com.openxc

Class VehicleManager

java.lang.Object

android.content.Context

android.content.ContextWrapper

android.app.Service

com.openxc.VehicleManager

All Implemented Interfaces:

android.content.ComponentCallbacks, android.content.ComponentCallbacks2, DataPipeline.Operator

public class VehicleManager
extends android.app.Service
implements DataPipeline.Operator

The VehicleManager is an in-process Android service and the primary entry point into the OpenXC library. An OpenXC application should bind to this service and request vehicle measurements through it either synchronously or asynchronously. The service will shut down when no more clients are bound to it. Synchronous measurements are obtained by passing the type of the desired measurement to the get(Class) method. Asynchronous measurements are obtained by defining a Measurement.Listener or VehicleMessage.Listener object and passing it to the service via the addListener method. There are three major components in the VehicleManager: VehicleDataSource, VehicleDataSink and VehicleInterface. The instance of a VehicleInterface is perhaps the most important. This represents the actual physical connection to the vehicle, and is bi-directional - it can both provide data to an application and send data back to the vehicle. In most cases, this should not be instantiated by applications; the setVehicleInterface(Class, String) method takes enough metadata for the remote VehicleService to instantiate the interface in a remote process. That way a single USB or Bluetooth connection can be shared among many applications. The VehicleManager also supports custom user-defined data sources, which can be controlled with addSource(VehicleDataSource) and removeSource(VehicleDataSource) methods. Even though data sources are instantiated by the application, their data is still shared among all OpenXC applications using the same remove process VehicleService In addition to applications registered to receive updates as a Measurement or VehicleMessage listener, the VehicleManager supports custom data sinks (e.g. FileRecorderSink) that be controlled with the addSink(VehicleDataSink) and removeSink(VehicleDataSink) methods. When a message is received from a VehicleDataSource, it is passed to every active VehicleDataSink. There will always be at least one sink that stores the latest messages and handles passing on data to users of this service.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	VehicleManager.VehicleBinder Binder to connect IBinder in a ServiceConnection with the VehicleManager.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	ADDING_LISTENER_S_TO_S
static java.lang.String	UNABLE_TO_SEND_MESSAGE_TO_REMOTE_SERVICE
static java.lang.String	VEHICLE_LOCATION_PROVIDER

Fields inherited from class android.app.Service

START_CONTINUATION_MASK, START_FLAG_REDELIVERY, START_FLAG_RETRY, START_NOT_STICKY, START_REDELIVER_INTENT, START_STICKY, START_STICKY_COMPATIBILITY, STOP_FOREGROUND_DETACH, STOP_FOREGROUND_REMOVE

