public Class LocalMonitoredVm

Concrete implementation of the AbstractMonitoredVm class for the local: protocol for the HotSpot PerfData monitoring implementation.

This class provides the ability to attach to the instrumentation buffer of a live target Java Virtual Machine through a HotSpot specific attach mechanism.

Author

Brian Doherty

Since

1.5

Nested and Inner Type Summary

Modifier and Type	Class and Description
private class	LocalMonitoredVm.NotifierTask Class to notify listeners of Monitor related events for the target JVM.

Modifier and Type	Field and Description
private ArrayList<VmListener>	listeners List of registered listeners.
private LocalMonitoredVm.NotifierTask	task Task performing listener notification.

Modifier and Type

Field and Description

private ArrayList<VmListener>

listeners

List of registered listeners.

private LocalMonitoredVm.NotifierTask

task

Task performing listener notification.

Constructor Summary

Access	Constructor and Description
public	LocalMonitoredVm(VmIdentifier the vm identifier specifying the target JVM vmid, int the sampling interval interval) Create a LocalMonitoredVm instance.

Modifier and Type	Method and Description
public void	addVmListener(VmListener l) Implements abstract sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.addVmListener. Implements sun.jvmstat.monitor.MonitoredVm.addVmListener. Add a VmListener.
pack-priv static <T> T	cast(Object x)
public void	detach() Overrides sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.detach. Implements sun.jvmstat.monitor.MonitoredVm.detach. Detach from target Java Virtual Machine.
pack-priv void	fireMonitorStatusChangedEvents(List<Monitor> List of Monitor objects inserted. inserted, List<Monitor> List of Monitor objects removed. removed) Fire MonitoredVmStructureChanged events.
pack-priv void	fireMonitorsUpdatedEvents() Fire MonitoredUpdated events.
public void	removeVmListener(VmListener l) Implements abstract sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.removeVmListener. Implements sun.jvmstat.monitor.MonitoredVm.removeVmListener. Remove a VmListener.
public void	setInterval(int newInterval) Overrides sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.setInterval. Implements sun.jvmstat.monitor.MonitoredVm.setInterval. Set the polling interval to `interval` milliseconds.

Modifier and Type

Method and Description

public void

addVmListener(VmListener l)

Implements abstract sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.addVmListener.

Implements sun.jvmstat.monitor.MonitoredVm.addVmListener.

Add a VmListener.

pack-priv static <T> T

cast(Object x)

public void

detach()

Overrides sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.detach.

Implements sun.jvmstat.monitor.MonitoredVm.detach.

Detach from target Java Virtual Machine.

pack-priv void

fireMonitorStatusChangedEvents(List<Monitor>

List of Monitor objects inserted.

inserted, List<Monitor>

List of Monitor objects removed.

removed)

Fire MonitoredVmStructureChanged events.

pack-priv void

fireMonitorsUpdatedEvents()

Fire MonitoredUpdated events.

public void

removeVmListener(VmListener l)

Implements abstract sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.removeVmListener.

Implements sun.jvmstat.monitor.MonitoredVm.removeVmListener.

Remove a VmListener.

public void

setInterval(int newInterval)

Overrides sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.setInterval.

Implements sun.jvmstat.monitor.MonitoredVm.setInterval.

Set the polling interval to interval milliseconds.

Field Detail

listeners	back to summary
private ArrayList<VmListener> listeners List of registered listeners.

task	back to summary
private LocalMonitoredVm.NotifierTask task Task performing listener notification.

Constructor Detail

LocalMonitoredVm	back to summary
public LocalMonitoredVm(VmIdentifier vmid, int interval) throws MonitorException Create a LocalMonitoredVm instance. Parameters vmid:VmIdentifier the vm identifier specifying the target JVM interval:int the sampling interval

LocalMonitoredVm

back to summary

public LocalMonitoredVm(VmIdentifier vmid, int interval) throws MonitorException

Create a LocalMonitoredVm instance.

Parameters

vmid:VmIdentifier: the vm identifier specifying the target JVM
interval:int: the sampling interval

Method Detail

addVmListener	back to summary
public void addVmListener(VmListener l) Implements abstract sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.addVmListener. Implements sun.jvmstat.monitor.MonitoredVm.addVmListener. Doc from sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.addVmListener. Add a VmListener. The given listener is added to the list of VmListener objects to be notified of MonitoredVm related events..

addVmListener

back to summary

public void addVmListener(VmListener l)

Implements abstract sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.addVmListener.

Implements sun.jvmstat.monitor.MonitoredVm.addVmListener.

Doc from sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.addVmListener.

