Remove type-specific SumData (#4216)

* Remove type-specific SumData

* scare

exporters/logging-otlp/src/test/java/io/opentelemetry/exporter/logging/otlp/OtlpJsonLoggingMetricExporterTest.java

@@ -14,9 +14,9 @@ import io.opentelemetry.internal.testing.slf4j.SuppressLogger;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
 import io.opentelemetry.sdk.metrics.export.MetricExporter;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.util.Arrays;
 import org.junit.jupiter.api.BeforeEach;
@@ -38,7 +38,7 @@ class OtlpJsonLoggingMetricExporterTest {
           "metric1",
           "metric1 description",
           "m",
-          DoubleSumData.create(
+          ImmutableSumData.create(
               true,
               AggregationTemporality.CUMULATIVE,
               Arrays.asList(
@@ -51,7 +51,7 @@ class OtlpJsonLoggingMetricExporterTest {
           "metric2",
           "metric2 description",
           "s",
-          DoubleSumData.create(
+          ImmutableSumData.create(
               true,
               AggregationTemporality.CUMULATIVE,
               Arrays.asList(

exporters/logging/src/test/java/io/opentelemetry/exporter/logging/LoggingMetricExporterTest.java

@@ -13,13 +13,12 @@ import io.opentelemetry.internal.testing.slf4j.SuppressLogger;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryPointData;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
 import io.opentelemetry.sdk.metrics.data.ValueAtPercentile;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.io.ByteArrayOutputStream;
 import java.io.PrintStream;
@@ -87,7 +86,7 @@ class LoggingMetricExporterTest {
                 "counterOne",
                 "A simple counter",
                 "one",
-                LongSumData.create(
+                ImmutableSumData.create(
                     true,
                     AggregationTemporality.CUMULATIVE,
                     Collections.singletonList(
@@ -102,7 +101,7 @@ class LoggingMetricExporterTest {
                 "observedValue",
                 "an observer gauge",
                 "kb",
-                DoubleSumData.create(
+                ImmutableSumData.create(
                     true,
                     AggregationTemporality.CUMULATIVE,
                     Collections.singletonList(

exporters/otlp-http/metrics/src/test/java/io/opentelemetry/exporter/otlp/http/metrics/OtlpHttpMetricExporterTest.java

@@ -33,8 +33,8 @@ import io.opentelemetry.sdk.common.CompletableResultCode;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
@@ -329,7 +329,7 @@ class OtlpHttpMetricExporterTest {
         "name",
         "description",
         "1",
-        LongSumData.create(
+        ImmutableSumData.create(
             /* isMonotonic= */ true,
             AggregationTemporality.CUMULATIVE,
             Collections.singletonList(

exporters/otlp/common/src/test/java/io/opentelemetry/exporter/internal/otlp/metrics/MetricsRequestMarshalerTest.java

@@ -45,7 +45,6 @@ import io.opentelemetry.sdk.metrics.data.DoubleExemplarData;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramData;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramPointData;
 import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryPointData;
 import io.opentelemetry.sdk.metrics.data.ExponentialHistogramBuckets;
@@ -53,11 +52,11 @@ import io.opentelemetry.sdk.metrics.data.ExponentialHistogramData;
 import io.opentelemetry.sdk.metrics.data.ExponentialHistogramPointData;
 import io.opentelemetry.sdk.metrics.data.LongExemplarData;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
 import io.opentelemetry.sdk.metrics.data.PointData;
 import io.opentelemetry.sdk.metrics.data.ValueAtPercentile;
 import io.opentelemetry.sdk.metrics.internal.data.ImmutableGaugeData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
@@ -465,7 +464,7 @@ class MetricsRequestMarshalerTest {
                     "name",
                     "description",
                     "1",
-                    LongSumData.create(
+                    ImmutableSumData.create(
                         /* isMonotonic= */ true,
                         AggregationTemporality.CUMULATIVE,
                         singletonList(LongPointData.create(123, 456, KV_ATTR, 5))))))
@@ -500,7 +499,7 @@ class MetricsRequestMarshalerTest {
                     "name",
                     "description",
                     "1",
-                    DoubleSumData.create(
+                    ImmutableSumData.create(
                         /* isMonotonic= */ true,
                         AggregationTemporality.CUMULATIVE,
                         singletonList(DoublePointData.create(123, 456, KV_ATTR, 5.1))))))
@@ -539,7 +538,7 @@ class MetricsRequestMarshalerTest {
                     "name",
                     "description",
                     "1",
-                    LongSumData.create(
+                    ImmutableSumData.create(
                         /* isMonotonic= */ false,
                         AggregationTemporality.CUMULATIVE,
                         singletonList(LongPointData.create(123, 456, KV_ATTR, 5))))))
@@ -574,7 +573,7 @@ class MetricsRequestMarshalerTest {
                     "name",
                     "description",
                     "1",
-                    DoubleSumData.create(
+                    ImmutableSumData.create(
                         /* isMonotonic= */ false,
                         AggregationTemporality.CUMULATIVE,
                         singletonList(DoublePointData.create(123, 456, KV_ATTR, 5.1))))))
@@ -885,7 +884,7 @@ class MetricsRequestMarshalerTest {
                         "name",
                         "description",
                         "1",
-                        DoubleSumData.create(
+                        ImmutableSumData.create(
                             /* isMonotonic= */ true,
                             AggregationTemporality.CUMULATIVE,
                             Collections.singletonList(
@@ -896,7 +895,7 @@ class MetricsRequestMarshalerTest {
                         "name",
                         "description",
                         "1",
-                        DoubleSumData.create(
+                        ImmutableSumData.create(
                             /* isMonotonic= */ true,
                             AggregationTemporality.CUMULATIVE,
                             Collections.singletonList(
@@ -907,7 +906,7 @@ class MetricsRequestMarshalerTest {
                         "name",
                         "description",
                         "1",
-                        DoubleSumData.create(
+                        ImmutableSumData.create(
                             /* isMonotonic= */ true,
                             AggregationTemporality.CUMULATIVE,
                             Collections.singletonList(
@@ -918,7 +917,7 @@ class MetricsRequestMarshalerTest {
                         "name",
                         "description",
                         "1",
-                        DoubleSumData.create(
+                        ImmutableSumData.create(
                             /* isMonotonic= */ true,
                             AggregationTemporality.CUMULATIVE,
                             Collections.singletonList(

