getMeasurement method

@override Future<Measurement> getMeasurement()

Subclasses should implement this method to collect a Measurement.

Can return null if no data is available. Can return an Error measurement if an error occurs.

Implementation

@override
Future<Measurement> getMeasurement() async {
  final m = (samplingConfiguration as HistoricSamplingConfiguration);
  int from = (m.lastTime != null)
      ? m.lastTime!.millisecondsSinceEpoch
      : DateTime.now().subtract(m.past).millisecondsSinceEpoch;
  int now = DateTime.now().millisecondsSinceEpoch;
  Iterable<CallLogEntry> entries = await CallLog.query(
    dateFrom: from,
    dateTo: now,
  );
  return Measurement.fromData(
    PhoneLog(
      DateTime.fromMillisecondsSinceEpoch(from).toUtc(),
      DateTime.now().toUtc(),
      entries.map((call) => PhoneCall.fromCallLogEntry(call)).toList(),
    ),
  );
}