org.apache.catalina.session

Class StandardManager

java.lang.Object

org.apache.catalina.util.LifecycleBase

org.apache.catalina.util.LifecycleMBeanBase

org.apache.catalina.session.ManagerBase

org.apache.catalina.session.StandardManager

All Implemented Interfaces:

MBeanRegistration, JmxEnabled, Lifecycle, Manager

public class StandardManager
extends ManagerBase

Standard implementation of the Manager interface that provides simple session persistence across restarts of this component (such as when the entire server is shut down and restarted, or when a particular web application is reloaded.

IMPLEMENTATION NOTE: Correct behavior of session storing and reloading depends upon external calls to the start() and stop() methods of this class at the correct times.

Author:

Craig R. McClanahan

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.catalina.session.ManagerBase

ManagerBase.SessionTiming

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

Lifecycle.SingleUse

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	name The descriptive name of this Manager implementation (for logging).
protected String	pathname Path name of the disk file in which active sessions are saved when we stop, and from which these sessions are loaded when we start.

Fields inherited from class org.apache.catalina.session.ManagerBase

duplicates, expiredSessions, maxActive, maxActiveSessions, processExpiresFrequency, processingTime, rejectedSessions, secureRandomAlgorithm, secureRandomClass, secureRandomProvider, sessionCounter, sessionCreationTiming, sessionExpirationTiming, sessionIdGenerator, sessionIdGeneratorClass, sessionMaxAliveTime, sessions, sm, support, TIMING_STATS_CACHE_SIZE

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
StandardManager()

Method Summary

Modifier and Type	Method and Description
protected void	doLoad() Load any currently active sessions that were previously unloaded to the appropriate persistence mechanism, if any.
protected void	doUnload() Save any currently active sessions in the appropriate persistence mechanism, if any.
protected File	file() Return a File object representing the pathname to our persistence file, if any.
String	getName()
String	getPathname()
void	load() Load any currently active sessions that were previously unloaded to the appropriate persistence mechanism, if any.
void	setPathname(String pathname) Set the session persistence pathname to the specified value.
protected void	startInternal() Start this component and implement the requirements of LifecycleBase.startInternal().
protected void	stopInternal() Stop this component and implement the requirements of LifecycleBase.stopInternal().
void	unload() Save any currently active sessions in the appropriate persistence mechanism, if any.

Methods inherited from class org.apache.catalina.session.ManagerBase

add, addPropertyChangeListener, backgroundProcess, changeSessionId, changeSessionId, changeSessionId, createEmptySession, createSession, expireSession, findSession, findSessions, generateSessionId, getActiveSessions, getClassName, getContext, getCreationTime, getCreationTimestamp, getDomainInternal, getDuplicates, getEngine, getExpiredSessions, getJvmRoute, getLastAccessedTime, getLastAccessedTimestamp, getMaxActive, getMaxActiveSessions, getNewSession, getObjectNameKeyProperties, getProcessExpiresFrequency, getProcessingTime, getRejectedSessions, getSecureRandomAlgorithm, getSecureRandomClass, getSecureRandomProvider, getSession, getSessionAttribute, getSessionAttributeNameFilter, getSessionAttributeNamePattern, getSessionAttributeValueClassNameFilter, getSessionAttributeValueClassNamePattern, getSessionAverageAliveTime, getSessionCounter, getSessionCreateRate, getSessionExpireRate, getSessionIdGenerator, getSessionMaxAliveTime, getThisAccessedTime, getThisAccessedTimestamp, getWarnOnSessionAttributeFilterFailure, initInternal, listSessionIds, processExpires, remove, remove, removePropertyChangeListener, setContext, setDuplicates, setExpiredSessions, setMaxActive, setMaxActiveSessions, setProcessExpiresFrequency, setProcessingTime, setSecureRandomAlgorithm, setSecureRandomClass, setSecureRandomProvider, setSessionAttributeNameFilter, setSessionAttributeValueClassNameFilter, setSessionCounter, setSessionIdGenerator, setSessionMaxAliveTime, setWarnOnSessionAttributeFilterFailure, toString, updateSessionMaxAliveTime, willAttributeDistribute

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

Field Detail

name

protected static final String name

The descriptive name of this Manager implementation (for logging).

See Also:

Constant Field Values

pathname

protected String pathname

Path name of the disk file in which active sessions are saved when we stop, and from which these sessions are loaded when we start. A null value indicates that no persistence is desired. If this pathname is relative, it will be resolved against the temporary working directory provided by our context, available via the javax.servlet.context.tempdir context attribute.

Constructor Detail

StandardManager

public StandardManager()

Method Detail

getName

public String getName()

Overrides:

getName in class ManagerBase

Returns:

The descriptive short name of this Manager implementation.

getPathname

public String getPathname()

Returns:

The session persistence pathname, if any.

setPathname

public void setPathname(String pathname)

Set the session persistence pathname to the specified value. If no persistence support is desired, set the pathname to null.

Parameters:

pathname - New session persistence pathname

load

public void load()
          throws ClassNotFoundException,
                 IOException

Description copied from interface: Manager

Load any currently active sessions that were previously unloaded to the appropriate persistence mechanism, if any. If persistence is not supported, this method returns without doing anything.

Throws:

ClassNotFoundException - if a serialized class cannot be found during the reload

IOException - if an input/output error occurs

doLoad

protected void doLoad()
               throws ClassNotFoundException,
                      IOException

Load any currently active sessions that were previously unloaded to the appropriate persistence mechanism, if any. If persistence is not supported, this method returns without doing anything.

Throws:

ClassNotFoundException - if a serialized class cannot be found during the reload

IOException - if an input/output error occurs

unload

public void unload()
            throws IOException

Description copied from interface: Manager

Save any currently active sessions in the appropriate persistence mechanism, if any. If persistence is not supported, this method returns without doing anything.

Throws:

IOException - if an input/output error occurs

doUnload

protected void doUnload()
                 throws IOException

Save any currently active sessions in the appropriate persistence mechanism, if any. If persistence is not supported, this method returns without doing anything.

Throws:

IOException - if an input/output error occurs

startInternal

protected void startInternal()
                      throws LifecycleException

Start this component and implement the requirements of LifecycleBase.startInternal().

Overrides:

startInternal in class ManagerBase

Throws:

LifecycleException - if this component detects a fatal error that prevents this component from being used

stopInternal

protected void stopInternal()
                     throws LifecycleException

Stop this component and implement the requirements of LifecycleBase.stopInternal().

Overrides:

stopInternal in class ManagerBase

Throws:

LifecycleException - if this component detects a fatal error that prevents this component from being used

file

protected File file()

Return a File object representing the pathname to our persistence file, if any.

Returns:

the file