exporters/otlp/metrics/src/test/java/io/opentelemetry/exporter/otlp/metrics/OtlpGrpcMetricExporterTest.java

@@ -22,8 +22,8 @@ import io.opentelemetry.proto.metrics.v1.ResourceMetrics;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.time.Duration;
 import java.util.Collections;
@@ -116,7 +116,7 @@ class OtlpGrpcMetricExporterTest
         "name",
         "description",
         "1",
-        LongSumData.create(
+        ImmutableSumData.create(
             /* isMonotonic= */ true,
             AggregationTemporality.CUMULATIVE,
             Collections.singletonList(

exporters/otlp/metrics/src/testGrpcNetty/java/io/opentelemetry/exporter/otlp/metrics/OtlpGrpcNettyMetricExporterTest.java

@@ -22,8 +22,8 @@ import io.opentelemetry.proto.metrics.v1.ResourceMetrics;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.time.Duration;
 import java.util.Collections;
@@ -116,7 +116,7 @@ class OtlpGrpcNettyMetricExporterTest
         "name",
         "description",
         "1",
-        LongSumData.create(
+        ImmutableSumData.create(
             /* isMonotonic= */ true,
             AggregationTemporality.CUMULATIVE,
             Collections.singletonList(

exporters/otlp/metrics/src/testGrpcNettyShaded/java/io/opentelemetry/exporter/otlp/metrics/OtlpGrpcNettyShadedMetricExporterTest.java

@@ -20,8 +20,8 @@ import io.opentelemetry.proto.metrics.v1.ResourceMetrics;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.time.Duration;
 import java.util.Collections;
@@ -105,7 +105,7 @@ class OtlpGrpcNettyShadedMetricExporterTest
         "name",
         "description",
         "1",
-        LongSumData.create(
+        ImmutableSumData.create(
             /* isMonotonic= */ true,
             AggregationTemporality.CUMULATIVE,
             Collections.singletonList(

exporters/otlp/metrics/src/testGrpcOkhttp/java/io/opentelemetry/exporter/otlp/metrics/OtlpGrpcOkHttpMetricExporterTest.java

@@ -20,8 +20,8 @@ import io.opentelemetry.proto.metrics.v1.ResourceMetrics;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.time.Duration;
 import java.util.Collections;
@@ -105,7 +105,7 @@ class OtlpGrpcOkHttpMetricExporterTest
         "name",
         "description",
         "1",
-        LongSumData.create(
+        ImmutableSumData.create(
             /* isMonotonic= */ true,
             AggregationTemporality.CUMULATIVE,
             Collections.singletonList(

exporters/prometheus/src/main/java/io/opentelemetry/exporter/prometheus/MetricAdapter.java

@@ -13,15 +13,14 @@ import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.DoubleExemplarData;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramPointData;
 import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryPointData;
 import io.opentelemetry.sdk.metrics.data.ExemplarData;
 import io.opentelemetry.sdk.metrics.data.LongExemplarData;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
 import io.opentelemetry.sdk.metrics.data.MetricDataType;
 import io.opentelemetry.sdk.metrics.data.PointData;
+import io.opentelemetry.sdk.metrics.data.SumData;
 import io.opentelemetry.sdk.metrics.data.ValueAtPercentile;
 import io.prometheus.client.Collector;
 import io.prometheus.client.Collector.MetricFamilySamples;
@@ -78,14 +77,14 @@ final class MetricAdapter {
       case DOUBLE_GAUGE:
         return Collector.Type.GAUGE;
       case LONG_SUM:
-        LongSumData longSumData = metricData.getLongSumData();
+        SumData<LongPointData> longSumData = metricData.getLongSumData();
         if (longSumData.isMonotonic()
             && longSumData.getAggregationTemporality() == AggregationTemporality.CUMULATIVE) {
           return Collector.Type.COUNTER;
         }
         return Collector.Type.GAUGE;
       case DOUBLE_SUM:
-        DoubleSumData doubleSumData = metricData.getDoubleSumData();
+        SumData<DoublePointData> doubleSumData = metricData.getDoubleSumData();
         if (doubleSumData.isMonotonic()
             && doubleSumData.getAggregationTemporality() == AggregationTemporality.CUMULATIVE) {
           return Collector.Type.COUNTER;

exporters/prometheus/src/main/java/io/opentelemetry/exporter/prometheus/PrometheusType.java

@@ -6,9 +6,10 @@
 package io.opentelemetry.exporter.prometheus;
 
