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ext/jaeger - Transform resource to tags when exporting #645

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merged 9 commits into from
May 19, 2020
Merged

ext/jaeger - Transform resource to tags when exporting #645

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ext/jaeger - Transform resource to tags when exporting
nirsky May 4, 2020
d756f58
Check for empty resource instead of None
nirsky May 5, 2020
1d20465
Merge branch 'master' into feat/jaeger/resource
nirsky May 5, 2020
82e103a
linting
nirsky May 5, 2020
7d4ba99
Merge branch 'feat/jaeger/resource' of https://github.com/nirsky/open…
nirsky May 5, 2020
12da24a
linting
nirsky May 5, 2020
007165e
Merge branch 'master' into feat/jaeger/resource
nirsky May 6, 2020
6559eec
Merge branch 'master' into feat/jaeger/resource
toumorokoshi May 17, 2020
3127e73
Revert exposing resource
nirsky May 18, 2020
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3 changes: 3 additions & 0 deletions ext/opentelemetry-ext-jaeger/src/opentelemetry/ext/jaeger/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,7 @@

import opentelemetry.trace as trace_api
from opentelemetry.ext.jaeger.gen.agent import Agent as agent
from opentelemetry.sdk.resources import EMPTY_RESOURCE
from opentelemetry.ext.jaeger.gen.jaeger import Collector as jaeger
from opentelemetry.sdk.trace.export import Span, SpanExporter, SpanExportResult
from opentelemetry.trace.status import StatusCanonicalCode
Expand Down Expand Up @@ -197,6 +198,8 @@ def _translate_to_jaeger(spans: Span):
parent_id = span.parent.span_id if span.parent else 0

tags = _extract_tags(span.attributes)
if span.resource is not EMPTY_RESOURCE:
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is this necessary? feels like it adds conditional logic for a very nominal (maybe 500ns on a modern processor at most) improvement.

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also I don't believe this is completely correct. Currently in the SDK, the Span.resource attribute can be None as well.

This can be simplified to a Falsy check (if span.resource) to cover both cases.

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Ok, so I'm gonna revert the exposing of EMPTY_RESOURCE and just make the simple Falsy check.
@mauriciovasquezbernal, are you ok with that?

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Yes, I'm ok with that, sorry for the confusion.

tags.extend(_extract_tags(span.resource.labels))

tags.extend(
[
Expand Down
14 changes: 11 additions & 3 deletions ext/opentelemetry-ext-jaeger/tests/test_jaeger_exporter.py
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Expand Up @@ -22,6 +22,7 @@
from opentelemetry import trace as trace_api
from opentelemetry.ext.jaeger.gen.jaeger import ttypes as jaeger
from opentelemetry.sdk import trace
from opentelemetry.sdk.trace import Resource
from opentelemetry.trace.status import Status, StatusCanonicalCode


Expand All @@ -34,7 +35,7 @@ def setUp(self):
is_remote=False,
)

self._test_span = trace.Span("test_span", context=context)
self._test_span = trace.Span("test_span", context=context, resource=Resource.create_empty())
self._test_span.start()
self._test_span.end()

Expand Down Expand Up @@ -189,16 +190,18 @@ def test_translate_to_jaeger(self):
kind=trace_api.SpanKind.CLIENT,
),
trace.Span(
name=span_names[1], context=parent_context, parent=None
name=span_names[1], context=parent_context, parent=None, resource=Resource.create_empty()
),
trace.Span(name=span_names[2], context=other_context, parent=None),
trace.Span(name=span_names[2], context=other_context, parent=None, resource=Resource.create_empty()),
]

otel_spans[0].start(start_time=start_times[0])
# added here to preserve order
otel_spans[0].set_attribute("key_bool", False)
otel_spans[0].set_attribute("key_string", "hello_world")
otel_spans[0].set_attribute("key_float", 111.22)
#
otel_spans[0].resource = Resource(labels={ "key_resource": "some_resource" })
otel_spans[0].set_status(
Status(StatusCanonicalCode.UNKNOWN, "Example description")
)
Expand Down Expand Up @@ -237,6 +240,11 @@ def test_translate_to_jaeger(self):
vType=jaeger.TagType.DOUBLE,
vDouble=111.22,
),
jaeger.Tag(
key="key_resource",
vType=jaeger.TagType.STRING,
vStr="some_resource"
),
jaeger.Tag(
key="status.code",
vType=jaeger.TagType.LONG,
Expand Down
6 changes: 3 additions & 3 deletions opentelemetry-sdk/src/opentelemetry/sdk/resources/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,12 +25,12 @@ def __init__(self, labels: Labels):
@staticmethod
def create(labels: Labels) -> "Resource":
if not labels:
return _EMPTY_RESOURCE
return EMPTY_RESOURCE
return Resource(labels)

@staticmethod
def create_empty() -> "Resource":
return _EMPTY_RESOURCE
return EMPTY_RESOURCE

@property
def labels(self) -> Labels:
Expand All @@ -50,4 +50,4 @@ def __eq__(self, other: object) -> bool:
return self._labels == other._labels


_EMPTY_RESOURCE = Resource({})
EMPTY_RESOURCE = Resource({})
2 changes: 1 addition & 1 deletion opentelemetry-sdk/tests/metrics/test_metrics.py
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Expand Up @@ -31,7 +31,7 @@ def test_resource_empty(self):
meter_provider = metrics.MeterProvider()
meter = meter_provider.get_meter(__name__)
# pylint: disable=protected-access
self.assertIs(meter.resource, resources._EMPTY_RESOURCE)
self.assertIs(meter.resource, resources.EMPTY_RESOURCE)


class TestMeter(unittest.TestCase):
Expand Down
6 changes: 3 additions & 3 deletions opentelemetry-sdk/tests/resources/test_resources.py
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Expand Up @@ -33,13 +33,13 @@ def test_create(self):
self.assertEqual(resource.labels, labels)

resource = resources.Resource.create_empty()
self.assertIs(resource, resources._EMPTY_RESOURCE)
self.assertIs(resource, resources.EMPTY_RESOURCE)

resource = resources.Resource.create(None)
self.assertIs(resource, resources._EMPTY_RESOURCE)
self.assertIs(resource, resources.EMPTY_RESOURCE)

resource = resources.Resource.create({})
self.assertIs(resource, resources._EMPTY_RESOURCE)
self.assertIs(resource, resources.EMPTY_RESOURCE)

def test_resource_merge(self):
left = resources.Resource({"service": "ui"})
Expand Down
2 changes: 1 addition & 1 deletion opentelemetry-sdk/tests/trace/test_trace.py
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Original file line number Diff line number Diff line change
Expand Up @@ -388,7 +388,7 @@ def test_default_span_resource(self):
tracer = tracer_provider.get_tracer(__name__)
span = tracer.start_span("root")
# pylint: disable=protected-access
self.assertIs(span.resource, resources._EMPTY_RESOURCE)
self.assertIs(span.resource, resources.EMPTY_RESOURCE)

def test_span_context_remote_flag(self):
tracer = new_tracer()
Expand Down