com.sun.enterprise.web.connector.extension

Class GrizzlyConfig

java.lang.Object

com.sun.enterprise.web.connector.extension.GrizzlyConfig

All Implemented Interfaces:

MonitoringLevelListener

public class GrizzlyConfig
extends Object
implements MonitoringLevelListener

This class track monitoring or Grizzly, using JMX to invoke Grizzly main classes.

Author:

Jeanfrancois Arcand

Constructor Summary

Constructors

Constructor and Description
GrizzlyConfig(WebContainer webContainer, String domain, int port) Creates the monitoring helper.

Method Summary

Modifier and Type	Method and Description
void	changeLevel(MonitoringLevel from, MonitoringLevel to, MonitoredObjectType type) Method to convey the change in monitoring level.
void	changeLevel(MonitoringLevel from, MonitoringLevel to, javax.management.j2ee.statistics.Stats handback) Method to convey the change in monitoring level.
void	destroy()
static ArrayList<GrizzlyConfig>	getGrizzlyConfigInstances() Return the list of all instance of this class.
int	getPort() Return the port this configuration belongs.
void	initConfig()
protected void	invokeGrizzly(String methodToInvoke)
protected void	invokeGrizzly(String methodToInvoke, Object[] objects, String[] signature)
void	registerMonitoringLevelEvents()
void	setEnableCallFlow(boolean enableCallFlow) Enable CallFlow gathering mechanism.
void	setLevel(MonitoringLevel level) Sets the monitoring level to a new level.

Methods inherited from class java.lang.Object

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

Constructor Detail

GrizzlyConfig

public GrizzlyConfig(WebContainer webContainer,
                     String domain,
                     int port)

Creates the monitoring helper.

Method Detail

destroy

public void destroy()

initConfig

public void initConfig()

registerMonitoringLevelEvents

public void registerMonitoringLevelEvents()

setLevel

public void setLevel(MonitoringLevel level)

Description copied from interface: MonitoringLevelListener

Sets the monitoring level to a new level. Values are defined by MonitoringLevel.OFF, MonitoringLevel.LOW, and MonitoringLevel.High

Specified by:

setLevel in interface MonitoringLevelListener

Parameters:

level - corresponding to MonitoringLevel OFF, LOW or HIGH

changeLevel

public void changeLevel(MonitoringLevel from,
                        MonitoringLevel to,
                        MonitoredObjectType type)

Description copied from interface: MonitoringLevelListener

Method to convey the change in monitoring level. The configuration of monitoring pertains to certain components like ejb-container, web-container, orb, transaction-service, connection-pools, thread-pools etc. The third parameter loosely corresponds to the configuration in domain.xml as follows:

• connector-connection-pool : MonitoredObjectType#CONNECTOR_CONN_POOL
• ejb-container : MonitoredObjectType#EJB
• http-service, http-listeners etc. : MonitoredObjectType#HTTP_SERVICE
• jdbc-connection-pool : MonitoredObjectType#JDBC_CONN_POOL
• orb : MonitoredObjectType#ORB
• thread-pool : MonitoredObjectType#THREAD_POOL
• transaction-service : MonitoredObjectType#TRANSACTION_SERVICE
• web-container : MonitoredObjectType#WEB_COMPONENT

The core components are expected to follow the above. When the level changes through administrative interfaces, the notification is sent to the registered listeners for corresponding types and thus the dynamic reconfiguration is done.

Specified by:

changeLevel in interface MonitoringLevelListener

Parameters:

from - the MonitoringLevel before the change

to - the MonitoringLevel after the change

type - the MonitoredObjectType that had the level changed

changeLevel

public void changeLevel(MonitoringLevel from,
                        MonitoringLevel to,
                        javax.management.j2ee.statistics.Stats handback)

Description copied from interface: MonitoringLevelListener

Method to convey the change in monitoring level. It is a usual practice that various components may have single instance of listener to listen to the changes in monitoring-level for various registered Stats objects. This method gives a context for such components to be returned when it is called.

Specified by:

changeLevel in interface MonitoringLevelListener

Parameters:

from - the MonitoringLevel before the change

to - the MonitoringLevel after the change

handback - the Stats object that was passed to the registry during registration. It is guaranteed that it will be unchanged by monitoring framework.

invokeGrizzly

protected final void invokeGrizzly(String methodToInvoke)

invokeGrizzly

protected final void invokeGrizzly(String methodToInvoke,
                                   Object[] objects,
                                   String[] signature)

setEnableCallFlow

public final void setEnableCallFlow(boolean enableCallFlow)

Enable CallFlow gathering mechanism.

getGrizzlyConfigInstances

public static ArrayList<GrizzlyConfig> getGrizzlyConfigInstances()

Return the list of all instance of this class.

getPort

public int getPort()

Return the port this configuration belongs.