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Neo4j web server.

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/*
 * Copyright (c) 2002-2016 "Neo Technology,"
 * Network Engine for Objects in Lund AB [http://neotechnology.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j 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.
 *
 * This program 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 this program.  If not, see .
 */
package org.neo4j.server;

import java.io.File;
import java.util.Optional;
import java.util.concurrent.CountDownLatch;

import org.neo4j.helpers.collection.Pair;

public class BlockingBootstrapper implements Bootstrapper
{
    private final Bootstrapper wrapped;
    private final CountDownLatch latch;

    public BlockingBootstrapper( Bootstrapper wrapped )
    {
        this.wrapped = wrapped;
        this.latch = new CountDownLatch( 1 );
    }

    @SafeVarargs
    @Override
    public final int start( Optional configFile, Pair... configOverrides )
    {
        int status = wrapped.start( configFile, configOverrides );
        if ( status != ServerBootstrapper.OK )
        {
            return status;
        }

        try
        {
            latch.await();
        }
        catch ( InterruptedException e )
        {
            Thread.currentThread().interrupt();
        }

        return wrapped.stop();
    }

    @Override
    public int stop()
    {
        latch.countDown();
        return 0;
    }
}