/*

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 * 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.

 */

/*

 * @test

 * @bug     4982289

 * @summary Test MemoryUsage.from() method to return a valid MemoryUsage

 *          or throw exception if the input CompositeData is invalid.

 * @author  Mandy Chung

 *

 * @modules java.management

 * @build MemoryUsageCompositeData

 * @run main MemoryUsageCompositeData

 */

import javax.management.openmbean.*;

import java.lang.management.MemoryUsage;

public class MemoryUsageCompositeData {

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

        createGoodCompositeData();

        badTypeCompositeData();

        badNameCompositeData();

        System.out.println("Test passed");

    }

    public static void createGoodCompositeData() throws Exception {

        final int K = 1024;

        // these values are synchronized with the item names

        final Object[] values = {

            new Long(5 * K),  // committed

            new Long(1 * K),  // init

            new Long(10 * K), // max

            new Long(2 * K),  // used

            "Dummy",

            "Dummy",

        };

        CompositeType muct =

            new CompositeType("MyMemoryUsageCompositeType",

                              "CompositeType for MemoryUsage",

                              memoryUsageItemNames,

                              memoryUsageItemNames,

                              memoryUsageItemTypes);

        CompositeData cd =

            new CompositeDataSupport(muct,

                                     memoryUsageItemNames,

                                     values);

        MemoryUsage u = MemoryUsage.from(cd);

        if (u.getInit() != ((Long) values[INIT]).longValue()) {

            throw new RuntimeException("init = " + u.getInit() +

               " expected = " + values[INIT]);

        }

        if (u.getUsed() != ((Long) values[USED]).longValue()) {

            throw new RuntimeException("used = " + u.getUsed() +

               " expected = " + values[USED]);

        }

        if (u.getCommitted() != ((Long) values[COMMITTED]).longValue()) {

            throw new RuntimeException("committed = " + u.getCommitted() +

               " expected = " + values[COMMITTED]);

        }

        if (u.getMax() != ((Long) values[MAX]).longValue()) {

            throw new RuntimeException("max = " + u.getMax() +

               " expected = " + values[MAX]);

        }

        System.out.println(u);

    }

    public static void badTypeCompositeData() throws Exception {

        final int K = 1024;

        final Object[] values = {

            new Integer(5 * K),

            new Long(1 * K),

            new Long(10 * K),

            new Long(2 * K),

            "Dummy",

            "Dummy",

        };

        CompositeType muct =

            new CompositeType("MyMemoryUsageCompositeType",

                              "CompositeType for MemoryUsage",

                              memoryUsageItemNames,

                              memoryUsageItemNames,

                              badMUItemTypes);

        CompositeData cd =

           new CompositeDataSupport(muct,

                                    memoryUsageItemNames,

                                    values);

        try {

            MemoryUsage u = MemoryUsage.from(cd);

        } catch (IllegalArgumentException e) {

            System.out.println("Expected exception: " +

                e.getMessage());

            return;

        }

        throw new RuntimeException(

            "IllegalArgumentException not thrown");

    }

    public static void badNameCompositeData() throws Exception {

        final int K = 1024;

        final Object[] values = {

            new Long(5 * K),

            new Long(1 * K),

            new Long(10 * K),

            new Long(2 * K),

            "Dummy",

            "Dummy",

        };

        CompositeType muct =

            new CompositeType("MyMemoryUsageCompositeType",

                              "CompositeType for MemoryUsage",

                               badMUItemNames,

                               badMUItemNames,

                               memoryUsageItemTypes);

        CompositeData cd =

            new CompositeDataSupport(muct,

                                     badMUItemNames,

                                     values);

        try {

            MemoryUsage u = MemoryUsage.from(cd);

        } catch (IllegalArgumentException e) {

            System.out.println("Expected exception: " +

                e.getMessage());

            return;

        }

        throw new RuntimeException(

            "IllegalArgumentException not thrown");

    }

    private static final int COMMITTED = 0;

    private static final int INIT      = 1;

    private static final int MAX       = 2;

    private static final int USED      = 3;

    private static final String[] memoryUsageItemNames = {

        "committed",

        "init",

        "max",

        "used",

        "dummy1",

        "dummy2",

    };

    private static final OpenType[] memoryUsageItemTypes = {

        SimpleType.LONG,

        SimpleType.LONG,

        SimpleType.LONG,

        SimpleType.LONG,

        SimpleType.STRING,

        SimpleType.STRING,

    };

    private static final String[] badMUItemNames = {

        "Committed",

        "Init",

        "max",

        "used",

        "dummy1",

        "dummy2",

    };

    private static final OpenType[] badMUItemTypes = {

        SimpleType.INTEGER,

        SimpleType.LONG,

        SimpleType.LONG,

        SimpleType.LONG,

        SimpleType.STRING,

        SimpleType.STRING,

    };

}