kaos.aci.flexfeed
Class VideoFeedObservable

java.lang.Object
  kaos.core.csi.observe.KAoSObservableImpl
      kaos.aci.flexfeed.VideoFeedObservable

All Implemented Interfaces:

KAoSObservable

public class VideoFeedObservable
extends KAoSObservableImpl

Author:

jlott

Field Summary

static java.lang.String	VIDEO_FEED_FPS
static java.lang.String	VIDEO_FEED_RESOLUTION
static java.lang.String	VIDEO_FEED_SOURCE_NODE
static java.lang.String	VIDEO_FEED_TIMELAG
static java.lang.String	VIDEO_FEED_UPDATE

Fields inherited from class kaos.core.csi.observe.KAoSObservableImpl

_logger

Constructor Summary

VideoFeedObservable(java.lang.String sourceName)
Creates a new instance of VideoFeedObservable

Method Summary

void	deregisterObserver(java.lang.String updateType, java.lang.Object updateCondition, KAoSObserver observer) Deregister the given KAoSObserver for the given update type from the registry of observers associated with this KAoSObservable.
void	feedTerminated(java.lang.String feedId) Invoked by the framework to signal the termination of a feed.
java.lang.String	getName()
void	registerObserver(java.lang.String updateType, java.lang.Object updateCondition, KAoSObserver observer) Register an observer to get a video feed
void	updateArrived(java.lang.String feedID, byte[] feedUpdate)

Methods inherited from class kaos.core.csi.observe.KAoSObservableImpl

isObserverRegisteredForCondition, notify

Methods inherited from class java.lang.Object

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

Field Detail

VIDEO_FEED_UPDATE

public static final java.lang.String VIDEO_FEED_UPDATE

See Also:

Constant Field Values

VIDEO_FEED_SOURCE_NODE

public static final java.lang.String VIDEO_FEED_SOURCE_NODE

See Also:

Constant Field Values

VIDEO_FEED_RESOLUTION

public static final java.lang.String VIDEO_FEED_RESOLUTION

See Also:

Constant Field Values

VIDEO_FEED_FPS

public static final java.lang.String VIDEO_FEED_FPS

See Also:

Constant Field Values

VIDEO_FEED_TIMELAG

public static final java.lang.String VIDEO_FEED_TIMELAG

See Also:

Constant Field Values

Constructor Detail

VideoFeedObservable

public VideoFeedObservable(java.lang.String sourceName)
                    throws java.lang.Exception

Creates a new instance of VideoFeedObservable

Throws:

java.lang.Exception

Method Detail

registerObserver

public void registerObserver(java.lang.String updateType,
                             java.lang.Object updateCondition,
                             KAoSObserver observer)

Register an observer to get a video feed

Specified by:

registerObserver in interface KAoSObservable

Overrides:

registerObserver in class KAoSObservableImpl

Parameters:

updateType - the only valid type is VIDEO_FEED_UPDATE

updateCondition - must be a Hashtable containing the following key/values: VIDEO_FEED_RESOLUTION - String indicating the resolution VIDEO_FEED_FPS - Double indicating the frames per second VIDEO_FEED_TIMELAG (optional) - Integer indicating the time delay

observer - KAoSObserver registering with for updates.

deregisterObserver

public void deregisterObserver(java.lang.String updateType,
                               java.lang.Object updateCondition,
                               KAoSObserver observer)

Description copied from class: KAoSObservableImpl

Deregister the given KAoSObserver for the given update type from the registry of observers associated with this KAoSObservable.

Specified by:

deregisterObserver in interface KAoSObservable

Overrides:

deregisterObserver in class KAoSObservableImpl

Parameters:

updateType - String indicating type of update the KAoSObserver is no longer interested in. For now the DS would handle only KAoSConstants.REGISTRATION_UPDATE.

updateCondition - See the same in the method heading for registerObserver.

observer - the KAoSObserver deregistering.

feedTerminated

public void feedTerminated(java.lang.String feedId)

Invoked by the framework to signal the termination of a feed.

Parameters:

feedId - the unique id for the feed being terminated.

getName

public java.lang.String getName()

updateArrived

public void updateArrived(java.lang.String feedID,
                          byte[] feedUpdate)