onResume method
Callback when this executor is resumed. Returns true if successfully resumed, false otherwise.
Implementation
@override
Future<bool> onResume() async {
if (stream == null) {
warning(
"Trying to resume the stream probe '$runtimeType' which does not provide a Datum stream. "
'Have you initialized this probe correctly?');
return false;
} else {
Duration? interval = samplingConfiguration?.interval;
Duration? duration = samplingConfiguration?.duration;
if (interval != null && duration != null) {
// create a recurrent timer that resume sampling
timer = Timer.periodic(interval, (timer) {
final StreamSubscription<Datum> newSubscription =
stream!.listen(onData, onError: onError, onDone: onDone);
// create a timer that pause the sampling after the specified duration.
Timer(duration, () async {
await newSubscription.cancel();
});
});
} else {
warning(
'$runtimeType - no valid interval and duration found in sampling configuration: $samplingConfiguration. '
'Is a valid PeriodicSamplingConfiguration provided?');
}
}
return true;
}