de.unikassel.android.sdcframework.util
Class NetworkConnectionObserver

java.lang.Object
  android.content.BroadcastReceiver
      de.unikassel.android.sdcframework.util.NetworkConnectionObserver

All Implemented Interfaces:

ObservableEventSource<NetworkStateChangeEvent>, ObserverRegistration<NetworkStateChangeEvent>

public class NetworkConnectionObserver
extends BroadcastReceiver
implements ObservableEventSource<NetworkStateChangeEvent>

Field Summary

private Context	context The application context.
private ObservableEventSource<NetworkStateChangeEvent>	eventSource The observable event source
private static NetworkConnectionObserver	instance The singleton instance
private AtomicBoolean	isNotConnected last connection state
private boolean	isObserving Observation state flag

Constructor Summary

private

NetworkConnectionObserver(Context context) Constructor

Method Summary

static NetworkConnectionObserver	getInstance(Context context) Getter for the instance
boolean	hasObservers() Test method for observers.
boolean	isConnected() Getter for the last known connection state
private boolean	isNotConnected() Getter for the not connected state
void	notify(NetworkStateChangeEvent data) Does set the changed flag and notifies all observers
void	onReceive(Context context, Intent intent)
void	registerEventObserver(EventObserver<? extends NetworkStateChangeEvent> observer) Does register an observer
void	removeAllObservers() Does remove all registered observers
private void	setNotConnected(boolean isNotConnected) Setter for the not connected state
private void	startObservation() Does start network state observation
private void	stopObservation() Does stop network state observation
void	unregisterEventObserver(EventObserver<? extends NetworkStateChangeEvent> observer) Does delete a registered observer

Methods inherited from class android.content.BroadcastReceiver

abortBroadcast, clearAbortBroadcast, getAbortBroadcast, getDebugUnregister, getResultCode, getResultData, getResultExtras, isInitialStickyBroadcast, isOrderedBroadcast, peekService, setDebugUnregister, setOrderedHint, setResult, setResultCode, setResultData, setResultExtras

Methods inherited from class java.lang.Object

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

Field Detail

eventSource

private final ObservableEventSource<NetworkStateChangeEvent> eventSource

The observable event source

isObserving

private boolean isObserving

Observation state flag

isNotConnected

private final AtomicBoolean isNotConnected

last connection state

context

private Context context

The application context.

instance

private static NetworkConnectionObserver instance

The singleton instance

Constructor Detail

NetworkConnectionObserver

private NetworkConnectionObserver(Context context)

Constructor

Parameters:

context - the application context.

Method Detail

getInstance

public static NetworkConnectionObserver getInstance(Context context)

Getter for the instance

Parameters:

context - the application context.

Returns:

the instance

setNotConnected

private void setNotConnected(boolean isNotConnected)

Setter for the not connected state

Parameters:

isNotConnected - the not connected state to set

isNotConnected

private boolean isNotConnected()

Getter for the not connected state

Returns:

the not connected state

isConnected

public boolean isConnected()

Getter for the last known connection state

Returns:

the last known connection state

startObservation

private void startObservation()

Does start network state observation

stopObservation

private void stopObservation()

Does stop network state observation

onReceive

public void onReceive(Context context,
                      Intent intent)

Specified by:

onReceive in class BroadcastReceiver

registerEventObserver

public void registerEventObserver(EventObserver<? extends NetworkStateChangeEvent> observer)

Description copied from interface: ObserverRegistration

Does register an observer

Specified by:

registerEventObserver in interface ObserverRegistration<NetworkStateChangeEvent>

Parameters:

observer - the observer to add

unregisterEventObserver

public void unregisterEventObserver(EventObserver<? extends NetworkStateChangeEvent> observer)

Description copied from interface: ObserverRegistration

Does delete a registered observer

Specified by:

unregisterEventObserver in interface ObserverRegistration<NetworkStateChangeEvent>

Parameters:

observer - the observer to delete

removeAllObservers

public void removeAllObservers()

Description copied from interface: ObserverRegistration

Does remove all registered observers

Specified by:

removeAllObservers in interface ObserverRegistration<NetworkStateChangeEvent>

notify

public void notify(NetworkStateChangeEvent data)

Description copied from interface: ObservableEventSource

Does set the changed flag and notifies all observers

Specified by:

notify in interface ObservableEventSource<NetworkStateChangeEvent>

Parameters:

data - the observable event data to create notifications for

hasObservers

public boolean hasObservers()

Description copied from interface: ObservableEventSource

Test method for observers.

Specified by:

hasObservers in interface ObservableEventSource<NetworkStateChangeEvent>

Returns:

true if observers are registered, false otherwise