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Java Source Code / Java Documentation » Wiki Engine » JSPWiki » com.ecyrd.jspwiki.auth

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

com.ecyrd.jspwiki.auth .SessionMonitor

SessionMonitor

public class SessionMonitor implements HttpSessionListener(Code)

Manages WikiSession's for different WikiEngine's.

The WikiSession's are stored both in the remote user HttpSession and in the SessionMonitor for the WikeEngine. This class must be configured as a session listener in the web.xml for the wiki web application.

Constructor Summary
public	SessionMonitor()

Method Summary
final public synchronized void	addWikiEventListener(WikiEventListener listener) Registers a WikiEventListener with this instance.
final public WikiSession	find(HttpSession session) Looks up the wiki session associated with a user's Http session and adds it to the session cache.
final protected void	fireEvent(int type, Principal principal, WikiSession session) Fires a WikiSecurityEvent to all registered listeners.
final public static SessionMonitor	getInstance(WikiEngine engine) Returns the instance of the SessionMonitor for this wiki.
final public void	remove(HttpSession session) Removes the wiki session associated with the user's HttpSession from the session cache.
final public synchronized void	removeWikiEventListener(WikiEventListener listener) Un-registers a WikiEventListener with this instance.
public void	sessionCreated(HttpSessionEvent se) Fires when the web container creates a new HTTP session.
public void	sessionDestroyed(HttpSessionEvent se) Removes the user's WikiSession from the internal session cache when the web container destoys an HTTP session.
final public int	sessions() Returns the current number of active wiki sessions.
final public Principal[]	userPrincipals() Returns the current wiki users as a sorted array of Principal objects.

Constructor Detail

SessionMonitor
public SessionMonitor()(Code)
	Construct the SessionListener

Method Detail

addWikiEventListener
final public synchronized void addWikiEventListener(WikiEventListener listener)(Code)
	Registers a WikiEventListener with this instance. Parameters: listener - the event listener since: 2.4.75

find

final public WikiSession find(HttpSession session)(Code)

Looks up the wiki session associated with a user's Http session and adds it to the session cache. This method will return the "guest session" as constructed by WikiSession.guestSession(WikiEngine) if the HttpSession is not currently associated with a WikiSession. This method is guaranteed to return a non-null WikiSession.

Internally, the session is stored in a HashMap; keys are the HttpSession objects, while the values are java.lang.ref.WeakReference -wrapped WikiSessions.

Parameters:
session - the HTTP session the wiki session

fireEvent
final protected void fireEvent(int type, Principal principal, WikiSession session)(Code)
	Fires a WikiSecurityEvent to all registered listeners. Parameters: type - the event type Parameters: principal - the user principal associated with this session Parameters: session - the wiki session since: 2.4.75

getInstance
final public static SessionMonitor getInstance(WikiEngine engine)(Code)
	Returns the instance of the SessionMonitor for this wiki. Only one SessionMonitor exists per WikiEngine. Parameters: engine - the wiki engine the session monitor

remove
final public void remove(HttpSession session)(Code)
	Removes the wiki session associated with the user's HttpSession from the session cache. Parameters: session - the user's HTTP session

removeWikiEventListener
final public synchronized void removeWikiEventListener(WikiEventListener listener)(Code)
	Un-registers a WikiEventListener with this instance. Parameters: listener - the event listener since: 2.4.75

sessionCreated
public void sessionCreated(HttpSessionEvent se)(Code)
	Fires when the web container creates a new HTTP session. Parameters: se - the HTTP session event

sessionDestroyed
public void sessionDestroyed(HttpSessionEvent se)(Code)
	Removes the user's WikiSession from the internal session cache when the web container destoys an HTTP session. Parameters: se - the HTTP session event

sessions
final public int sessions()(Code)
	Returns the current number of active wiki sessions. the number of sessions

userPrincipals

final public Principal[] userPrincipals()(Code)

Returns the current wiki users as a sorted array of Principal objects. The principals are those returned by each WikiSession's WikiSession.getUserPrincipal 's method.

To obtain the list of current WikiSessions, we iterate through our session Map and obtain the list of values, which are WikiSessions wrapped in java.lang.ref.WeakReference objects. Those WeakReferences whose get() method returns non-null values are valid sessions.

the array of user principals

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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