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
+import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
+import io.opentelemetry.sdk.metrics.data.LongPointData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
+import io.opentelemetry.sdk.metrics.data.SumData;
 
 // Four types we use are same in prometheus and openmetrics format
 enum PrometheusType {
@@ -29,14 +30,14 @@ enum PrometheusType {
       case DOUBLE_GAUGE:
         return GAUGE;
       case LONG_SUM:
-        LongSumData longSumData = metric.getLongSumData();
+        SumData<LongPointData> longSumData = metric.getLongSumData();
         if (longSumData.isMonotonic()
             && longSumData.getAggregationTemporality() == AggregationTemporality.CUMULATIVE) {
           return COUNTER;
         }
         return GAUGE;
       case DOUBLE_SUM:
-        DoubleSumData doubleSumData = metric.getDoubleSumData();
+        SumData<DoublePointData> doubleSumData = metric.getDoubleSumData();
         if (doubleSumData.isMonotonic()
             && doubleSumData.getAggregationTemporality() == AggregationTemporality.CUMULATIVE) {
           return COUNTER;

exporters/prometheus/src/test/java/io/opentelemetry/exporter/prometheus/MetricAdapterTest.java

@@ -18,16 +18,15 @@ import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramData;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramPointData;
 import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryPointData;
 import io.opentelemetry.sdk.metrics.data.LongExemplarData;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
 import io.opentelemetry.sdk.metrics.data.MetricDataType;
 import io.opentelemetry.sdk.metrics.data.ValueAtPercentile;
 import io.opentelemetry.sdk.metrics.internal.data.ImmutableGaugeData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import io.prometheus.client.Collector;
 import io.prometheus.client.Collector.MetricFamilySamples;
@@ -56,7 +55,7 @@ class MetricAdapterTest {
           "instrument.name",
           "description",
           "1",
-          DoubleSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ true,
               AggregationTemporality.CUMULATIVE,
               Collections.singletonList(
@@ -69,7 +68,7 @@ class MetricAdapterTest {
           "instrument.name",
           "description",
           "1",
-          DoubleSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ false,
               AggregationTemporality.CUMULATIVE,
               Collections.singletonList(
@@ -82,7 +81,7 @@ class MetricAdapterTest {
           "instrument.name",
           "description",
           "1",
-          DoubleSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ true,
               AggregationTemporality.DELTA,
               Collections.singletonList(
@@ -95,7 +94,7 @@ class MetricAdapterTest {
           "instrument.name",
           "description",
           "1",
-          DoubleSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ false,
               AggregationTemporality.DELTA,
               Collections.singletonList(
@@ -108,7 +107,7 @@ class MetricAdapterTest {
           "instrument.name",
           "description",
           "1",
-          LongSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ true,
               AggregationTemporality.CUMULATIVE,
               Collections.singletonList(
@@ -121,7 +120,7 @@ class MetricAdapterTest {
           "instrument.name",
           "description",
           "1",
-          LongSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ false,
               AggregationTemporality.CUMULATIVE,
               Collections.singletonList(
@@ -134,7 +133,7 @@ class MetricAdapterTest {
           "instrument.name",
           "description",
           "1",
-          LongSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ true,
               AggregationTemporality.DELTA,
               Collections.singletonList(
@@ -147,7 +146,7 @@ class MetricAdapterTest {
           "instrument.name",
           "description",
           "1",
-          LongSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ false,
               AggregationTemporality.DELTA,
               Collections.singletonList(

exporters/prometheus/src/test/java/io/opentelemetry/exporter/prometheus/PrometheusCollectorTest.java

@@ -16,11 +16,10 @@ import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.SdkMeterProvider;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
 import io.opentelemetry.sdk.metrics.export.MetricProducer;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import io.prometheus.client.CollectorRegistry;
 import io.prometheus.client.exporter.common.TextFormat;
@@ -83,7 +82,7 @@ class PrometheusCollectorTest {
             "grpc.name",
             "long_description",
             "1",
-            LongSumData.create(
+            ImmutableSumData.create(
                 /* isMonotonic= */ true,
                 AggregationTemporality.CUMULATIVE,
                 Collections.singletonList(
@@ -98,7 +97,7 @@ class PrometheusCollectorTest {
             "http.name",
             "double_description",
             "1",
-            DoubleSumData.create(
+            ImmutableSumData.create(
                 /* isMonotonic= */ true,
                 AggregationTemporality.CUMULATIVE,
                 Collections.singletonList(

exporters/prometheus/src/test/java/io/opentelemetry/exporter/prometheus/PrometheusHttpServerTest.java

@@ -21,11 +21,10 @@ import io.opentelemetry.api.common.Attributes;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
 import io.opentelemetry.sdk.metrics.export.MetricProducer;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.util.Collections;
 import org.junit.jupiter.api.AfterAll;
@@ -176,7 +175,7 @@ class PrometheusHttpServerTest {
             "grpc.name",
             "long_description",
             "1",
-            LongSumData.create(
+            ImmutableSumData.create(
                 /* isMonotonic= */ true,
                 AggregationTemporality.CUMULATIVE,
                 Collections.singletonList(
@@ -187,7 +186,7 @@ class PrometheusHttpServerTest {
             "http.name",
             "double_description",
             "1",
-            DoubleSumData.create(
+            ImmutableSumData.create(
                 /* isMonotonic= */ true,
                 AggregationTemporality.CUMULATIVE,
                 Collections.singletonList(

exporters/prometheus/src/test/java/io/opentelemetry/exporter/prometheus/SerializerTest.java

