uk.co.westhawk.examplev1

Class GenericGetOne

java.lang.Object

java.awt.Component

java.awt.Container

java.awt.Panel

java.applet.Applet

uk.co.westhawk.examplev1.GenericGetOne

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible

public class GenericGetOne
extends java.applet.Applet

The headless GenericGetOne applet will use the GetNextPdu to request a single MIB variable. The idea is to use this (signed!) applet in a webpage via javascript (livescript). If the applet isn't signed, you can only connect back to the web server.

The applet will call the javascript function loaded() in method start() to indicate the applet is loaded. You have to define this function, even when empty.

In javascript, call the send() method, passing the name of the callback function. The applet will call this javascript function, when receiving the response:

 function <jsCallback>(host, port, comm, requestOid, responseOid, value, error) 
 {
 }
 

See example html file TestGenericGetOne.html

Version:

$Revision$ $Date$

Author:

Birgit Arkesteijn

See Also:

GetNextPdu, Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.applet.Applet

java.applet.Applet.AccessibleApplet

Nested classes/interfaces inherited from class java.awt.Panel

java.awt.Panel.AccessibleAWTPanel

Nested classes/interfaces inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

Constructors

Constructor and Description
GenericGetOne() Constructor.

Method Summary

Modifier and Type	Method and Description
protected JSObject	getWindow()
void	init()
protected void	printDebug(java.lang.String text)
protected void	printError(java.lang.String text)
protected void	pushValue(java.lang.String host, int port, java.lang.String comm, java.lang.String requestOid, java.lang.String responseOid, java.lang.String value, java.lang.String error, java.lang.String jsCallback) Pushes the value back to javascript by calling setValue.
protected void	removeMe(uk.co.westhawk.examplev1.GenericGetOne.PduCallback pduCb)
void	send(java.lang.String host, java.lang.String port, java.lang.String comm, java.lang.String oid, java.lang.String jsCallback) Send a GetNext request.
void	start()
void	stop()

Methods inherited from class java.applet.Applet

destroy, getAccessibleContext, getAppletContext, getAppletInfo, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, getParameterInfo, isActive, isValidateRoot, newAudioClip, play, play, resize, resize, setStub, showStatus

Methods inherited from class java.awt.Panel

addNotify

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, setLayout, transferFocusDownCycle, update, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, revalidate, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Constructor Detail

GenericGetOne

public GenericGetOne()

Constructor.

Method Detail

send

public void send(java.lang.String host,
                 java.lang.String port,
                 java.lang.String comm,
                 java.lang.String oid,
                 java.lang.String jsCallback)

Send a GetNext request. The answer will be pushed back via function 'jsCallback'.

Parameters:

host - The host name or address

port - The port number of the host

comm - The community name

oid - The request oid

jsCallback - The javascript function to call when the response comes in

See Also:

pushValue(java.lang.String, int, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String)

pushValue

protected void pushValue(java.lang.String host,
                         int port,
                         java.lang.String comm,
                         java.lang.String requestOid,
                         java.lang.String responseOid,
                         java.lang.String value,
                         java.lang.String error,
                         java.lang.String jsCallback)

Pushes the value back to javascript by calling setValue. The function (with name passed to send()) has to exist in javascript:

 function <callback>(host, port, comm, requestOid, responseOid, value, error) 
 {
 }
 

Parameters:

value - The response value of the (latest) request.

init

public void init()

Overrides:

init in class java.applet.Applet

start

public void start()

Overrides:

start in class java.applet.Applet

stop

public void stop()

Overrides:

stop in class java.applet.Applet

getWindow

protected JSObject getWindow()

printError

protected void printError(java.lang.String text)

printDebug

protected void printDebug(java.lang.String text)

removeMe

protected void removeMe(uk.co.westhawk.examplev1.GenericGetOne.PduCallback pduCb)