org.android.activityminer.app.util
Class MaximumSampleFrequencyDeterminationTask

java.lang.Object
  android.os.AsyncTask<Void,Integer,Long>
      org.android.activityminer.app.util.MaximumSampleFrequencyDeterminationTask

All Implemented Interfaces:

EventObserver<SensorObservationCutout<SensorObservationDimensions,Double>>

public class MaximumSampleFrequencyDeterminationTask
extends AsyncTask<Void,Integer,Long>
implements EventObserver<SensorObservationCutout<SensorObservationDimensions,Double>>

The asynchronous task for determination of the maximum sample frequency.

Nested Class Summary

Nested classes/interfaces inherited from class android.os.AsyncTask

AsyncTask.Status

Field Summary

private AbstractAccelerometerDataSource	accelerometerDevice The accelerometer device.
private long	bestRate The old frequency value.
private RuntimeConfiguration	config The runtime configuration to use.
private Context	context The activity context.
private GenericObservableCutoutCreator<SensorObservationDimensions,Double>	cutoutCreator The cut-out creator.
private List<SensorObservationCutout<SensorObservationDimensions,Double>>	cutoutList The list to hold the observed cut-outs.
private DeviceManager	deviceManager The device manager
private EventObserver<TaskFinishedEvent>	finishedObserver The finished observer to be notified for success.
private ProgressDialog	progressDialog The progress dialog.
private ObservableSensorScanner<SensorObservationDimensions,Double>	sensorScanner The sensor scanner to use.
private static int	TEST_REPEATION_COUNT The count of repetitive test runs, where the maximum sample frequency is averaged for.

Fields inherited from class android.os.AsyncTask

SERIAL_EXECUTOR, THREAD_POOL_EXECUTOR

Constructor Summary

private

MaximumSampleFrequencyDeterminationTask(Context context, RuntimeConfiguration config, EventObserver<TaskFinishedEvent> finishedObserver, DeviceManager deviceManager) Constructor

Method Summary

static void	createAndRunTask(Context context, RuntimeConfiguration config, EventObserver<TaskFinishedEvent> finishedObserver) Does create and execute a the asynchronous task in the given context.
protected Long	doInBackground(Void... params)
void	execute() An execution wrapper.
private void	notify(boolean success) Notification method.
private void	notifyForResult(long result) Does notify the user about the result.
void	onEvent(ObservableEventSource<? extends SensorObservationCutout<SensorObservationDimensions,Double>> eventSource, SensorObservationCutout<SensorObservationDimensions,Double> observedEvent)
protected void	onPostExecute(Long result)
protected void	onPreExecute()
private void	saveResult(long sampleRate) Does save the resulting sample rate to the preferences.

Methods inherited from class android.os.AsyncTask

cancel, execute, execute, executeOnExecutor, get, get, getStatus, isCancelled, onCancelled, onCancelled, onProgressUpdate, publishProgress

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

TEST_REPEATION_COUNT

private static final int TEST_REPEATION_COUNT

The count of repetitive test runs, where the maximum sample frequency is averaged for.

See Also:

Constant Field Values

progressDialog

private ProgressDialog progressDialog

The progress dialog.

context

private final Context context

The activity context.

config

private final RuntimeConfiguration config

The runtime configuration to use.

finishedObserver

private final EventObserver<TaskFinishedEvent> finishedObserver

The finished observer to be notified for success.

sensorScanner

private ObservableSensorScanner<SensorObservationDimensions,Double> sensorScanner

The sensor scanner to use.

cutoutCreator

private final GenericObservableCutoutCreator<SensorObservationDimensions,Double> cutoutCreator

The cut-out creator.

cutoutList

private final List<SensorObservationCutout<SensorObservationDimensions,Double>> cutoutList

The list to hold the observed cut-outs.

bestRate

private long bestRate

The old frequency value.

accelerometerDevice

private AbstractAccelerometerDataSource accelerometerDevice

The accelerometer device.

deviceManager

private final DeviceManager deviceManager

The device manager

Constructor Detail

MaximumSampleFrequencyDeterminationTask

private MaximumSampleFrequencyDeterminationTask(Context context,
                                                RuntimeConfiguration config,
                                                EventObserver<TaskFinishedEvent> finishedObserver,
                                                DeviceManager deviceManager)

Constructor

Parameters:

context - the application context

config - the runtime configuration

finishedObserver - the finished observer

deviceManager - the device manager to use

Method Detail

onPreExecute

protected final void onPreExecute()

Overrides:

onPreExecute in class AsyncTask<Void,Integer,Long>

onPostExecute

protected final void onPostExecute(Long result)

Overrides:

onPostExecute in class AsyncTask<Void,Integer,Long>

notifyForResult

private void notifyForResult(long result)

Does notify the user about the result.

Parameters:

result - the result

notify

private void notify(boolean success)

Notification method.

Parameters:

success - success state

saveResult

private final void saveResult(long sampleRate)

Does save the resulting sample rate to the preferences.

Parameters:

sampleRate - the sample rate

doInBackground

protected final Long doInBackground(Void... params)

Specified by:

doInBackground in class AsyncTask<Void,Integer,Long>

execute

public final void execute()

An execution wrapper.

createAndRunTask

public static final void createAndRunTask(Context context,
                                          RuntimeConfiguration config,
                                          EventObserver<TaskFinishedEvent> finishedObserver)

Does create and execute a the asynchronous task in the given context.

Parameters:

context - the context of the caller

config - the runtime configuration to use

finishedObserver - the finished event observer

onEvent

public void onEvent(ObservableEventSource<? extends SensorObservationCutout<SensorObservationDimensions,Double>> eventSource,
                    SensorObservationCutout<SensorObservationDimensions,Double> observedEvent)

Specified by:

onEvent in interface EventObserver<SensorObservationCutout<SensorObservationDimensions,Double>>