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org.mortbay.jetty.servlet
Class AbstractSessionManager  

java.lang.Object
  org.mortbay.jetty.servlet.AbstractSessionManager

All Implemented Interfaces:

org.mortbay.util.LifeCycle, java.io.Serializable, SessionManager

Direct Known Subclasses:

HashSessionManager

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public abstract class AbstractSessionManager

extends java.lang.Object

implements SessionManager

An Abstract implementation of SessionManager. The partial implementation of SessionManager interface provides the majority of the handling required to implement a SessionManager. Concrete implementations of SessionManager based on AbstractSessionManager need only implement the newSession method to return a specialized version of the Session inner class that provides an attribute Map.

If the property org.mortbay.jetty.servlet.AbstractSessionManager.23Notifications is set to true, the 2.3 servlet spec notification style will be used.

Version:

$Id: AbstractSessionManager.java,v 1.35 2003/10/19 12:12:39 gregwilkins Exp $

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Nested Class Summary
class	AbstractSessionManager.Session
(package private)  class	AbstractSessionManager.SessionScavenger           SessionScavenger is a background thread that kills off old sessions

 

Field Summary
static boolean	__24SessionDestroyed
static int	__distantFuture
private  int	_dftMaxIdleSecs
protected  ServletHandler	_handler
protected  int	_maxSessions
protected  int	_minSessions
protected  java.util.Random	_random
private  int	_scavengePeriodMs
private  AbstractSessionManager.SessionScavenger	_scavenger
protected  java.util.ArrayList	_sessionAttributeListeners
protected  java.util.ArrayList	_sessionListeners
protected  java.util.Map	_sessions
private  boolean	_useRequestedId
private  java.lang.String	_workerName
private static org.apache.commons.logging.Log	log

 

Fields inherited from interface org.mortbay.jetty.servlet.SessionManager

__MaxAge, __SessionCookie, __SessionDomain, __SessionPath, __SessionURL, __SessionUrlPrefix

 

Constructor Summary

AbstractSessionManager()

AbstractSessionManager(java.util.Random random)

 

Method Summary
void	addEventListener(java.util.EventListener listener)           Add an event listener.
javax.servlet.http.HttpSession	getHttpSession(java.lang.String id)
int	getMaxInactiveInterval()
int	getMaxSessions()
int	getMinSessions()
int	getScavengePeriod()
java.util.Map	getSessionMap()
int	getSessions()
boolean	getUseRequestedId()
java.lang.String	getWorkerName()           Get the workname.
void	initialize(ServletHandler handler)
boolean	isStarted()
javax.servlet.http.HttpSession	newHttpSession(javax.servlet.http.HttpServletRequest request)
protected abstract  AbstractSessionManager.Session	newSession(javax.servlet.http.HttpServletRequest request)
private  java.lang.String	newSessionId(javax.servlet.http.HttpServletRequest request, long created)
void	removeEventListener(java.util.EventListener listener)
void	resetStats()
private  void	scavenge()           Find sessions that have timed out and invalidate them.
void	setMaxInactiveInterval(int seconds)
void	setScavengePeriod(int seconds)
void	setUseRequestedId(boolean useRequestedId)
void	setWorkerName(java.lang.String workerName)           Set the workname.
void	start()           Start the LifeCycle.
void	stop()           Stop the LifeCycle.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

log

private static org.apache.commons.logging.Log log

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__distantFuture

public static final int __distantFuture

See Also:

Constant Field Values

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__24SessionDestroyed

public static final boolean __24SessionDestroyed

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_dftMaxIdleSecs

private int _dftMaxIdleSecs

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_scavengePeriodMs

private int _scavengePeriodMs

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_workerName

private java.lang.String _workerName

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_useRequestedId

private boolean _useRequestedId

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_sessionListeners

protected transient java.util.ArrayList _sessionListeners

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_sessionAttributeListeners

protected transient java.util.ArrayList _sessionAttributeListeners

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_sessions

protected transient java.util.Map _sessions

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_random

protected transient java.util.Random _random

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_handler

protected transient ServletHandler _handler

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_minSessions

protected int _minSessions

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_maxSessions

protected int _maxSessions

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_scavenger

private transient AbstractSessionManager.SessionScavenger _scavenger

Constructor Detail

AbstractSessionManager

public AbstractSessionManager()

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AbstractSessionManager

public AbstractSessionManager(java.util.Random random)

Method Detail

getUseRequestedId

public boolean getUseRequestedId()

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setUseRequestedId

public void setUseRequestedId(boolean useRequestedId)

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initialize

public void initialize(ServletHandler handler)

Specified by:

initialize in interface SessionManager

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getSessionMap

public java.util.Map getSessionMap()

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getSessions

public int getSessions()

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getMinSessions

public int getMinSessions()

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getMaxSessions

public int getMaxSessions()

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resetStats

public void resetStats()

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newSessionId

private java.lang.String newSessionId(javax.servlet.http.HttpServletRequest request,
                                      long created)

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getHttpSession

public javax.servlet.http.HttpSession getHttpSession(java.lang.String id)

Specified by:

getHttpSession in interface SessionManager

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newHttpSession

public javax.servlet.http.HttpSession newHttpSession(javax.servlet.http.HttpServletRequest request)

Specified by:

newHttpSession in interface SessionManager

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newSession

protected abstract AbstractSessionManager.Session newSession(javax.servlet.http.HttpServletRequest request)

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getWorkerName

public java.lang.String getWorkerName()

Get the workname. If set, the workername is dot appended to the session ID and can be used to assist session affinity in a load balancer.

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setWorkerName

public void setWorkerName(java.lang.String workerName)

Set the workname. If set, the workername is dot appended to the session ID and can be used to assist session affinity in a load balancer.

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getMaxInactiveInterval

public int getMaxInactiveInterval()

Specified by:

getMaxInactiveInterval in interface SessionManager

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setMaxInactiveInterval

public void setMaxInactiveInterval(int seconds)

Specified by:

setMaxInactiveInterval in interface SessionManager

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getScavengePeriod

public int getScavengePeriod()

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setScavengePeriod

public void setScavengePeriod(int seconds)

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addEventListener

public void addEventListener(java.util.EventListener listener)
                      throws java.lang.IllegalArgumentException

Description copied from interface: SessionManager

Add an event listener.

Specified by:

addEventListener in interface SessionManager

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removeEventListener

public void removeEventListener(java.util.EventListener listener)

Specified by:

removeEventListener in interface SessionManager

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isStarted

public boolean isStarted()

Specified by:

isStarted in interface org.mortbay.util.LifeCycle

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start

public void start()
           throws java.lang.Exception

Description copied from interface: org.mortbay.util.LifeCycle

Start the LifeCycle.

Specified by:

start in interface org.mortbay.util.LifeCycle

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stop

public void stop()

Description copied from interface: org.mortbay.util.LifeCycle

Stop the LifeCycle. The LifeCycle may wait for current activities to complete normally, but it can be interrupted.

Specified by:

stop in interface org.mortbay.util.LifeCycle

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scavenge

private void scavenge()

Find sessions that have timed out and invalidate them. This runs in the SessionScavenger thread.

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