1 /*

     2  * Copyright (c) 2018, 2019, 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 

    25 package org.graalvm.compiler.hotspot.management;

    26 

    27 import static java.lang.Thread.currentThread;

    28 

    29 import java.lang.management.ManagementFactory;

    30 import java.util.List;

    31 

    32 import org.graalvm.compiler.serviceprovider.ServiceProvider;

    33 import org.graalvm.compiler.serviceprovider.JMXService;

    34 

    35 import com.sun.management.ThreadMXBean;

    36 

    37 /**

    38  * Implementation of {@link JMXService} for JDK 13 and later.

    39  */

    40 @ServiceProvider(JMXService.class)

    41 public class JMXServiceProvider extends JMXService {

    42     private final ThreadMXBean threadMXBean = (ThreadMXBean) ManagementFactory.getThreadMXBean();

    43 

    44     @Override

    45     protected long getThreadAllocatedBytes(long id) {

    46         return threadMXBean.getThreadAllocatedBytes(id);

    47     }

    48 

    49     @Override

    50     protected long getCurrentThreadCpuTime() {

    51         long[] times = threadMXBean.getThreadCpuTime(new long[]{currentThread().getId()});

    52         return times[0];

    53     }

    54 

    55     @Override

    56     protected boolean isThreadAllocatedMemorySupported() {

    57         return threadMXBean.isThreadAllocatedMemorySupported();

    58     }

    59 

    60     @Override

    61     protected boolean isCurrentThreadCpuTimeSupported() {

    62         return threadMXBean.isThreadCpuTimeSupported();

    63     }

    64 

    65     @Override

    66     protected List<String> getInputArguments() {

    67         return ManagementFactory.getRuntimeMXBean().getInputArguments();

    68     }

    69 }