Package org.opennms.netmgt.vmmgr

Class Controller

java.lang.Object

org.opennms.netmgt.vmmgr.Controller

public class Controller
extends Object

This Controller class is used to interact with a Manager MBean running inside an OpenNMS JMX service. This class can invoke operations on that MBean and request status information from it. It is used to execute shell operations to control the lifecycle of the OpenNMS process from init.d or systemd scripts.

Author:

Seth, Brian Weaver, Sowmya Nataraj

Field Summary

Fields

Modifier and Type	Field	Description
static String	CONNECTOR_ADDRESS	The system property used to determine the JMX management agent URI for the JVM that we are attaching to.
static String	DEFAULT_JMX_RMI_URL

Constructor Summary

Constructors

Constructor	Description
Controller()

Method Summary

Modifier and Type	Method	Description
int	check()	check
Object	doInvokeOperation(String operation)
int	dumpThreads()	dumpThreads
int	exit()	exit
String	getJmxUrl()	This method uses the Java Attach API to connect to a running OpenNMS JVM and fetch the dynamically assigned local JMX agent URL.
String	getPid()
int	getRmiHandshakeTimeout()
int	invokeOperation(String operation)
boolean	isVerbose()	isVerbose
static void	main(String[] argv)	main
void	setJmxRmiUrl(String jmxUrl)	setJmxRmiUrl
void	setPid(String pid)
void	setRmiHandshakeTimeout(int httpRequestReadTimeout)
void	setVerbose(boolean verbose)	setVerbose
void	start()	Start the OpenNMS daemon.
int	status()	status
int	stop()	stop

Methods inherited from class java.lang.Object

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

Field Detail

CONNECTOR_ADDRESS

public static final String CONNECTOR_ADDRESS

The system property used to determine the JMX management agent URI for the JVM that we are attaching to. This is used for getting status information from a running OpenNMS instance.

See Also:

Constant Field Values

DEFAULT_JMX_RMI_URL

public static final String DEFAULT_JMX_RMI_URL

See Also:

Constant Field Values

Constructor Detail

Controller

public Controller()

Method Detail

main

public static void main(String[] argv)

main

Parameters:

argv - an array of String objects.

start

public void start()

Start the OpenNMS daemon. Never returns.

stop

public int stop()

stop

Returns:

a int.

status

public int status()

status

Returns:

a int.

check

public int check()

check

Returns:

a int.

dumpThreads

public int dumpThreads()

dumpThreads

Returns:

a int.

exit

public int exit()

exit

Returns:

a int.

invokeOperation

public int invokeOperation(String operation)

doInvokeOperation

public Object doInvokeOperation(String operation)
                         throws MalformedURLException,
                                IOException,
                                InstanceNotFoundException,
                                MalformedObjectNameException,
                                MBeanException,
                                ReflectionException,
                                NullPointerException

Throws:

MalformedURLException

IOException

InstanceNotFoundException

MalformedObjectNameException

MBeanException

ReflectionException

NullPointerException

isVerbose

public boolean isVerbose()

isVerbose

Returns:

a boolean.

setVerbose

public void setVerbose(boolean verbose)

setVerbose

Parameters:

verbose - a boolean.

getJmxUrl

public String getJmxUrl()

This method uses the Java Attach API to connect to a running OpenNMS JVM and fetch the dynamically assigned local JMX agent URL.

Returns:

a String object.

setJmxRmiUrl

public void setJmxRmiUrl(String jmxUrl)

setJmxRmiUrl

Parameters:

jmxUrl - a String object.

getPid

public String getPid()

setPid

public void setPid(String pid)

getRmiHandshakeTimeout

public int getRmiHandshakeTimeout()

setRmiHandshakeTimeout

public void setRmiHandshakeTimeout(int httpRequestReadTimeout)