@@ -17,15 +17,14 @@ import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramData;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramPointData;
 import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryPointData;
 import io.opentelemetry.sdk.metrics.data.LongExemplarData;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
 import io.opentelemetry.sdk.metrics.data.ValueAtPercentile;
 import io.opentelemetry.sdk.metrics.internal.data.ImmutableGaugeData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
@@ -46,7 +45,7 @@ class SerializerTest {
           "instrument.name",
           "description",
           "1",
-          DoubleSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ true,
               AggregationTemporality.CUMULATIVE,
               Collections.singletonList(
@@ -59,7 +58,7 @@ class SerializerTest {
           "instrument.name",
           "description",
           "1",
-          DoubleSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ false,
               AggregationTemporality.CUMULATIVE,
               Collections.singletonList(
@@ -72,7 +71,7 @@ class SerializerTest {
           "instrument.name",
           "description",
           "1",
-          DoubleSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ true,
               AggregationTemporality.DELTA,
               Collections.singletonList(
@@ -85,7 +84,7 @@ class SerializerTest {
           "instrument.name",
           "description",
           "1",
-          DoubleSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ false,
               AggregationTemporality.DELTA,
               Collections.singletonList(
@@ -98,7 +97,7 @@ class SerializerTest {
           "instrument.name",
           "description",
           "1",
-          LongSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ true,
               AggregationTemporality.CUMULATIVE,
               Collections.singletonList(
@@ -111,7 +110,7 @@ class SerializerTest {
           "instrument.name",
           "description",
           "1",
-          LongSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ false,
               AggregationTemporality.CUMULATIVE,
               Collections.singletonList(
@@ -124,7 +123,7 @@ class SerializerTest {
           "instrument.name",
           "description",
           "1",
-          LongSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ true,
               AggregationTemporality.DELTA,
               Collections.singletonList(
@@ -137,7 +136,7 @@ class SerializerTest {
           "instrument.name",
           "description",
           "1",
-          LongSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ false,
               AggregationTemporality.DELTA,
               Collections.singletonList(

opencensus-shim/src/main/java/io/opentelemetry/opencensusshim/internal/metrics/MetricAdapter.java

@@ -26,16 +26,16 @@ import io.opentelemetry.sdk.metrics.data.DoubleExemplarData;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramData;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramPointData;
 import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryPointData;
 import io.opentelemetry.sdk.metrics.data.ExemplarData;
 import io.opentelemetry.sdk.metrics.data.GaugeData;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
+import io.opentelemetry.sdk.metrics.data.SumData;
 import io.opentelemetry.sdk.metrics.data.ValueAtPercentile;
 import io.opentelemetry.sdk.metrics.internal.data.ImmutableGaugeData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -145,13 +145,13 @@ public final class MetricAdapter {
     return ImmutableGaugeData.create(convertDoublePoints(censusMetric));
   }
 
-  static LongSumData convertLongSum(Metric censusMetric) {
+  static SumData<LongPointData> convertLongSum(Metric censusMetric) {
-    return LongSumData.create(
+    return ImmutableSumData.create(
         true, AggregationTemporality.CUMULATIVE, convertLongPoints(censusMetric));
   }
 
-  static DoubleSumData convertDoubleSum(Metric censusMetric) {
+  static SumData<DoublePointData> convertDoubleSum(Metric censusMetric) {
-    return DoubleSumData.create(
+    return ImmutableSumData.create(
         true, AggregationTemporality.CUMULATIVE, convertDoublePoints(censusMetric));
   }
 

sdk-extensions/autoconfigure/src/testOtlpGrpc/java/io/opentelemetry/sdk/autoconfigure/OtlpGrpcServerExtension.java

@@ -31,8 +31,8 @@ import io.opentelemetry.sdk.logs.data.LogData;
 import io.opentelemetry.sdk.logs.data.LogDataBuilder;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import io.opentelemetry.sdk.testing.trace.TestSpanData;
 import io.opentelemetry.sdk.trace.data.SpanData;
@@ -151,7 +151,7 @@ class OtlpGrpcServerExtension extends ServerExtension {
         "metric_name",
         "metric_description",
         "ms",
-        LongSumData.create(
+        ImmutableSumData.create(
             false,
             AggregationTemporality.CUMULATIVE,
             Collections.singletonList(

sdk-extensions/autoconfigure/src/testOtlpHttp/java/io/opentelemetry/sdk/autoconfigure/OtlpHttpServerExtension.java

@@ -26,8 +26,8 @@ import io.opentelemetry.sdk.logs.data.LogData;
 import io.opentelemetry.sdk.logs.data.LogDataBuilder;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import io.opentelemetry.sdk.testing.trace.TestSpanData;
 import io.opentelemetry.sdk.trace.data.SpanData;
@@ -134,7 +134,7 @@ class OtlpHttpServerExtension extends ServerExtension {
         "metric_name",
         "metric_description",
         "ms",
-        LongSumData.create(
+        ImmutableSumData.create(
             false,
             AggregationTemporality.CUMULATIVE,
             Collections.singletonList(

sdk/metrics-testing/src/main/java/io/opentelemetry/sdk/testing/assertj/DoubleSumDataAssert.java