Fields inherited from class android.content.Context

ACCESSIBILITY_SERVICE, ACCOUNT_SERVICE, ACTIVITY_SERVICE, ALARM_SERVICE, APP_OPS_SERVICE, APPWIDGET_SERVICE, AUDIO_SERVICE, BATTERY_SERVICE, BIND_ABOVE_CLIENT, BIND_ADJUST_WITH_ACTIVITY, BIND_ALLOW_OOM_MANAGEMENT, BIND_AUTO_CREATE, BIND_DEBUG_UNBIND, BIND_EXTERNAL_SERVICE, BIND_IMPORTANT, BIND_NOT_FOREGROUND, BIND_WAIVE_PRIORITY, BLUETOOTH_SERVICE, CAMERA_SERVICE, CAPTIONING_SERVICE, CARRIER_CONFIG_SERVICE, CLIPBOARD_SERVICE, COMPANION_DEVICE_SERVICE, CONNECTIVITY_SERVICE, CONSUMER_IR_SERVICE, CONTEXT_IGNORE_SECURITY, CONTEXT_INCLUDE_CODE, CONTEXT_RESTRICTED, CROSS_PROFILE_APPS_SERVICE, DEVICE_POLICY_SERVICE, DISPLAY_SERVICE, DOWNLOAD_SERVICE, DROPBOX_SERVICE, EUICC_SERVICE, FINGERPRINT_SERVICE, HARDWARE_PROPERTIES_SERVICE, INPUT_METHOD_SERVICE, INPUT_SERVICE, IPSEC_SERVICE, JOB_SCHEDULER_SERVICE, KEYGUARD_SERVICE, LAUNCHER_APPS_SERVICE, LAYOUT_INFLATER_SERVICE, LOCATION_SERVICE, MEDIA_PROJECTION_SERVICE, MEDIA_ROUTER_SERVICE, MEDIA_SESSION_SERVICE, MIDI_SERVICE, MODE_APPEND, MODE_ENABLE_WRITE_AHEAD_LOGGING, MODE_MULTI_PROCESS, MODE_NO_LOCALIZED_COLLATORS, MODE_PRIVATE, MODE_WORLD_READABLE, MODE_WORLD_WRITEABLE, NETWORK_STATS_SERVICE, NFC_SERVICE, NOTIFICATION_SERVICE, NSD_SERVICE, POWER_SERVICE, PRINT_SERVICE, RECEIVER_VISIBLE_TO_INSTANT_APPS, RESTRICTIONS_SERVICE, SEARCH_SERVICE, SENSOR_SERVICE, SHORTCUT_SERVICE, STORAGE_SERVICE, STORAGE_STATS_SERVICE, SYSTEM_HEALTH_SERVICE, TELECOM_SERVICE, TELEPHONY_SERVICE, TELEPHONY_SUBSCRIPTION_SERVICE, TEXT_CLASSIFICATION_SERVICE, TEXT_SERVICES_MANAGER_SERVICE, TV_INPUT_SERVICE, UI_MODE_SERVICE, USAGE_STATS_SERVICE, USB_SERVICE, USER_SERVICE, VIBRATOR_SERVICE, WALLPAPER_SERVICE, WIFI_AWARE_SERVICE, WIFI_P2P_SERVICE, WIFI_RTT_RANGING_SERVICE, WIFI_SERVICE, WINDOW_SERVICE

Fields inherited from interface android.content.ComponentCallbacks2

TRIM_MEMORY_BACKGROUND, TRIM_MEMORY_COMPLETE, TRIM_MEMORY_MODERATE, TRIM_MEMORY_RUNNING_CRITICAL, TRIM_MEMORY_RUNNING_LOW, TRIM_MEMORY_RUNNING_MODERATE, TRIM_MEMORY_UI_HIDDEN

Constructor Summary

Constructors

Constructor and Description
VehicleManager()

