uk.co.westhawk.snmp.beans

Class NcdPerfDataBean

java.lang.Object

uk.co.westhawk.snmp.beans.SNMPBean

uk.co.westhawk.snmp.beans.NcdPerfDataBean

All Implemented Interfaces:

java.beans.PropertyChangeListener, java.util.EventListener

public class NcdPerfDataBean
extends SNMPBean
implements java.beans.PropertyChangeListener

This bean collects information about a IBM Network Computer.

It provide the following data:
• the speed of the Ethernet Card
• the available memory in bytes
• the name of the user that is logged in

A message will be set if some of the data is not available

This class uses the NCDware v3.2 MIB, which was very kindly provided to me by Network Computing Devices, inc (NCD). This MIB is an extention of the older versions of the MIB

The properties in the parent classes should be set, before calling the action() method. Via a PropertyChangeEvent the application/applet will be notified.

Version:

$Revision$ $Date$

Author:

Birgit Arkesteijn

See Also:

SNMPBean.setHost(java.lang.String), SNMPBean.setPort(int), SNMPBean.setCommunityName(java.lang.String), setUpdateInterval(int), setUpdateInterval(String), SNMPBean.addPropertyChangeListener(java.beans.PropertyChangeListener), SNMPBean.action()

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	memoryPropertyName Used as propertyName when a propertyChangeEvent is fired because the memory was updated
static java.lang.String	messagePropertyName Used as propertyName when a propertyChangeEvent is fired because a message was set
static java.lang.String	noLogin Used as name when no one is logged in.
static java.lang.String	noName Used as name when the name is not available.
static java.lang.String	speedPropertyName Used as propertyName when a propertyChangeEvent is fired because the speed was updated
static java.lang.String	userPropertyName Used as propertyName when a propertyChangeEvent is fired because the user name was updated

Fields inherited from class uk.co.westhawk.snmp.beans.SNMPBean

bindAddr, community, context, host, message, port, propertyChangeListener, socketType

Constructor Summary

Constructors

Constructor and Description
NcdPerfDataBean() The default constructor.

Method Summary

Modifier and Type	Method and Description
void	action() This method starts sending the SNMP request.
java.util.Date	getLastUpdateDate() Returns the date of the moment when this bean was last updated.
long	getMemory() Returns the amount of RAM memory in bytes which is currently available.
long	getSpeed() Returns the speed (bits per second) of the ethernet card interface.
int	getUpdateInterval() Returns the update interval.
java.lang.String	getUserName() Returns the login name of the user that is logged in.
void	propertyChange(java.beans.PropertyChangeEvent e) This method is called when a new value of the speed, memory, user or message is available.
protected void	setMessage(java.lang.String st) Returns the message (if any).
void	setUpdateInterval(int i) Sets the update interval.
void	setUpdateInterval(java.lang.String i) Sets the update interval as String.

Methods inherited from class uk.co.westhawk.snmp.beans.SNMPBean

addPropertyChangeListener, firePropertyChange, getBindAddress, getCommunityName, getHost, getMessage, getPort, getSocketType, isHostPortReachable, removePropertyChangeListener, setBindAddress, setCommunityName, setHost, setPort, setPort, setSocketType

Methods inherited from class java.lang.Object

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

Field Detail

speedPropertyName

public static final java.lang.String speedPropertyName

Used as propertyName when a propertyChangeEvent is fired because the speed was updated

See Also:

Constant Field Values

memoryPropertyName

public static final java.lang.String memoryPropertyName

Used as propertyName when a propertyChangeEvent is fired because the memory was updated

See Also:

Constant Field Values

userPropertyName

public static final java.lang.String userPropertyName

Used as propertyName when a propertyChangeEvent is fired because the user name was updated

See Also:

Constant Field Values

messagePropertyName

public static final java.lang.String messagePropertyName

Used as propertyName when a propertyChangeEvent is fired because a message was set

See Also:

Constant Field Values

noLogin

public static final java.lang.String noLogin

Used as name when no one is logged in.

See Also:

Constant Field Values

noName

public static final java.lang.String noName

Used as name when the name is not available.

See Also:

Constant Field Values

Constructor Detail

NcdPerfDataBean

public NcdPerfDataBean()

The default constructor.

Method Detail

getSpeed

public long getSpeed()

Returns the speed (bits per second) of the ethernet card interface.

Returns:

the speed (b/s)

getMemory

public long getMemory()

Returns the amount of RAM memory in bytes which is currently available.

Returns:

the memory in bytes

getUserName

public java.lang.String getUserName()

Returns the login name of the user that is logged in.

Returns:

the user name

See Also:

noLogin, noName

getUpdateInterval

public int getUpdateInterval()

Returns the update interval. This is the interval that the bean will sleep between 2 requests.

Returns:

the update interval in msec

See Also:

setUpdateInterval(int), setUpdateInterval(String)

setUpdateInterval

public void setUpdateInterval(int i)

Sets the update interval. This is the interval that the bean will sleep between 2 requests. The default will be 3000 (= 3 sec).

Parameters:

i - the interval in msec

See Also:

getUpdateInterval(), setUpdateInterval(String)

setUpdateInterval

public void setUpdateInterval(java.lang.String i)

Sets the update interval as String.

Parameters:

i - the interval in msec as String

See Also:

getUpdateInterval(), setUpdateInterval(int)

getLastUpdateDate

public java.util.Date getLastUpdateDate()

Returns the date of the moment when this bean was last updated. This might be null when the first time the update was not finished.

Returns:

the last update date

action

public void action()

This method starts sending the SNMP request. All properties should be set before this method is called. The actual sending will take place in the run method. It makes a new snmp context and initialises all variables before starting.

Specified by:

action in class SNMPBean

setMessage

protected void setMessage(java.lang.String st)

Description copied from class: SNMPBean

Returns the message (if any). The message is used to give the user feedback if anything is happened (usually when something went wrong) with the connection.

Overrides:

setMessage in class SNMPBean

Parameters:

st - the message string

See Also:

SNMPBean.getMessage()

propertyChange

public void propertyChange(java.beans.PropertyChangeEvent e)

This method is called when a new value of the speed, memory, user or message is available. It will propagate this event to any listeners.

Specified by:

propertyChange in interface java.beans.PropertyChangeListener

See Also:

speedPropertyName, memoryPropertyName, userPropertyName, messagePropertyName