@@ -1,26 +0,0 @@
-/*
- * Copyright The OpenTelemetry Authors
- * SPDX-License-Identifier: Apache-2.0
- */
-
-package io.opentelemetry.sdk.testing.assertj;
-
-import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
-import org.assertj.core.api.AbstractIterableAssert;
-import org.assertj.core.api.Assertions;
-
-/** Test assertions for {@link DoubleSumData}. */
-public class DoubleSumDataAssert extends AbstractSumDataAssert<DoubleSumDataAssert, DoubleSumData> {
-  protected DoubleSumDataAssert(DoubleSumData actual) {
-    super(actual, DoubleSumDataAssert.class);
-  }
-
-  /** Returns convenience API to assert against the {@code points} field. */
-  public AbstractIterableAssert<
-          ?, ? extends Iterable<? extends DoublePointData>, DoublePointData, ?>
-      points() {
-    isNotNull();
-    return Assertions.assertThat(actual.getPoints());
-  }
-}

sdk/metrics-testing/src/main/java/io/opentelemetry/sdk/testing/assertj/LongSumDataAssert.java

@@ -1,24 +0,0 @@
-/*
- * Copyright The OpenTelemetry Authors
- * SPDX-License-Identifier: Apache-2.0
- */
-
-package io.opentelemetry.sdk.testing.assertj;
-
-import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
-import org.assertj.core.api.AbstractIterableAssert;
-import org.assertj.core.api.Assertions;
-
-/** Test assertions for {@link LongSumData}. */
-public class LongSumDataAssert extends AbstractSumDataAssert<LongSumDataAssert, LongSumData> {
-  protected LongSumDataAssert(LongSumData actual) {
-    super(actual, LongSumDataAssert.class);
-  }
-
-  public AbstractIterableAssert<?, ? extends Iterable<? extends LongPointData>, LongPointData, ?>
-      points() {
-    isNotNull();
-    return Assertions.assertThat(actual.getPoints());
-  }
-}

sdk/metrics-testing/src/main/java/io/opentelemetry/sdk/testing/assertj/MetricAssertions.java

@@ -8,7 +8,6 @@ package io.opentelemetry.sdk.testing.assertj;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramData;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramPointData;
 import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryPointData;
 import io.opentelemetry.sdk.metrics.data.ExemplarData;
@@ -16,9 +15,9 @@ import io.opentelemetry.sdk.metrics.data.ExponentialHistogramBuckets;
 import io.opentelemetry.sdk.metrics.data.ExponentialHistogramPointData;
 import io.opentelemetry.sdk.metrics.data.GaugeData;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
 import io.opentelemetry.sdk.metrics.data.PointData;
+import io.opentelemetry.sdk.metrics.data.SumData;
 import org.assertj.core.api.Assertions;
 
 /** Test assertions for data heading to exporters within the Metrics SDK. */
@@ -69,9 +68,9 @@ public final class MetricAssertions extends Assertions {
     return new DoublePointDataAssert(point);
   }
 
-  /** Returns an assertion for {@link DoubleSumData}. */
+  /** Returns an assertion for {@link SumData}. */
-  public static DoubleSumDataAssert assertThat(DoubleSumData point) {
+  public static <T extends PointData> SumDataAssert<T> assertThat(SumData<T> point) {
-    return new DoubleSumDataAssert(point);
+    return new SumDataAssert<>(point);
   }
 
   /** Returns an assertion for {@link LongPointData}. */
@@ -79,11 +78,6 @@ public final class MetricAssertions extends Assertions {
     return new LongPointDataAssert(point);
   }
 
-  /** Returns an assertion for {@link LongSumData}. */
-  public static LongSumDataAssert assertThat(LongSumData metric) {
-    return new LongSumDataAssert(metric);
-  }
-
   public static ExemplarDataAssert assertThat(ExemplarData exemplar) {
     return new ExemplarDataAssert(exemplar);
   }

sdk/metrics-testing/src/main/java/io/opentelemetry/sdk/testing/assertj/MetricDataAssert.java

@@ -152,7 +152,7 @@ public class MetricDataAssert extends AbstractAssert<MetricDataAssert, MetricDat
    *
    * @return convenience API to assert against the {@code DoubleSum}.
    */
-  public DoubleSumDataAssert hasDoubleSum() {
+  public SumDataAssert<DoublePointData> hasDoubleSum() {
     isNotNull();
     if (actual.getType() != MetricDataType.DOUBLE_SUM) {
       failWithActualExpectedAndMessage(
@@ -162,7 +162,7 @@ public class MetricDataAssert extends AbstractAssert<MetricDataAssert, MetricDat
           MetricDataType.DOUBLE_SUM,
           actual.getType());
     }
-    return new DoubleSumDataAssert(actual.getDoubleSumData());
+    return new SumDataAssert<>(actual.getDoubleSumData());
   }
 
   /**
@@ -188,7 +188,7 @@ public class MetricDataAssert extends AbstractAssert<MetricDataAssert, MetricDat
    *
    * @return convenience API to assert against the {@code LongSum}.
    */
-  public LongSumDataAssert hasLongSum() {
+  public SumDataAssert<LongPointData> hasLongSum() {
     isNotNull();
     if (actual.getType() != MetricDataType.LONG_SUM) {
       failWithActualExpectedAndMessage(
@@ -198,7 +198,7 @@ public class MetricDataAssert extends AbstractAssert<MetricDataAssert, MetricDat
           MetricDataType.LONG_SUM,
           actual.getType());
     }
-    return new LongSumDataAssert(actual.getLongSumData());
+    return new SumDataAssert<>(actual.getLongSumData());
   }
 
