Move metric data

.cspell.json

@@ -36,6 +36,7 @@
         "datapoint",
         "deque",
         "Dirkjan",
+        "downcasting",
         "EPYC",
         "hasher",
         "Isobel",

opentelemetry-sdk/src/metrics/data/mod.rs → opentelemetry-sdk/src/export/metrics.rs

@@ -1,12 +1,36 @@
-//! Types for delivery of pre-aggregated metric time series data.
+//! Interfaces for exporting metrics
+use async_trait::async_trait;
 
+use crate::metrics::{MetricResult, Temporality};
+use crate::Resource;
+use opentelemetry::{InstrumentationScope, KeyValue};
 use std::{any, borrow::Cow, fmt, time::SystemTime};
 
-use opentelemetry::{InstrumentationScope, KeyValue};
+/// Exporter handles the delivery of metric data to external receivers.
+///
+/// This is the final component in the metric push pipeline.
+#[async_trait]
+pub trait PushMetricExporter: Send + Sync + 'static {
+    /// Export serializes and transmits metric data to a receiver.
+    ///
+    /// All retry logic must be contained in this function. The SDK does not
+    /// implement any retry logic. All errors returned by this function are
+    /// considered unrecoverable and will be reported to a configured error
+    /// Handler.
+    async fn export(&self, metrics: &mut ResourceMetrics) -> MetricResult<()>;
 
-use crate::Resource;
+    /// Flushes any metric data held by an exporter.
+    async fn force_flush(&self) -> MetricResult<()>;
+
+    /// Releases any held computational resources.
+    ///
+    /// After Shutdown is called, calls to Export will perform no operation and
+    /// instead will return an error indicating the shutdown state.
+    fn shutdown(&self) -> MetricResult<()>;
 
-use super::Temporality;
+    /// Access the [Temporality] of the MetricExporter.
+    fn temporality(&self) -> Temporality;
+}
 
 /// A collection of [ScopeMetrics] and the associated [Resource] that created them.
 #[derive(Debug)]

opentelemetry-sdk/src/export/mod.rs

@@ -4,6 +4,10 @@
 #[cfg_attr(docsrs, doc(cfg(feature = "logs")))]
 pub mod logs;
 
+#[cfg(feature = "metrics")]
+#[cfg_attr(docsrs, doc(cfg(feature = "metrics")))]
+pub mod metrics;
+
 #[cfg(feature = "trace")]
 #[cfg_attr(docsrs, doc(cfg(feature = "trace")))]
 pub mod trace;

opentelemetry-sdk/src/metrics/aggregation.rs

@@ -150,9 +150,10 @@ impl Aggregation {
 #[cfg(test)]
 mod tests {
     use crate::metrics::{
+        aggregation::Aggregation,
         internal::{EXPO_MAX_SCALE, EXPO_MIN_SCALE},
-        Aggregation,
     };
+
     use crate::metrics::{MetricError, MetricResult};
 
     #[test]

opentelemetry-sdk/src/metrics/exporter.rs

@@ -1,34 +1 @@
-//! Interfaces for exporting metrics
-use async_trait::async_trait;
 
-use crate::metrics::MetricResult;
-
-use crate::metrics::data::ResourceMetrics;
-
-use super::Temporality;
-
-/// Exporter handles the delivery of metric data to external receivers.
-///
-/// This is the final component in the metric push pipeline.
-#[async_trait]
-pub trait PushMetricExporter: Send + Sync + 'static {
-    /// Export serializes and transmits metric data to a receiver.
-    ///
-    /// All retry logic must be contained in this function. The SDK does not
-    /// implement any retry logic. All errors returned by this function are
-    /// considered unrecoverable and will be reported to a configured error
-    /// Handler.
-    async fn export(&self, metrics: &mut ResourceMetrics) -> MetricResult<()>;
-
-    /// Flushes any metric data held by an exporter.
-    async fn force_flush(&self) -> MetricResult<()>;
-
-    /// Releases any held computational resources.
-    ///
-    /// After Shutdown is called, calls to Export will perform no operation and
-    /// instead will return an error indicating the shutdown state.
-    fn shutdown(&self) -> MetricResult<()>;
-
-    /// Access the [Temporality] of the MetricExporter.
-    fn temporality(&self) -> Temporality;
-}

opentelemetry-sdk/src/metrics/internal/aggregate.rs

@@ -8,7 +8,8 @@ use std::{
 
 use opentelemetry::KeyValue;
 
-use crate::metrics::{data::Aggregation, Temporality};
+use crate::export::metrics::Aggregation;
+use crate::metrics::Temporality;
 
 use super::{
     exponential_histogram::ExpoHistogram, histogram::Histogram, last_value::LastValue,
@@ -199,7 +200,7 @@ impl<T: Number> AggregateBuilder<T> {
 
 #[cfg(test)]
 mod tests {
-    use crate::metrics::data::{
+    use crate::export::metrics::{
         ExponentialBucket, ExponentialHistogram, ExponentialHistogramDataPoint, Gauge,
         GaugeDataPoint, Histogram, HistogramDataPoint, Sum, SumDataPoint,
     };