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from __future__ import print_function
import time
import argparse
import grpc
from jaeger_client import Config
from grpc_opentracing import open_tracing_client_interceptor, ActiveSpanSource
from grpc_opentracing.grpcext import intercept_channel
import command_line_pb2
class FixedActiveSpanSource(ActiveSpanSource):
def __init__(self):
self.active_span = None
def get_active_span(self):
return self.active_span
def echo(tracer, active_span_source, stub):
with tracer.start_span('command_line_client_span') as span:
active_span_source.active_span = span
response = stub.Echo(
command_line_pb2.CommandRequest(text='Hello, hello'))
print(response.text)
def run():
parser = argparse.ArgumentParser()
parser.add_argument(
'--log_payloads',
action='store_true',
help='log request/response objects to open-tracing spans')
args = parser.parse_args()
config = Config(
config={
'sampler': {
'type': 'const',
'param': 1,
},
'logging': True,
},
service_name='integration-client')
tracer = config.initialize_tracer()
active_span_source = FixedActiveSpanSource()
tracer_interceptor = open_tracing_client_interceptor(
tracer,
active_span_source=active_span_source,
log_payloads=args.log_payloads)
channel = grpc.insecure_channel('localhost:50051')
channel = intercept_channel(channel, tracer_interceptor)
stub = command_line_pb2.CommandLineStub(channel)
echo(tracer, active_span_source, stub)
time.sleep(2)
tracer.close()
time.sleep(2)
if __name__ == '__main__':
run()
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