/*******************************************************************************
* 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.plugin.docker.machine.cleaner;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import com.google.inject.Singleton;
import org.eclipse.che.api.core.ServerException;
import org.eclipse.che.api.core.model.workspace.Workspace;
import org.eclipse.che.api.core.notification.EventService;
import org.eclipse.che.api.core.notification.EventSubscriber;
import org.eclipse.che.commons.lang.concurrent.LoggingUncaughtExceptionHandler;
import org.eclipse.che.api.workspace.server.WorkspaceFilesCleaner;
import org.eclipse.che.api.workspace.server.event.WorkspaceRemovedEvent;
import org.eclipse.che.commons.lang.concurrent.ThreadLocalPropagateContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
import java.io.IOException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
/**
* Listener for remove workspace files after {@code WorkspaceRemovedEvent}.
*
* @author Alexander Andrienko
*/
@Singleton
public class RemoveWorkspaceFilesAfterRemoveWorkspaceEventSubscriber implements EventSubscriber<WorkspaceRemovedEvent> {
private static final Logger LOG = LoggerFactory.getLogger(RemoveWorkspaceFilesAfterRemoveWorkspaceEventSubscriber.class);
private final WorkspaceFilesCleaner workspaceFilesCleaner;
private final ExecutorService executor;
private final EventService eventService;
@Inject
public RemoveWorkspaceFilesAfterRemoveWorkspaceEventSubscriber(EventService eventService, WorkspaceFilesCleaner workspaceFilesCleaner) {
this.workspaceFilesCleaner = workspaceFilesCleaner;
this.eventService = eventService;
executor = Executors.newCachedThreadPool(new ThreadFactoryBuilder().setNameFormat("RemoveWorkspaceFilesAfterRemoveWorkspaceEventSubscriber-%d")
.setUncaughtExceptionHandler(
LoggingUncaughtExceptionHandler.getInstance())
.setDaemon(true)
.build());
}
@Override
public void onEvent(WorkspaceRemovedEvent event) {
executor.execute(ThreadLocalPropagateContext.wrap(() -> {
Workspace workspace = event.getWorkspace();
try {
workspaceFilesCleaner.clear(workspace);
} catch (IOException | ServerException e) {
LOG.error("Failed to remove workspace files for workspace with id: '{}'. Cause: '{}'", workspace.getId(), e.getMessage());
}
}));
}
@PostConstruct
public void subscribe() {
eventService.subscribe(this);
}
}