On Thu, May 28, 2020 at 9:43 AM fanfy <[email protected]> wrote:
> Hello,I finally found the problem ... It seems that I didn't understood
> very
> well how to use WebSocketMessageBroadcaster from wicket-spring-boot. The
> proper way to broadcast websocket messages from an ajax call is to use
> org.apache.wicket.protocol.ws.api.WebSocketPushBroadcaster with an
> additional configuration of the Executor that must broadcast the messages
> using a separate threadFor example, if using springframework (with wicket
> application as a bean) you must configure the executor:
> java.util.concurrent.Executor executor =
> Executors.newSingleThreadExecutor();
>
> WebSocketSettings.Holder.get(webApplication).setWebSocketPushMessageExecutor(new
> Executor() { @Override
> public void run(Runnable command) {
> executor.execute(command); } });
> To broadcast messages from business code you can use spring events
> (published from your business code) To broadcast from ajax handlers inject
> this bean and call broadcastToAll(event) directly.
> /** * * @author Elvis Ciocoiu * */@Componentpublic class
> TaskEventWebSocketBroadcaster { private WebSocketPushBroadcaster
> broadcaster; @Autowired private Application application;
> @PostConstruct
> public void init() { WebSocketSettings webSocketSettings =
> WebSocketSettings.Holder.get(application);
> IWebSocketConnectionRegistry
> webSocketConnectionRegistry = webSocketSettings.getConnectionRegistry();
>
> broadcaster = new WebSocketPushBroadcaster(webSocketConnectionRegistry);
> }
> @EventListener public void onTaskEvent(TaskEvent taskEvent) {
> broadcastToAll(taskEvent); } public void
> broadcastToAll(TaskEvent
> taskEvent) { broadcaster.broadcastAll(application, new
> TaskEventWebSocketPushMessage(taskEvent)); } /**
> * * @author Elvis
> Ciocoiu * */ public static class TaskEventWebSocketPushMessage
> implements
> IWebSocketPushMessage { private static final long serialVersionUID
> = 1L;
> private TaskEvent taskEvent; public
> TaskEventWebSocketPushMessage(TaskEvent taskEvent) {
> this.taskEvent =
> taskEvent; } public TaskEvent
> getTaskEvent() { return taskEvent; }
> }}
> I think these distinct scenarios (broadcast from ajaxhandler and from
> business thread) should be documented a little more in user guide. Sorry to
> waste your time.Thank you
>
https://issues.apache.org/jira/browse/WICKET-6791
https://github.com/apache/wicket/pull/435
Thank you!
>
> --
> Sent from:
> http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [email protected]
> For additional commands, e-mail: [email protected]
>
>