Method Summary

Modifier and Type	Method and Description
void	addListener(java.lang.Class<? extends Measurement> measurementType, Measurement.Listener listener) Register to receive asynchronous updates for a specific Measurement type.
void	addListener(java.lang.Class<? extends VehicleMessage> messageType, VehicleMessage.Listener listener) Register to receive asynchronous updates for a specific VehicleMessage type.
void	addListener(KeyedMessage keyedMessage, VehicleMessage.Listener listener) Register to receive a callback when a message with same key as the given KeyedMessage is received.
void	addListener(KeyMatcher matcher, VehicleMessage.Listener listener) Register to receive a callback when a message with key matching the given KeyMatcher is received.
void	addListener(MessageKey key, VehicleMessage.Listener listener) Register to receive a callback when a message with the given key is received.
void	addOnVehicleInterfaceConnectedListener(ViConnectionListener listener) Register a listener to receive a callback when the selected VI is connected.
void	addSink(VehicleDataSink sink) Add a new data sink to the vehicle service.
void	addSource(VehicleDataSource source) Add a new data source to the vehicle service.
Measurement	get(java.lang.Class<? extends Measurement> measurementType) Retrieve the most current value of a measurement.
VehicleMessage	get(MessageKey key) Retrieve the most current value of a keyed message.
VehicleInterfaceDescriptor	getActiveVehicleInterface() Returns a descriptor of the active vehicle interface.
int	getMessageCount() Read the number of messages received by the vehicle service.
SourceCallback	getRemoteCallback()
SourceCallback	getUserCallback()
java.lang.String	getVehicleInterfaceDeviceId() Query for the unique device ID of the active VI.
java.lang.String	getVehicleInterfacePlatform() Query for the platform of the active VI.
java.lang.String	getVehicleInterfaceVersion() Query for the firmware version of the active VI.
boolean	isViConnected() Return the connection status of the selected VI.
android.os.IBinder	onBind(android.content.Intent intent)
void	onCreate()
void	onDestroy()
void	onPipelineActivated()
void	onPipelineDeactivated()
boolean	onUnbind(android.content.Intent intent)
void	removeListener(java.lang.Class<? extends Measurement> measurementType, Measurement.Listener listener) Unregister a previously registered Measurement.Listener instance.
void	removeListener(java.lang.Class<? extends VehicleMessage> messageType, VehicleMessage.Listener listener) Unregister a previously registered message type listener.
void	removeListener(KeyedMessage message, VehicleMessage.Listener listener) Unregister a previously registered keyed message listener.
void	removeListener(KeyMatcher matcher, VehicleMessage.Listener listener) Unregister a previously registered key matcher listener.
void	removeListener(MessageKey key, VehicleMessage.Listener listener) Unregister a previously registered key listener.
void	removeSink(VehicleDataSink sink) Remove a previously registered sink from the data pipeline.
void	removeSource(VehicleDataSource source) Remove a previously registered source from the data pipeline.
VehicleMessage	request(KeyedMessage message) Send a message to the VehicleInterface and wait up to 2 seconds to receive a response.
void	request(KeyedMessage message, VehicleMessage.Listener listener) Send a message to the VehicleInterface and register the given listener to receive the first response matching the message's key.
java.lang.String	requestCommandMessage(Command.CommandType type) Send a command request to the vehicle that does not require any metadata.
boolean	send(Measurement message) Convert a Measurement to a SimpleVehicleMessage and send it through the active VehicleInterface.
boolean	send(VehicleMessage message) Send a message to the vehicle through the active VehicleInterface without waiting for a response.
void	setBluetoothPollingStatus(boolean enabled) Control whether polling is used to connect to a Bluetooth device or not.
void	setNativeGpsStatus(boolean enabled) Control whether the device's built-in GPS is used to provide location.
void	setVehicleInterface(java.lang.Class<? extends VehicleInterface> vehicleInterfaceType) Change the active vehicle interface to a new type using its default resource identifier.
void	setVehicleInterface(java.lang.Class<? extends VehicleInterface> vehicleInterfaceType, java.lang.String resource) Change the active vehicle interface to a new type using the given resource.
java.lang.String	toString()
void	waitUntilBound() Block until the VehicleManager is alive and can return measurements.

Methods inherited from class android.app.Service

dump, getApplication, onConfigurationChanged, onLowMemory, onRebind, onStart, onStartCommand, onTaskRemoved, onTrimMemory, startForeground, stopForeground, stopForeground, stopSelf, stopSelf, stopSelfResult

Methods inherited from class android.content.ContextWrapper

attachBaseContext, bindService, checkCallingOrSelfPermission, checkCallingOrSelfUriPermission, checkCallingPermission, checkCallingUriPermission, checkPermission, checkSelfPermission, checkUriPermission, checkUriPermission, clearWallpaper, createConfigurationContext, createContextForSplit, createDeviceProtectedStorageContext, createDisplayContext, createPackageContext, databaseList, deleteDatabase, deleteFile, deleteSharedPreferences, enforceCallingOrSelfPermission, enforceCallingOrSelfUriPermission, enforceCallingPermission, enforceCallingUriPermission, enforcePermission, enforceUriPermission, enforceUriPermission, fileList, getApplicationContext, getApplicationInfo, getAssets, getBaseContext, getCacheDir, getClassLoader, getCodeCacheDir, getContentResolver, getDatabasePath, getDataDir, getDir, getExternalCacheDir, getExternalCacheDirs, getExternalFilesDir, getExternalFilesDirs, getExternalMediaDirs, getFilesDir, getFileStreamPath, getMainExecutor, getMainLooper, getNoBackupFilesDir, getObbDir, getObbDirs, getPackageCodePath, getPackageManager, getPackageName, getPackageResourcePath, getResources, getSharedPreferences, getSystemService, getSystemServiceName, getTheme, getWallpaper, getWallpaperDesiredMinimumHeight, getWallpaperDesiredMinimumWidth, grantUriPermission, isDeviceProtectedStorage, isRestricted, moveDatabaseFrom, moveSharedPreferencesFrom, openFileInput, openFileOutput, openOrCreateDatabase, openOrCreateDatabase, peekWallpaper, registerReceiver, registerReceiver, registerReceiver, registerReceiver, removeStickyBroadcast, removeStickyBroadcastAsUser, revokeUriPermission, revokeUriPermission, sendBroadcast, sendBroadcast, sendBroadcastAsUser, sendBroadcastAsUser, sendOrderedBroadcast, sendOrderedBroadcast, sendOrderedBroadcastAsUser, sendStickyBroadcast, sendStickyBroadcastAsUser, sendStickyOrderedBroadcast, sendStickyOrderedBroadcastAsUser, setTheme, setWallpaper, setWallpaper, startActivities, startActivities, startActivity, startActivity, startForegroundService, startInstrumentation, startIntentSender, startIntentSender, startService, stopService, unbindService, unregisterReceiver

