64 lines
1.9 KiB
Python
64 lines
1.9 KiB
Python
#!/usr/bin/env python
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# Copyright (c) 2016 Hewlett Packard Enterprise Development Company, L.P.
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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 logging
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import math
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import voluptuous
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import monasca_analytics.banana.typeck.type_util as type_util
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import monasca_analytics.component.params as params
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from monasca_analytics.voter import base
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logger = logging.getLogger(__name__)
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class PickIndexVoter(base.BaseVoter):
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def __init__(self, _id, _config):
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super(PickIndexVoter, self).__init__(_id, _config)
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self._index = _config["index"]
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self._index = 0
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@staticmethod
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def validate_config(_config):
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pick_schema = voluptuous.Schema({
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"module": voluptuous.And(
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basestring, lambda i: not any(c.isspace() for c in i)),
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"index": voluptuous.And(
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voluptuous.Or(float, int),
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lambda i: i >= 0 and math.ceil(i) == math.floor(i)
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)
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}, required=True)
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return pick_schema(_config)
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@staticmethod
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def get_default_config():
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return {
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"module": PickIndexVoter.__name__,
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"index": 0
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}
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@staticmethod
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def get_params():
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return [
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params.ParamDescriptor('index', type_util.Number(), 0),
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]
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def elect_structure(self, structures):
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return structures[
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min(len(structures) - 1,
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self._index)]
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