43 lines
1.3 KiB
Python
43 lines
1.3 KiB
Python
# Copyright 2017 Internap.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from datetime import datetime
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from dateutil import parser
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import pytz
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from almanach.core import exception
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class DateHelper(object):
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@staticmethod
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def parse(value):
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try:
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dt = value if isinstance(value, datetime) else parser.parse(value)
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return DateHelper._normalize_timezone(dt)
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except (TypeError, ValueError):
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raise exception.DateFormatException()
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@staticmethod
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def is_within_range(d1, d2, delta):
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diff = (d2 - d1).total_seconds()
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return abs(diff) < delta
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@staticmethod
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def _normalize_timezone(dt):
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try:
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return dt.astimezone(pytz.utc)
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except ValueError:
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return dt.replace(tzinfo=pytz.utc)
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