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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.

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import com.sun.management.HotSpotDiagnosticMXBean;

import com.sun.management.VMOption;

import java.lang.management.ManagementFactory;

import java.util.Arrays;

import java.util.Set;

import java.util.stream.Collectors;

import javax.management.MBeanServerConnection;

import javax.management.openmbean.CompositeData;

import javax.management.openmbean.CompositeType;

import javax.management.openmbean.OpenType;

import static javax.management.openmbean.SimpleType.*;

/*

 * @test

 * @bug     8042901

 * @summary Check that MappedMXBeanType.toOpenTypeData supports VMOption

 * @author  Shanliang Jiang

 */

public class VMOptionOpenDataTest {

    private static final String[] names = new String[] {

        "name", "value", "origin", "writeable"

    };

    private static final OpenType[] types = new OpenType[] {

        STRING, STRING, STRING, BOOLEAN

    };

    public static void main(String... args) throws Exception {

        MBeanServerConnection msc = ManagementFactory.getPlatformMBeanServer();

        HotSpotDiagnosticMXBean mxbean =

            ManagementFactory.getPlatformMXBean(msc, HotSpotDiagnosticMXBean.class);

        String[] signatures = new String[] {

            String.class.getName()

        };

        Object obj = msc.invoke(mxbean.getObjectName(), "getVMOption",

            new String[] { "PrintVMOptions"}, signatures);

        CompositeData data = (CompositeData)obj;

        validateType(data);

        VMOption option = mxbean.getVMOption("PrintVMOptions");

        VMOption o = VMOption.from(data);

        assertEquals(option, o);

    }

    private static void validateType(CompositeData data) {

        CompositeType type = data.getCompositeType();

        Set<String> keys = Arrays.stream(names).collect(Collectors.toSet());

        if (!type.keySet().equals(keys)) {

            throw new RuntimeException("key not matched: " + type.keySet().toString());

        }

        for (int i=0; i < names.length; i++) {

            OpenType t = type.getType(names[i]);

            if (t != types[i]) {

                throw new AssertionError(names[i] + ": type not matched: " +

                    t + " expected: " + types[i]);

            }

        }

    }

    private static void assertEquals(VMOption o1, VMOption o2) {

        if (!o1.getName().equals(o2.getName()) ||

            !o1.getOrigin().equals(o2.getOrigin()) ||

            !o1.getValue().equals(o2.getValue()) ||

            o1.isWriteable() != o2.isWriteable()) {

            throw new AssertionError(o1 + " != " + o2);

        }

    }

}