Example usage for java.lang.management ThreadMXBean getPeakThreadCount

Introduction

In this page you can find the example usage for java.lang.management ThreadMXBean getPeakThreadCount.

Prototype

public int getPeakThreadCount();

Source Link

Document

Returns the peak live thread count since the Java virtual machine started or peak was reset.

Usage

From source file:net.bull.javamelody.internal.model.JavaInformations.java

public JavaInformations(ServletContext servletContext, boolean includeDetails) {
    // CHECKSTYLE:ON
    super();//from  ww  w.j  av  a  2 s. co  m
    memoryInformations = new MemoryInformations();
    tomcatInformationsList = TomcatInformations.buildTomcatInformationsList();
    sessionCount = SessionListener.getSessionCount();
    sessionAgeSum = SessionListener.getSessionAgeSum();
    activeThreadCount = JdbcWrapper.getActiveThreadCount();
    usedConnectionCount = JdbcWrapper.getUsedConnectionCount();
    activeConnectionCount = JdbcWrapper.getActiveConnectionCount();
    maxConnectionCount = JdbcWrapper.getMaxConnectionCount();
    transactionCount = JdbcWrapper.getTransactionCount();
    systemLoadAverage = buildSystemLoadAverage();
    systemCpuLoad = buildSystemCpuLoad();
    processCpuTimeMillis = buildProcessCpuTimeMillis();
    unixOpenFileDescriptorCount = buildOpenFileDescriptorCount();
    unixMaxFileDescriptorCount = buildMaxFileDescriptorCount();
    host = Parameters.getHostName() + '@' + Parameters.getHostAddress();
    os = buildOS();
    availableProcessors = Runtime.getRuntime().availableProcessors();
    javaVersion = System.getProperty("java.runtime.name") + ", " + System.getProperty("java.runtime.version");
    jvmVersion = System.getProperty("java.vm.name") + ", " + System.getProperty("java.vm.version") + ", "
            + System.getProperty("java.vm.info");
    if (servletContext == null) {
        serverInfo = null;
        contextPath = null;
        contextDisplayName = null;
        webappVersion = null;
    } else {
        serverInfo = servletContext.getServerInfo();
        contextPath = Parameters.getContextPath(servletContext);
        contextDisplayName = servletContext.getServletContextName();
        webappVersion = MavenArtifact.getWebappVersion();
    }
    startDate = START_DATE;
    jvmArguments = buildJvmArguments();
    final ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    threadCount = threadBean.getThreadCount();
    peakThreadCount = threadBean.getPeakThreadCount();
    totalStartedThreadCount = threadBean.getTotalStartedThreadCount();
    freeDiskSpaceInTemp = Parameters.TEMPORARY_DIRECTORY.getFreeSpace();
    springBeanExists = SPRING_AVAILABLE && SpringContext.getSingleton() != null;

    if (includeDetails) {
        dataBaseVersion = buildDataBaseVersion();
        dataSourceDetails = buildDataSourceDetails();
        threadInformationsList = buildThreadInformationsList();
        cacheInformationsList = CacheInformations.buildCacheInformationsList();
        jobInformationsList = JobInformations.buildJobInformationsList();
        pid = PID.getPID();
    } else {
        dataBaseVersion = null;
        dataSourceDetails = null;
        threadInformationsList = null;
        cacheInformationsList = null;
        jobInformationsList = null;
        pid = null;
    }
}

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From source file:com.eurelis.opencms.admin.systeminformation.CmsCPUThreadsClassesOverviewDialog.java

/**
 * Initializes the infos object.<p>
 */// ww  w. j a  v  a2 s  .  c o m
protected void initInfosObject() {

    com.sun.management.OperatingSystemMXBean sunOsBean = (com.sun.management.OperatingSystemMXBean) ManagementFactory
            .getOperatingSystemMXBean();
    java.lang.management.OperatingSystemMXBean osBean = ManagementFactory.getOperatingSystemMXBean();
    java.lang.management.ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    java.lang.management.RuntimeMXBean runtimeBean = ManagementFactory.getRuntimeMXBean();
    java.lang.management.ClassLoadingMXBean classesBean = ManagementFactory.getClassLoadingMXBean();

    setCpuCount("" + osBean.getAvailableProcessors());
    double usage = com.eurelis.opencms.admin.systeminformation.CmsCPUThreadsClassesOverviewDialog
            .getCPUUsage(getSession());
    usage = Math.round(usage * 100) / 100;
    setCpuUsage("" + 100 * usage + "%");

    setLoadedClassesCount("" + classesBean.getLoadedClassCount());
    setUnloadedClassesCount("" + classesBean.getUnloadedClassCount());
    setTotalLoadedClassesCount("" + classesBean.getTotalLoadedClassCount());

    setThreadsCount("" + threadBean.getThreadCount());
    setThreadsStartedCount("" + threadBean.getTotalStartedThreadCount());
    setThreadsPeakCount("" + threadBean.getPeakThreadCount());
    setThreadsDaemonCount("" + threadBean.getDaemonThreadCount());

    Object o;
    if (CmsStringUtil.isEmpty(getParamAction())) {
        o = new CmsAdminSettings(getSession());
    } else {
        // this is not the initial call, get the job object from session
        o = getDialogObject();
    }
    if (!(o instanceof CmsAdminSettings)) {
        // create a new history settings handler object
        m_adminSettings = new CmsAdminSettings(getSession());
    } else {
        // reuse html import handler object stored in session
        m_adminSettings = (CmsAdminSettings) o;
    }

    setParamCloseLink(getJsp().link(
            "/system/workplace/views/admin/admin-main.jsp?path=/eurelis_system_information/cpu_and_threads.jsp"));

}

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