Sl4aEventDispatcher

public class Sl4aEventDispatcher
extends Object

java.lang.Object
↳	com.android.tradefed.util.sl4a.Sl4aEventDispatcher

---

Event dispatcher polls for event and queue them by name to be queried. TODO: add support for event handlers.

Summary

Nested classes
class	Sl4aEventDispatcher.EventSl4aObject Object returned by the event poller.

Fields
public static final String	SHUTDOWN_EVENT

Public constructors
Sl4aEventDispatcher(Sl4aClient client, long timeout)

Public methods
void	cancel() Stop the thread execution and clean up all the events.
void	clearAllEvents() clear all the events
void	clearEvents(String name) Clear all the events for one event name.
	popAllEvents(String name) Return all the events of one type, or empty list if no event.
Sl4aEventDispatcher.EventSl4aObject	popEvent(String name, long timeout) Poll for one event by name
void	run()
Sl4aEventDispatcher.EventSl4aObject	waitForEvent(String name, predicate, long timeout) Poll for a particular event that match the name and predicate.

Protected methods
boolean	internalPolling() Internal polling of events, should not be called.

Fields

SHUTDOWN_EVENT

public static final String SHUTDOWN_EVENT

Public constructors

Sl4aEventDispatcher

public Sl4aEventDispatcher (Sl4aClient client, 
                long timeout)

Parameters
client	Sl4aClient
timeout	long

Public methods

cancel

public void cancel ()

Stop the thread execution and clean up all the events.

clearAllEvents

public void clearAllEvents ()

clear all the events

clearEvents

public void clearEvents (String name)

Clear all the events for one event name.

Parameters
name	String

popAllEvents

public  popAllEvents (String name)

Return all the events of one type, or empty list if no event.

Parameters
name	String

Returns

popEvent

public Sl4aEventDispatcher.EventSl4aObject popEvent (String name, 
                long timeout)

Poll for one event by name

Parameters
name	String: the name of the event.
timeout	long: the timeout in millisecond for the pop event to return.

Returns
Sl4aEventDispatcher.EventSl4aObject	the EventSl4aObject or null if no event found.

run

public void run ()

waitForEvent

public Sl4aEventDispatcher.EventSl4aObject waitForEvent (String name, 
                 predicate, 
                long timeout)

Poll for a particular event that match the name and predicate.

Parameters
name	String: the name of the event.
predicate	: the predicate the event needs to pass.
timeout	long: timeout the timeout in millisecond for the pop event to return.

Returns
Sl4aEventDispatcher.EventSl4aObject	the EventSl4aObject or null if no event found.

Protected methods

internalPolling

protected boolean internalPolling ()

Internal polling of events, should not be called. Exposed for testing.

Returns
boolean