   /**

sdk/metrics-testing/src/main/java/io/opentelemetry/sdk/testing/assertj/SumDataAssert.java

@@ -6,19 +6,21 @@
 package io.opentelemetry.sdk.testing.assertj;
 
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
+import io.opentelemetry.sdk.metrics.data.PointData;
 import io.opentelemetry.sdk.metrics.data.SumData;
 import org.assertj.core.api.AbstractAssert;
+import org.assertj.core.api.AbstractIterableAssert;
+import org.assertj.core.api.Assertions;
 
 /** Test assertions for {@link SumData}. */
-public class AbstractSumDataAssert<
+public class SumDataAssert<T extends PointData>
-        SumAssertT extends AbstractSumDataAssert<SumAssertT, SumT>, SumT extends SumData<?>>
+    extends AbstractAssert<SumDataAssert<T>, SumData<T>> {
-    extends AbstractAssert<SumAssertT, SumT> {
+  protected SumDataAssert(SumData<T> actual) {
-  protected AbstractSumDataAssert(SumT actual, Class<SumAssertT> assertClass) {
+    super(actual, SumDataAssert.class);
-    super(actual, assertClass);
   }
 
   /** Ensures that {@code is_monotonic} field is true. */
-  public SumAssertT isMonotonic() {
+  public SumDataAssert<T> isMonotonic() {
     isNotNull();
     if (!actual.isMonotonic()) {
       failWithActualExpectedAndMessage(
@@ -28,7 +30,7 @@ public class AbstractSumDataAssert<
   }
 
   /** Ensures that {@code is_monotonic} field is false. */
-  public SumAssertT isNotMonotonic() {
+  public SumDataAssert<T> isNotMonotonic() {
     isNotNull();
     if (actual.isMonotonic()) {
       failWithActualExpectedAndMessage(
@@ -41,7 +43,7 @@ public class AbstractSumDataAssert<
   }
 
   /** Ensures that {@code aggregation_temporality} field is {@code CUMULATIVE}. */
-  public SumAssertT isCumulative() {
+  public SumDataAssert<T> isCumulative() {
     isNotNull();
     if (actual.getAggregationTemporality() != AggregationTemporality.CUMULATIVE) {
       failWithActualExpectedAndMessage(
@@ -54,7 +56,7 @@ public class AbstractSumDataAssert<
   }
 
   /** Ensures that {@code aggregation_temporality} field is {@code DELTA}. */
-  public SumAssertT isDelta() {
+  public SumDataAssert<T> isDelta() {
     isNotNull();
     if (actual.getAggregationTemporality() != AggregationTemporality.DELTA) {
       failWithActualExpectedAndMessage(
@@ -65,4 +67,10 @@ public class AbstractSumDataAssert<
     }
     return myself;
   }
+
+  /** Returns convenience API to assert against the {@code points} field. */
+  public AbstractIterableAssert<?, ? extends Iterable<? extends T>, T, ?> points() {
+    isNotNull();
+    return Assertions.assertThat(actual.getPoints());
+  }
 }

sdk/metrics-testing/src/test/java/io/opentelemetry/sdk/testing/assertj/MetricAssertionsTest.java

@@ -19,16 +19,15 @@ import io.opentelemetry.sdk.metrics.data.DoubleExemplarData;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramData;
 import io.opentelemetry.sdk.metrics.data.DoubleHistogramPointData;
 import io.opentelemetry.sdk.metrics.data.DoublePointData;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryData;
 import io.opentelemetry.sdk.metrics.data.DoubleSummaryPointData;
 import io.opentelemetry.sdk.metrics.data.ExponentialHistogramData;
 import io.opentelemetry.sdk.metrics.data.LongExemplarData;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
 import io.opentelemetry.sdk.metrics.data.ValueAtPercentile;
 import io.opentelemetry.sdk.metrics.internal.data.ImmutableGaugeData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.util.Arrays;
 import java.util.Collections;
@@ -116,7 +115,7 @@ public class MetricAssertionsTest {
           /* name= */ "sum",
           /* description= */ "description",
           /* unit= */ "unit",
-          DoubleSumData.create(
+          ImmutableSumData.create(
               true,
               AggregationTemporality.CUMULATIVE,
               // Points
@@ -129,7 +128,7 @@ public class MetricAssertionsTest {
           /* name= */ "sum_delta",
           /* description= */ "description",
           /* unit= */ "unit",
-          DoubleSumData.create(
+          ImmutableSumData.create(
               false,
               AggregationTemporality.DELTA,
               // Points
@@ -171,7 +170,7 @@ public class MetricAssertionsTest {
           /* name= */ "sum",
           /* description= */ "description",
           /* unit= */ "unit",
-          LongSumData.create(
+          ImmutableSumData.create(
               true,
               AggregationTemporality.CUMULATIVE,
               // Points
@@ -184,7 +183,7 @@ public class MetricAssertionsTest {
           /* name= */ "sum_delta",
           /* description= */ "description",
           /* unit= */ "unit",
-          LongSumData.create(
+          ImmutableSumData.create(
               false,
               AggregationTemporality.DELTA,
               // Points

sdk/metrics-testing/src/test/java/io/opentelemetry/sdk/testing/exporter/InMemoryMetricExporterTest.java