Methods inherited from class android.content.Context

getColor, getColorStateList, getDrawable, getString, getString, getSystemService, getText, obtainStyledAttributes, obtainStyledAttributes, obtainStyledAttributes, obtainStyledAttributes, registerComponentCallbacks, unregisterComponentCallbacks

Methods inherited from class java.lang.Object

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

Field Detail

VEHICLE_LOCATION_PROVIDER

public static final java.lang.String VEHICLE_LOCATION_PROVIDER

See Also:

Constant Field Values

ADDING_LISTENER_S_TO_S

public static final java.lang.String ADDING_LISTENER_S_TO_S

See Also:

Constant Field Values

UNABLE_TO_SEND_MESSAGE_TO_REMOTE_SERVICE

public static final java.lang.String UNABLE_TO_SEND_MESSAGE_TO_REMOTE_SERVICE

See Also:

Constant Field Values

Constructor Detail

VehicleManager

public VehicleManager()

Method Detail

onCreate

public void onCreate()

Overrides:

onCreate in class android.app.Service

onDestroy

public void onDestroy()

Overrides:

onDestroy in class android.app.Service

onBind

public android.os.IBinder onBind(android.content.Intent intent)

Specified by:

onBind in class android.app.Service

onUnbind

public boolean onUnbind(android.content.Intent intent)

Overrides:

onUnbind in class android.app.Service

waitUntilBound

public void waitUntilBound()
                    throws VehicleServiceException

Block until the VehicleManager is alive and can return measurements. Blocks for at most 3 seconds. Most applications don't need this and don't wait this method, but it can be useful for testing when you need to make sure you will get a measurement back from the system.

Throws:

VehicleServiceException

get

public Measurement get(java.lang.Class<? extends Measurement> measurementType)
                throws UnrecognizedMeasurementTypeException,
                       NoValueException

Retrieve the most current value of a measurement.

Parameters:

measurementType - The class of the requested Measurement (e.g. VehicleSpeed.class)

Returns:

An instance of the requested Measurement which may or may not have a value.

Throws:

UnrecognizedMeasurementTypeException - if passed a measurementType that does not extend Measurement

NoValueException - if no value has yet been received for this measurementType

See Also:

BaseMeasurement

get

public VehicleMessage get(MessageKey key)
                   throws NoValueException

Retrieve the most current value of a keyed message.

Parameters:

key - The key of the requested Measurement (e.g. VehicleSpeed.class)

Returns:

An instance of the requested Measurement which may or may not have a value.

Throws:

NoValueException - if no value has yet been received for this measurementType

See Also:

BaseMeasurement

send

public boolean send(VehicleMessage message)

Send a message to the vehicle through the active VehicleInterface without waiting for a response.

Parameters:

message - The desired message to send to the vehicle.

Returns:

true if the message was sent successfully on an interface.

send

public boolean send(Measurement message)

Convert a Measurement to a SimpleVehicleMessage and send it through the active VehicleInterface.

Parameters:

message - The desired message to send to the vehicle.

Returns:

true if the message was sent successfully on an interface.

request

public void request(KeyedMessage message,
                    VehicleMessage.Listener listener)

Send a message to the VehicleInterface and register the given listener to receive the first response matching the message's key. This function is non-blocking. The listener is unregistered after the first response is received. If you need to accept multiple responses for the same request, you must manually register your own listener to control its lifecycle.

Parameters:

message - The desired message to send to the vehicle.

listener - The message listener that should receive a callback when a response matching the outgoing message's key is received from the VI.

request

public VehicleMessage request(KeyedMessage message)

Send a message to the VehicleInterface and wait up to 2 seconds to receive a response. This is a blocking version of the other request(...) method.

