stacktach-shoebox/shoebox/roll_checker.py

53 lines
1.5 KiB
Python

# Copyright (c) 2014 Dark Secret Software Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import utils
class RollChecker(object):
def start(self, archive):
"""Called when a new archive is selected."""
pass
def check(self, archive): # pragma: no cover
"""Should the current archive roll?"""
pass
class NeverRollChecker(RollChecker):
def check(self, archive):
return False
class TimeRollChecker(RollChecker):
def __init__(self, timedelta):
self.timedelta = timedelta
def start(self, archive):
self.start_time = utils.now()
self.end_time = self.start_time + self.timedelta
def check(self, archive):
return utils.now() >= self.end_time
class SizeRollChecker(RollChecker):
def __init__(self, size_in_gb):
self.size_in_gb = size_in_gb
def check(self, archive):
size = archive._get_file_handle().tell()
return size / 1073741824 >= self.size_in_gb