net.fenyo.gnetwatch.actions
Class ActionPing

java.lang.Object
  net.fenyo.gnetwatch.GUI.VisualElement
      net.fenyo.gnetwatch.actions.Action
          net.fenyo.gnetwatch.actions.ActionPing

public class ActionPing
extends Action

Instances of this action class can send/receive ICMP echo messages to their target and create events of type EventReachable.

Version:

$Id: ActionPing.java,v 1.44 2008/04/30 16:13:11 fenyo Exp $

Author:

Alexandre Fenyo

Nested Class Summary

Nested classes/interfaces inherited from class net.fenyo.gnetwatch.actions.Action

Action.InterruptCause

Field Summary

private ExternalCommand	cmd_ping
private static Log	log

Constructor Summary

ActionPing()
Default constructor.

ActionPing(Target target, Background background)
Constructor.

Method Summary

protected void	disposed() Called when this element is being removed.
long	getMaxDelay() Returns the timeout associated with this action.
java.lang.String	getQueueName() Returns the preferred queue.
protected void	initialize(GUI gui) Called to inform about the current GUI.
void	interrupt(Action.InterruptCause cause) Asks this action to stop rapidely.
void	invoke() Computes the RTT to the target.

Methods inherited from class net.fenyo.gnetwatch.actions.Action

canManageThisChild, getBackground, getTarget, setBackground, setTarget

Methods inherited from class net.fenyo.gnetwatch.GUI.VisualElement

addParent, contains, duplicateTreeItemOnce, expandTreeItems, getAllParents, getChildren, getDescription, getGUI, getId, getItem, getParents, getProgress, getSubElements, getSubElements, getTreeItems, getType, informSelected, isDisposed, isThisOurTreeItem, removeVisualElements, selected, setChildren, setDescription, setGUI, setId, setImage, setImageExec, setImageFolder, setImageHost, setImageHost6, setImageHost6SNMP, setImageHostSNMP, setImageInterface, setImageMultiRow, setImageNetwork, setImageOscillo, setImageQueue, setImageWatch, setItem, setParent, setParent, setProgress, setType, unselected

Methods inherited from class java.lang.Object

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

Field Detail

log

private static Log log

cmd_ping

private ExternalCommand cmd_ping

Constructor Detail

ActionPing

public ActionPing(Target target,
                  Background background)

Constructor.

Parameters:

target - target this action works on.

background - queue manager by which this action will add events.

ActionPing

public ActionPing()

Default constructor.

Parameters:

none. -

Method Detail

initialize

protected void initialize(GUI gui)

Called to inform about the current GUI.

Overrides:

initialize in class Action

Parameters:

gui - current GUI instance.

getQueueName

public java.lang.String getQueueName()

Returns the preferred queue.

Overrides:

getQueueName in class Action

Parameters:

none. -

Returns:

String preferred queue.

getMaxDelay

public long getMaxDelay()

Returns the timeout associated with this action.

Overrides:

getMaxDelay in class Action

Parameters:

none. -

Returns:

long timeout.

interrupt

public void interrupt(Action.InterruptCause cause)
               throws java.io.IOException

Asks this action to stop rapidely.

Overrides:

interrupt in class Action

Parameters:

cause - cause.

Throws:

java.io.IOException - IO exception.

invoke

public void invoke()
            throws java.io.IOException,
                   java.lang.InterruptedException

Computes the RTT to the target.

Overrides:

invoke in class Action

Parameters:

none. -

Throws:

java.io.IOException - IO exception.

java.lang.InterruptedException - exception.

disposed

protected void disposed()

Called when this element is being removed.

Overrides:

disposed in class Action

Parameters:

none. -