Examples with OperatingSystemMXBean java.lang.management.OperatingSystemMXBean used on opensource projects

Example 71 with OperatingSystemMXBean

use of java.lang.management.OperatingSystemMXBean in project openj9 by eclipse.

the class TestManagementFactory method testGetOperatingSystemMXBean.

@Test
public final void testGetOperatingSystemMXBean() {
    OperatingSystemMXBean ob1 = ManagementFactory.getOperatingSystemMXBean();
    AssertJUnit.assertNotNull(ob1);
    // Verify that there is only instance of the this bean
    OperatingSystemMXBean ob2 = ManagementFactory.getOperatingSystemMXBean();
    AssertJUnit.assertNotNull(ob2);
    AssertJUnit.assertSame(ob1, ob2);
}

Example 72 with OperatingSystemMXBean

use of java.lang.management.OperatingSystemMXBean in project openj9 by eclipse.

the class TestManagementFactory method testOperatingSystemMXBeanProxy.

@Test
public void testOperatingSystemMXBeanProxy() {
    try {
        OperatingSystemMXBean proxy = ManagementFactory.newPlatformMXBeanProxy(ManagementFactory.getPlatformMBeanServer(), "java.lang:type=OperatingSystem", OperatingSystemMXBean.class);
        AssertJUnit.assertNotNull(proxy);
        AssertJUnit.assertNotNull(proxy.toString());
        AssertJUnit.assertEquals("java.lang:type=OperatingSystem", proxy.getObjectName().toString());
        AssertJUnit.assertEquals(proxy.getArch(), ManagementFactory.getOperatingSystemMXBean().getArch());
        AssertJUnit.assertEquals(proxy.getName(), ManagementFactory.getOperatingSystemMXBean().getName());
        AssertJUnit.assertEquals(proxy.getVersion(), ManagementFactory.getOperatingSystemMXBean().getVersion());
        AssertJUnit.assertEquals(proxy.getAvailableProcessors(), ManagementFactory.getOperatingSystemMXBean().getAvailableProcessors());
    } catch (IOException e) {
        Assert.fail("Unexpected IOException : " + e.getMessage());
        e.printStackTrace();
    }
}

Example 73 with OperatingSystemMXBean

use of java.lang.management.OperatingSystemMXBean in project rocketmq by apache.

the class StoreUtil method getTotalPhysicalMemorySize.

@SuppressWarnings("restriction")
public static long getTotalPhysicalMemorySize() {
    long physicalTotal = 1024 * 1024 * 1024 * 24L;
    OperatingSystemMXBean osmxb = ManagementFactory.getOperatingSystemMXBean();
    if (osmxb instanceof com.sun.management.OperatingSystemMXBean) {
        physicalTotal = ((com.sun.management.OperatingSystemMXBean) osmxb).getTotalPhysicalMemorySize();
    }
    return physicalTotal;
}

Example 74 with OperatingSystemMXBean

use of java.lang.management.OperatingSystemMXBean in project openolat by klemens.

the class SystemWebService method getEnvironnementXml.

/**
 * Return some informations about the environment.
 * @response.representation.200.qname {http://www.example.com}environmentVO
 * @response.representation.200.mediaType application/xml, application/json
 * @response.representation.200.doc A short summary of the number of classes
 * @response.representation.200.example {@link org.olat.restapi.system.vo.Examples#SAMPLE_ENVVO}
 * @response.representation.401.doc The roles of the authenticated user are not sufficient
 * @param request The HTTP request
 * @return The informations about the environment
 */
@GET
@Path("environment")
@Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
public Response getEnvironnementXml(@Context HttpServletRequest request) {
    if (!isAdminOrSystem(request)) {
        return null;
    }
    OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
    RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
    EnvironmentInformationsVO vo = new EnvironmentInformationsVO(os, runtime);
    return Response.ok(vo).build();
}

Example 75 with OperatingSystemMXBean

use of java.lang.management.OperatingSystemMXBean in project vertigo by KleeGroup.

the class SystemMetricsProvider method getSystemMetrics.

@Metrics
public List<Metric> getSystemMetrics() {
    final OperatingSystemMXBean operatingSystemMXBean = ManagementFactory.getOperatingSystemMXBean();
    final Runtime runtime = Runtime.getRuntime();
    // ---
    final Metric memoryUsed = buildMetric("memoryUsed", () -> Long.valueOf(runtime.totalMemory() / 1024 / 1024).doubleValue());
    final Metric memoryUsedPercent = buildMetric("memoryUsedPercent", () -> Long.valueOf(runtime.totalMemory()).doubleValue() / runtime.maxMemory() * 100);
    final Metric cpuUsage = buildMetric("cpuUsage", () -> operatingSystemMXBean.getSystemLoadAverage());
    // ---
    return Arrays.asList(memoryUsed, memoryUsedPercent, cpuUsage);
}