/*******************************************************************************
* Copyright (c) 2012-2017 Codenvy, S.A.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Codenvy, S.A. - initial API and implementation
*******************************************************************************/
package org.eclipse.che.api.project.server.notification;
import org.eclipse.che.api.core.notification.EventService;
import org.eclipse.che.api.core.notification.EventSubscriber;
import org.eclipse.che.api.project.shared.dto.event.VfsWatchEvent;
import org.eclipse.che.dto.server.DtoFactory;
import org.everrest.websockets.WSConnectionContext;
import org.everrest.websockets.message.ChannelBroadcastMessage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.inject.Inject;
/**
*
* Subscribes on VFS Watcher events and broadcasts them with websockets
* @author gazarenkov
*/
public class VfsWatchBroadcaster implements EventSubscriber<VfsWatchEvent> {
private static final Logger LOG = LoggerFactory.getLogger(VfsWatchBroadcaster.class);
private final EventService eventService;
@Inject
public VfsWatchBroadcaster(EventService eventService) {
this.eventService = eventService;
}
@Override
public void onEvent(VfsWatchEvent event) {
try {
final ChannelBroadcastMessage bm = new ChannelBroadcastMessage();
bm.setChannel(VfsWatchEvent.VFS_CHANNEL);
bm.setBody(DtoFactory.getInstance().toJson(event));
WSConnectionContext.sendMessage(bm);
} catch (Exception e) {
LOG.error(e.getLocalizedMessage(), e);
}
}
@PostConstruct
private void subscribe() {
eventService.subscribe(this);
}
@PreDestroy
private void unsubscribe() {
eventService.unsubscribe(this);
}
}