зеркало из https://github.com/github/vitess-gh.git
57 строки
1.6 KiB
Python
57 строки
1.6 KiB
Python
# Copyright 2015 Google Inc. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can
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# be found in the LICENSE file.
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"""This file contains the grpc implementation of the vtctl client.
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"""
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import datetime
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from urlparse import urlparse
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from grpc.beta import implementations
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import vtctl_client
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from vtproto import vtctldata_pb2
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from vtproto import vtctlservice_pb2
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class GRPCVtctlClient(vtctl_client.VtctlClient):
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"""GRPCVtctlClient is the gRPC implementation of VtctlClient.
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It is registered as 'grpc' protocol.
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"""
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def __init__(self, addr, timeout):
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self.addr = addr
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self.timeout = timeout
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self.stub = None
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def __str__(self):
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return '<GRPCVtctlClient %s>' % self.addr
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def dial(self):
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if self.stub:
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self.stub.close()
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p = urlparse('http://' + self.addr)
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channel = implementations.insecure_channel(p.hostname, p.port)
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self.stub = vtctlservice_pb2.beta_create_Vtctl_stub(channel)
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def close(self):
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self.stub = None
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def is_closed(self):
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return self.stub is None
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def execute_vtctl_command(self, args, action_timeout=30.0):
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req = vtctldata_pb2.ExecuteVtctlCommandRequest(
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args=args,
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action_timeout=long(action_timeout * 1e9))
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it = self.stub.ExecuteVtctlCommand(req, action_timeout)
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for response in it:
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t = datetime.datetime.utcfromtimestamp(response.event.time.seconds)
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yield vtctl_client.Event(t, response.event.level, response.event.file,
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response.event.line, response.event.value)
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vtctl_client.register_conn_class('grpc', GRPCVtctlClient)
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