/*

 * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

import java.net.MalformedURLException;

import java.net.URL;

public class Starter implements Runnable {

    private String id;

    private DelegatingLoader dl;

    private String startClass;

    private static DelegatingLoader saLoader, sbLoader;

    public static void log(String line) {

        System.out.println(line);

    }

    public static void main(String[] args) {

        URL[] urlsa = new URL[1];

        URL[] urlsb = new URL[1];

        try {

            String testDir = System.getProperty("test.classes", ".");

            String sep = System.getProperty("file.separator");

            urlsa[0] = new URL("file://" + testDir + sep + "SA" + sep);

            urlsb[0] = new URL("file://" + testDir + sep + "SB" + sep);

        } catch (MalformedURLException e) {

            e.printStackTrace();

        }

        // Set up Classloader delegation hierarchy

        saLoader = new DelegatingLoader(urlsa);

        sbLoader = new DelegatingLoader(urlsb);

        String[] saClasses = { "comSA.SupBob", "comSA.Alice" };

        String[] sbClasses = { "comSB.SupAlice", "comSB.Bob" };

        saLoader.setDelegate(sbClasses, sbLoader);

        sbLoader.setDelegate(saClasses, saLoader);

        // test one-way delegate

        String testType = args[0];

        if (testType.equals("one-way")) {

            test("comSA.Alice", "comSA.SupBob");

        } else if (testType.equals("cross")) {

            // test cross delegate

            test("comSA.Alice", "comSB.Bob");

        } else {

            System.out.println("ERROR: unsupported - " + testType);

        }

    }

    private static void test(String clsForSA, String clsForSB) {

        Starter ia = new Starter("SA", saLoader, clsForSA);

        Starter ib = new Starter("SB", sbLoader, clsForSB);

        new Thread(ia).start();

        new Thread(ib).start();

    }

    public static void sleep() {

        try {

            Thread.sleep(500);

        } catch (InterruptedException e) {

            e.printStackTrace();

            log("Thread interrupted");

        }

    }

    private Starter(String id, DelegatingLoader dl, String startClass) {

        this.id = id;

        this.dl = dl;

        this.startClass = startClass;

    }

    public void run() {

        log("Spawned thread " + id + " running");

        try {

            // To mirror the WAS deadlock, need to ensure class load

            // is routed via the VM.

            Class.forName(startClass, true, dl);

        } catch (ClassNotFoundException e) {

            e.printStackTrace();

        }

        log("Thread " + id + " terminating");

    }

}