PeriodicStreamProbe class abstract

A periodic probe listening on a stream. Listening is done periodically as specified in a PeriodicSamplingConfiguration listening on intervals every interval for a period of duration. During this period, all data are forwarded to this probes measurements stream.

Just like in StreamProbe, sub-classes must implement the

Stream<Measurement>? get stream => ...

method in order to provide the stream to collect data from.

Note that this probe will finish its collection period even if it is stopped. Hence, data can still be generated from this probe, even if stopped. Stopping this probe will stop the creation of new collection periods.

Inheritance

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

Implementers

• BufferingPeriodicStreamProbe

Constructors

PeriodicStreamProbe()

Properties

configuration → Measure?

The configuration of this executor as set when initialized.

no setter, inherited

controller ↔ StreamController<Measurement>

A stream controller to add Measurements to.

getter/setter pair, inherited

deployment → SmartphoneDeployment?

The deployment that this executor is part of executing.

no setter, inherited

deviceManager ↔ DeviceManager<DeviceConfiguration<DeviceRegistration>>

The device that this probes uses to collect data.

getter/setter pair, inherited

enabled ↔ bool

Is this probe enabled, i.e. available for collection of data using the start method.

getter/setter pair, inherited

hashCode → int

The hash code for this object.

no setter, inherited

isStarting → bool

Is this executor in the process of being started?

no setter, inherited

measure → Measure?

The Measure that configures this probe.

no setter, inherited

measurements → Stream<Measurement>

The stream of Measurement collected by this executor.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

samplingConfiguration → PeriodicSamplingConfiguration?

The sampling configuration for this probe.

no setter, override

state → ExecutorState

The runtime state of this executor.

no setter, inherited

stateEvents → Stream<ExecutorState>

The runtime state changes of this executor.

no setter, inherited

stream → Stream<Measurement>?

The stream of Measurement objects for this StreamProbe. Must be implemented by sub-classes.

no setter, inherited

timer ↔ Timer?

getter/setter pair

type → String?

The data type this probe is collecting.

no setter, inherited

Methods

addError(Object error) → void

Add an error to the measurements stream.

inherited

addMeasurement(Measurement measurement) → void

Add a data point to the measurements stream.

inherited

error() → void

inherited

initialize(Measure configuration, [SmartphoneDeployment? deployment]) → void

Configure and initialize the executor before starting it.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

onData(Measurement measurement) → void

inherited

onDone() → void

inherited

onError(Object error) → void

inherited

onInitialize() → bool

Callback when this executor is initialized. Returns true if successfully initialized, false otherwise.

inherited

onRestart() → Future<bool>

Callback when this executor is to be restarted. Returns true if the executor is ready to restart (default), false otherwise.

inherited

onStart() → Future<bool>

Callback when this executor is started. Returns true if successfully started, false otherwise.

override

onStop() → Future<bool>

Callback when this executor is stopped. Returns true if successfully stopped, false otherwise.

override

restart() → void

Restart the executor.

inherited

start() → void

Start the executor.

inherited

stop() → void

Stop the executor. Stopped until start or restart is called.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited