Class CollectedInfo

java.lang.Object
org.apache.catalina.ha.backend.CollectedInfo
public class CollectedInfo extends Object
Listener to provide information to mod_heartbeat.c. Collects connector thread pool information via JMX to report ready and busy thread counts.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected MBeanServer
    mBeanServer
    The MBean server used to collect information.
    protected ObjectName
    objName
    The object name of the thread pool MBean.

  • Constructor Summary

    Constructors
    Constructor
    Description
    CollectedInfo(String host, int port)
    Creates a new CollectedInfo instance and initializes it with the specified host and port.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    init(String host, int port)
    Initializes the collected info by looking up the thread pool MBean for the given host and port.
    void
    refresh()
    Refreshes the ready and busy thread counts from the thread pool MBean.

    Methods inherited from class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • mBeanServer

      protected MBeanServer mBeanServer
      The MBean server used to collect information.

    • objName

      protected ObjectName objName
      The object name of the thread pool MBean.

  • Constructor Details

    • CollectedInfo

      public CollectedInfo(String host, int port) throws Exception
      Creates a new CollectedInfo instance and initializes it with the specified host and port.
      Parameters:
      host - the host
      port - the port
      Throws:
      Exception - if initialization fails

  • Method Details

    • init

      public void init(String host, int port) throws Exception
      Initializes the collected info by looking up the thread pool MBean for the given host and port.
      Parameters:
      host - the host (may be null to match any host)
      port - the port (0 to match any port)
      Throws:
      Exception - if no matching connector is found

    • refresh

      public void refresh() throws Exception
      Refreshes the ready and busy thread counts from the thread pool MBean.
      Throws:
      Exception - if not initialized or MBean access fails