Add a VmListener. The given listener is added to the list of VmListener objects to be notified of MonitoredVm related events..

cast	back to summary
pack-priv static <T> T cast(Object x) Annotations @SuppressWarnings:unchecked

detach	back to summary
public void detach() Overrides sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.detach. Implements sun.jvmstat.monitor.MonitoredVm.detach. Doc from sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.detach. Detach from target Java Virtual Machine. After calling this method, updates of the instrumentation data values may be halted. All event notifications are halted. Further interactions with this object should be avoided..

detach

back to summary

public void detach()

Overrides sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.detach.

Implements sun.jvmstat.monitor.MonitoredVm.detach.

Doc from sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.detach.

Detach from target Java Virtual Machine. After calling this method, updates of the instrumentation data values may be halted. All event notifications are halted. Further interactions with this object should be avoided..

fireMonitorStatusChangedEvents	back to summary
pack-priv void fireMonitorStatusChangedEvents(List<Monitor> inserted, List<Monitor> removed) Fire MonitoredVmStructureChanged events. Parameters inserted:List<Monitor> List of Monitor objects inserted. removed:List<Monitor> List of Monitor objects removed. Annotations @SuppressWarnings:unchecked

fireMonitorStatusChangedEvents

back to summary

pack-priv void fireMonitorStatusChangedEvents(List<Monitor> inserted, List<Monitor> removed)

Fire MonitoredVmStructureChanged events.

Parameters

inserted:List<Monitor>: List of Monitor objects inserted.
removed:List<Monitor>: List of Monitor objects removed.

Annotations

@SuppressWarnings:unchecked

fireMonitorsUpdatedEvents	back to summary
pack-priv void fireMonitorsUpdatedEvents() Fire MonitoredUpdated events.

removeVmListener	back to summary
public void removeVmListener(VmListener l) Implements abstract sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.removeVmListener. Implements sun.jvmstat.monitor.MonitoredVm.removeVmListener. Doc from sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.removeVmListener. Remove a VmListener. The given listener is removed from the list of VmListener objects to be notified of MonitoredVm related events..

removeVmListener

back to summary

public void removeVmListener(VmListener l)

Implements abstract sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.removeVmListener.

Implements sun.jvmstat.monitor.MonitoredVm.removeVmListener.

Doc from sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.removeVmListener.

Remove a VmListener. The given listener is removed from the list of VmListener objects to be notified of MonitoredVm related events..

setInterval back to summary

setInterval	back to summary
public void setInterval(int newInterval) Overrides sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.setInterval. Implements sun.jvmstat.monitor.MonitoredVm.setInterval. Doc from sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.setInterval. Set the polling interval to `interval` milliseconds. Polling based monitoring implementations need to refresh the instrumentation data on a periodic basis. This interface allows the interval to override the implementation specific default interval..

public void setInterval(int newInterval)

Overrides sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.setInterval.

Implements sun.jvmstat.monitor.MonitoredVm.setInterval.

Doc from sun.jvmstat.perfdata.monitor.AbstractMonitoredVm.setInterval.

Set the polling interval to interval milliseconds. Polling based monitoring implementations need to refresh the instrumentation data on a periodic basis. This interface allows the interval to override the implementation specific default interval..

sun.jvmstat.perfdata.monitor.protocol.local back to summary

private Class LocalMonitoredVm.NotifierTask

Class Inheritance

extends CountedTimerTask

java.lang.Object
java.util.TimerTask
sun.jvmstat.perfdata.monitor.CountedTimerTask
sun.jvmstat.perfdata.monitor.protocol.local.LocalMonitoredVm.NotifierTask

Class to notify listeners of Monitor related events for the target JVM.

Constructor Summary

Access	Constructor and Description
private	NotifierTask()

Method Summary

Modifier and Type	Method and Description
public void	run() Overrides sun.jvmstat.perfdata.monitor.CountedTimerTask.run. Implements java.lang.Runnable.run. The action to be performed by this timer task.

Inherited from sun.jvmstat.perfdata.monitor.CountedTimerTask:: executionCount

Constructor Detail

NotifierTask	back to summary
private NotifierTask()

Method Detail

run	back to summary
public void run() Overrides sun.jvmstat.perfdata.monitor.CountedTimerTask.run. Implements java.lang.Runnable.run. Doc from java.util.TimerTask.run. The action to be performed by this timer task.

run

back to summary

public void run()

Overrides sun.jvmstat.perfdata.monitor.CountedTimerTask.run.

Implements java.lang.Runnable.run.

Doc from java.util.TimerTask.run.

The action to be performed by this timer task.