Added delete option to database storage.
This commit is contained in:
parent
308604a33c
commit
963b5bc68b
1868 changed files with 192402 additions and 13278 deletions
13
venv/Lib/site-packages/grpc/framework/interfaces/__init__.py
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venv/Lib/site-packages/grpc/framework/interfaces/__init__.py
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# Copyright 2015 gRPC authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Copyright 2015 gRPC authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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330
venv/Lib/site-packages/grpc/framework/interfaces/base/base.py
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venv/Lib/site-packages/grpc/framework/interfaces/base/base.py
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# Copyright 2015 gRPC authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""The base interface of RPC Framework.
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Implementations of this interface support the conduct of "operations":
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exchanges between two distinct ends of an arbitrary number of data payloads
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and metadata such as a name for the operation, initial and terminal metadata
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in each direction, and flow control. These operations may be used for transfers
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of data, remote procedure calls, status indication, or anything else
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applications choose.
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"""
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# threading is referenced from specification in this module.
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import abc
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import enum
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import threading # pylint: disable=unused-import
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import six
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# abandonment is referenced from specification in this module.
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from grpc.framework.foundation import abandonment # pylint: disable=unused-import
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# pylint: disable=too-many-arguments
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class NoSuchMethodError(Exception):
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"""Indicates that an unrecognized operation has been called.
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Attributes:
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code: A code value to communicate to the other side of the operation
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along with indication of operation termination. May be None.
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details: A details value to communicate to the other side of the
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operation along with indication of operation termination. May be None.
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"""
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def __init__(self, code, details):
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"""Constructor.
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Args:
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code: A code value to communicate to the other side of the operation
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along with indication of operation termination. May be None.
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details: A details value to communicate to the other side of the
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operation along with indication of operation termination. May be None.
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"""
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super(NoSuchMethodError, self).__init__()
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self.code = code
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self.details = details
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class Outcome(object):
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"""The outcome of an operation.
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Attributes:
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kind: A Kind value coarsely identifying how the operation terminated.
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code: An application-specific code value or None if no such value was
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provided.
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details: An application-specific details value or None if no such value was
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provided.
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"""
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@enum.unique
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class Kind(enum.Enum):
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"""Ways in which an operation can terminate."""
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COMPLETED = 'completed'
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CANCELLED = 'cancelled'
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EXPIRED = 'expired'
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LOCAL_SHUTDOWN = 'local shutdown'
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REMOTE_SHUTDOWN = 'remote shutdown'
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RECEPTION_FAILURE = 'reception failure'
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TRANSMISSION_FAILURE = 'transmission failure'
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LOCAL_FAILURE = 'local failure'
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REMOTE_FAILURE = 'remote failure'
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class Completion(six.with_metaclass(abc.ABCMeta)):
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"""An aggregate of the values exchanged upon operation completion.
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Attributes:
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terminal_metadata: A terminal metadata value for the operaton.
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code: A code value for the operation.
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message: A message value for the operation.
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"""
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class OperationContext(six.with_metaclass(abc.ABCMeta)):
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"""Provides operation-related information and action."""
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@abc.abstractmethod
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def outcome(self):
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"""Indicates the operation's outcome (or that the operation is ongoing).
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Returns:
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None if the operation is still active or the Outcome value for the
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operation if it has terminated.
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"""
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raise NotImplementedError()
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@abc.abstractmethod
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def add_termination_callback(self, callback):
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"""Adds a function to be called upon operation termination.
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Args:
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callback: A callable to be passed an Outcome value on operation
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termination.
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Returns:
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None if the operation has not yet terminated and the passed callback will
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later be called when it does terminate, or if the operation has already
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terminated an Outcome value describing the operation termination and the
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passed callback will not be called as a result of this method call.
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"""
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raise NotImplementedError()
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@abc.abstractmethod
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def time_remaining(self):
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"""Describes the length of allowed time remaining for the operation.
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Returns:
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A nonnegative float indicating the length of allowed time in seconds
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remaining for the operation to complete before it is considered to have
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timed out. Zero is returned if the operation has terminated.
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"""
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raise NotImplementedError()
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@abc.abstractmethod
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def cancel(self):
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"""Cancels the operation if the operation has not yet terminated."""
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raise NotImplementedError()
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@abc.abstractmethod
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def fail(self, exception):
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"""Indicates that the operation has failed.
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Args:
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exception: An exception germane to the operation failure. May be None.
