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# Copyright 2021-2023 H2020 TeraFlow (https://www.teraflow-h2020.eu/)
#
# 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 grpc, logging
from typing import Optional
from common.Constants import DEFAULT_CONTEXT_UUID
from common.proto.context_pb2 import Slice, SliceId
from context.client.ContextClient import ContextClient
LOGGER = logging.getLogger(__name__)
def get_slice(
context_client : ContextClient, slice_uuid : str, context_uuid : str = DEFAULT_CONTEXT_UUID,
rw_copy : bool = False
) -> Optional[Slice]:
try:
# pylint: disable=no-member
slice_id = SliceId()
slice_id.context_id.context_uuid.uuid = context_uuid
slice_id.slice_uuid.uuid = slice_uuid
ro_slice = context_client.GetSlice(slice_id)
if not rw_copy: return ro_slice
rw_slice = Slice()
rw_slice.CopyFrom(ro_slice)
return rw_slice
except grpc.RpcError:
#LOGGER.exception('Unable to get slice({:s} / {:s})'.format(str(context_uuid), str(slice_uuid)))
return None