Class: OpenTelemetry::SDK::Metrics::Export::InMemoryMetricPullExporter

Inherits:
MetricReader
  • Object
show all
Defined in:
lib/opentelemetry/sdk/metrics/export/in_memory_metric_pull_exporter.rb

Overview

The InMemoryMetricPullExporter behaves as a Metric Reader and Exporter. To be used for testing purposes, not production.

Instance Attribute Summary collapse

Attributes inherited from MetricReader

#metric_store

Instance Method Summary collapse

Methods inherited from MetricReader

#collect, #force_flush, #register_meter_provider

Constructor Details

#initialize(aggregation_cardinality_limit: nil) ⇒ InMemoryMetricPullExporter

Returns a new instance of InMemoryMetricPullExporter.



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# File 'lib/opentelemetry/sdk/metrics/export/in_memory_metric_pull_exporter.rb', line 16

def initialize(aggregation_cardinality_limit: nil)
  super
  @metric_snapshots = []
  @mutex = Mutex.new
end

Instance Attribute Details

#metric_snapshots ⇒ Object (readonly)

Returns the value of attribute metric_snapshots.



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# File 'lib/opentelemetry/sdk/metrics/export/in_memory_metric_pull_exporter.rb', line 14

def metric_snapshots
  @metric_snapshots
end

Instance Method Details

#export(metrics, timeout: nil) ⇒ Object

Appends the given metrics to #metric_snapshots.



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# File 'lib/opentelemetry/sdk/metrics/export/in_memory_metric_pull_exporter.rb', line 28

def export(metrics, timeout: nil)
  @mutex.synchronize do
    @metric_snapshots.concat(Array(metrics))
  end
  SUCCESS
end

#pull ⇒ Object

Collects and exports the current metrics into #metric_snapshots.



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# File 'lib/opentelemetry/sdk/metrics/export/in_memory_metric_pull_exporter.rb', line 23

def pull
  export(collect)
end

#reset ⇒ Object

Clears #metric_snapshots.



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# File 'lib/opentelemetry/sdk/metrics/export/in_memory_metric_pull_exporter.rb', line 36

def reset
  @mutex.synchronize do
    @metric_snapshots.clear
  end
end

#shutdown ⇒ Object

No-op: there is nothing to shut down for this exporter.



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# File 'lib/opentelemetry/sdk/metrics/export/in_memory_metric_pull_exporter.rb', line 43

def shutdown
  SUCCESS
end