kamilwu commented on a change in pull request #13272:
URL: https://github.com/apache/beam/pull/13272#discussion_r522276853
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File path: sdks/go/pkg/beam/core/metrics/metrics.go
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@@ -448,3 +453,73 @@ func (m *gauge) get() (int64, time.Time) {
defer m.mu.Unlock()
return m.v, m.t
}
+
+// GaugeValue is the value of a Gauge metric.
+type GaugeValue struct {
+ Value int64
+ Timestamp time.Time
+}
+
+// Results represents all metrics gathered during the job's execution.
+// It allows for querying metrics using a provided filter.
+type Results struct {
+ counters []CounterResult
+ distributions []DistributionResult
+ gauges []GaugeResult
+}
+
+// AllMetrics returns all metrics from a Results instance.
+func (mr Results) AllMetrics() QueryResults {
+ return QueryResults{mr.counters, mr.distributions, mr.gauges}
+}
+
+// TODO(BEAM-11217): Implement Query(Filter) and metrics filtering
+
+// QueryResults is the result of a query. Allows accessing all of the
+// metrics that matched the filter.
+type QueryResults struct {
+ counters []CounterResult
+ distributions []DistributionResult
+ gauges []GaugeResult
+}
+
+// GetCounters returns an array of counter metrics.
+func (qr QueryResults) GetCounters() []CounterResult {
Review comment:
Let's keep these methods, but remove the Get* prefix.
Regarding the results, a safer option is probably to return their copies
instead. The structs don't have any underlying pointers, so it's not a problem
to use built-in `copy` function.
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