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# Copyright 2016 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-3+ =*=
import obnamlib
class LeafStoreInterface(object): # pragma: no cover
def put_leaf(self, leaf):
raise NotImplementedError()
def get_leaf(self, leaf_id):
raise NotImplementedError()
def flush(self):
raise NotImplementedError()
class InMemoryLeafStore(LeafStoreInterface):
def __init__(self):
self._leaves = {}
self._counter = 0
def put_leaf(self, leaf):
self._counter += 1
self._leaves[self._counter] = leaf
return self._counter
def get_leaf(self, leaf_id):
return self._leaves.get(leaf_id, None)
def flush(self):
pass
class LeafStore(LeafStoreInterface): # pragma: no cover
def __init__(self):
self._blob_store = None
def set_blob_store(self, blob_store):
self._blob_store = blob_store
def put_leaf(self, leaf):
return self._blob_store.put_blob(leaf.as_dict())
def get_leaf(self, leaf_id):
leaf = obnamlib.CowLeaf()
leaf.from_dict(self._blob_store.get_blob(leaf_id))
return leaf
def flush(self):
self._blob_store.flush()
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