def intercept_stream_stream(self, continuation, client_call_details,
request_iterator):
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(
client_call_details)
grpc_type = grpc_utils.BIDI_STREAMING
response_iterator = continuation(
client_call_details,
grpc_utils.wrap_iterator_inc_counter(
request_iterator, GRPC_CLIENT_MSG_SENT_TOTAL_COUNTER,
grpc_type, grpc_service_name, grpc_method_name))
return grpc_utils.wrap_iterator_inc_counter(
response_iterator, GRPC_CLIENT_MSG_RECEIVED_TOTAL_COUNTER,
grpc_type, grpc_service_name, grpc_method_name)
def intercept_stream_unary(self, continuation, client_call_details,
request_iterator):
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(
client_call_details)
grpc_type = grpc_utils.CLIENT_STREAMING
iterator_metric = self._metrics["grpc_client_stream_msg_sent"]
request_iterator = grpc_utils.wrap_iterator_inc_counter(
request_iterator, iterator_metric, grpc_type, grpc_service_name,
grpc_method_name)
start = default_timer()
handler = continuation(client_call_details, request_iterator)
if self._legacy:
self._metrics["grpc_client_started_counter"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).inc()
self._metrics[
"legacy_grpc_client_completed_latency_seconds_histogram"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(
max(default_timer() - start, 0))
else:
self._metrics["grpc_client_started_counter"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).inc()
if self._enable_client_handling_time_histogram:
self._metrics["grpc_client_handled_histogram"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(
max(default_timer() - start, 0))
if self._enable_client_stream_send_time_histogram and not self._legacy:
self._metrics["grpc_client_stream_send_histogram"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(
max(default_timer() - start, 0))
return handler
def intercept_stream_unary(self, continuation, client_call_details, request_iterator):
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(client_call_details)
grpc_type = grpc_utils.CLIENT_STREAMING
iterator_metric = GRPC_CLIENT_STREAM_MSG_SENT
request_iterator = grpc_utils.wrap_iterator_inc_counter(
request_iterator,
iterator_metric,
grpc_type,
grpc_service_name,
grpc_method_name)
start = default_timer()
handler = continuation(client_call_details, request_iterator)
if self._legacy:
GRPC_CLIENT_STARTED_COUNTER.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).inc()
LEGACY_GRPC_CLIENT_COMPLETED_LATENCY_SECONDS_HISTOGRAM.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(max(default_timer() - start, 0))
else:
GRPC_CLIENT_STARTED_COUNTER.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).inc()
if self._enable_client_handling_time_histogram:
GRPC_CLIENT_HANDLED_HISTOGRAM.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(max(default_timer() - start, 0))
if self._enable_client_stream_send_time_histogram and not self._legacy:
GRPC_CLIENT_STREAM_SEND_HISTOGRAM.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(max(default_timer() - start, 0))
return handler
def intercept_unary_unary(self, continuation, client_call_details,
request):
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(
client_call_details)
grpc_type = grpc_utils.UNARY
self._metrics["grpc_client_started_counter"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).inc()
start = default_timer()
handler = continuation(client_call_details, request)
if self._legacy:
self._metrics[
"legacy_grpc_client_completed_latency_seconds_histogram"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(
max(default_timer() - start, 0))
elif self._enable_client_handling_time_histogram:
self._metrics["grpc_client_handled_histogram"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(
max(default_timer() - start, 0))
if self._legacy:
self._metrics["legacy_grpc_client_completed_counter"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name,
code=handler.code().name).inc()
else:
self._metrics["grpc_client_handled_counter"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name,
grpc_code=handler.code().name).inc()
return handler
def intercept_unary_stream(self, continuation, client_call_details,
request):
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(
client_call_details)
grpc_type = grpc_utils.SERVER_STREAMING
self._metrics["grpc_client_started_counter"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).inc()
start = default_timer()
handler = continuation(client_call_details, request)
if self._legacy:
self._metrics[
"legacy_grpc_client_completed_latency_seconds_histogram"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(
max(default_timer() - start, 0))
elif self._enable_client_handling_time_histogram:
self._metrics["grpc_client_handled_histogram"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(
max(default_timer() - start, 0))
handler = grpc_utils.wrap_iterator_inc_counter(
handler, self._metrics["grpc_client_stream_msg_received"],
grpc_type, grpc_service_name, grpc_method_name)
if self._enable_client_stream_receive_time_histogram and not self._legacy:
self._metrics["grpc_client_stream_recv_histogram"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(
max(default_timer() - start, 0))
return handler
def intercept_stream_stream(self, continuation, client_call_details, request_iterator):
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(
client_call_details)
grpc_type = grpc_utils.BIDI_STREAMING
start = default_timer()
iterator_sent_metric = GRPC_CLIENT_STREAM_MSG_SENT
