/*

 * 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

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 */

/* @test

 * @bug 6442088

 * @summary Change default DNS caching behavior for code not running under

 *          security manager.

 * @compile -XDignore.symbol.file=true SimpleNameService.java

 *                                     SimpleNameServiceDescriptor.java

 * @run main/othervm/timeout=200 -Dsun.net.inetaddr.ttl=20 -Dsun.net.spi.nameservice.provider.1=simple,sun DefaultCaching

 */

import java.net.InetAddress;

import java.net.UnknownHostException;

import java.security.Security;

public class DefaultCaching {

    public static void main(String args[]) throws Exception {

        // name service needs to resolve this.

        SimpleNameService.put("theclub", "129.156.220.219");

        test ("theclub", "129.156.220.219", true);      // lk: 1

        test ("luster", "1.16.20.2", false);            // lk: 2

        // name service now needs to know about luster

        SimpleNameService.put("luster", "10.5.18.21");

        test ("luster", "1.16.20.2", false);            // lk: 2

        sleep (10+1);

        test("luster", "10.5.18.21", true, 3);          // lk: 3

        sleep (5);

        SimpleNameService.put("foo", "10.5.18.22");

        SimpleNameService.put("theclub", "129.156.220.1");

        test ("theclub", "129.156.220.219", true, 3);

        test ("luster", "10.5.18.21", true, 3);

        test ("bar", "10.5.18.22", false, 4);

        test ("foo", "10.5.18.22", true, 5);

        // now delay to see if theclub has expired

        sleep (5);

        test ("foo", "10.5.18.22", true, 5);

        test ("theclub", "129.156.220.1", true, 6);

        sleep (11);

        // now see if luster has expired

        test ("luster", "10.5.18.21", true, 7);

        test ("theclub", "129.156.220.1", true, 7);

        // now delay to see if 3rd has expired

        sleep (10+6);

        test ("theclub", "129.156.220.1", true, 8);

        test ("luster", "10.5.18.21", true, 8);

        test ("foo", "10.5.18.22", true, 9);

    }

    /* throws RuntimeException if it fails */

    static void test (String host, String address,

                        boolean shouldSucceed, int count) {

        test (host, address, shouldSucceed);

        int got = SimpleNameService.lookupCalls();

        if (got != count) {

            throw new RuntimeException ("lookups exp/got: " + count+"/"+got);

        }

    }

    static void sleep (int seconds) {

        try {

            Thread.sleep (seconds * 1000);

        } catch (InterruptedException e) {}

    }

    static void test (String host, String address, boolean shouldSucceed) {

        InetAddress addr = null;

        try {

            addr = InetAddress.getByName (host);

            if (!shouldSucceed) {

                throw new RuntimeException (host+":"+address+": should fail");

            }

            if (!address.equals(addr.getHostAddress())) {

                throw new RuntimeException(host+":"+address+": compare failed");

            }

        } catch (UnknownHostException e) {

            if (shouldSucceed) {

                throw new RuntimeException(host+":"+address+": should succeed");

            }

        }

    }

}