Polish before release (#30)

README.md

@@ -23,16 +23,16 @@ pip install opentelemetry-exporter-dynatrace-metrics
 The general setup of OpenTelemetry Python is explained in the official [Getting Started Guide](https://open-telemetry.github.io/opentelemetry-python/getting-started.html#add-metrics).
 
 ```python
-
 # setup metrics export pipeline
 metrics.set_meter_provider(MeterProvider(
-        # configure Exporter/MetricReader combination with a 5000ms export
-        # interval, endpoint url and API token.
-        metric_readers=[configure_dynatrace_metrics_export(
+    # configure Exporter/MetricReader combination with a 5000ms export
+    # interval, endpoint url and API token.
+    metric_readers=[
+        configure_dynatrace_metrics_export(
             export_interval_millis=5000,
             endpoint_url=endpoint_url,
             api_token=api_token)
-        ]))
+    ]))
 
 # get a meter
 meter = metrics.get_meter(__name__)

src/dynatrace/opentelemetry/metrics/export/__init__.py

@@ -14,36 +14,24 @@
 
 from typing import Mapping, Optional
 
-import opentelemetry.sdk.metrics as metrics
+from dynatrace.opentelemetry.metrics.export._exporter import (
+    _DynatraceMetricsExporter,
+)
 from opentelemetry.sdk.metrics.export import (
-    AggregationTemporality,
     PeriodicExportingMetricReader,
-    MetricReader
-)
-
-from dynatrace.opentelemetry.metrics.export._exporter import (
-    _DynatraceMetricsExporter
+    MetricReader,
 )
 
-VERSION = "0.3.0-rc2"
-
-_DYNATRACE_TEMPORALITY_PREFERENCE = {
-    metrics.Counter: AggregationTemporality.DELTA,
-    metrics.UpDownCounter: AggregationTemporality.CUMULATIVE,
-    metrics.Histogram: AggregationTemporality.DELTA,
-    metrics.ObservableCounter: AggregationTemporality.DELTA,
-    metrics.ObservableUpDownCounter: AggregationTemporality.CUMULATIVE,
-    metrics.ObservableGauge: AggregationTemporality.CUMULATIVE,
-}
+VERSION = "0.3.0"
 
 
 def configure_dynatrace_metrics_export(
-        endpoint_url: Optional[str] = None,
-        api_token: Optional[str] = None,
-        prefix: Optional[str] = None,
-        default_dimensions: Optional[Mapping[str, str]] = None,
-        export_dynatrace_metadata: Optional[bool] = False,
-        export_interval_millis: Optional[float] = None
+    endpoint_url: Optional[str] = None,
+    api_token: Optional[str] = None,
+    prefix: Optional[str] = None,
+    default_dimensions: Optional[Mapping[str, str]] = None,
+    export_dynatrace_metadata: Optional[bool] = False,
+    export_interval_millis: Optional[float] = None
 ) -> MetricReader:
     """
     Configures and creates a PeriodicExportingMetricReader and
@@ -91,6 +79,5 @@ def configure_dynatrace_metrics_export(
             prefix=prefix,
             default_dimensions=default_dimensions,
             export_dynatrace_metadata=export_dynatrace_metadata,
-            preferred_temporality=_DYNATRACE_TEMPORALITY_PREFERENCE,
         )
     )

src/dynatrace/opentelemetry/metrics/export/_exporter.py

