ShutdownNotification.java example

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datakernel-master
/*
 * Copyright (C) 2015 SoftIndex LLC.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.datakernel.launcher;

import com.google.inject.Singleton;

import java.util.concurrent.CountDownLatch;

@Singleton
public final class ShutdownNotification implements ShutdownNotificationMBean {
	private final CountDownLatch latch = new CountDownLatch(1);

	public ShutdownNotification() {}

	public static ShutdownNotification create() {return new ShutdownNotification();}

	public void await() throws InterruptedException {
		latch.await();
	}

	@Override
	public void requestShutdown() {
		latch.countDown();
	}
}