Commit 6f9c0bd2 authored by Lluis Gifre Renom's avatar Lluis Gifre Renom
Browse files

Common framework:

- Extend generic gRPC services to enable gRPC reflection
- Add grpc-reflection dependency
parent ba137f9e
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+1 −0
Original line number Diff line number Diff line
@@ -15,6 +15,7 @@
coverage==6.3
grpcio==1.47.*
grpcio-health-checking==1.47.*
grpcio-reflection==1.47.*
grpcio-tools==1.47.*
grpclib==0.4.4
prettytable==3.5.0
+16 −3
Original line number Diff line number Diff line
@@ -12,18 +12,21 @@
# See the License for the specific language governing permissions and
# limitations under the License.

from typing import Optional, Union
import grpc, logging
from concurrent import futures
from typing import Any, List, Optional, Union
from grpc_health.v1.health import HealthServicer, OVERALL_HEALTH
from grpc_health.v1.health_pb2 import HealthCheckResponse
from grpc_health.v1.health_pb2_grpc import add_HealthServicer_to_server
from grpc_reflection.v1alpha import reflection
from common.Settings import get_grpc_bind_address, get_grpc_grace_period, get_grpc_max_workers

class GenericGrpcService:
    def __init__(
        self, bind_port : Union[str, int], bind_address : Optional[str] = None, max_workers : Optional[int] = None,
        grace_period : Optional[int] = None, enable_health_servicer : bool = True, cls_name : str = __name__
        self, bind_port : Union[str, int], bind_address : Optional[str] = None,
        max_workers : Optional[int] = None, grace_period : Optional[int] = None,
        enable_health_servicer : bool = True, enable_reflection : bool = True,
        cls_name : str = __name__
    ) -> None:
        self.logger = logging.getLogger(cls_name)
        self.bind_port = bind_port
@@ -31,6 +34,8 @@ class GenericGrpcService:
        self.max_workers = get_grpc_max_workers() if max_workers is None else max_workers
        self.grace_period = get_grpc_grace_period() if grace_period is None else grace_period
        self.enable_health_servicer = enable_health_servicer
        self.enable_reflection = enable_reflection
        self.reflection_service_names : List[str] = [reflection.SERVICE_NAME]
        self.endpoint = None
        self.health_servicer = None
        self.pool = None
@@ -39,6 +44,11 @@ class GenericGrpcService:
    def install_servicers(self):
        pass

    def add_reflection_service_name(self, service_descriptor : Any, service_name : str):
        self.reflection_service_names.append(
            service_descriptor.services_by_name[service_name].full_name
        )

    def start(self):
        self.endpoint = '{:s}:{:s}'.format(str(self.bind_address), str(self.bind_port))
        self.logger.info('Starting Service (tentative endpoint: {:s}, max_workers: {:s})...'.format(
@@ -54,6 +64,9 @@ class GenericGrpcService:
                experimental_non_blocking=True, experimental_thread_pool=futures.ThreadPoolExecutor(max_workers=1))
            add_HealthServicer_to_server(self.health_servicer, self.server)

        if self.enable_reflection:
            reflection.enable_server_reflection(self.reflection_service_names, self.server)

        self.bind_port = self.server.add_insecure_port(self.endpoint)
        self.endpoint = '{:s}:{:s}'.format(str(self.bind_address), str(self.bind_port))
        self.logger.info('Listening on {:s}...'.format(str(self.endpoint)))
+18 −6
Original line number Diff line number Diff line
@@ -12,19 +12,21 @@
# See the License for the specific language governing permissions and
# limitations under the License.

from typing import Optional, Union
import grpc
import logging
import grpc, logging
from concurrent import futures
from typing import Any, List, Optional, Union
from grpc_health.v1.health import HealthServicer, OVERALL_HEALTH
from grpc_health.v1.health_pb2 import HealthCheckResponse
from grpc_health.v1.health_pb2_grpc import add_HealthServicer_to_server
from grpc_reflection.v1alpha import reflection
from common.Settings import get_grpc_bind_address, get_grpc_grace_period, get_grpc_max_workers

class GenericGrpcServiceAsync:
    def __init__(
        self, bind_port: Union[str, int], bind_address: Optional[str] = None, max_workers: Optional[int] = None,
        grace_period: Optional[int] = None, enable_health_servicer: bool = True, cls_name: str = __name__
        self, bind_port : Union[str, int], bind_address : Optional[str] = None,
        max_workers : Optional[int] = None, grace_period : Optional[int] = None,
        enable_health_servicer : bool = True, enable_reflection : bool = True,
        cls_name : str = __name__
    ) -> None:
        self.logger = logging.getLogger(cls_name)
        self.bind_port = bind_port
@@ -32,6 +34,8 @@ class GenericGrpcServiceAsync:
        self.max_workers = get_grpc_max_workers() if max_workers is None else max_workers
        self.grace_period = get_grpc_grace_period() if grace_period is None else grace_period
        self.enable_health_servicer = enable_health_servicer
        self.enable_reflection = enable_reflection
        self.reflection_service_names : List[str] = [reflection.SERVICE_NAME]
        self.endpoint = None
        self.health_servicer = None
        self.pool = None
@@ -40,7 +44,12 @@ class GenericGrpcServiceAsync:
    async def install_servicers(self):
        pass

    async def start(self):
    def add_reflection_service_name(self, service_descriptor : Any, service_name : str):
        self.reflection_service_names.append(
            service_descriptor.services_by_name[service_name].full_name
        )

    def start(self):
        self.endpoint = '{:s}:{:s}'.format(str(self.bind_address), str(self.bind_port))
        self.logger.info('Starting Service (tentative endpoint: {:s}, max_workers: {:s})...'.format(
            str(self.endpoint), str(self.max_workers)))
@@ -55,6 +64,9 @@ class GenericGrpcServiceAsync:
                experimental_non_blocking=True, experimental_thread_pool=futures.ThreadPoolExecutor(max_workers=1))
            add_HealthServicer_to_server(self.health_servicer, self.server)

        if self.enable_reflection:
            reflection.enable_server_reflection(self.reflection_service_names, self.server)

        self.bind_port = self.server.add_insecure_port(self.endpoint)
        self.endpoint = '{:s}:{:s}'.format(str(self.bind_address), str(self.bind_port))
        self.logger.info('Listening on {:s}...'.format(str(self.endpoint)))