Package java.lang.management

Examples of java.lang.management.OperatingSystemMXBean

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    /*
     * Test method for
     * 'java.lang.management.ManagementFactory.getOperatingSystemMXBean()'
     */
    public void testGetOperatingSystemMXBean() {
        OperatingSystemMXBean mb = ManagementFactory.getOperatingSystemMXBean();
        assertNotNull(mb);

        // Verify that there is only instance of this bean
        OperatingSystemMXBean mb2 = ManagementFactory
                .getOperatingSystemMXBean();
        assertNotNull(mb2);
        assertSame(mb, mb2);
    }
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     * 'java.lang.management.ManagementFactory.newPlatformMXBeanProxy(MBeanServerConnection,
     * String, Class<T>) <T>'
     */
    public void testNewPlatformMXBeanProxy_OperatingSystemMXBean()
            throws Exception {
        OperatingSystemMXBean proxy = ManagementFactory.newPlatformMXBeanProxy(
                ManagementFactory.getPlatformMBeanServer(),
                "java.lang:type=OperatingSystem", OperatingSystemMXBean.class);
        assertNotNull(proxy);
        OperatingSystemMXBean mb = ManagementFactory.getOperatingSystemMXBean();
        assertEquals(mb.getArch(), proxy.getArch());
        assertEquals(mb.getAvailableProcessors(), proxy
                .getAvailableProcessors());
        assertEquals(mb.getVersion(), proxy.getVersion());
        assertEquals(mb.getName(), proxy.getName());
    }
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    protected Object doExecute() throws Exception {
        int maxNameLen;

        RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
        OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
        ThreadMXBean threads = ManagementFactory.getThreadMXBean();
        MemoryMXBean mem = ManagementFactory.getMemoryMXBean();
        ClassLoadingMXBean cl = ManagementFactory.getClassLoadingMXBean();

        //
        // print Karaf informations
        //
        maxNameLen = 25;
        System.out.println("Karaf");
        printValue("Karaf version", maxNameLen, System.getProperty("karaf.version"));
        printValue("Karaf home", maxNameLen, System.getProperty("karaf.home"));
        printValue("Karaf base", maxNameLen, System.getProperty("karaf.base"));
        printValue("OSGi Framework", maxNameLen, bundleContext.getBundle(0).getSymbolicName() + " - " +
                bundleContext.getBundle(0).getVersion());
        System.out.println();

        System.out.println("JVM");
        printValue("Java Virtual Machine", maxNameLen, runtime.getVmName() + " version " + runtime.getVmVersion());
        printValue("Version", maxNameLen, System.getProperty("java.version"));
        printValue("Vendor", maxNameLen, runtime.getVmVendor());
        printValue("Uptime", maxNameLen, printDuration(runtime.getUptime()));
        try {
            printValue("Process CPU time", maxNameLen, printDuration(getSunOsValueAsLong(os, "getProcessCpuTime") / 1000000));
        } catch (Throwable t) {
        }
        printValue("Total compile time", maxNameLen, printDuration(ManagementFactory.getCompilationMXBean().getTotalCompilationTime()));

        System.out.println("Threads");
        printValue("Live threads", maxNameLen, Integer.toString(threads.getThreadCount()));
        printValue("Daemon threads", maxNameLen, Integer.toString(threads.getDaemonThreadCount()));
        printValue("Peak", maxNameLen, Integer.toString(threads.getPeakThreadCount()));
        printValue("Total started", maxNameLen, Long.toString(threads.getTotalStartedThreadCount()));

        System.out.println("Memory");
        printValue("Current heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getUsed()));
        printValue("Maximum heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getMax()));
        printValue("Committed heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getCommitted()));
        printValue("Pending objects", maxNameLen, Integer.toString(mem.getObjectPendingFinalizationCount()));
        for (GarbageCollectorMXBean gc : ManagementFactory.getGarbageCollectorMXBeans()) {
            String val = "Name = '" + gc.getName() + "', Collections = " + gc.getCollectionCount() + ", Time = " + printDuration(gc.getCollectionTime());
            printValue("Garbage collector", maxNameLen, val);
        }

