/
_opentelemetry_tracing.py
65 lines (54 loc) · 2.34 KB
/
_opentelemetry_tracing.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
# Copyright 2016 Google LLC All rights reserved.
#
# 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.
"""Manages OpenTelemetry trace creation and handling"""
from contextlib import contextmanager
from google.api_core.exceptions import GoogleAPICallError
from google.cloud.spanner_v1.gapic import spanner_client
try:
from opentelemetry import trace
from opentelemetry.trace.status import Status, StatusCanonicalCode
from opentelemetry.instrumentation.utils import http_status_to_canonical_code
HAS_OPENTELEMETRY_INSTALLED = True
except (ImportError, ModuleNotFoundError):
HAS_OPENTELEMETRY_INSTALLED = False
@contextmanager
def trace_call(name, session, extra_attributes=None):
if not HAS_OPENTELEMETRY_INSTALLED:
# empty context manager. users will have to check if the generated value is None or a span
yield None
return
tracer = trace.get_tracer(__name__)
# base attributes that we know for every trace created
attributes = {
"db.type": "spanner",
"db.url": spanner_client.SpannerClient.SERVICE_ADDRESS,
"db.instance": session._database.name,
"net.host.name": spanner_client.SpannerClient.SERVICE_ADDRESS,
}
if extra_attributes:
attributes.update(extra_attributes)
with tracer.start_as_current_span(
name, kind=trace.SpanKind.CLIENT, attributes=attributes
) as span:
try:
yield span
except GoogleAPICallError as error:
if error.code is not None:
span.set_status(Status(http_status_to_canonical_code(error.code)))
elif error.grpc_status_code is not None:
span.set_status(
# OpenTelemetry's StatusCanonicalCode maps 1-1 with grpc status codes
Status(StatusCanonicalCode(error.grpc_status_code.value[0]))
)
raise