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Class com.sun.jaw.impl.agent.services.monitor.Monitor

java.lang.Object
   |
   +----com.sun.jaw.impl.agent.services.monitor.Monitor

public class Monitor

extends Object

implements AlarmClockListener, Serializable, ActivatableIf

The aim of this service is to observe the evolution in time of the value of a property of a given m-bean. The monitor service monitors values of a property in an observed m-bean. The observed property is monitored at intervals specified by the granularity period. A gauge value (derived gauge) is derived from the values of the observed property.

See Also:

CounterMonitor, GaugeMonitor

Monitor()

Default constructor.

addMonitorListener(MonitorListener)

Allows to register a listener for receiving monitor events.

deleteCmf()

Delete the monitor.

getClassVersion()

Returns the version of this class.

getDerivedGauge()

Returns the derived gauge.

getDerivedGaugeTimestamp()

Returns the derived gauge timestamp.

getGranularityPeriod()

Deprecated.

getGranularityPeriodAsLong()

Returns the granularity period (in milliseconds).

getObservedObject()

Returns the object being observed.

getObservedProperty()

Returns the name of the property being observed.

handleAlarmClock(AlarmClockEvent)

This handle will be called each time the alarm-clock has exceeded its timeout.

initCmf(Framework, ObjectName, boolean, ModificationList)

Initialize the monitor.

isActive()

Tests if the Monitor is active.

performStart()

Activates the Monitor service.

performStop()

Deactivates the Monitor service.

removeMonitorListener(MonitorListener)

Enables a listener for monitor events to be removed.

setGranularityPeriod(Integer)

Deprecated.

setGranularityPeriodAsLong(Long)

Sets the granularity period (in milliseconds).

setObservedObject(ObjectName)

Sets the object to observe.

setObservedProperty(String)

Sets the property to observe.

 public Monitor()

Default constructor.

 public void initCmf(Framework cmf,
                     ObjectName name,
                     boolean db,
                     ModificationList list) throws InstanceAlreadyExistException

Initialize the monitor. The method will declare the object to the Core Management Framework.
For internal use only.

Parameters:

cmf - The core management framework to register the service with.

name - Object name containing configuration infotmation.

db - Indicates if persistent storage is required.

list - The modification list to use for setting up parameters.

Throws: InstanceAlreadyExistException

The m-bean is already registered in the repository.

 public void deleteCmf()

Delete the monitor.

 public void handleAlarmClock(AlarmClockEvent e)

This handle will be called each time the alarm-clock has exceeded its timeout.

 public void addMonitorListener(MonitorListener listener)

Allows to register a listener for receiving monitor events.

 public void removeMonitorListener(MonitorListener listener)

Enables a listener for monitor events to be removed.

 public ObjectName getObservedObject()

Returns the object being observed.

 public void setObservedObject(ObjectName object)

Sets the object to observe.

 public String getObservedProperty()

Returns the name of the property being observed.

 public void setObservedProperty(String property)

Sets the property to observe.

 public Long getGranularityPeriodAsLong()

Returns the granularity period (in milliseconds).

 public Integer getGranularityPeriod()

Note: getGranularityPeriod() is deprecated.

 public void setGranularityPeriodAsLong(Long gp)

Sets the granularity period (in milliseconds).

 public void setGranularityPeriod(Integer gp)

Note: setGranularityPeriod() is deprecated.

 public Number getDerivedGauge()

Returns the derived gauge.

 public Date getDerivedGaugeTimestamp()

Returns the derived gauge timestamp.

 public static String getClassVersion()

Returns the version of this class.

 public synchronized void performStart()

Activates the Monitor service.

 public synchronized void performStop()

Deactivates the Monitor service.

 public boolean isActive()

Tests if the Monitor is active.

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