        System.out.println("Classes");
        printValue("Current classes loaded", maxNameLen, printLong(cl.getLoadedClassCount()));
        printValue("Total classes loaded", maxNameLen, printLong(cl.getTotalLoadedClassCount()));
        printValue("Total classes unloaded", maxNameLen, printLong(cl.getUnloadedClassCount()));

        System.out.println("Operating system");
        printValue("Name", maxNameLen, os.getName() + " version " + os.getVersion());
        printValue("Architecture", maxNameLen, os.getArch());
        printValue("Processors", maxNameLen, Integer.toString(os.getAvailableProcessors()));
        try {
            printValue("Total physical memory", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getTotalPhysicalMemorySize")));
            printValue("Free physical memory", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getFreePhysicalMemorySize")));
            printValue("Committed virtual memory", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getCommittedVirtualMemorySize")));
            printValue("Total swap space", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getTotalSwapSpaceSize")));
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        list.size(),
        uptime(now - oldest));
  }

  private void jvmSummary() {
    OperatingSystemMXBean osBean = ManagementFactory.getOperatingSystemMXBean();
    RuntimeMXBean runtimeBean = ManagementFactory.getRuntimeMXBean();
    stdout.format("JVM: %s %s %s\n",
        runtimeBean.getVmVendor(),
        runtimeBean.getVmName(),
        runtimeBean.getVmVersion());
    stdout.format("  on %s %s %s\n", "",
        osBean.getName(),
        osBean.getVersion(),
        osBean.getArch());
    try {
      stdout.format("  running as %s on %s\n",
          System.getProperty("user.name"),
          InetAddress.getLocalHost().getHostName());
    } catch (UnknownHostException e) {
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        _outputBuffer = blockManager.getBlockFromPool();
    }

    protected static int getNThreads() {
        int nThreads = Runtime.getRuntime().availableProcessors();
        OperatingSystemMXBean jmx = ManagementFactory.getOperatingSystemMXBean();

        if (jmx != null) {
            int loadAverage = (int) jmx.getSystemLoadAverage();
            if (nThreads > 1 && loadAverage >= 1) {
                nThreads = Math.max(1, nThreads - loadAverage);
            }
        }
        return nThreads;
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    private SysInfo() {
    }

    public static OpenFilesInfo openFilesInfo() {
        OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
        if (os instanceof UnixOperatingSystemMXBean) {
            UnixOperatingSystemMXBean unixOperatingSystemMXBean = (UnixOperatingSystemMXBean) os;
            return new OpenFilesInfo(
                    unixOperatingSystemMXBean.getOpenFileDescriptorCount(),
                    unixOperatingSystemMXBean.getMaxFileDescriptorCount());
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        this.mbsc = mbsc;
    }
    public String getSummaryReport() throws RuntimeException {
        try {
            final StringBuilderNewLineAppender sb = new StringBuilderNewLineAppender(new StringBuilder());
            final OperatingSystemMXBean os = ManagementFactory.newPlatformMXBeanProxy(mbsc,
                    ManagementFactory.OPERATING_SYSTEM_MXBEAN_NAME, OperatingSystemMXBean.class);
            sb.append(getOSInfo(os));
            final RuntimeMXBean rt = ManagementFactory.newPlatformMXBeanProxy(mbsc,
                    ManagementFactory.RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);
            sb.append(getVMInfo(rt));
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        nodeMemory.setSwapTotal(metricValue);
      }
    }
    private DuccNodeMemory collect() {
      DuccNodeMemory nodeMemory = new DuccNodeMemory();
      OperatingSystemMXBean operatingSystemMXBean = ManagementFactory.getOperatingSystemMXBean();
      for (Method method : operatingSystemMXBean.getClass().getDeclaredMethods()) {
        method.setAccessible(true);
        if (method.getName().startsWith("get")
            && Modifier.isPublic(method.getModifiers())) {
                Long value;
            try {
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public class NodeCpuCollector implements Callable<NodeCpuInfo> {

  public NodeCpuInfo call() throws Exception {
    OperatingSystemMXBean osBean = ManagementFactory.getOperatingSystemMXBean();
    return new NodeCpuInfo(osBean.getAvailableProcessors());
  }
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        int maxNameLen;
        String name;
        Map<String, String> props = new HashMap<String, String>();

