71 lines
2.4 KiB
Python
71 lines
2.4 KiB
Python
# Copyright 2015 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.
|
|
"""Utilities for use with the base interface of RPC Framework."""
|
|
|
|
import collections
|
|
|
|
from grpc.framework.interfaces.base import base
|
|
|
|
|
|
class _Completion(base.Completion,
|
|
collections.namedtuple('_Completion', (
|
|
'terminal_metadata',
|
|
'code',
|
|
'message',
|
|
))):
|
|
"""A trivial implementation of base.Completion."""
|
|
|
|
|
|
class _Subscription(base.Subscription,
|
|
collections.namedtuple('_Subscription', (
|
|
'kind',
|
|
'termination_callback',
|
|
'allowance',
|
|
'operator',
|
|
'protocol_receiver',
|
|
))):
|
|
"""A trivial implementation of base.Subscription."""
|
|
|
|
|
|
_NONE_SUBSCRIPTION = _Subscription(base.Subscription.Kind.NONE, None, None,
|
|
None, None)
|
|
|
|
|
|
def completion(terminal_metadata, code, message):
|
|
"""Creates a base.Completion aggregating the given operation values.
|
|
|
|
Args:
|
|
terminal_metadata: A terminal metadata value for an operaton.
|
|
code: A code value for an operation.
|
|
message: A message value for an operation.
|
|
|
|
Returns:
|
|
A base.Completion aggregating the given operation values.
|
|
"""
|
|
return _Completion(terminal_metadata, code, message)
|
|
|
|
|
|
def full_subscription(operator, protocol_receiver):
|
|
"""Creates a "full" base.Subscription for the given base.Operator.
|
|
|
|
Args:
|
|
operator: A base.Operator to be used in an operation.
|
|
protocol_receiver: A base.ProtocolReceiver to be used in an operation.
|
|
|
|
Returns:
|
|
A base.Subscription of kind base.Subscription.Kind.FULL wrapping the given
|
|
base.Operator and base.ProtocolReceiver.
|
|
"""
|
|
return _Subscription(base.Subscription.Kind.FULL, None, None, operator,
|
|
protocol_receiver)
|