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# Copyright 2017 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.
import threading
import grpc_testing
from grpc_testing import _common
from grpc_testing._server import _handler
from grpc_testing._server import _rpc
from grpc_testing._server import _server_rpc
from grpc_testing._server import _service
from grpc_testing._server import _servicer_context
def _implementation(descriptors_to_servicers, method_descriptor):
servicer = descriptors_to_servicers[method_descriptor.containing_service]
return getattr(servicer, method_descriptor.name)
def _unary_unary_service(request):
def service(implementation, rpc, servicer_context):
_service.unary_unary(implementation, rpc, request, servicer_context)
return service
def _unary_stream_service(request):
def service(implementation, rpc, servicer_context):
_service.unary_stream(implementation, rpc, request, servicer_context)
return service
def _stream_unary_service(handler):
def service(implementation, rpc, servicer_context):
_service.stream_unary(implementation, rpc, handler, servicer_context)
return service
def _stream_stream_service(handler):
def service(implementation, rpc, servicer_context):
_service.stream_stream(implementation, rpc, handler, servicer_context)
return service
class _Serverish(_common.Serverish):
def __init__(self, descriptors_to_servicers, time):
self._descriptors_to_servicers = descriptors_to_servicers
self._time = time
def _invoke(self, service_behavior, method_descriptor, handler,
invocation_metadata, deadline):
implementation = _implementation(self._descriptors_to_servicers,
method_descriptor)
rpc = _rpc.Rpc(handler, invocation_metadata)
if handler.add_termination_callback(rpc.extrinsic_abort):
servicer_context = _servicer_context.ServicerContext(
rpc, self._time, deadline)
service_thread = threading.Thread(
target=service_behavior,
args=(implementation, rpc, servicer_context,))
service_thread.start()
def invoke_unary_unary(self, method_descriptor, handler,
invocation_metadata, request, deadline):
self._invoke(
_unary_unary_service(request), method_descriptor, handler,
invocation_metadata, deadline)
def invoke_unary_stream(self, method_descriptor, handler,
invocation_metadata, request, deadline):
self._invoke(
_unary_stream_service(request), method_descriptor, handler,
invocation_metadata, deadline)
def invoke_stream_unary(self, method_descriptor, handler,
invocation_metadata, deadline):
self._invoke(
_stream_unary_service(handler), method_descriptor, handler,
invocation_metadata, deadline)
def invoke_stream_stream(self, method_descriptor, handler,
invocation_metadata, deadline):
self._invoke(
_stream_stream_service(handler), method_descriptor, handler,
invocation_metadata, deadline)
def _deadline_and_handler(requests_closed, time, timeout):
if timeout is None:
return None, _handler.handler_without_deadline(requests_closed)
else:
deadline = time.time() + timeout
handler = _handler.handler_with_deadline(requests_closed, time,
deadline)
return deadline, handler
class _Server(grpc_testing.Server):
def __init__(self, serverish, time):
self._serverish = serverish
self._time = time
def invoke_unary_unary(self, method_descriptor, invocation_metadata,
request, timeout):
deadline, handler = _deadline_and_handler(True, self._time, timeout)
self._serverish.invoke_unary_unary(
method_descriptor, handler, invocation_metadata, request, deadline)
return _server_rpc.UnaryUnaryServerRpc(handler)
def invoke_unary_stream(self, method_descriptor, invocation_metadata,
request, timeout):
deadline, handler = _deadline_and_handler(True, self._time, timeout)
self._serverish.invoke_unary_stream(
method_descriptor, handler, invocation_metadata, request, deadline)
return _server_rpc.UnaryStreamServerRpc(handler)
def invoke_stream_unary(self, method_descriptor, invocation_metadata,
timeout):
deadline, handler = _deadline_and_handler(False, self._time, timeout)
self._serverish.invoke_stream_unary(method_descriptor, handler,
invocation_metadata, deadline)
return _server_rpc.StreamUnaryServerRpc(handler)
def invoke_stream_stream(self, method_descriptor, invocation_metadata,
timeout):
deadline, handler = _deadline_and_handler(False, self._time, timeout)
self._serverish.invoke_stream_stream(method_descriptor, handler,
invocation_metadata, deadline)
return _server_rpc.StreamStreamServerRpc(handler)
def server_from_descriptor_to_servicers(descriptors_to_servicers, time):
return _Server(_Serverish(descriptors_to_servicers, time), time)
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