        RuntimeMXBean         runtime = ManagementFactory.getRuntimeMXBean();
        OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
        ThreadMXBean          threads = ManagementFactory.getThreadMXBean();
        MemoryMXBean          mem = ManagementFactory.getMemoryMXBean();
        ClassLoadingMXBean    cl = ManagementFactory.getClassLoadingMXBean();

        //
        // print ServiceMix informations
        //
        maxNameLen = 25;
        io.out.println("ServiceMix");
        printValue("ServiceMix home", maxNameLen, System.getProperty("servicemix.home"));
        printValue("ServiceMix base", maxNameLen, System.getProperty("servicemix.base"));
        printValue("ServiceMix version", maxNameLen, branding.getVersion());
        io.out.println();

        io.out.println("JVM");
        printValue("Java Virtual Machine", maxNameLen, runtime.getVmName() + " version " + runtime.getVmVersion());
        printValue("Vendor", maxNameLen, runtime.getVmVendor());
        printValue("Uptime", maxNameLen, printDuration(runtime.getUptime()));
        try {
            com.sun.management.OperatingSystemMXBean sunOs = (com.sun.management.OperatingSystemMXBean) os;
            printValue("Process CPU time", maxNameLen, printDuration(sunOs.getProcessCpuTime() / 1000000));
            printValue("Total compile time", maxNameLen, printDuration(ManagementFactory.getCompilationMXBean().getTotalCompilationTime()));
        } catch (Throwable t) {}

        io.out.println("Threads");
        printValue("Live threads", maxNameLen, Integer.toString(threads.getThreadCount()));
        printValue("Daemon threads", maxNameLen, Integer.toString(threads.getDaemonThreadCount()));
        printValue("Peak", maxNameLen, Integer.toString(threads.getPeakThreadCount()));
        printValue("Total started", maxNameLen, Long.toString(threads.getTotalStartedThreadCount()));

        io.out.println("Memory");
        printValue("Current heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getUsed()));
        printValue("Maximum heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getMax()));
        printValue("Committed heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getCommitted()));
        printValue("Pending objects", maxNameLen, Integer.toString(mem.getObjectPendingFinalizationCount()));
        for (GarbageCollectorMXBean gc : ManagementFactory.getGarbageCollectorMXBeans()) {
            String val = "Name = '" + gc.getName() + "', Collections = " + gc.getCollectionCount() + ", Time = " + printDuration(gc.getCollectionTime());
            printValue("Garbage collector", maxNameLen, val);
        }

        io.out.println("Classes");
        printValue("Current classes loaded", maxNameLen, printLong(cl.getLoadedClassCount()));
        printValue("Total classes loaded", maxNameLen, printLong(cl.getTotalLoadedClassCount()));
        printValue("Total classes unloaded", maxNameLen, printLong(cl.getUnloadedClassCount()));

        io.out.println("Operating system");
        printValue("Name", maxNameLen, os.getName() + " version " + os.getVersion());
        printValue("Architecture", maxNameLen, os.getArch());
        printValue("Processrors", maxNameLen, Integer.toString(os.getAvailableProcessors()));
        try {
            com.sun.management.OperatingSystemMXBean sunOs = (com.sun.management.OperatingSystemMXBean) os;
            printValue("Total physical memory", maxNameLen, printSizeInKb(sunOs.getTotalPhysicalMemorySize()));
            printValue("Free physical memory", maxNameLen, printSizeInKb(sunOs.getFreePhysicalMemorySize()));
            printValue("Committed virtual memory", maxNameLen, printSizeInKb(sunOs.getCommittedVirtualMemorySize()));
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