53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
# Copyright (C) 2014 Catalyst IT Ltd
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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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from decimal import Decimal
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import csv
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import logging as log
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class RatesManager(object):
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def __init__(self, config):
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self.config = config
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def rate(self, name, region=None):
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raise NotImplementedError("Not implemented in base class")
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class RatesFile(RatesManager):
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def __init__(self, config):
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super(RatesFile, self).__init__(config)
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try:
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with open(self.config['file']) as fh:
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# Makes no opinions on the file structure
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reader = csv.reader(fh, delimiter="|")
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self.__rates = {
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row[1].strip() : {
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'rate': Decimal(row[3].strip()),
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'region': row[0].strip(),
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'unit': row[2].strip()
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} for row in reader
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}
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except Exception as e:
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log.critical('Failed to load rates file: `%s`' % e)
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raise
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def rate(self, name, region=None):
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return {
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'rate': self.__rates[name]['rate'],
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'unit': self.__rates[name]['unit']
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}
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