PeriodicStreamProbe

A StreamProbe that listens to its stream only in sampling windows.

Every PeriodicSamplingConfiguration.interval it listens for PeriodicSamplingConfiguration.duration and forwards all measurements in that window. Subclasses implement stream.

Pausing cancels the current window and stops new windows from starting.

Inheritance

• Object
• AbstractExecutor<Measure>
• Probe
• StreamProbe
• PeriodicStreamProbe

Implementers

• BufferingPeriodicStreamProbe

Constructors

PeriodicStreamProbe

PeriodicStreamProbe()

Properties

samplingConfiguration

1. @override

PeriodicSamplingConfiguration? get samplingConfiguration

override

The sampling configuration for this probe.

Configuration is obtained in the following order:

• from the Measure.overrideSamplingConfiguration
• from the DeviceConfiguration.defaultSamplingConfiguration of the deployment
• from the DeviceConfiguration.dataTypeSamplingSchemes of the static device configuration
• from the SamplingPackage.samplingSchemes of the sampling packages

Returns null in case no configuration is found.

See also the section on Sampling schemes and configurations in the CARP Core Framework. In addition to CARP Core, CARP Mobile Sensing also supports sampling schemes in the sampling packages, which are used as the 4th possible configuration in the list above.

Methods

onPause

1. @override

Future<bool> onPause()

override

Called by pause. Returns true if successfully paused.

If false, the state is not changed.

onResume

1. @override

Future<bool> onResume()

override

Called by resume. Returns true if successfully resumed.

If false, the executor moves to ExecutorState.PausedButShouldBeResumed.