@@ -13,26 +13,36 @@
 # limitations under the License.
 
 import logging
-from typing import Mapping, Optional, Dict
+from typing import Mapping, Optional
 
 import requests
 from dynatrace.metric.utils import (
     DynatraceMetricsSerializer,
-    MetricError, DynatraceMetricsApiConstants
+    MetricError,
+    DynatraceMetricsApiConstants,
+)
+from dynatrace.opentelemetry.metrics.export._factory import (
+    _OTelDynatraceMetricsFactory,
 )
 from opentelemetry.sdk.metrics.export import (
     MetricExporter,
     MetricExportResult,
-    MetricsData
+    MetricsData,
 )
-from opentelemetry.sdk.metrics._internal.aggregation import (
+
+import opentelemetry.sdk.metrics as metrics
+from opentelemetry.sdk.metrics.export import (
     AggregationTemporality,
 )
-from opentelemetry.sdk.metrics.view import Aggregation
 
-from dynatrace.opentelemetry.metrics.export._factory import (
-    _OTelDynatraceMetricsFactory
-)
+_DYNATRACE_TEMPORALITY_PREFERENCE = {
+    metrics.Counter: AggregationTemporality.DELTA,
+    metrics.UpDownCounter: AggregationTemporality.CUMULATIVE,
+    metrics.Histogram: AggregationTemporality.DELTA,
+    metrics.ObservableCounter: AggregationTemporality.DELTA,
+    metrics.ObservableUpDownCounter: AggregationTemporality.CUMULATIVE,
+    metrics.ObservableGauge: AggregationTemporality.CUMULATIVE,
+}
 
 
 class _DynatraceMetricsExporter(MetricExporter):
@@ -45,19 +55,17 @@ class _DynatraceMetricsExporter(MetricExporter):
     """
 
     def __init__(
-            self,
-            endpoint_url: Optional[str] = None,
-            api_token: Optional[str] = None,
-            prefix: Optional[str] = None,
-            default_dimensions: Optional[Mapping[str, str]] = None,
-            export_dynatrace_metadata: Optional[bool] = False,
-            preferred_temporality: Dict[type, AggregationTemporality] = None,
-            preferred_aggregation: Dict[
-                type, Aggregation
-            ] = None,
+        self,
+        endpoint_url: Optional[str] = None,
+        api_token: Optional[str] = None,
+        prefix: Optional[str] = None,
+        default_dimensions: Optional[Mapping[str, str]] = None,
+        export_dynatrace_metadata: Optional[bool] = False,
     ):
-        super().__init__(preferred_temporality=preferred_temporality,
-                         preferred_aggregation=preferred_aggregation)
+        super().__init__(
+            preferred_temporality=_DYNATRACE_TEMPORALITY_PREFERENCE,
+            preferred_aggregation=None
+        )
         self.__logger = logging.getLogger(__name__)
 
         if endpoint_url:

test/test_exporter.py

@@ -11,18 +11,20 @@
 # 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 math
 import re
 import unittest
-from unittest import mock
-
-import requests
-
 from typing import Sequence, Union
+from unittest import mock
 from unittest.mock import patch
 
+import requests
+from dynatrace.opentelemetry.metrics.export import (
+    _DynatraceMetricsExporter,
+    configure_dynatrace_metrics_export,
+)
 from opentelemetry.sdk.metrics import MeterProvider
-from opentelemetry.sdk.metrics.view import View
 from opentelemetry.sdk.metrics.export import (
     Metric,
     MetricExportResult,
@@ -35,18 +37,13 @@
     DataT,
     ResourceMetrics,
     ScopeMetrics,
-    HistogramDataPoint
+    HistogramDataPoint,
 )
+from opentelemetry.sdk.metrics.view import View
 from opentelemetry.sdk.resources import Resource
 from opentelemetry.sdk.util.instrumentation import InstrumentationScope
 from parameterized import parameterized
 
-from dynatrace.opentelemetry.metrics.export import (
-    _DynatraceMetricsExporter,
-    _DYNATRACE_TEMPORALITY_PREFERENCE,
-    configure_dynatrace_metrics_export
-)
-
 
 class AnyStringMatching(str):
     def __eq__(self, other):
@@ -490,9 +487,7 @@ def test_multiple_records(self, mock_post):
     def test_view(self, mock_post):
         mock_post.return_value = self._get_session_response()
 
-        exporter = _DynatraceMetricsExporter(
-            preferred_temporality=_DYNATRACE_TEMPORALITY_PREFERENCE,
-        )
+        exporter = _DynatraceMetricsExporter()
 
         metric_reader = PeriodicExportingMetricReader(
             export_interval_millis=3600000,
@@ -536,7 +531,6 @@ def test_configuration_default(self):
                     prefix=None,
                     default_dimensions=None,
                     export_dynatrace_metadata=False,
-                    preferred_temporality=_DYNATRACE_TEMPORALITY_PREFERENCE,
                 )
                 mock_reader.assert_called_once_with(
                     export_interval_millis=None,
@@ -568,7 +562,6 @@ def test_configuration_custom(self):
                     prefix="otel.python.test",
                     default_dimensions={"defaultKey": "defaultValue"},
                     export_dynatrace_metadata=True,
-                    preferred_temporality=_DYNATRACE_TEMPORALITY_PREFERENCE,
                 )
                 mock_reader.assert_called_once_with(
                     export_interval_millis=100,