sun.jvmstat.perfdata.monitor.protocol.rmi

Class MonitoredHostProvider

java.lang.Object

sun.jvmstat.monitor.MonitoredHost

sun.jvmstat.perfdata.monitor.protocol.rmi.MonitoredHostProvider

public class MonitoredHostProvider
extends MonitoredHost

Concrete implementation of the MonitoredHost interface for the rmi protocol of the HotSpot PerfData monitoring implementation.

Since:

1.5

Author:

Brian Doherty

Field Summary

Fields inherited from class sun.jvmstat.monitor.MonitoredHost

hostId, interval, lastException

Constructor Summary

Constructors

Constructor and Description
MonitoredHostProvider(HostIdentifier hostId) Create a MonitoredHostProvider instance using the given HostIdentifier.

Method Summary

Modifier and Type	Method and Description
Set<Integer>	activeVms() Return the current set of active Java Virtual Machines for this MonitoredHost.
void	addHostListener(HostListener listener) Add a HostListener.
void	detach(MonitoredVm vm) Detach from the indicated MonitoredVm.
MonitoredVm	getMonitoredVm(VmIdentifier vmid) Get the MonitoredVm for the given Java Virtual Machine.
MonitoredVm	getMonitoredVm(VmIdentifier vmid, int interval) Get the MonitoredVm for the given Java Virtual Machine.
void	removeHostListener(HostListener listener) Remove a HostListener.
void	setInterval(int newInterval) Set the polling interval for this MonitoredHost.

Methods inherited from class sun.jvmstat.monitor.MonitoredHost

clearLastException, getHostIdentifier, getInterval, getLastException, getMonitoredHost, getMonitoredHost, getMonitoredHost, isErrored, resolveHostId, setLastException

Methods inherited from class java.lang.Object

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

Constructor Detail

MonitoredHostProvider

public MonitoredHostProvider(HostIdentifier hostId)
                      throws MonitorException

Create a MonitoredHostProvider instance using the given HostIdentifier.

Parameters:

hostId - the host identifier for this MonitoredHost

Throws:

MonitorException - Thrown on any error encountered while communicating with the remote host.

Method Detail

getMonitoredVm

public MonitoredVm getMonitoredVm(VmIdentifier vmid)
                           throws MonitorException

Get the MonitoredVm for the given Java Virtual Machine. The default sampling interval is used for the MonitoredVm instance.

Specified by:

getMonitoredVm in class MonitoredHost

Parameters:

vmid - the VmIdentifier specifying the target Java Virtual Machine.

Returns:

MonitoredVm - the MonitoredVm instance for the target Java Virtual Machine.

Throws:

MonitorException - Thrown if monitoring errors occur.

getMonitoredVm

public MonitoredVm getMonitoredVm(VmIdentifier vmid,
                                  int interval)
                           throws MonitorException

Get the MonitoredVm for the given Java Virtual Machine. The sampling interval is set to the given interval.

Specified by:

getMonitoredVm in class MonitoredHost

Parameters:

vmid - the VmIdentifier specifying the target Java Virtual Machine.

interval - the sampling interval for the target Java Virtual Machine.

Returns:

MonitoredVm - the MonitoredVm instance for the target Java Virtual Machine.

Throws:

MonitorException - Thrown if monitoring errors occur.

detach

public void detach(MonitoredVm vm)
            throws MonitorException

Detach from the indicated MonitoredVm.

Specified by:

detach in class MonitoredHost

Parameters:

vm - the monitored Java Virtual Machine.

Throws:

MonitorException - Thrown if monitoring errors occur.

addHostListener

public void addHostListener(HostListener listener)

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

Specified by:

addHostListener in class MonitoredHost

Parameters:

listener - the HostListener to add.

removeHostListener

public void removeHostListener(HostListener listener)

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

Specified by:

removeHostListener in class MonitoredHost

Parameters:

listener - the HostListener to add.

setInterval

public void setInterval(int newInterval)

Description copied from class: MonitoredHost

Set the polling interval for this MonitoredHost.

Overrides:

setInterval in class MonitoredHost

Parameters:

newInterval - the polling interval, in milliseconds

activeVms

public Set<Integer> activeVms()
                       throws MonitorException

Return the current set of active Java Virtual Machines for this MonitoredHost. The returned Set contains Integer instances holding the local virtual machine identifier, or lvmid for each instrumented Java Virtual Machine currently available.

Specified by:

activeVms in class MonitoredHost

Returns:

Set - the current set of active Java Virtual Machines associated with this MonitoredHost, or the empty set of none.

Throws:

MonitorException - Thrown if monitoring errors occur.