46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
# Copyright 2016 Sam Yaple
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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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import abc
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import six
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@six.add_metaclass(abc.ABCMeta)
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class BaseImage(object):
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"""Base class for Image drivers
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:params image_location: Location of device or file to image
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"""
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def __init__(self, image_location):
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self.image_location = image_location
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@abc.abstractmethod
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def get_data(self, reads):
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"""Get data from backing device or file
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:params reads: A list of tuples with the start sector and size of read
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:returns: An interable of tuples with start sector and data
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"""
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raise NotImplementedError()
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@abc.abstractmethod
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def get_size(self):
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"""Get size of disk to backup
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:returns: Size of disk in bytes
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"""
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raise NotImplementedError()
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