response_iterator = continuation(
client_call_details,
grpc_utils.wrap_iterator_inc_counter(
request_iterator,
iterator_sent_metric,
grpc_type,
grpc_service_name,
grpc_method_name))
if self._enable_client_stream_send_time_histogram and not self._legacy:
GRPC_CLIENT_STREAM_SEND_HISTOGRAM.labels(
grpc_type=grpc_type,
grpc_Service=grpc_service_name,
grpc_method=grpc_method_name).observe(max(default_timer() - start, 0))
iterator_received_metric = GRPC_CLIENT_STREAM_MSG_RECEIVED
response_iterator = grpc_utils.wrap_iterator_inc_counter(
response_iterator,
iterator_received_metric,
grpc_type,
grpc_service_name,
grpc_method_name)
if self._enable_client_stream_receive_time_histogram and not self._legacy:
GRPC_CLIENT_STREAM_RECV_HISTOGRAM.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(max(default_timer() - start, 0))
return response_iterator
def intercept_stream_unary(self, continuation, client_call_details,
request_iterator):
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(
client_call_details)
grpc_type = grpc_utils.CLIENT_STREAMING
request_iterator = grpc_utils.wrap_iterator_inc_counter(
request_iterator, GRPC_CLIENT_MSG_SENT_TOTAL_COUNTER, grpc_type,
grpc_service_name, grpc_method_name)
start = default_timer()
handler = continuation(client_call_details, request_iterator)
GRPC_CLIENT_STARTED_TOTAL_COUNTER.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).inc()
GRPC_CLIENT_COMPLETED_LATENCY_SECONDS_HISTOGRAM.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(
max(default_timer() - start, 0))
return handler
def intercept_stream_stream(self, continuation, client_call_details,
request_iterator):
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(
client_call_details)
grpc_type = grpc_utils.BIDI_STREAMING
start = default_timer()
iterator_sent_metric = self._metrics["grpc_client_stream_msg_sent"]
response_iterator = continuation(
client_call_details,
grpc_utils.wrap_iterator_inc_counter(request_iterator,
iterator_sent_metric,
grpc_type, grpc_service_name,
grpc_method_name))
if self._enable_client_stream_send_time_histogram and not self._legacy:
self._metrics["grpc_client_stream_send_histogram"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(
max(default_timer() - start, 0))
iterator_received_metric = self._metrics[
"grpc_client_stream_msg_received"]
response_iterator = grpc_utils.wrap_iterator_inc_counter(
response_iterator, iterator_received_metric, grpc_type,
grpc_service_name, grpc_method_name)
if self._enable_client_stream_receive_time_histogram and not self._legacy:
self._metrics["grpc_client_stream_recv_histogram"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(
max(default_timer() - start, 0))
return response_iterator
def intercept_unary_stream(self, continuation, client_call_details, request):
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(client_call_details)
grpc_type = grpc_utils.SERVER_STREAMING
GRPC_CLIENT_STARTED_COUNTER.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).inc()
start = default_timer()
handler = continuation(client_call_details, request)
if self._legacy:
LEGACY_GRPC_CLIENT_COMPLETED_LATENCY_SECONDS_HISTOGRAM.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(max(default_timer() - start, 0))
elif self._enable_client_handling_time_histogram:
GRPC_CLIENT_HANDLED_HISTOGRAM.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(max(default_timer() - start, 0))
handler = grpc_utils.wrap_iterator_inc_counter(
handler,
GRPC_CLIENT_STREAM_MSG_RECEIVED,
grpc_type,
grpc_service_name,
grpc_method_name)
if self._enable_client_stream_receive_time_histogram and not self._legacy:
GRPC_CLIENT_STREAM_RECV_HISTOGRAM.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(max(default_timer() - start, 0))
return handler
def intercept_unary_unary(self, continuation, client_call_details, request):
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(client_call_details)
grpc_type = grpc_utils.UNARY
GRPC_CLIENT_STARTED_COUNTER.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).inc()
start = default_timer()
handler = continuation(client_call_details, request)
if self._legacy:
LEGACY_GRPC_CLIENT_COMPLETED_LATENCY_SECONDS_HISTOGRAM.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(max(default_timer() - start, 0))
elif self._enable_client_handling_time_histogram:
GRPC_CLIENT_HANDLED_HISTOGRAM.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(max(default_timer() - start, 0))
if self._legacy:
LEGACY_GRPC_CLIENT_COMPLETED_COUNTER.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name,
code=handler.code().name).inc()
else:
GRPC_CLIENT_HANDLED_COUNTER.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name,
grpc_code=handler.code().name).inc()
return handler
def intercept_unary_unary(self, continuation, client_call_details,
request):
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(
client_call_details)
grpc_type = grpc_utils.UNARY
GRPC_CLIENT_STARTED_TOTAL_COUNTER.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).inc()
start = default_timer()
handler = continuation(client_call_details, request)
GRPC_CLIENT_COMPLETED_LATENCY_SECONDS_HISTOGRAM.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).observe(
max(default_timer() - start, 0))
GRPC_CLIENT_COMPLETED_COUNTER.labels(grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name,
code=handler.code().name).inc()
return handler
def intercept_service(self, continuation, handler_call_details):
"""
Intercepts the server function calls.
