Package java.lang.management

Examples of java.lang.management.OperatingSystemMXBean

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    public Object execute(CommandContext context) throws Exception {
        int maxNameLen;

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

        //
        // 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 Kernel version", maxNameLen, branding.getParent().getVersion());

        if (branding.getApplicationName() != null && branding.getApplicationVersion() != null) {
            printValue(branding.getApplicationName() + " version", maxNameLen, branding.getApplicationVersion());
        }
        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 {
            printValue("Process CPU time", maxNameLen, printDuration(getSunOsValueAsLong(os, "getProcessCpuTime") / 1000000));
        } catch (Throwable t) {}
        printValue("Total compile time", maxNameLen, printDuration(ManagementFactory.getCompilationMXBean().getTotalCompilationTime()));

        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("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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    * @param mof - the ManagedObjectFactory to use
    * @return
    */
   public static ManagedObject getOperatingSystemMXBean(ManagedObjectFactory mof)
   {
      OperatingSystemMXBean mbean = ManagementFactory.getOperatingSystemMXBean();
      ManagedObject mo = getMO(mbean, OperatingSystemMXBeanMO.class, mof);
      return mo;
   }
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        /* some useful information - log the number of fds used before
         * and after a test is run. Helps to verify we are freeing resources
         * correctly. Unfortunately this only works on unix systems (the
         * only place sun has implemented as part of the mgmt bean api.
         */
        OperatingSystemMXBean osMbean =
            ManagementFactory.getOperatingSystemMXBean();
        if (osMbean != null && osMbean instanceof UnixOperatingSystemMXBean) {
            UnixOperatingSystemMXBean unixos =
                (UnixOperatingSystemMXBean)osMbean;
            initialFdCount = unixos.getOpenFileDescriptorCount();
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     *
     * @throws Throwable
     */
    @Test
    public void testClientCleanup() throws Throwable {
        OperatingSystemMXBean osMbean =
            ManagementFactory.getOperatingSystemMXBean();
        if (osMbean == null
                || !(osMbean instanceof UnixOperatingSystemMXBean))
        {
            LOG.warn("skipping testClientCleanup, only available on Unix");
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        /* some useful information - log the number of fds used before
         * and after a test is run. Helps to verify we are freeing resources
         * correctly. Unfortunately this only works on unix systems (the
         * only place sun has implemented as part of the mgmt bean api.
         */
        OperatingSystemMXBean osMbean =
            ManagementFactory.getOperatingSystemMXBean();
        if (osMbean != null && osMbean instanceof UnixOperatingSystemMXBean) {
            UnixOperatingSystemMXBean unixos =
                (UnixOperatingSystemMXBean)osMbean;
            long fdCount = unixos.getOpenFileDescriptorCount();
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            print("watch_count", zkdb.getDataTree().getWatchCount());
            print("ephemerals_count", zkdb.getDataTree().getEphemeralsCount());
            print("approximate_data_size", zkdb.getDataTree().approximateDataSize());

            OperatingSystemMXBean osMbean = ManagementFactory.getOperatingSystemMXBean();
            if(osMbean != null && osMbean instanceof UnixOperatingSystemMXBean) {
                UnixOperatingSystemMXBean unixos = (UnixOperatingSystemMXBean)osMbean;

                print("open_file_descriptor_count", unixos.getOpenFileDescriptorCount());
                print("max_file_descriptor_count", unixos.getMaxFileDescriptorCount());
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            print("watch_count", zkdb.getDataTree().getWatchCount());
            print("ephemerals_count", zkdb.getDataTree().getEphemeralsCount());
            print("approximate_data_size", zkdb.getDataTree().approximateDataSize());