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"""
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raise NotImplementedError()
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class Operator(six.with_metaclass(abc.ABCMeta)):
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"""An interface through which to participate in an operation."""
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@abc.abstractmethod
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def advance(self,
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initial_metadata=None,
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payload=None,
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completion=None,
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allowance=None):
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"""Progresses the operation.
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Args:
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initial_metadata: An initial metadata value. Only one may ever be
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communicated in each direction for an operation, and they must be
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communicated no later than either the first payload or the completion.
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payload: A payload value.
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completion: A Completion value. May only ever be non-None once in either
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direction, and no payloads may be passed after it has been communicated.
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allowance: A positive integer communicating the number of additional
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payloads allowed to be passed by the remote side of the operation.
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"""
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raise NotImplementedError()
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class ProtocolReceiver(six.with_metaclass(abc.ABCMeta)):
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"""A means of receiving protocol values during an operation."""
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@abc.abstractmethod
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def context(self, protocol_context):
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"""Accepts the protocol context object for the operation.
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Args:
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protocol_context: The protocol context object for the operation.
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"""
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raise NotImplementedError()
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class Subscription(six.with_metaclass(abc.ABCMeta)):
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"""Describes customer code's interest in values from the other side.
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Attributes:
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kind: A Kind value describing the overall kind of this value.
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termination_callback: A callable to be passed the Outcome associated with
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the operation after it has terminated. Must be non-None if kind is
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Kind.TERMINATION_ONLY. Must be None otherwise.
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allowance: A callable behavior that accepts positive integers representing
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the number of additional payloads allowed to be passed to the other side
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of the operation. Must be None if kind is Kind.FULL. Must not be None
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otherwise.
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operator: An Operator to be passed values from the other side of the
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operation. Must be non-None if kind is Kind.FULL. Must be None otherwise.
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protocol_receiver: A ProtocolReceiver to be passed protocol objects as they
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become available during the operation. Must be non-None if kind is
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Kind.FULL.
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"""
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@enum.unique
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class Kind(enum.Enum):
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NONE = 'none'
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TERMINATION_ONLY = 'termination only'
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FULL = 'full'
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class Servicer(six.with_metaclass(abc.ABCMeta)):
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"""Interface for service implementations."""
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@abc.abstractmethod
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def service(self, group, method, context, output_operator):
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"""Services an operation.
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Args:
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group: The group identifier of the operation to be serviced.
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method: The method identifier of the operation to be serviced.
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context: An OperationContext object affording contextual information and
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actions.
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output_operator: An Operator that will accept output values of the
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operation.
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Returns:
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A Subscription via which this object may or may not accept more values of
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the operation.
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Raises:
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NoSuchMethodError: If this Servicer does not handle operations with the
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given group and method.
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abandonment.Abandoned: If the operation has been aborted and there no
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longer is any reason to service the operation.
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"""
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raise NotImplementedError()
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class End(six.with_metaclass(abc.ABCMeta)):
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"""Common type for entry-point objects on both sides of an operation."""
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@abc.abstractmethod
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def start(self):
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"""Starts this object's service of operations."""
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raise NotImplementedError()
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@abc.abstractmethod
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def stop(self, grace):
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"""Stops this object's service of operations.
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This object will refuse service of new operations as soon as this method is
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called but operations under way at the time of the call may be given a
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grace period during which they are allowed to finish.
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Args:
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grace: A duration of time in seconds to allow ongoing operations to
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terminate before being forcefully terminated by the stopping of this
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End. May be zero to terminate all ongoing operations and immediately
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stop.
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Returns:
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A threading.Event that will be set to indicate all operations having
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terminated and this End having completely stopped. The returned event
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may not be set until after the full grace period (if some ongoing
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operation continues for the full length of the period) or it may be set
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much sooner (if for example this End had no operations in progress at
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the time its stop method was called).
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"""
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raise NotImplementedError()
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@abc.abstractmethod
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def operate(self,
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group,
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method,
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subscription,
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timeout,
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initial_metadata=None,
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payload=None,
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completion=None,
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protocol_options=None):
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"""Commences an operation.
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Args:
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group: The group identifier of the invoked operation.
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method: The method identifier of the invoked operation.
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subscription: A Subscription to which the results of the operation will be
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passed.
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timeout: A length of time in seconds to allow for the operation.
