/*******************************************************************************
* 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.maven.server;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
*
* Manages and cache MavenServerWrapper instances
*
* @author Evgen Vidolob
*/
@Singleton
public class MavenWrapperManager {
private final MavenServerManager serverManager;
private final Map<ServerType, MavenServerWrapper> cache = new HashMap<>();
private final Set<MavenServerWrapper> usedServers = new HashSet<>();
@Inject
public MavenWrapperManager(MavenServerManager serverManager) {
this.serverManager = serverManager;
}
public synchronized MavenServerWrapper getMavenServer(ServerType type) {
MavenServerWrapper wrapper = cache.get(type);
if (wrapper == null) {
wrapper = serverManager.createMavenServer();
cache.put(type, wrapper);
}
if (usedServers.contains(wrapper)) {
//need to warn here
return serverManager.createMavenServer();
}
usedServers.add(wrapper);
return wrapper;
}
public synchronized void release(MavenServerWrapper wrapper) {
if (usedServers.contains(wrapper)) {
wrapper.reset();
usedServers.remove(wrapper);
} else {
wrapper.dispose();
}
}
public enum ServerType {
RESOLVE, DOWNLOAD
}
}