This implements referred to:
https://github.com/census-instrumentation/opencensus-python/blob/master/opencensus/
trace/ext/grpc/server_interceptor.py
and
https://grpc.io/grpc/python/grpc.html#service-side-interceptor
"""
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(
handler_call_details)
def metrics_wrapper(behavior, request_streaming, response_streaming):
def new_behavior(request_or_iterator, servicer_context):
response_or_iterator = None
try:
start = default_timer()
grpc_type = grpc_utils.get_method_type(
request_streaming, response_streaming)
try:
if request_streaming:
request_or_iterator = grpc_utils.wrap_iterator_inc_counter(
request_or_iterator, self.
_metrics["grpc_server_stream_msg_received"],
grpc_type, grpc_service_name, grpc_method_name)
else:
self._metrics[
"grpc_server_started_counter"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name).inc()
# Invoke the original rpc behavior.
response_or_iterator = behavior(
request_or_iterator, servicer_context)
if response_streaming:
sent_metric = self._metrics[
"grpc_server_stream_msg_sent"]
response_or_iterator = grpc_utils.wrap_iterator_inc_counter(
response_or_iterator, sent_metric, grpc_type,
grpc_service_name, grpc_method_name)
else:
self.increase_grpc_server_handled_total_counter(
grpc_type, grpc_service_name, grpc_method_name,
self._compute_status_code(
servicer_context).name)
return response_or_iterator
except grpc.RpcError as e:
self.increase_grpc_server_handled_total_counter(
grpc_type, grpc_service_name, grpc_method_name,
self._compute_error_code(e).name)
raise e
finally:
if not response_streaming:
if self._legacy:
self._metrics["legacy_grpc_server_handled_latency_seconds"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name) \
.observe(max(default_timer() - start, 0))
elif self._enable_handling_time_histogram:
self._metrics["grpc_server_handled_histogram"].labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name) \
.observe(max(default_timer() - start, 0))
except Exception as e: # pylint: disable=broad-except
# Allow user to skip the exceptions in order to maintain
# the basic functionality in the server
# The logging function in exception can be toggled with log_exceptions
# in order to suppress the noise in logging
if self._skip_exceptions:
if self._log_exceptions:
_LOGGER.error(e)
if response_or_iterator is None:
return response_or_iterator
return behavior(request_or_iterator, servicer_context)
raise e
return new_behavior
optional_any = self._wrap_rpc_behavior(
continuation(handler_call_details), metrics_wrapper)
return optional_any
def intercept_service(self, continuation, handler_call_details):
"""
Intercepts the server function calls.
This implements referred to:
https://github.com/census-instrumentation/opencensus-python/blob/master/opencensus/
trace/ext/grpc/server_interceptor.py
and
https://grpc.io/grpc/python/grpc.html#service-side-interceptor
"""
grpc_service_name, grpc_method_name, _ = grpc_utils.split_method_call(
handler_call_details)
def metrics_wrapper(behavior, request_streaming, response_streaming):
def new_behavior(request_or_iterator, servicer_context):
start = default_timer()
grpc_type = grpc_utils.get_method_type(request_streaming,
response_streaming)
try:
if request_streaming:
request_or_iterator = grpc_utils.wrap_iterator_inc_counter(
request_or_iterator,
GRPC_SERVER_MSG_RECEIVED_TOTAL_COUNTER, grpc_type,
grpc_service_name, grpc_method_name)
else:
GRPC_SERVER_STARTED_TOTAL_COUNTER.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name) \
.inc()
# Invoke the original rpc behavior.
response_or_iterator = behavior(request_or_iterator,
servicer_context)
if response_streaming:
response_or_iterator = grpc_utils.wrap_iterator_inc_counter(
response_or_iterator,
GRPC_SERVER_MSG_SENT_TOTAL_COUNTER, grpc_type,
grpc_service_name, grpc_method_name)
else:
GRPC_SERVER_HANDLED_TOTAL_COUNTER.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name,
code=self._compute_status_code(
servicer_context).name).inc()
return response_or_iterator
except grpc.RpcError as e:
GRPC_SERVER_HANDLED_TOTAL_COUNTER.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name,
code=self._compute_error_code(e)).inc()
raise e
finally:
if not response_streaming:
GRPC_SERVER_HANDLED_LATENCY_SECONDS.labels(
grpc_type=grpc_type,
grpc_service=grpc_service_name,
grpc_method=grpc_method_name) \
.observe(max(default_timer() - start, 0))
return new_behavior
return self._wrap_rpc_behavior(continuation(handler_call_details),
metrics_wrapper)