/**
* The call() method that broadcast intents before the measurement starts and after the
* measurement finishes.
*/
@Override
public MeasurementResult[] call() throws MeasurementError {
MeasurementResult[] results = null;
PhoneUtils phoneUtils = PhoneUtils.getPhoneUtils();
try {
phoneUtils.acquireWakeLock();
broadcastMeasurementStart();
contextCollector.setInterval(realTask.getDescription().contextIntervalSec);
contextCollector.startCollector();
results = realTask.call();
ArrayList<HashMap<String, String>> contextResults = contextCollector.stopCollector();
for (MeasurementResult r : results) {
r.addContextResults(contextResults);
r.getDeviceProperty().dnResolvability = contextCollector.dnsConnectivity;
r.getDeviceProperty().ipConnectivity = contextCollector.ipConnectivity;
}
} catch (MeasurementError e) {
Logger.e("User measurement " + realTask.getDescriptor() + " has failed");
Logger.e(e.getMessage());
results = MeasurementResult.getFailureResult(realTask, e);
} catch (Exception e) {
Logger.e("User measurement " + realTask.getDescriptor() + " has failed");
Logger.e("Unexpected Exception: " + e.getMessage());
results = MeasurementResult.getFailureResult(realTask, e);
} finally {
broadcastMeasurementEnd(results);
MeasurementTask currentTask = scheduler.getCurrentTask();
if (currentTask != null && currentTask.equals(realTask)) {
scheduler.setCurrentTask(null);
}
phoneUtils.releaseWakeLock();
}
return results;
}
