org.apache.catalina.valves

Class PersistentValve

java.lang.Object

org.apache.catalina.util.LifecycleBase

org.apache.catalina.util.LifecycleMBeanBase

org.apache.catalina.valves.ValveBase

org.apache.catalina.valves.PersistentValve

All Implemented Interfaces:

MBeanRegistration, Contained, JmxEnabled, Lifecycle, Valve

public class PersistentValve
extends ValveBase

Valve that implements per-request session persistence. It is intended to be used with non-sticky load-balancers.

USAGE CONSTRAINT: To work correctly it requires a PersistentManager.

USAGE CONSTRAINT: To work correctly it assumes only one request exists per session at any one time.

Author:

Jean-Frederic Clere

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.catalina.Lifecycle

Lifecycle.SingleUse

Field Summary

Fields inherited from class org.apache.catalina.valves.ValveBase

asyncSupported, container, containerLog, next, sm

Fields inherited from class org.apache.catalina.util.LifecycleMBeanBase

mserver

Fields inherited from interface org.apache.catalina.Lifecycle

AFTER_DESTROY_EVENT, AFTER_INIT_EVENT, AFTER_START_EVENT, AFTER_STOP_EVENT, BEFORE_DESTROY_EVENT, BEFORE_INIT_EVENT, BEFORE_START_EVENT, BEFORE_STOP_EVENT, CONFIGURE_START_EVENT, CONFIGURE_STOP_EVENT, PERIODIC_EVENT, START_EVENT, STOP_EVENT

Constructor Summary

Constructors

Constructor and Description
PersistentValve()

Method Summary

Modifier and Type	Method and Description
void	invoke(Request request, Response response) Select the appropriate child Context to process this request, based on the specified request URI.
protected boolean	isSessionStale(Session session, long timeNow) Indicate whether the session has been idle for longer than its expiration date as of the supplied time.
void	setContainer(Container container) Set the Container with which this Valve is associated, if any.

Methods inherited from class org.apache.catalina.valves.ValveBase

backgroundProcess, getContainer, getDomainInternal, getNext, getObjectNameKeyProperties, initInternal, isAsyncSupported, setAsyncSupported, setNext, startInternal, stopInternal, toString

Methods inherited from class org.apache.catalina.util.LifecycleMBeanBase

destroyInternal, getDomain, getObjectName, postDeregister, postRegister, preDeregister, preRegister, register, setDomain, unregister

Methods inherited from class org.apache.catalina.util.LifecycleBase

addLifecycleListener, destroy, findLifecycleListeners, fireLifecycleEvent, getState, getStateName, init, removeLifecycleListener, setState, setState, start, stop

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistentValve

public PersistentValve()

Method Detail

setContainer

public void setContainer(Container container)

Description copied from class: ValveBase

Set the Container with which this Valve is associated, if any.

Specified by:

setContainer in interface Contained

Overrides:

setContainer in class ValveBase

Parameters:

container - The new associated container

invoke

public void invoke(Request request,
                   Response response)
            throws IOException,
                   ServletException

Select the appropriate child Context to process this request, based on the specified request URI. If no matching Context can be found, return an appropriate HTTP error.

Parameters:

request - Request to be processed

response - Response to be produced

Throws:

IOException - if an input/output error occurred

ServletException - if a servlet error occurred

isSessionStale

protected boolean isSessionStale(Session session,
                                 long timeNow)

Indicate whether the session has been idle for longer than its expiration date as of the supplied time. FIXME: Probably belongs in the Session class.

Parameters:

session - The session to check

timeNow - The current time to check for

Returns:

true if the session is past its expiration