зеркало из https://github.com/github/vitess-gh.git
81 строка
2.5 KiB
Python
81 строка
2.5 KiB
Python
# Copyright 2019 The Vitess 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.
|
|
"""This file contains the grpc implementation of the vtctl client.
|
|
"""
|
|
|
|
import datetime
|
|
from urlparse import urlparse
|
|
|
|
from vtdb import prefer_vtroot_imports # pylint: disable=unused-import
|
|
|
|
import grpc
|
|
|
|
import vtctl_client
|
|
|
|
from vtproto import vtctldata_pb2
|
|
from vtproto import vtctlservice_pb2_grpc
|
|
from util import static_auth_client
|
|
from util import grpc_with_metadata
|
|
|
|
|
|
class GRPCVtctlClient(vtctl_client.VtctlClient):
|
|
"""GRPCVtctlClient is the gRPC implementation of VtctlClient.
|
|
|
|
It is registered as 'grpc' protocol.
|
|
"""
|
|
|
|
def __init__(self, addr, timeout, auth_static_client_creds=None):
|
|
self.addr = addr
|
|
self.timeout = timeout
|
|
self.stub = None
|
|
self.auth_static_client_creds = auth_static_client_creds
|
|
|
|
def __str__(self):
|
|
return '<GRPCVtctlClient %s>' % self.addr
|
|
|
|
def dial(self):
|
|
if self.stub:
|
|
self.stub.close()
|
|
|
|
p = urlparse('http://' + self.addr)
|
|
channel = grpc.insecure_channel('%s:%s' % (p.hostname, p.port))
|
|
if self.auth_static_client_creds is not None:
|
|
channel = grpc_with_metadata.GRPCWithMetadataChannel(
|
|
channel,
|
|
self.get_auth_static_client_creds)
|
|
self.stub = vtctlservice_pb2_grpc.VtctlStub(channel)
|
|
|
|
def close(self):
|
|
self.stub = None
|
|
|
|
def is_closed(self):
|
|
return self.stub is None
|
|
|
|
def get_auth_static_client_creds(self):
|
|
return static_auth_client.StaticAuthClientCreds(
|
|
self.auth_static_client_creds).metadata()
|
|
|
|
def execute_vtctl_command(self, args, action_timeout=30.0):
|
|
req = vtctldata_pb2.ExecuteVtctlCommandRequest(
|
|
args=args,
|
|
action_timeout=long(action_timeout * 1e9))
|
|
it = self.stub.ExecuteVtctlCommand(req, action_timeout)
|
|
for response in it:
|
|
t = datetime.datetime.utcfromtimestamp(response.event.time.seconds)
|
|
yield vtctl_client.Event(t, response.event.level, response.event.file,
|
|
response.event.line, response.event.value)
|
|
|
|
|
|
vtctl_client.register_conn_class('grpc', GRPCVtctlClient)
|