D-Net

package eu.dnetlib.functionality.modular.ui.utils;

import java.util.List;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import org.springframework.beans.factory.annotation.Autowired;

import com.google.common.collect.Lists;

import eu.dnetlib.enabling.common.Stoppable;

import eu.dnetlib.enabling.common.StoppableDetails;

import eu.dnetlib.enabling.common.StoppableDetails.StopStatus;

public class ShutdownUtils {

	@Autowired(required=false)

	private List<Stoppable> stoppables = Lists.newArrayList();

	private StopStatus status = StopStatus.RUNNING;

	private static final Log log = LogFactory.getLog(ShutdownUtils.class);

	public  List<StoppableDetails> listStoppableDetails() {

		final List<StoppableDetails> list = Lists.newArrayList();

		for (Stoppable s : stoppables) {

			list.add(s.getStopDetails());

		}

		return list;

	}

	public void stopAll() {

		this.status = StopStatus.STOPPING;

		for (Stoppable s : stoppables) {

			final StoppableDetails info = s.getStopDetails();

			if (info.getStatus() == StopStatus.RUNNING) {

				log.info("Stopping " + info.getName());

				s.stop();

			}

		}

	}

	public StopStatus currentStatus() {

		if (status == StopStatus.STOPPING) {

			int running = 0;

			for (Stoppable s : stoppables) {

				final StoppableDetails info = s.getStopDetails();

				if (info.getStatus() != StopStatus.STOPPED) {

					running++;

				}

			}

			if (running == 0) {

				status = StopStatus.STOPPED;

			}

		}

		return status;

	}

}