org.opennms.netmgt.vmmgr

Class Manager

java.lang.Object

org.opennms.netmgt.vmmgr.Manager

All Implemented Interfaces:

ManagerMBean

public class Manager
extends 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 and Description
Manager()

Method Summary

Modifier and Type	Method and Description
void	doSystemExit() Uncleanly shutdown OpenNMS.
void	doTestLoadLibraries() doTestLoadLibraries
void	dumpThreads() dumpThreads
Long	getUptime() getUptime
void	init() Register shutdown hook to handle SIGTERM signal for the process.
List<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

stop

public void stop()

stop

Specified by:

stop in interface ManagerMBean

status

public List<String> status()

status

Specified by:

status in interface ManagerMBean

Returns:

a List object.

doSystemExit

public void doSystemExit()

Uncleanly shutdown OpenNMS. This method calls 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

dumpThreads

public void dumpThreads()

Description copied from interface: ManagerMBean

dumpThreads

Specified by:

dumpThreads in interface ManagerMBean

doTestLoadLibraries

public void doTestLoadLibraries()

doTestLoadLibraries

Specified by:

doTestLoadLibraries in interface ManagerMBean

getUptime

public 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