Returns:

The response if one is received before the timeout, otherwise null.

addListener

public void addListener(java.lang.Class<? extends Measurement> measurementType,
                        Measurement.Listener listener)

Register to receive asynchronous updates for a specific Measurement type. A Measurement is a specific, known VehicleMessage subtype. Use this method to register an object implementing the Measurement.Listener interface to receive real-time updates whenever a new value is received for the specified measurementType. Make sure you unregister your listeners with VehicleManager.removeListener(...) when your activity or service closes and no longer requires updates.

Parameters:

measurementType - The class of the Measurement (e.g. VehicleSpeed.class) the listener was listening for

listener - An listener instance to receive the callback.

addListener

public void addListener(java.lang.Class<? extends VehicleMessage> messageType,
                        VehicleMessage.Listener listener)

Register to receive asynchronous updates for a specific VehicleMessage type. Use this method to register an object implementing the VehicleMessage.Listener interface to receive real-time updates whenever a new value is received for the specified message type. Make sure you unregister your listeners with VehicleManager.removeListener(...) when your activity or service closes and no longer requires updates.

Parameters:

messageType - The class of the VehicleMessage (e.g. SimpleVehicleMessage.class) the listener is listening for

listener - An listener instance to receive the callback.

addListener

public void addListener(KeyedMessage keyedMessage,
                        VehicleMessage.Listener listener)

Register to receive a callback when a message with same key as the given KeyedMessage is received.

Parameters:

keyedMessage - A message with the key you want to receive updates for - the response to a command typically has the same key as the request, so you can use the outgoing message's KeyedMessage to register to receive a response.

listener - An listener instance to receive the callback.

addListener

public void addListener(MessageKey key,
                        VehicleMessage.Listener listener)

Register to receive a callback when a message with the given key is received.

Parameters:

key - The key you want to receive updates.

listener - An listener instance to receive the callback.

addListener

public void addListener(KeyMatcher matcher,
                        VehicleMessage.Listener listener)

Register to receive a callback when a message with key matching the given KeyMatcher is received. This function can be used to set up a wildcard listener, or one that receives a wider range of responses than just a 1 to 1 match of keys.

Parameters:

matcher - A KeyMatcher implement the desired filtering logic.

listener - An listener instance to receive the callback.

removeListener

public void removeListener(java.lang.Class<? extends Measurement> measurementType,
                           Measurement.Listener listener)

Unregister a previously registered Measurement.Listener instance. When an application is no longer interested in receiving measurement updates (e.g. when it's pausing or exiting) it should unregister all previously registered listeners to save on CPU.

Parameters:

measurementType - The class of the requested Measurement (e.g. VehicleSpeed.class)

listener - The listener to remove.

removeListener

public void removeListener(java.lang.Class<? extends VehicleMessage> messageType,
                           VehicleMessage.Listener listener)

Unregister a previously registered message type listener.

Parameters:

messageType - The class of the VehicleMessage this listener was registered to receive. A listener can be registered to receive multiple message types, which is why this must be specified when removing a listener.

listener - The listener to remove.

removeListener

public void removeListener(KeyedMessage message,
                           VehicleMessage.Listener listener)

Unregister a previously registered keyed message listener.

Parameters:

message - The message with the key this listener was previously registered to receive.

listener - The listener to remove.

removeListener

public void removeListener(KeyMatcher matcher,
                           VehicleMessage.Listener listener)

Unregister a previously registered key matcher listener.

Parameters:

matcher - The KeyMatcher this listener was previously registered to receive matches from.

listener - The listener to remove.

removeListener

public void removeListener(MessageKey key,
                           VehicleMessage.Listener listener)

Unregister a previously registered key listener.

