public class

MonitoredHostProvider

extends MonitoredHost

java.lang.Object
↳	sun.jvmstat.monitor.MonitoredHost
	↳	sun.jvmstat.perfdata.monitor.protocol.file.MonitoredHostProvider

Class Overview

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

Summary

Constants
int	DEFAULT_POLLING_INTERVAL	The default polling interval.

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Inherited Fields

From class sun.jvmstat.monitor.MonitoredHost

Public Constructors
	MonitoredHostProvider(HostIdentifier hostId) Create a MonitoredHostProvider instance using the given HostIdentifier.

Public Methods
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..

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Inherited Methods

From class sun.jvmstat.monitor.MonitoredHost

abstract Set<Integer>	activeVms() Return the current set of active Java Virtual Machines for this MonitoredHost.
abstract void	addHostListener(HostListener listener) Add a HostListener.
void	clearLastException() Clear the last exception.
abstract void	detach(MonitoredVm vm) Detach from the indicated MonitoredVm.
HostIdentifier	getHostIdentifier() Return the resolved HostIdentifier for this MonitoredHost.
int	getInterval() Get the polling interval.
Exception	getLastException() Get the last exception encountered while polling this MonitoredHost.
static MonitoredHost	getMonitoredHost(HostIdentifier hostId) Factory method to construct a MonitoredHost instance to manage the connection to the host indicated by `hostId`.
static MonitoredHost	getMonitoredHost(String hostIdString) Factory method to construct MonitoredHost instances to manage connections to the host indicated by `hostIdString`
static MonitoredHost	getMonitoredHost(VmIdentifier vmid) Factory method to construct a MonitoredHost instance to manage the connection to the Java Virtual Machine indicated by `vmid`.
abstract MonitoredVm	getMonitoredVm(VmIdentifier id, int interval) Get the MonitoredVm for the given Java Virtual Machine.
abstract MonitoredVm	getMonitoredVm(VmIdentifier id) Get the MonitoredVm for the given Java Virtual Machine.
boolean	isErrored() Test if this MonitoredHost is in the errored state.
abstract void	removeHostListener(HostListener listener) Remove a HostListener.
static HostIdentifier	resolveHostId(HostIdentifier hostId) Method to resolve unspecified components of the given HostIdentifier by constructing a new HostIdentifier that replaces the unspecified components with the default values.
void	setInterval(int interval) Set the polling interval for this MonitoredHost.
void	setLastException(Exception lastException) Set the last exception encountered while polling this MonitoredHost.

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

Constants

public static final int DEFAULT_POLLING_INTERVAL

The default polling interval. Not used by the file: protocol.

Constant Value: 0 (0x00000000)

Public Constructors

public MonitoredHostProvider (HostIdentifier hostId)

Create a MonitoredHostProvider instance using the given HostIdentifier.

Parameters

hostId	the host identifier for this MonitoredHost

Public Methods

public Set<Integer> activeVms ()

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..

Note - the file: protocol currently does not support the notion of tracking active or inactive Java Virtual Machines. This method currently returns an empty set.

Returns

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

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..

Note - the file: protocol currenly does not support registration or notification of event listeners. This method silently ignores the add request.

Parameters

listener	the HostListener to add.

public void detach (MonitoredVm vm)

Detach from the indicated MonitoredVm.

Parameters

vm	the monitored Java Virtual Machine.

public MonitoredVm getMonitoredVm (VmIdentifier vmid)

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

Parameters

vmid	the VmIdentifier specifying the target Java Virtual Machine.

Returns

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

Throws

MonitorException

public MonitoredVm getMonitoredVm (VmIdentifier vmid, int interval)

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

Note - the file: protocol silently ignores the interval parameter.

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

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..

Note - the file: protocol currenly does not support registration or notification of event listeners. This method silently ignores the remove request.

Parameters

listener	the HostListener to add.

Classes

MonitoredHostProvider

Class Overview

Summary

Constants

public static final int DEFAULT_POLLING_INTERVAL

Public Constructors

public MonitoredHostProvider (HostIdentifier hostId)

Parameters

Public Methods

public Set<Integer> activeVms ()

Returns

public void addHostListener (HostListener listener)

Parameters

public void detach (MonitoredVm vm)

Parameters

public MonitoredVm getMonitoredVm (VmIdentifier vmid)

Parameters

Returns

Throws

public MonitoredVm getMonitoredVm (VmIdentifier vmid, int interval)

Parameters

Returns

Throws

public void removeHostListener (HostListener listener)

Parameters