org.jwall.web.audit.session
Class HeuristicSessionTracker

java.lang.Object
  org.jwall.web.audit.session.AbstractSessionTracker
      org.jwall.web.audit.session.HeuristicSessionTracker

All Implemented Interfaces:

AuditEventListener, SessionTracker

public class HeuristicSessionTracker
extends AbstractSessionTracker

This heuristic session-tracker implements the session-algorithm used by most popular web-statistic tools, e.g. WUM.

Author:

Christian Bockermann <chris@jwall.org>

Field Summary

Fields inherited from class org.jwall.web.audit.session.AbstractSessionTracker

activeSessions, sessionTimeOut, timedOutSessions, type

Constructor Summary

HeuristicSessionTracker(long sessionTime)
This constructor creates a session-tracker based on heuristics.

Method Summary

java.lang.String	extractKey(AuditEvent evt) Since this tracker simply relies on the remote address as session key, this method will just return the event's sender-address.
java.lang.String	toString() This method returns a string of all events grouped by their session-id.

Methods inherited from class org.jwall.web.audit.session.AbstractSessionTracker

eventArrived, expireSession, getSession, getSessions, getSessionTimeOut, isExpired, reset, setSessionTimeOut, setStrictSessions, usesStrictSessions

Methods inherited from class java.lang.Object

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

Constructor Detail

HeuristicSessionTracker

public HeuristicSessionTracker(long sessionTime)

This constructor creates a session-tracker based on heuristics. Key to the session is simply the ip-address of the requests.

Parameters:

sessionTime -

Method Detail

extractKey

public java.lang.String extractKey(AuditEvent evt)

Since this tracker simply relies on the remote address as session key, this method will just return the event's sender-address.

Specified by:

extractKey in class AbstractSessionTracker

Parameters:

evt - The AuditEvent to extract a key-id from.

Returns:

A string with the ip-address of the event to be used as a session-id.

toString

public java.lang.String toString()

Description copied from class: AbstractSessionTracker

This method returns a string of all events grouped by their session-id.

Overrides:

toString in class AbstractSessionTracker

Returns:

A string holding all sessions