First propagation of filter and reservoir factory

Author: fcollonval

opentelemetry-sdk/src/opentelemetry/sdk/metrics/__init__.py

@@ -15,6 +15,7 @@
 
 from opentelemetry.sdk.metrics._internal import Meter, MeterProvider
 from opentelemetry.sdk.metrics._internal.exceptions import MetricsTimeoutError
+from opentelemetry.sdk.metrics._internal.exemplar import ExemplarFilter, ExemplarReservoir
 from opentelemetry.sdk.metrics._internal.instrument import Counter
 from opentelemetry.sdk.metrics._internal.instrument import Gauge as _Gauge
 from opentelemetry.sdk.metrics._internal.instrument import (
@@ -26,6 +27,8 @@
 )
 
 __all__ = [
+    "ExemplarFilter",
+    "ExemplarReservoir",
     "Meter",
     "MeterProvider",
     "MetricsTimeoutError",

opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/__init__.py

@@ -35,6 +35,7 @@
 from opentelemetry.metrics import _Gauge as APIGauge
 from opentelemetry.sdk.environment_variables import OTEL_SDK_DISABLED
 from opentelemetry.sdk.metrics._internal.exceptions import MetricsTimeoutError
+from opentelemetry.sdk.metrics._internal.exemplar import ExemplarFilter, TraceBasedExemplarFilter
 from opentelemetry.sdk.metrics._internal.instrument import (
     _Counter,
     _Gauge,
@@ -381,6 +382,7 @@ def __init__(
             "opentelemetry.sdk.metrics.export.MetricReader"
         ] = (),
         resource: Resource = None,
+        exemplar_filter: Optional[ExemplarFilter] = None,
         shutdown_on_exit: bool = True,
         views: Sequence["opentelemetry.sdk.metrics.view.View"] = (),
     ):
@@ -390,6 +392,7 @@ def __init__(
         if resource is None:
             resource = Resource.create({})
         self._sdk_config = SdkConfiguration(
+            exemplar_filter = TraceBasedExemplarFilter() if exemplar_filter is None else exemplar_filter,
             resource=resource,
             metric_readers=metric_readers,
             views=views,

opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/_view_instrument_match.py

@@ -81,7 +81,7 @@ def conflicts(self, other: "_ViewInstrumentMatch") -> bool:
         return result
 
     # pylint: disable=protected-access
-    def consume_measurement(self, measurement: Measurement) -> None:
+    def consume_measurement(self, measurement: Measurement, should_sample_exemplar: bool = True) -> None:
 
         if self._view._attribute_keys is not None:
 
@@ -107,6 +107,7 @@ def consume_measurement(self, measurement: Measurement) -> None:
                             self._view._aggregation._create_aggregation(
                                 self._instrument,
                                 attributes,
+                                self._view._exemplar_reservoir_factory,
                                 self._start_time_unix_nano,
                             )
                         )
@@ -116,11 +117,12 @@ def consume_measurement(self, measurement: Measurement) -> None:
                         ]._create_aggregation(
                             self._instrument,
                             attributes,
+                            self._view._exemplar_reservoir_factory,
                             self._start_time_unix_nano,
                         )
                     self._attributes_aggregation[aggr_key] = aggregation
 
-        self._attributes_aggregation[aggr_key].aggregate(measurement)
+        self._attributes_aggregation[aggr_key].aggregate(measurement, should_sample_exemplar)
 
     def collect(
         self,