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/*
 * Copyright (c) 1997, 2022 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package testutil;

import java.net.ServerSocket;
import java.io.IOException;

/**
 * Finds the free socket port so that an endpoint can be published without
 * any conflicts
 *
 * @author Jitendra Kotamraju
 */
public class PortAllocator {

    public static int getFreePort() {
        try (ServerSocket soc = new ServerSocket(0)) {
            soc.setReuseAddress(true);
            return soc.getLocalPort();
        } catch (IOException ioe) {
            throw new RuntimeException(ioe);
        }
        // cannot do much
    }

}