1 files changed, 51 insertions, 0 deletions
diff --git a/src/jaegertracing/opentelemetry-cpp/sdk/include/opentelemetry/sdk/metrics/aggregation/drop_aggregation.h b/src/jaegertracing/opentelemetry-cpp/sdk/include/opentelemetry/sdk/metrics/aggregation/drop_aggregation.h
new file mode 100644
index 000000000..6c3d89d24
--- /dev/null
+++ b/src/jaegertracing/opentelemetry-cpp/sdk/include/opentelemetry/sdk/metrics/aggregation/drop_aggregation.h
@@ -0,0 +1,51 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+#ifndef ENABLE_METRICS_PREVIEW
+#  include "opentelemetry/common/spin_lock_mutex.h"
+#  include "opentelemetry/sdk/metrics/aggregation/aggregation.h"
+
+#  include <mutex>
+
+OPENTELEMETRY_BEGIN_NAMESPACE
+namespace sdk
+{
+namespace metrics
+{
+
+/**
+ * A null Aggregation which denotes no aggregation should occur.
+ */
+
+class DropAggregation : public Aggregation
+{
+public:
+  DropAggregation() = default;
+
+  DropAggregation(const DropPointData &) {}
+
+  void Aggregate(long value, const PointAttributes &attributes = {}) noexcept override {}
+
+  void Aggregate(double value, const PointAttributes &attributes = {}) noexcept override {}
+
+  std::unique_ptr<Aggregation> Merge(const Aggregation &) const noexcept override
+  {
+    return std::unique_ptr<Aggregation>(new DropAggregation());
+  }
+
+  std::unique_ptr<Aggregation> Diff(const Aggregation &) const noexcept override
+  {
+    return std::unique_ptr<Aggregation>(new DropAggregation());
+  }
+
+  PointType ToPoint() const noexcept override
+  {
+    static DropPointData point_data;
+    return point_data;
+  }
+};
+}  // namespace metrics
+}  // namespace sdk
+OPENTELEMETRY_END_NAMESPACE
+#endif
+\ No newline at end of file