com.creamtec.ajaxswing.servlet
Class SessionManager

java.lang.Object
  java.lang.Thread
      com.creamtec.ajaxswing.servlet.SessionManager

All Implemented Interfaces:

java.lang.Runnable

public class SessionManager
extends java.lang.Thread

AjaxSwing does its own session management because certain servlet engines had problems with session expiration. The session manager runs a background thread that periodically checks if the sessions have been accessed. If a session has not been accessed for more then a timeout, is expired.

Nested Class Summary

static class

SessionManager.SessionInfo Stores information about the managed session

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

SessionManager(long sessionTimeout)
Initializes and starts the session manager

SessionManager(long sessionTimeout, java.lang.String name)
Initializes and starts the session manager

Method Summary

void	actionPerformed(java.lang.Object session) Resets timeout information for the given session.
void	addSession(java.lang.Object session, SessionListener listener, ClientAgentRemote agent) Places a session into a map of sessions.
SessionManager.SessionInfo	getSession(int clientId)
java.util.Set	getSessions() Returns a set of all active sessions.
long	getSessionTimeout() Returns session timeout
void	removeSession(java.lang.Object session) Removes a given session from the managed list
void	run() Periodically iterate all sessions and expire those that timed out
void	setSessionTimeout(long timeout) Sets session timeout
void	shutdown() Stops background session tracking thread.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SessionManager

public SessionManager(long sessionTimeout)

Initializes and starts the session manager

Parameters:

sessionTimeout - timeout in seconds

SessionManager

public SessionManager(long sessionTimeout,
                      java.lang.String name)

Initializes and starts the session manager

Parameters:

sessionTimeout - timeout in seconds

name - application name used for logging

Method Detail

addSession

public void addSession(java.lang.Object session,
                       SessionListener listener,
                       ClientAgentRemote agent)

Places a session into a map of sessions.

Parameters:

session - session

listener - will be called when this session has expired

removeSession

public void removeSession(java.lang.Object session)

Removes a given session from the managed list

Parameters:

session - Object

actionPerformed

public void actionPerformed(java.lang.Object session)

Resets timeout information for the given session.

Parameters:

session - session

shutdown

public void shutdown()

Stops background session tracking thread.

getSessions

public java.util.Set getSessions()

Returns a set of all active sessions.

Returns:

Set

getSessionTimeout

public long getSessionTimeout()

Returns session timeout

Returns:

timeout

setSessionTimeout

public void setSessionTimeout(long timeout)

Sets session timeout

Parameters:

timeout - new timeout

run

public void run()

Periodically iterate all sessions and expire those that timed out

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

getSession

public SessionManager.SessionInfo getSession(int clientId)