into oslo.utils so that we make sure it's always the same. Also has small modifications to handle pep8 complaints in oslo.utils, renaming the file and test names to be more generalized, and to use oslotest instead of nova.test. Change-Id: I3b70afdf1479b6649feac509b794d04fc5836194
70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
# Copyright (c) 2011 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import operator
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# 1. The following operations are supported:
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# =, s==, s!=, s>=, s>, s<=, s<, <in>, <all-in>, <or>, ==, !=, >=, <=
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# 2. Note that <or> is handled in a different way below.
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# 3. If the first word in the extra_specs is not one of the operators,
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# it is ignored.
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op_methods = {
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'=': lambda x, y: float(x) >= float(y),
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'<in>': lambda x, y: y in x,
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'<all-in>': lambda x, y: all(val in x for val in y),
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'==': lambda x, y: float(x) == float(y),
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'!=': lambda x, y: float(x) != float(y),
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'>=': lambda x, y: float(x) >= float(y),
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'<=': lambda x, y: float(x) <= float(y),
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's==': operator.eq,
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's!=': operator.ne,
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's<': operator.lt,
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's<=': operator.le,
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's>': operator.gt,
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's>=': operator.ge
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}
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def match(value, req):
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words = req.split()
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op = method = None
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if words:
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op = words.pop(0)
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method = op_methods.get(op)
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if op != '<or>' and not method:
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return value == req
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if value is None:
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return False
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if op == '<or>': # Ex: <or> v1 <or> v2 <or> v3
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while True:
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if words.pop(0) == value:
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return True
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if not words:
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break
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words.pop(0) # remove a keyword <or>
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if not words:
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break
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return False
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if words:
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if op == '<all-in>': # requires a list not a string
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return method(value, words)
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return method(value, words[0])
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return False
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