remove generic

src/OpenTelemetry/Metrics/Export/LongSumData.cs

@@ -1,4 +1,4 @@
-// <copyright file="SumData.cs" company="OpenTelemetry Authors">
+// <copyright file="LongSumData.cs" company="OpenTelemetry Authors">
 // Copyright 2018, OpenTelemetry Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,8 +16,8 @@
 
 namespace OpenTelemetry.Metrics.Export
 {
-    public class SumData<T> : MetricData<T>
+    public class LongSumData : MetricData
     {
-        public T Sum { get; set; }
+        public long Sum { get; set; }
     }
 }

src/OpenTelemetry/Metrics/Export/LongSummaryData.cs

@@ -1,4 +1,4 @@
-// <copyright file="SummaryData.cs" company="OpenTelemetry Authors">
+// <copyright file="LongSummaryData.cs" company="OpenTelemetry Authors">
 // Copyright 2018, OpenTelemetry Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -23,14 +23,14 @@ using System.Threading.Tasks;
 
 namespace OpenTelemetry.Metrics.Export
 {
-    public class SummaryData<T> : MetricData<T>
+    public class LongSummaryData : MetricData
     {
         public long Count { get; set; }
 
-        public T Sum { get; set; }
+        public long Sum { get; set; }
 
-        public T Min { get; set; }
+        public long Min { get; set; }
 
-        public T Max { get; set; }
+        public long Max { get; set; }
     }
 }

src/OpenTelemetry/Metrics/Export/Metric.cs

@@ -21,8 +21,7 @@ namespace OpenTelemetry.Metrics.Export
     /// <summary>
     /// This class would evolve to become the export record.
     /// </summary>
-    /// <typeparam name="T">Type of the metric - long or double currently.</typeparam>
-    public class Metric<T>
+    public class Metric
     {
         public Metric(
             string metricNamespace,
@@ -34,7 +33,7 @@ namespace OpenTelemetry.Metrics.Export
             this.MetricName = metricName;
             this.MetricDescription = desc;
             this.AggregationType = type;
-            this.Data = new List<MetricData<T>>();
+            this.Data = new List<MetricData>();
         }
 
         public string MetricNamespace { get; private set; }
@@ -45,6 +44,6 @@ namespace OpenTelemetry.Metrics.Export
 
         public AggregationType AggregationType { get; private set; }
 
-        public List<MetricData<T>> Data { get; internal set; }
+        public List<MetricData> Data { get; internal set; }
     }
 }

src/OpenTelemetry/Metrics/Export/MetricData.cs

@@ -19,7 +19,7 @@ using System.Collections.Generic;
 
 namespace OpenTelemetry.Metrics.Export
 {
-    public abstract class MetricData<T>
+    public abstract class MetricData
     {
         public DateTime Timestamp { get; set; }