Package org.opennms.netmgt.vmmgr

Class Manager

  • All Implemented Interfaces:
    ManagerMBean
    public class Manager
extends java.lang.Object
implements ManagerMBean

    The Manager is reponsible for launching/starting all services in the VM that it is started for. The Manager operates in two modes, normal and server

    normal mode: In the normal mode, the Manager starts all services configured for its VM in the service-configuration.xml and starts listening for control events on the 'control-broadcast' JMS topic for stop control messages for itself

    server mode: In the server mode, the Manager starts up and listens on the 'control-broadcast' JMS topic for 'start' control messages for services in its VM and a stop control messge for itself. When a start for a service is received, it launches only that service and sends a successful 'running' or an 'error' response to the Controller

    Note: The Manager is NOT intelligent - if it receives a stop control event, it will exit - does not check to see if the services its started are all stopped

    Author:
    Brian Weaver, Sowmya Nataraj, OpenNMS.org

    • Constructor Summary

      Constructors 
      Constructor Description
      Manager()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void doSystemExit()
      Uncleanly shutdown OpenNMS.
      void doTestLoadLibraries()
      doTestLoadLibraries
      void dumpThreads()
      dumpThreads
      java.lang.Long getUptime()
      getUptime
      void init()
      Register shutdown hook to handle SIGTERM signal for the process.
      java.util.List<java.lang.String> status()
      status
      void stop()
      stop

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • Manager

        public Manager()

    • Method Detail

      • init

        public void init()
        Register shutdown hook to handle SIGTERM signal for the process.
        Specified by:
        init in interface ManagerMBean

      • status

        public java.util.List<java.lang.String> status()

        status

        Specified by:
        status in interface ManagerMBean
        Returns:
        a List object.

      • doSystemExit

        public void doSystemExit()
        Uncleanly shutdown OpenNMS. This method calls {@see java.lang.System.exit(int)}, which causes the JVM to exit immediately. This method is usually invoked via JMX from another process as the last stage of shutting down OpenNMS.
        Specified by:
        doSystemExit in interface ManagerMBean

      • getUptime

        public java.lang.Long getUptime()
        Description copied from interface: ManagerMBean

        getUptime

        Specified by:
        getUptime in interface ManagerMBean
        Returns:
        a Long expressing the time, in milliseconds, since the manager first started