org.android.activityminer.logic.devices
Class LinearDeviceAccelerometerDataSource

java.lang.Object
  org.android.activityminer.logic.util.AbstractActivatableComponentImpl
      org.android.activityminer.logic.devices.AbstractAccelerometerDataSource
          org.android.activityminer.logic.devices.LinearDeviceAccelerometerDataSource

All Implemented Interfaces:

EventObserver<ScreenChangeEvent>, ObservableEventSource<SampleGapErrorEvent>, ObserverRegistration<SampleGapErrorEvent>, SensorDataSource<AccelerometerData>, ActivatableComponent

public final class LinearDeviceAccelerometerDataSource
extends AbstractAccelerometerDataSource

Default implementation of the accelerometer data source.

Nested Class Summary

private class

LinearDeviceAccelerometerDataSource.LinearAccelerationListener The linear acceleration listener.

Field Summary

protected double[]	currentRawAcc The most recent raw acceleration data
private AtomicLong	currentRawTs The current raw acceleration time stamp
private SensorEventListener	linAccListener The sensor event listener for the linear acceleration event
private Sensor	linAccSensor The corresponding Android sensor for linear acceleration
private Object	rawAccLock lock for access to the current raw acceleration

Fields inherited from class org.android.activityminer.logic.devices.AbstractAccelerometerDataSource

cache, context, currentData, currentDataLock, currentFilterData, filter, sampleCount, sensorRate, startRefTime, startTs

Constructor Summary

LinearDeviceAccelerometerDataSource(Context context, FrequencyTypes fType, LowPassFilter nyquistFilter)
Constructor

Method Summary

protected void	onActivationStateChange(boolean active) Handler for activation state changes
protected void	onSensorEventLinearAcc(SensorEvent event) Handler for sensor events of the linear acceleration sensor
void	onSensorEventRawAcc(SensorEvent event) Handler for sensor events of the raw acceleration sensor
protected void	registerListener(Context context) Does register the sensor listeners for the device type
protected void	unregisterListener(Context context) Does unregister the sensor listener for the device type

Methods inherited from class org.android.activityminer.logic.devices.AbstractAccelerometerDataSource

getAverageSampleDistance, hasObservers, notify, onDestroy, onEvent, registerEventObserver, removeAllObservers, setFilter, takeSample, unregisterEventObserver, updateFilterConfiguration

Methods inherited from class org.android.activityminer.logic.util.AbstractActivatableComponentImpl

isActive, setActivationState

Methods inherited from class java.lang.Object

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

Field Detail

linAccListener

private final SensorEventListener linAccListener

The sensor event listener for the linear acceleration event

linAccSensor

private final Sensor linAccSensor

The corresponding Android sensor for linear acceleration

currentRawAcc

protected final double[] currentRawAcc

The most recent raw acceleration data

rawAccLock

private final Object rawAccLock

lock for access to the current raw acceleration

currentRawTs

private final AtomicLong currentRawTs

The current raw acceleration time stamp

Constructor Detail

LinearDeviceAccelerometerDataSource

public LinearDeviceAccelerometerDataSource(Context context,
                                           FrequencyTypes fType,
                                           LowPassFilter nyquistFilter)

Constructor

Parameters:

context - the application context

fType - the sample frequency type

nyquistFilter - the filter to cut of frequencies above nyquist

Method Detail

registerListener

protected final void registerListener(Context context)

Description copied from class: AbstractAccelerometerDataSource

Does register the sensor listeners for the device type

Overrides:

registerListener in class AbstractAccelerometerDataSource

Parameters:

context - the context

unregisterListener

protected final void unregisterListener(Context context)

Description copied from class: AbstractAccelerometerDataSource

Does unregister the sensor listener for the device type

Overrides:

unregisterListener in class AbstractAccelerometerDataSource

Parameters:

context - the context

onActivationStateChange

protected final void onActivationStateChange(boolean active)

Description copied from class: AbstractActivatableComponentImpl

Handler for activation state changes

Overrides:

onActivationStateChange in class AbstractAccelerometerDataSource

Parameters:

active - the new activation state

onSensorEventRawAcc

public final void onSensorEventRawAcc(SensorEvent event)

Handler for sensor events of the raw acceleration sensor

Specified by:

onSensorEventRawAcc in class AbstractAccelerometerDataSource

Parameters:

event - the sensor event

onSensorEventLinearAcc

protected final void onSensorEventLinearAcc(SensorEvent event)

Handler for sensor events of the linear acceleration sensor

Parameters:

event - the sensor event