IntervalMetricReader (opentelemetry-sdk-metrics 0.12.0 API)

java.lang.Object
- io.opentelemetry.sdk.metrics.export.IntervalMetricReader

```
public final class IntervalMetricReader
extends java.lang.Object
```
Wraps a list of MetricProducers and automatically reads and exports the metrics every export interval. Metrics may also be dropped when it becomes time to export again, and there is an export in progress.
Configuration options for IntervalMetricReader can be read from system properties, environment variables, or Properties objects.
For system properties and Properties objects, IntervalMetricReader will look for the following names:
- otel.imr.export.interval: sets the export interval between pushes to the exporter.
For environment variables, IntervalMetricReader will look for the following names:
- OTEL_IMR_EXPORT_INTERVAL: sets the export interval between pushes to the exporter.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class IntervalMetricReader.Builder
Builder for IntervalMetricReader.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static IntervalMetricReader.Builder`	`builder()`	Returns a new `IntervalMetricReader.Builder` for `IntervalMetricReader`.
`static IntervalMetricReader.Builder`	`builderFromDefaultSources()`	Returns a new `IntervalMetricReader.Builder` for `IntervalMetricReader` reading the configuration values from the environment and from system properties.
`void`	`shutdown()`	Stops the scheduled task and calls export one more time.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - shutdown
```
public void shutdown()
```
    Stops the scheduled task and calls export one more time.
  - builder
```
public static IntervalMetricReader.Builder builder()
```
    Returns a new IntervalMetricReader.Builder for IntervalMetricReader.
    
    Returns:
    
    a new IntervalMetricReader.Builder for IntervalMetricReader.
  - builderFromDefaultSources
```
public static IntervalMetricReader.Builder builderFromDefaultSources()
```
    Returns a new IntervalMetricReader.Builder for IntervalMetricReader reading the configuration values from the environment and from system properties. System properties override values defined in the environment. If a configuration value is missing, it uses the default value.
    
    Returns:
    
    a new IntervalMetricReader.Builder for IntervalMetricReader.