org.graylog2.shared.initializers.ServiceManagerListener Maven / Gradle / Ivy
/**
* This file is part of Graylog.
*
* Graylog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog. If not, see .
*/
package org.graylog2.shared.initializers;
import com.google.common.util.concurrent.Service;
import com.google.common.util.concurrent.ServiceManager.Listener;
import org.graylog2.plugin.ServerStatus;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.inject.Inject;
/**
* @author Dennis Oelkers
*/
public class ServiceManagerListener extends Listener {
private static final Logger LOG = LoggerFactory.getLogger(ServiceManagerListener.class);
private final ServerStatus serverStatus;
@Inject
public ServiceManagerListener(ServerStatus serverStatus) {
this.serverStatus = serverStatus;
}
@Override
public void healthy() {
LOG.info("Services are healthy");
serverStatus.start();
}
@Override
public void stopped() {
LOG.info("Services are now stopped.");
}
@Override
public void failure(Service service) {
// do not log the failure here again, the ServiceManager itself does so already on Level ERROR.
serverStatus.fail();
}
}