/*******************************************************************************
* 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.workspace.server.event;
import org.eclipse.che.api.core.ConflictException;
import org.eclipse.che.api.core.NotFoundException;
import org.eclipse.che.api.core.ServerException;
import org.eclipse.che.api.core.notification.EventService;
import org.eclipse.che.api.core.notification.EventSubscriber;
import org.eclipse.che.api.machine.shared.dto.event.MachineStatusEvent;
import org.eclipse.che.api.workspace.server.WorkspaceManager;
import org.eclipse.che.api.workspace.server.model.impl.WorkspaceImpl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.inject.Inject;
import javax.inject.Singleton;
import static org.eclipse.che.api.core.model.workspace.WorkspaceStatus.RUNNING;
import static org.eclipse.che.api.machine.shared.dto.event.MachineStatusEvent.EventType.DESTROYED;
/**
* The class listens changing of machine status and perform some actions when status is changed.
*
* @author Dmitry Shnurenko
*/
@Singleton
public class MachineStateListener implements EventSubscriber<MachineStatusEvent> {
private static final Logger LOG = LoggerFactory.getLogger(MachineStateListener.class);
private final WorkspaceManager workspaceManager;
private final EventService eventService;
@Inject
public MachineStateListener(WorkspaceManager workspaceManager, EventService eventService) {
this.workspaceManager = workspaceManager;
this.eventService = eventService;
}
@Override
public void onEvent(MachineStatusEvent event) {
String workspaceId = event.getWorkspaceId();
if (event.isDev() && DESTROYED.equals(event.getEventType())) {
try {
WorkspaceImpl currentWorkspace = workspaceManager.getWorkspace(workspaceId);
if (RUNNING.equals(currentWorkspace.getStatus())) {
workspaceManager.stopWorkspace(workspaceId);
}
} catch (ServerException | ConflictException exception) {
LOG.error(exception.getLocalizedMessage(), exception);
} catch (NotFoundException ignored) {
}
}
}
@PostConstruct
private void subscribe() {
eventService.subscribe(this);
}
@PreDestroy
private void unsubscribe() {
eventService.unsubscribe(this);
}
}