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Diffstat (limited to 'src/python/grpcio_health_checking/grpc/health/v1/health.py')
-rw-r--r-- | src/python/grpcio_health_checking/grpc/health/v1/health.py | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/src/python/grpcio_health_checking/grpc/health/v1/health.py b/src/python/grpcio_health_checking/grpc/health/v1/health.py deleted file mode 100644 index 4b5af15aa6..0000000000 --- a/src/python/grpcio_health_checking/grpc/health/v1/health.py +++ /dev/null @@ -1,129 +0,0 @@ -# Copyright 2015, Google Inc. -# All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are -# met: -# -# * Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# * Redistributions in binary form must reproduce the above -# copyright notice, this list of conditions and the following disclaimer -# in the documentation and/or other materials provided with the -# distribution. -# * Neither the name of Google Inc. nor the names of its -# contributors may be used to endorse or promote products derived from -# this software without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -"""Reference implementation for health checking in gRPC Python.""" - -import abc -import enum -import threading - -from grpc.health.v1 import health_pb2 - - -@enum.unique -class HealthStatus(enum.Enum): - """Statuses for a service mirroring the reference health.proto's values.""" - UNKNOWN = health_pb2.HealthCheckResponse.UNKNOWN - SERVING = health_pb2.HealthCheckResponse.SERVING - NOT_SERVING = health_pb2.HealthCheckResponse.NOT_SERVING - - -class _HealthServicer(health_pb2.EarlyAdopterHealthServicer): - """Servicer handling RPCs for service statuses.""" - - def __init__(self): - self._server_status_lock = threading.Lock() - self._server_status = {} - - def Check(self, request, context): - with self._server_status_lock: - if request.service not in self._server_status: - # TODO(atash): once the Python API has a way of setting the server - # status, bring us into conformance with the health check spec by - # returning the NOT_FOUND status here. - raise NotImplementedError() - else: - return health_pb2.HealthCheckResponse( - status=self._server_status[request.service].value) - - def set(service, status): - if not isinstance(status, HealthStatus): - raise TypeError('expected grpc.health.v1.health.HealthStatus ' - 'for argument `status` but got {}'.format(status)) - with self._server_status_lock: - self._server_status[service] = status - - -class HealthServer(health_pb2.EarlyAdopterHealthServer): - """Interface for the reference gRPC Python health server.""" - __metaclass__ = abc.ABCMeta - - @abc.abstractmethod - def start(self): - raise NotImplementedError() - - @abc.abstractmethod - def stop(self): - raise NotImplementedError() - - @abc.abstractmethod - def set(self, service, status): - """Set the status of the given service. - - Args: - service (str): service name of the service to set the reported status of - status (HealthStatus): status to set for the specified service - """ - raise NotImplementedError() - - -class _HealthServerImplementation(HealthServer): - """Implementation for the reference gRPC Python health server.""" - - def __init__(self, server, servicer): - self._server = server - self._servicer = servicer - - def start(self): - self._server.start() - - def stop(self): - self._server.stop() - - def set(self, service, status): - self._servicer.set(service, status) - - -def create_Health_server(port, private_key=None, certificate_chain=None): - """Get a HealthServer instance. - - Args: - port (int): port number passed through to health_pb2 server creation - routine. - private_key (str): to-be-created server's desired private key - certificate_chain (str): to-be-created server's desired certificate chain - - Returns: - An instance of HealthServer (conforming thus to - EarlyAdopterHealthServer and providing a method to set server status).""" - servicer = _HealthServicer() - server = health_pb2.early_adopter_create_Health_server( - servicer, port=port, private_key=private_key, - certificate_chain=certificate_chain) - return _HealthServerImplementation(server, servicer) |