            OperatingSystemMXBean osMbean = ManagementFactory.getOperatingSystemMXBean();
            if(osMbean != null && osMbean instanceof UnixOperatingSystemMXBean) {
                UnixOperatingSystemMXBean unixos = (UnixOperatingSystemMXBean)osMbean;

                print("open_file_descriptor_count", unixos.getOpenFileDescriptorCount());
                print("max_file_descriptor_count", unixos.getMaxFileDescriptorCount());
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  }
  private void logPlatformInfo(String serviceName) {
    if (ManagementFactory.getPlatformMBeanServer() != null) {
      RuntimeMXBean bean = ManagementFactory.getRuntimeMXBean();
      // MemoryMXBean memoryBean = ManagementFactory.getMemoryMXBean();
      OperatingSystemMXBean osBean = ManagementFactory.getOperatingSystemMXBean();
      // bean.getName() should return a string that looks like this: PID@HOSTNAME
      // where PID is the process id and the HOSTNAME is the name of the machine
      processPid = bean.getName();
      if (processPid != null && processPid.trim().length() > 0) {
        int endPos = processPid.indexOf("@"); // find the position where the PID ends
        if (endPos > -1) {
          processPid = processPid.substring(0, endPos);
        }
      }
   
      String loadedJars = getLoadedJars(); 
      DateFormat df = new SimpleDateFormat("dd MMM yyyy HH:mm:ss ");

      StringBuffer platformInfo = new StringBuffer();
      platformInfo.append("\n+------------------------------------------------------------------");
      platformInfo.append("\n                   Starting UIMA AS Service - PID: " + processPid);
      platformInfo.append("\n+------------------------------------------------------------------");
      platformInfo.append("\n+ Service Name:" + serviceName);
      platformInfo.append("\n+ Service Queue Name:" + endpointName);
      platformInfo.append("\n+ Service Start Time:" + df.format(bean.getStartTime()));
      platformInfo.append("\n+ UIMA AS Version:" + uimaAsVersion.getVersionString());
      platformInfo.append("\n+ UIMA Core Version:" + UIMAFramework.getVersionString());
      if ( System.getenv(JMS_PROVIDER_HOME) != null) {
        platformInfo.append("\n+ JMS Provider Home:" + System.getenv(JMS_PROVIDER_HOME));
      }
      platformInfo.append("\n+ OS Name:" + osBean.getName());
      platformInfo.append("\n+ OS Version:" + osBean.getVersion());
      platformInfo.append("\n+ OS Architecture:" + osBean.getArch());
      platformInfo.append("\n+ OS CPU Count:" + osBean.getAvailableProcessors());
      platformInfo.append("\n+ JVM Vendor:" + bean.getVmVendor());
      platformInfo.append("\n+ JVM Name:" + bean.getVmName());
      platformInfo.append("\n+ JVM Version:" + bean.getVmVersion());
      platformInfo.append("\n+ JVM Input Args:" + bean.getInputArguments());
      platformInfo.append("\n+ JVM Classpath:" + bean.getClassPath());
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  @Override
  public ReportEvent getMetrics() {
    ReportEvent rpt = new ReportEvent(getName());

    // os
    OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
    rpt.setStringMetric("os.arch", os.getArch());
    rpt.setStringMetric("os.name", os.getName());
    rpt.setStringMetric("os.version", os.getVersion());
    rpt.setLongMetric("os.cpus", os.getAvailableProcessors());
    // load in last minute
    rpt.setDoubleMetric("os.load", os.getSystemLoadAverage());
    rpt.setStringMetric("hostname", NetUtils.localhost());

    // os (not in java)
    // iotop
    // swap mem
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public class SystemInfoHandlerTest extends TestCase {

  public void testMagickGetter() {

    OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();

    // make one directly
    SimpleOrderedMap<Object> info = new SimpleOrderedMap<Object>();
    info.add( "name", os.getName() );
    info.add( "version", os.getVersion() );
    info.add( "arch", os.getArch() );

    // make another using addGetterIfAvaliable
    SimpleOrderedMap<Object> info2 = new SimpleOrderedMap<Object>();
    SystemInfoHandler.addGetterIfAvaliable( os, "name", info2 );
    SystemInfoHandler.addGetterIfAvaliable( os, "version", info2 );
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