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initial_metadata: An initial metadata value to be sent to the other side
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of the operation. May be None if the initial metadata will be later
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passed via the returned operator or if there will be no initial metadata
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passed at all.
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payload: An initial payload for the operation.
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completion: A Completion value indicating the end of transmission to the
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other side of the operation.
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protocol_options: A value specified by the provider of a Base interface
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implementation affording custom state and behavior.
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Returns:
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A pair of objects affording information about the operation and action
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continuing the operation. The first element of the returned pair is an
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OperationContext for the operation and the second element of the
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returned pair is an Operator to which operation values not passed in
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this call should later be passed.
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"""
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raise NotImplementedError()
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@abc.abstractmethod
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def operation_stats(self):
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"""Reports the number of terminated operations broken down by outcome.
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Returns:
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A dictionary from Outcome.Kind value to an integer identifying the number
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of operations that terminated with that outcome kind.
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"""
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raise NotImplementedError()
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@abc.abstractmethod
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def add_idle_action(self, action):
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"""Adds an action to be called when this End has no ongoing operations.
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Args:
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action: A callable that accepts no arguments.
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"""
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raise NotImplementedError()
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# Copyright 2015 gRPC authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# 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."""
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import collections
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from grpc.framework.interfaces.base import base
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class _Completion(base.Completion,
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collections.namedtuple('_Completion', (
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'terminal_metadata',
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'code',
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'message',
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))):
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"""A trivial implementation of base.Completion."""
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|
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class _Subscription(base.Subscription,
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collections.namedtuple('_Subscription', (
|
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'kind',
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'termination_callback',
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'allowance',
|
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'operator',
|
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'protocol_receiver',
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))):
|
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"""A trivial implementation of base.Subscription."""
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_NONE_SUBSCRIPTION = _Subscription(base.Subscription.Kind.NONE, None, None,
|
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None, None)
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|
||||
|
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def completion(terminal_metadata, code, message):
|
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"""Creates a base.Completion aggregating the given operation values.
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||||
|
||||
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)
|
||||
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|||
# 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.
|
||||
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1052
venv/Lib/site-packages/grpc/framework/interfaces/face/face.py
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1052
venv/Lib/site-packages/grpc/framework/interfaces/face/face.py
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# 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 RPC Framework's Face interface."""
|
||||
|
||||
import collections
|
||||
|
||||
# stream is referenced from specification in this module.
|
||||
from grpc.framework.common import cardinality
|
||||
from grpc.framework.common import style
|
||||
from grpc.framework.foundation import stream # pylint: disable=unused-import
|
||||
from grpc.framework.interfaces.face import face
|
||||
|
||||
|
||||
class _MethodImplementation(face.MethodImplementation,
|
||||
collections.namedtuple('_MethodImplementation', [
|
||||
'cardinality',
|
||||
'style',
|
||||
'unary_unary_inline',
|
||||
'unary_stream_inline',
|
||||
'stream_unary_inline',
|
||||
'stream_stream_inline',
|
||||
'unary_unary_event',
|
||||
'unary_stream_event',
|
||||
'stream_unary_event',
|
||||
'stream_stream_event',
|
||||
])):
|
||||
pass
|
||||
|
||||
|
||||
def unary_unary_inline(behavior):
|
||||
"""Creates an face.MethodImplementation for the given behavior.
|
||||
|
||||
Args:
|
||||
behavior: The implementation of a unary-unary RPC method as a callable value
|
||||
that takes a request value and an face.ServicerContext object and
|
||||
returns a response value.
|
||||
|
||||
Returns:
|
||||
An face.MethodImplementation derived from the given behavior.
|
||||
"""
|
||||
return _MethodImplementation(cardinality.Cardinality.UNARY_UNARY,
|
||||
style.Service.INLINE, behavior, None, None,
|
||||
None, None, None, None, None)
|
||||
|
||||
|
||||
def unary_stream_inline(behavior):
|
||||
"""Creates an face.MethodImplementation for the given behavior.
|
||||
|
||||
Args:
|
||||
behavior: The implementation of a unary-stream RPC method as a callable
|
||||
value that takes a request value and an face.ServicerContext object and
|
||||
returns an iterator of response values.
|
||||
|
||||
Returns:
|
||||
An face.MethodImplementation derived from the given behavior.