Parameters:

key - The key this listener was previously registered to receive updates on.

listener - The listener to remove.

addSource

public void addSource(VehicleDataSource source)

Add a new data source to the vehicle service. For example, to use the trace data source to playback a trace file, call the addSource method after binding with VehicleManager: service.addSource(new TraceVehicleDataSource( new URI("/sdcard/openxc/trace.json"))));

Parameters:

source - an instance of a VehicleDataSource

removeSource

public void removeSource(VehicleDataSource source)

Remove a previously registered source from the data pipeline.

addSink

public void addSink(VehicleDataSink sink)

Add a new data sink to the vehicle service. A data sink added with this method will receive all new measurements as they arrive from registered data sources. For example, to use the trace file recorder sink, call the addSink method after binding with VehicleManager: service.addSink(new FileRecorderSink( new AndroidFileOpener("openxc", this)));

Parameters:

sink - an instance of a VehicleDataSink

removeSink

public void removeSink(VehicleDataSink sink)

Remove a previously registered sink from the data pipeline.

requestCommandMessage

public java.lang.String requestCommandMessage(Command.CommandType type)

Send a command request to the vehicle that does not require any metadata.

Parameters:

type - The command request type to send to the VI.

Returns:

The message returned by the VI in response to this command or null if none was received.

getVehicleInterfaceDeviceId

public java.lang.String getVehicleInterfaceDeviceId()

Query for the unique device ID of the active VI.

Returns:

the device ID string or null if not known.

getVehicleInterfaceVersion

public java.lang.String getVehicleInterfaceVersion()

Query for the firmware version of the active VI.

Returns:

the firmware version string or null if not known.

getVehicleInterfacePlatform

public java.lang.String getVehicleInterfacePlatform()

Query for the platform of the active VI.

Returns:

the platform string or null if not known.

addOnVehicleInterfaceConnectedListener

public void addOnVehicleInterfaceConnectedListener(ViConnectionListener listener)
                                            throws VehicleServiceException

Register a listener to receive a callback when the selected VI is connected.

Parameters:

listener - The listener that should receive the callback.

Throws:

VehicleServiceException

setVehicleInterface

public void setVehicleInterface(java.lang.Class<? extends VehicleInterface> vehicleInterfaceType)
                         throws VehicleServiceException

Change the active vehicle interface to a new type using its default resource identifier. To disable all vehicle interfaces, pass null to this function.

Parameters:

vehicleInterfaceType - the VI type to activate or null to disable all VIs.

Throws:

VehicleServiceException

setVehicleInterface

public void setVehicleInterface(java.lang.Class<? extends VehicleInterface> vehicleInterfaceType,
                                java.lang.String resource)
                         throws VehicleServiceException

Change the active vehicle interface to a new type using the given resource. To disable all vehicle interfaces, pass null to this function. The only valid VehicleInterface types are those included with the library - the vehicle service running in a remote process is the one to actually instantiate the interfaces. Interfaces added with this method will be available for all other OpenXC applications running in the system.

Parameters:

vehicleInterfaceType - A class implementing VehicleInterface that is included in the OpenXC library

resource - A descriptor or a resource necessary to initialize the interface. See the specific implementation of VehicleService to find the required format of this parameter.

Throws:

VehicleServiceException

setNativeGpsStatus

public void setNativeGpsStatus(boolean enabled)

Control whether the device's built-in GPS is used to provide location.

Parameters:

enabled - True if GPS should be read from the Android device and injected as vehicle data whenever a vehicle interface is connected.

setBluetoothPollingStatus

public void setBluetoothPollingStatus(boolean enabled)

Control whether polling is used to connect to a Bluetooth device or not.

Parameters:

enabled - True if polling should be used to connect to a Bluetooth device.

getActiveVehicleInterface

public VehicleInterfaceDescriptor getActiveVehicleInterface()

Returns a descriptor of the active vehicle interface.

Returns:

A VehicleInterfaceDescriptor for the active VI or null if none is enabled.

getMessageCount

public int getMessageCount()
                    throws VehicleServiceException

Read the number of messages received by the vehicle service.

Throws:

VehicleServiceException - if the listener is unable to be unregistered with the library internals - an exceptional situation that shouldn't occur.

isViConnected

public boolean isViConnected()

Return the connection status of the selected VI.

Returns:

true if the selected VI reports that it is connected to the vehicle.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

onPipelineActivated

public void onPipelineActivated()

Specified by:

onPipelineActivated in interface DataPipeline.Operator

onPipelineDeactivated

public void onPipelineDeactivated()

Specified by:

onPipelineDeactivated in interface DataPipeline.Operator

getRemoteCallback

public SourceCallback getRemoteCallback()

getUserCallback

public SourceCallback getUserCallback()