@@ -11,8 +11,8 @@ import io.opentelemetry.api.common.Attributes;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -34,7 +34,7 @@ class InMemoryMetricExporterTest {
         "name",
         "description",
         "1",
-        LongSumData.create(
+        ImmutableSumData.create(
             /* isMonotonic= */ true,
             AggregationTemporality.CUMULATIVE,
             Collections.singletonList(

sdk/metrics/src/main/java/io/opentelemetry/sdk/metrics/data/DoubleSumData.java

@@ -1,28 +0,0 @@
-/*
- * Copyright The OpenTelemetry Authors
- * SPDX-License-Identifier: Apache-2.0
- */
-
-package io.opentelemetry.sdk.metrics.data;
-
-import com.google.auto.value.AutoValue;
-import java.util.Collection;
-import java.util.Collections;
-import javax.annotation.concurrent.Immutable;
-
-/** {@link SumData} recorded uses {@code double}s. */
-@Immutable
-@AutoValue
-public abstract class DoubleSumData implements SumData<DoublePointData> {
-
-  static final DoubleSumData EMPTY =
-      DoubleSumData.create(
-          /* isMonotonic= */ false, AggregationTemporality.CUMULATIVE, Collections.emptyList());
-
-  DoubleSumData() {}
-
-  public static DoubleSumData create(
-      boolean isMonotonic, AggregationTemporality temporality, Collection<DoublePointData> points) {
-    return new AutoValue_DoubleSumData(points, isMonotonic, temporality);
-  }
-}

sdk/metrics/src/main/java/io/opentelemetry/sdk/metrics/data/LongSumData.java

@@ -1,28 +0,0 @@
-/*
- * Copyright The OpenTelemetry Authors
- * SPDX-License-Identifier: Apache-2.0
- */
-
-package io.opentelemetry.sdk.metrics.data;
-
-import com.google.auto.value.AutoValue;
-import java.util.Collection;
-import java.util.Collections;
-import javax.annotation.concurrent.Immutable;
-
-/** {@link SumData} recorded uses {@code long}s. */
-@Immutable
-@AutoValue
-public abstract class LongSumData implements SumData<LongPointData> {
-
-  static final LongSumData EMPTY =
-      LongSumData.create(
-          /* isMonotonic= */ false, AggregationTemporality.CUMULATIVE, Collections.emptyList());
-
-  public static LongSumData create(
-      boolean isMonotonic, AggregationTemporality temporality, Collection<LongPointData> points) {
-    return new AutoValue_LongSumData(points, isMonotonic, temporality);
-  }
-
-  LongSumData() {}
-}

sdk/metrics/src/main/java/io/opentelemetry/sdk/metrics/data/MetricData.java

@@ -7,6 +7,7 @@ package io.opentelemetry.sdk.metrics.data;
 
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.internal.data.ImmutableGaugeData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import javax.annotation.concurrent.Immutable;
 
@@ -72,7 +73,7 @@ public interface MetricData {
       String name,
       String description,
       String unit,
-      DoubleSumData data) {
+      SumData<DoublePointData> data) {
     return MetricDataImpl.create(
         resource,
         instrumentationLibraryInfo,
@@ -94,7 +95,7 @@ public interface MetricData {
       String name,
       String description,
       String unit,
-      LongSumData data) {
+      SumData<LongPointData> data) {
     return MetricDataImpl.create(
         resource,
         instrumentationLibraryInfo,
@@ -262,11 +263,12 @@ public interface MetricData {
    * @return the {@code DoubleSumData} if type is {@link MetricDataType#DOUBLE_SUM}, otherwise a
    *     default empty data.
    */
-  default DoubleSumData getDoubleSumData() {
+  @SuppressWarnings("unchecked")
+  default SumData<DoublePointData> getDoubleSumData() {
     if (getType() == MetricDataType.DOUBLE_SUM) {
-      return (DoubleSumData) getData();
+      return (ImmutableSumData<DoublePointData>) getData();
     }
-    return DoubleSumData.EMPTY;
+    return ImmutableSumData.empty();
   }
 
   /**
@@ -276,11 +278,12 @@ public interface MetricData {
    * @return the {@code LongSumData} if type is {@link MetricDataType#LONG_SUM}, otherwise a default
    *     empty data.
    */
-  default LongSumData getLongSumData() {
+  @SuppressWarnings("unchecked")
+  default SumData<LongPointData> getLongSumData() {
     if (getType() == MetricDataType.LONG_SUM) {
-      return (LongSumData) getData();
+      return (SumData<LongPointData>) getData();
     }
-    return LongSumData.EMPTY;
+    return ImmutableSumData.empty();
   }
 
   /**

sdk/metrics/src/main/java/io/opentelemetry/sdk/metrics/data/MetricDataType.java

@@ -19,10 +19,10 @@ public enum MetricDataType {
    */
   DOUBLE_GAUGE,
 
-  /** A sum of non negative long (int64) values. Reports {@link LongSumData} data. */
+  /** A sum of non negative long (int64) values. */
   LONG_SUM,
 
-  /** A sum of non negative double values. Reports {@link DoubleSumData} data. */
+  /** A sum of non negative double values. */
   DOUBLE_SUM,
 
   /**

sdk/metrics/src/main/java/io/opentelemetry/sdk/metrics/internal/aggregator/DoubleSumAggregator.java

