scone.accesstracking
Class EventDecoder

java.lang.Object
  scone.accesstracking.EventDecoder

public class EventDecoder
extends java.lang.Object

The methods of this class are called by AppletConnector. Every message of the applet has its own method to evaluate the received information and to create and change Access events.

Version:

1.1, 22-Feb-2002

Author:

Torsten Hass, Harald Weinreich

Field Summary

static int	BACK
static int	BOOKMARK
static int	BROWSER_GECKO
static int	BROWSER_IE
static int	BROWSER_NS
static int	FORMSUBMIT
static int	FRAGMENT
static int	HEURISTIC
static int	LINK
static int	NEWURL
static int	NEWWINDOW
static int	NEXT
static int	RELOAD
static int	SELFLINK
static int	SKIPPED

Constructor Summary

EventDecoder()

Method Summary

void	formSubmited(long appletStartTime, java.lang.String userId, java.lang.String nodeId, long startTime, java.lang.String frameName, long formTime, java.lang.String formAction) This Method is invoked by Transceiver every time the User submits a form in a browser window.
void	linkClicked(long appletStartTime, java.lang.String userId, java.lang.String nodeId, long startTime, java.lang.String frameName, int frameCount, java.lang.String megTime, long linkTime, java.lang.String linkId) This Method is invoked by Transceiver every time the User clicked a link in a browser window.
void	logMessage(java.lang.String className, java.lang.String method, java.lang.String param) This Method is invoked by Transceiver every time a specific user-action shall be logged.
void	pageUnloaded(long appletStartTime, java.lang.String userId, java.lang.String nodeId, long startTime, java.lang.String frameName, long stoppedTime) If the user leaves a page, the applet sends a message containing stopp time and all key values to get the right access event and store the calculated stay time.
void	printMsg(java.lang.String textMsg)

Methods inherited from class java.lang.Object

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

Field Detail

LINK

public static final int LINK

See Also:

Constant Field Values

FRAGMENT

public static final int FRAGMENT

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Constant Field Values

SELFLINK

public static final int SELFLINK

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Constant Field Values

FORMSUBMIT

public static final int FORMSUBMIT

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Constant Field Values

RELOAD

public static final int RELOAD

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Constant Field Values

BACK

public static final int BACK

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Constant Field Values

NEXT

public static final int NEXT

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Constant Field Values

SKIPPED

public static final int SKIPPED

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Constant Field Values

NEWWINDOW

public static final int NEWWINDOW

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Constant Field Values

BOOKMARK

public static final int BOOKMARK

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Constant Field Values

NEWURL

public static final int NEWURL

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Constant Field Values

BROWSER_NS

public static final int BROWSER_NS

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Constant Field Values

BROWSER_IE

public static final int BROWSER_IE

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Constant Field Values

BROWSER_GECKO

public static final int BROWSER_GECKO

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Constant Field Values

HEURISTIC

public static final int HEURISTIC

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Constant Field Values

Constructor Detail

EventDecoder

public EventDecoder()

Method Detail

pageUnloaded

public void pageUnloaded(long appletStartTime,
                         java.lang.String userId,
                         java.lang.String nodeId,
                         long startTime,
                         java.lang.String frameName,
                         long stoppedTime)

If the user leaves a page, the applet sends a message containing stopp time and all key values to get the right access event and store the calculated stay time.

Parameters:

appletStartTime -

userId -

nodeId -

startTime -

frameName -

stoppedTime - The time the page was unloaded

linkClicked

public void linkClicked(long appletStartTime,
                        java.lang.String userId,
                        java.lang.String nodeId,
                        long startTime,
                        java.lang.String frameName,
                        int frameCount,
                        java.lang.String megTime,
                        long linkTime,
                        java.lang.String linkId)

This Method is invoked by Transceiver every time the User clicked a link in a browser window. If the link is a link to the exact same URI, this information is saved to the LastAction bit array in the History class. So the next page can get the information of it's invokation. If the link is an fragment link, a new AccessEvent is created an added to the history. If the link is a link to another URI, this information is stored to the lastAction bit array for the next page to get this information.

Parameters:

appletStartTime -

userId -

nodeId -

startTime -

frameName -

frameCount - Number of frames in frame set

megTime - Time of javascript creation

linkTime - The time the link was clicked

linkId -

accessEventExistedString - If page comes from cache, a new start time had to be used.

browserName - Number describing the browser

formSubmited

public void formSubmited(long appletStartTime,
                         java.lang.String userId,
                         java.lang.String nodeId,
                         long startTime,
                         java.lang.String frameName,
                         long formTime,
                         java.lang.String formAction)

This Method is invoked by Transceiver every time the User submits a form in a browser window. If the User submits a from, it can either be a mail form or a cgi form. If the form is a cgi form, the browser loads a new page after submit. This method stores the information of a submited form in history.setLastAction for the next page to get it. If it is a mail form, the browser sends the mail but stays on the same page.

Parameters:

appletStartTime -

userId -

nodeId -

startTime -

frameName -

formTime - The time the formsubmit button was clicked

formAction - The Action called by the form

accessEventExistedString - If page comes from cache, a new start time had to be used.

browserName - Number describing the browser

logMessage

public void logMessage(java.lang.String className,
                       java.lang.String method,
                       java.lang.String param)

This Method is invoked by Transceiver every time a specific user-action shall be logged. This can be a pressed key, a mouseover-event or anything that can be traced by JavaScript.

This message is then reported to the class and the (static) method defined in the transmitted parameters.

Use the following JavaScript-Command to send a message:
document.LogApplet.logMsg("logMessage\nclassName=PACKAGE.CLASSNAME\nmethod=STATIC_METHOD\nparameter=PARAMETER_TO_BE_SENT\n");
where the strings in CAPITALS have to be replaced by the class, method and parameter you want...

Parameters:

className - Name of the class that shall be informed

method - Name of the (static) method that shall be informed.

param - The parameter/ message to be sent.

printMsg

public void printMsg(java.lang.String textMsg)