import org.apache.cassandra.metrics.ThreadPoolMetrics; //导入依赖的package包/类
public JMXEnabledThreadPoolExecutor(int corePoolSize,
                                    int maxPoolSize,
                                    long keepAliveTime,
                                    TimeUnit unit,
                                    BlockingQueue<Runnable> workQueue,
                                    NamedThreadFactory threadFactory,
                                    String jmxPath)
{
    super(corePoolSize, maxPoolSize, keepAliveTime, unit, workQueue, threadFactory);
    super.prestartAllCoreThreads();
    metrics = new ThreadPoolMetrics(this, jmxPath, threadFactory.id);

    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    mbeanName = "org.apache.cassandra." + jmxPath + ":type=" + threadFactory.id;

    try
    {
        mbs.registerMBean(this, new ObjectName(mbeanName));
    }
    catch (Exception e)
    {
        throw new RuntimeException(e);
    }
}
 

import org.apache.cassandra.metrics.ThreadPoolMetrics; //导入依赖的package包/类
public JMXEnabledScheduledThreadPoolExecutor(int corePoolSize, NamedThreadFactory threadFactory, String jmxPath)
{
    super(corePoolSize, threadFactory);

    metrics = new ThreadPoolMetrics(this, jmxPath, threadFactory.id);

    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    mbeanName = "org.apache.cassandra." + jmxPath + ":type=" + threadFactory.id;

    try
    {
        mbs.registerMBean(this, new ObjectName(mbeanName));
    }
    catch (Exception e)
    {
        throw new RuntimeException(e);
    }
}
 

import org.apache.cassandra.metrics.ThreadPoolMetrics; //导入依赖的package包/类
public JMXEnabledThreadPoolExecutor(int corePoolSize,
                                    int maxPoolSize,
                                    long keepAliveTime,
                                    TimeUnit unit,
                                    BlockingQueue<Runnable> workQueue,
                                    NamedThreadFactory threadFactory,
                                    String jmxPath)
{
    super(corePoolSize, maxPoolSize, keepAliveTime, unit, workQueue, threadFactory);
    super.prestartAllCoreThreads();

    metrics = new ThreadPoolMetrics(this, jmxPath, threadFactory.id);

    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    mbeanName = "org.apache.cassandra." + jmxPath + ":type=" + threadFactory.id;

    try
    {
        mbs.registerMBean(this, new ObjectName(mbeanName));
    }
    catch (Exception e)
    {
        throw new RuntimeException(e);
    }
}
 

import org.apache.cassandra.metrics.ThreadPoolMetrics; //导入依赖的package包/类
public RequestThreadPoolExecutor()
{
    super(DatabaseDescriptor.getNativeTransportMaxThreads(),
          0, // We don't use the per-channel limit, only the global one
          MAX_QUEUED_REQUESTS,
          CORE_THREAD_TIMEOUT_SEC, TimeUnit.SECONDS,
          sizeEstimator(),
          new NamedThreadFactory(THREAD_FACTORY_ID));
    metrics = new ThreadPoolMetrics(this, "transport", THREAD_FACTORY_ID);
}
 

import org.apache.cassandra.metrics.ThreadPoolMetrics; //导入依赖的package包/类
public Object getThreadPoolMetric(String pathName, String poolName, String metricName)
{
    return ThreadPoolMetrics.getJmxMetric(mbeanServerConn, pathName, poolName, metricName);
}
 

import org.apache.cassandra.metrics.ThreadPoolMetrics; //导入依赖的package包/类
/**
 * Retrieve threadpool paths and names for threadpools with metrics.
 * @return Multimap from path (internal, request, etc.) to name
 */
public Multimap<String, String> getThreadPools()
{
    return ThreadPoolMetrics.getJmxThreadPools(mbeanServerConn);
}