@@ -9,12 +9,12 @@ import io.opentelemetry.api.common.Attributes;
 import io.opentelemetry.context.Context;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
-import io.opentelemetry.sdk.metrics.data.DoubleSumData;
 import io.opentelemetry.sdk.metrics.data.ExemplarData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
 import io.opentelemetry.sdk.metrics.exemplar.ExemplarReservoir;
 import io.opentelemetry.sdk.metrics.internal.concurrent.AdderUtil;
 import io.opentelemetry.sdk.metrics.internal.concurrent.DoubleAdder;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.metrics.internal.descriptor.InstrumentDescriptor;
 import io.opentelemetry.sdk.metrics.internal.descriptor.MetricDescriptor;
 import io.opentelemetry.sdk.resources.Resource;
@@ -85,7 +85,7 @@ public final class DoubleSumAggregator extends AbstractSumAggregator<DoubleAccum
         descriptor.getName(),
         descriptor.getDescription(),
         descriptor.getUnit(),
-        DoubleSumData.create(
+        ImmutableSumData.create(
             isMonotonic(),
             temporality,
             MetricDataUtils.toDoublePointList(

sdk/metrics/src/main/java/io/opentelemetry/sdk/metrics/internal/aggregator/LongSumAggregator.java

@@ -9,11 +9,11 @@ import io.opentelemetry.api.common.Attributes;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.ExemplarData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
 import io.opentelemetry.sdk.metrics.exemplar.ExemplarReservoir;
 import io.opentelemetry.sdk.metrics.internal.concurrent.AdderUtil;
 import io.opentelemetry.sdk.metrics.internal.concurrent.LongAdder;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.metrics.internal.descriptor.InstrumentDescriptor;
 import io.opentelemetry.sdk.metrics.internal.descriptor.MetricDescriptor;
 import io.opentelemetry.sdk.resources.Resource;
@@ -72,7 +72,7 @@ public final class LongSumAggregator extends AbstractSumAggregator<LongAccumulat
         descriptor.getName(),
         descriptor.getDescription(),
         descriptor.getUnit(),
-        LongSumData.create(
+        ImmutableSumData.create(
             isMonotonic(),
             temporality,
             MetricDataUtils.toLongPointList(

sdk/metrics/src/main/java/io/opentelemetry/sdk/metrics/internal/data/ImmutableSumData.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.sdk.metrics.internal.data;
+
+import com.google.auto.value.AutoValue;
+import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
+import io.opentelemetry.sdk.metrics.data.DoublePointData;
+import io.opentelemetry.sdk.metrics.data.PointData;
+import io.opentelemetry.sdk.metrics.data.SumData;
+import java.util.Collection;
+import java.util.Collections;
+import javax.annotation.concurrent.Immutable;
+
+/**
+ * {@link SumData} recorded uses {@code double}s.
+ *
+ * <p>This class is internal and is hence not for public use. Its APIs are unstable and can change
+ * at any time.
+ */
+@Immutable
+@AutoValue
+public abstract class ImmutableSumData<T extends PointData> implements SumData<T> {
+
+  static final ImmutableSumData<DoublePointData> EMPTY =
+      ImmutableSumData.create(
+          /* isMonotonic= */ false, AggregationTemporality.CUMULATIVE, Collections.emptyList());
+
+  // Type doesn't matter for an empty list.
+  @SuppressWarnings("unchecked")
+  public static <T extends PointData> ImmutableSumData<T> empty() {
+    return (ImmutableSumData<T>) EMPTY;
+  }
+
+  public static <T extends PointData> ImmutableSumData<T> create(
+      boolean isMonotonic, AggregationTemporality temporality, Collection<T> points) {
+    return new AutoValue_ImmutableSumData<>(points, isMonotonic, temporality);
+  }
+
+  ImmutableSumData() {}
+}

sdk/metrics/src/test/java/io/opentelemetry/sdk/metrics/data/MetricDataImplTest.java

@@ -13,6 +13,7 @@ import io.opentelemetry.api.common.AttributeKey;
 import io.opentelemetry.api.common.Attributes;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.internal.data.ImmutableGaugeData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.util.Arrays;
 import java.util.Collections;
@@ -98,7 +99,7 @@ class MetricDataImplTest {
             "metric_name",
             "metric_description",
             "ms",
-            LongSumData.create(
+            ImmutableSumData.create(
                 /* isMonotonic= */ false,
                 AggregationTemporality.CUMULATIVE,
                 Collections.singletonList(LONG_POINT)));
@@ -130,7 +131,7 @@ class MetricDataImplTest {
             "metric_name",
             "metric_description",
             "ms",
-            DoubleSumData.create(
+            ImmutableSumData.create(
                 /* isMonotonic= */ false,
                 AggregationTemporality.CUMULATIVE,
                 Collections.singletonList(DOUBLE_POINT)));

sdk/metrics/src/test/java/io/opentelemetry/sdk/metrics/export/PeriodicMetricReaderTest.java

@@ -20,8 +20,8 @@ import io.opentelemetry.sdk.common.CompletableResultCode;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.metrics.data.AggregationTemporality;
 import io.opentelemetry.sdk.metrics.data.LongPointData;
-import io.opentelemetry.sdk.metrics.data.LongSumData;
 import io.opentelemetry.sdk.metrics.data.MetricData;
+import io.opentelemetry.sdk.metrics.internal.data.ImmutableSumData;
 import io.opentelemetry.sdk.resources.Resource;
 import java.time.Duration;
 import java.util.ArrayList;
@@ -57,7 +57,7 @@ class PeriodicMetricReaderTest {
           "my metric",
           "my metric description",
           "us",
-          LongSumData.create(
+          ImmutableSumData.create(
               /* isMonotonic= */ true, AggregationTemporality.CUMULATIVE, LONG_POINT_LIST));
 
   @Mock private MetricProducer metricProducer;