|
||||
"""
|
||||
return _MethodImplementation(cardinality.Cardinality.UNARY_STREAM,
|
||||
style.Service.INLINE, None, behavior, None,
|
||||
None, None, None, None, None)
|
||||
|
||||
|
||||
def stream_unary_inline(behavior):
|
||||
"""Creates an face.MethodImplementation for the given behavior.
|
||||
|
||||
Args:
|
||||
behavior: The implementation of a stream-unary RPC method as a callable
|
||||
value that takes an iterator of request values and an
|
||||
face.ServicerContext object and returns a response value.
|
||||
|
||||
Returns:
|
||||
An face.MethodImplementation derived from the given behavior.
|
||||
"""
|
||||
return _MethodImplementation(cardinality.Cardinality.STREAM_UNARY,
|
||||
style.Service.INLINE, None, None, behavior,
|
||||
None, None, None, None, None)
|
||||
|
||||
|
||||
def stream_stream_inline(behavior):
|
||||
"""Creates an face.MethodImplementation for the given behavior.
|
||||
|
||||
Args:
|
||||
behavior: The implementation of a stream-stream RPC method as a callable
|
||||
value that takes an iterator of request values and an
|
||||
face.ServicerContext object and returns an iterator of response values.
|
||||
|
||||
Returns:
|
||||
An face.MethodImplementation derived from the given behavior.
|
||||
"""
|
||||
return _MethodImplementation(cardinality.Cardinality.STREAM_STREAM,
|
||||
style.Service.INLINE, None, None, None,
|
||||
behavior, None, None, None, None)
|
||||
|
||||
|
||||
def unary_unary_event(behavior):
|
||||
"""Creates an face.MethodImplementation for the given behavior.
|
||||
|
||||
Args:
|
||||
behavior: The implementation of a unary-unary RPC method as a callable
|
||||
value that takes a request value, a response callback to which to pass
|
||||
the response value of the RPC, and an face.ServicerContext.
|
||||
|
||||
Returns:
|
||||
An face.MethodImplementation derived from the given behavior.
|
||||
"""
|
||||
return _MethodImplementation(cardinality.Cardinality.UNARY_UNARY,
|
||||
style.Service.EVENT, None, None, None, None,
|
||||
behavior, None, None, None)
|
||||
|
||||
|
||||
def unary_stream_event(behavior):
|
||||
"""Creates an face.MethodImplementation for the given behavior.
|
||||
|
||||
Args:
|
||||
behavior: The implementation of a unary-stream RPC method as a callable
|
||||
value that takes a request value, a stream.Consumer to which to pass the
|
||||
the response values of the RPC, and an face.ServicerContext.
|
||||
|
||||
Returns:
|
||||
An face.MethodImplementation derived from the given behavior.
|
||||
"""
|
||||
return _MethodImplementation(cardinality.Cardinality.UNARY_STREAM,
|
||||
style.Service.EVENT, None, None, None, None,
|
||||
None, behavior, None, None)
|
||||
|
||||
|
||||
def stream_unary_event(behavior):
|
||||
"""Creates an face.MethodImplementation for the given behavior.
|
||||
|
||||
Args:
|
||||
behavior: The implementation of a stream-unary RPC method as a callable
|
||||
value that takes a response callback to which to pass the response value
|
||||
of the RPC and an face.ServicerContext and returns a stream.Consumer to
|
||||
which the request values of the RPC should be passed.
|
||||
|
||||
Returns:
|
||||
An face.MethodImplementation derived from the given behavior.
|
||||
"""
|
||||
return _MethodImplementation(cardinality.Cardinality.STREAM_UNARY,
|
||||
style.Service.EVENT, None, None, None, None,
|
||||
None, None, behavior, None)
|
||||
|
||||
|
||||
def stream_stream_event(behavior):
|
||||
"""Creates an face.MethodImplementation for the given behavior.
|
||||
|
||||
Args:
|
||||
behavior: The implementation of a stream-stream RPC method as a callable
|
||||
value that takes a stream.Consumer to which to pass the response values
|
||||
of the RPC and an face.ServicerContext and returns a stream.Consumer to
|
||||
which the request values of the RPC should be passed.
|
||||
|
||||
Returns:
|
||||
An face.MethodImplementation derived from the given behavior.
|
||||
"""
|
||||
return _MethodImplementation(cardinality.Cardinality.STREAM_STREAM,
|
||||
style.Service.EVENT, None, None, None, None,
|
||||
None, None, None, behavior)
|
||||
Loading…
Add table
Add a link
Reference in a new issue