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/*
 * Copyright 2021 EPAM Systems, Inc
 *
 * See the NOTICE file distributed with this work for additional information
 * regarding copyright ownership. 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 com.epam.deltix.util.lang;

import java.io.Closeable;

/** Simple mechanism to ensure that {@link Closeable#close()} is called on JVM shutdown (e.g. in event of Ctrl+C) */
public class ShutdownHook extends Thread {
    private final Closeable [] closeables;

    public ShutdownHook(Closeable ... closeables) {
        this.closeables = closeables;
    }

    public static void closeOnShutdown (Closeable ... closeables) {
        ShutdownHook shutdownHook = new ShutdownHook(closeables);
        Runtime.getRuntime().addShutdownHook(shutdownHook);
    }

    @Override
    public void run() {
        for (Closeable closeable : closeables)
            Util.close (closeable);
    }
}