1 /*

     2  * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.

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

     4  *

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

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

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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

    13  * accompanied this code).

    14  *

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

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

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

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

    21  * questions.

    22  */

    23 

    24 import com.sun.management.HotSpotDiagnosticMXBean;

    25 import com.sun.management.VMOption;

    26 import java.lang.management.ManagementFactory;

    27 import java.util.Arrays;

    28 import java.util.Set;

    29 import java.util.stream.Collectors;

    30 import javax.management.MBeanServerConnection;

    31 import javax.management.openmbean.CompositeData;

    32 import javax.management.openmbean.CompositeType;

    33 import javax.management.openmbean.OpenType;

    34 

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

    36 

    37 /*

    38  * @test

    39  * @bug     8042901

    40  * @summary Check that MappedMXBeanType.toOpenTypeData supports VMOption

    41  * @author  Shanliang Jiang

    42  */

    43 public class VMOptionOpenDataTest {

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

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

    46     };

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

    48         STRING, STRING, STRING, BOOLEAN

    49     };

    50 

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

    52         MBeanServerConnection msc = ManagementFactory.getPlatformMBeanServer();

    53         HotSpotDiagnosticMXBean mxbean =

    54             ManagementFactory.getPlatformMXBean(msc, HotSpotDiagnosticMXBean.class);

    55 

    56 

    57         String[] signatures = new String[] {

    58             String.class.getName()

    59         };

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

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

    62 

    63         CompositeData data = (CompositeData)obj;

    64         validateType(data);

    65 

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

    67         VMOption o = VMOption.from(data);

    68         assertEquals(option, o);

    69     }

    70 

    71     private static void validateType(CompositeData data) {

    72         CompositeType type = data.getCompositeType();

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

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

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

    76         }

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

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

    79             if (t != types[i]) {

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

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

    82             }

    83         }

    84     }

    85 

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

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

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

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

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

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

    92         }

    93 

    94     }

    95 

    96 }