blob: cd1f89bcde2f860208b44690408732f6e886a46f (
about) (
plain)
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
|
# Copyright The OpenTelemetry 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.
import abc
import random
from opentelemetry import trace
class IdGenerator(abc.ABC):
@abc.abstractmethod
def generate_span_id(self) -> int:
"""Get a new span ID.
Returns:
A 64-bit int for use as a span ID
"""
@abc.abstractmethod
def generate_trace_id(self) -> int:
"""Get a new trace ID.
Implementations should at least make the 64 least significant bits
uniformly random. Samplers like the `TraceIdRatioBased` sampler rely on
this randomness to make sampling decisions.
See `the specification on TraceIdRatioBased <https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/sdk.md#traceidratiobased>`_.
Returns:
A 128-bit int for use as a trace ID
"""
class RandomIdGenerator(IdGenerator):
"""The default ID generator for TracerProvider which randomly generates all
bits when generating IDs.
"""
def generate_span_id(self) -> int:
span_id = random.getrandbits(64)
while span_id == trace.INVALID_SPAN_ID:
span_id = random.getrandbits(64)
return span_id
def generate_trace_id(self) -> int:
trace_id = random.getrandbits(128)
while trace_id == trace.INVALID_TRACE_ID:
trace_id = random.getrandbits(128)
return trace_id
|
