104 lines
3.4 KiB
Python
104 lines
3.4 KiB
Python
|
# Copyright 2016 gRPC authors.
|
||
|
|
#
|
||
|
|
# 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.
|
||
|
|
"""Shared implementation."""
|
||
|
|
|
||
|
|
import logging
|
||
|
|
|
||
|
|
import six
|
||
|
|
|
||
|
|
import grpc
|
||
|
|
from grpc._cython import cygrpc
|
||
|
|
|
||
|
|
_LOGGER = logging.getLogger(__name__)
|
||
|
|
|
||
|
|
CYGRPC_CONNECTIVITY_STATE_TO_CHANNEL_CONNECTIVITY = {
|
||
|
|
cygrpc.ConnectivityState.idle:
|
||
|
|
grpc.ChannelConnectivity.IDLE,
|
||
|
|
cygrpc.ConnectivityState.connecting:
|
||
|
|
grpc.ChannelConnectivity.CONNECTING,
|
||
|
|
cygrpc.ConnectivityState.ready:
|
||
|
|
grpc.ChannelConnectivity.READY,
|
||
|
|
cygrpc.ConnectivityState.transient_failure:
|
||
|
|
grpc.ChannelConnectivity.TRANSIENT_FAILURE,
|
||
|
|
cygrpc.ConnectivityState.shutdown:
|
||
|
|
grpc.ChannelConnectivity.SHUTDOWN,
|
||
|
|
}
|
||
|
|
|
||
|
|
CYGRPC_STATUS_CODE_TO_STATUS_CODE = {
|
||
|
|
cygrpc.StatusCode.ok: grpc.StatusCode.OK,
|
||
|
|
cygrpc.StatusCode.cancelled: grpc.StatusCode.CANCELLED,
|
||
|
|
cygrpc.StatusCode.unknown: grpc.StatusCode.UNKNOWN,
|
||
|
|
cygrpc.StatusCode.invalid_argument: grpc.StatusCode.INVALID_ARGUMENT,
|
||
|
|
cygrpc.StatusCode.deadline_exceeded: grpc.StatusCode.DEADLINE_EXCEEDED,
|
||
|
|
cygrpc.StatusCode.not_found: grpc.StatusCode.NOT_FOUND,
|
||
|
|
cygrpc.StatusCode.already_exists: grpc.StatusCode.ALREADY_EXISTS,
|
||
|
|
cygrpc.StatusCode.permission_denied: grpc.StatusCode.PERMISSION_DENIED,
|
||
|
|
cygrpc.StatusCode.unauthenticated: grpc.StatusCode.UNAUTHENTICATED,
|
||
|
|
cygrpc.StatusCode.resource_exhausted: grpc.StatusCode.RESOURCE_EXHAUSTED,
|
||
|
|
cygrpc.StatusCode.failed_precondition: grpc.StatusCode.FAILED_PRECONDITION,
|
||
|
|
cygrpc.StatusCode.aborted: grpc.StatusCode.ABORTED,
|
||
|
|
cygrpc.StatusCode.out_of_range: grpc.StatusCode.OUT_OF_RANGE,
|
||
|
|
cygrpc.StatusCode.unimplemented: grpc.StatusCode.UNIMPLEMENTED,
|
||
|
|
cygrpc.StatusCode.internal: grpc.StatusCode.INTERNAL,
|
||
|
|
cygrpc.StatusCode.unavailable: grpc.StatusCode.UNAVAILABLE,
|
||
|
|
cygrpc.StatusCode.data_loss: grpc.StatusCode.DATA_LOSS,
|
||
|
|
}
|
||
|
|
STATUS_CODE_TO_CYGRPC_STATUS_CODE = {
|
||
|
|
grpc_code: cygrpc_code
|
||
|
|
for cygrpc_code, grpc_code in six.iteritems(
|
||
|
|
CYGRPC_STATUS_CODE_TO_STATUS_CODE)
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
def encode(s):
|
||
|
|
if isinstance(s, bytes):
|
||
|
|
return s
|
||
|
|
else:
|
||
|
|
return s.encode('ascii')
|
||
|
|
|
||
|
|
|
||
|
|
def decode(b):
|
||
|
|
if isinstance(b, str):
|
||
|
|
return b
|
||
|
|
else:
|
||
|
|
try:
|
||
|
|
return b.decode('utf8')
|
||
|
|
except UnicodeDecodeError:
|
||
|
|
_LOGGER.exception('Invalid encoding on %s', b)
|
||
|
|
return b.decode('latin1')
|
||
|
|
|
||
|
|
|
||
|
|
def _transform(message, transformer, exception_message):
|
||
|
|
if transformer is None:
|
||
|
|
return message
|
||
|
|
else:
|
||
|
|
try:
|
||
|
|
return transformer(message)
|
||
|
|
except Exception: # pylint: disable=broad-except
|
||
|
|
_LOGGER.exception(exception_message)
|
||
|
|
return None
|
||
|
|
|
||
|
|
|
||
|
|
def serialize(message, serializer):
|
||
|
|
return _transform(message, serializer, 'Exception serializing message!')
|
||
|
|
|
||
|
|
|
||
|
|
def deserialize(serialized_message, deserializer):
|
||
|
|
return _transform(serialized_message, deserializer,
|
||
|
|
'Exception deserializing message!')
|
||
|
|
|
||
|
|
|
||
|
|
def fully_qualified_method(group, method):
|
||
|
|
return '/{}/{}'.format(group, method)
|