wt.session
Class SessionContextDestroyer

java.lang.Object
  wt.session.SessionContextDestroyer

All Implemented Interfaces:

EventListener, javax.servlet.Filter, Filter, javax.servlet.http.HttpSessionListener

public class SessionContextDestroyer

extends Object

implements javax.servlet.http.HttpSessionListener, javax.servlet.Filter, Filter

Field Summary

private static String	SERVLET_CONTEXT_BASE_KEY
private static String	SESSION_BASE_KEY
private static String	SESSION_REMOTE_HOST_KEY

Constructor Summary

SessionContextDestroyer()

Method Summary

void	destroy() Called when instance of usage of a given filter instance has completed.
void	doFilter(javax.servlet.ServletRequest servletRequest, javax.servlet.ServletResponse servletResponse, javax.servlet.FilterChain filterChain)
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, FilterChain chain) Primary method of Filter.
private static void	doFilterInternal(javax.servlet.ServletRequest servletRequest, javax.servlet.ServletResponse servletResponse, javax.servlet.FilterChain filterChain)
private static String	getRemoteHost(javax.servlet.http.HttpSession session)
private static String	getServletContextKey(javax.servlet.http.HttpSession session)
void	init(javax.servlet.FilterConfig filterConfig)
void	init(FilterConfig filterConfig) Called once after instantiation but before doFilter() is called for a given Filter instance.
private static void	initInternal(javax.servlet.FilterConfig filterConfig)
private static void	rememberRemoteHost(javax.servlet.http.HttpSession session, String remoteHost)
private static boolean	sessionAttrsStayDuringDestroy(javax.servlet.ServletContext servletContext)
void	sessionCreated(javax.servlet.http.HttpSessionEvent httpSessionEvent)
void	sessionDestroyed(javax.servlet.http.HttpSessionEvent httpSessionEvent)

Methods inherited from class java.lang.Object

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

Field Detail

SESSION_BASE_KEY

private static final String SESSION_BASE_KEY

See Also:

Constant Field Values

SESSION_REMOTE_HOST_KEY

private static final String SESSION_REMOTE_HOST_KEY

See Also:

Constant Field Values

SERVLET_CONTEXT_BASE_KEY

private static final String SERVLET_CONTEXT_BASE_KEY

See Also:

Constant Field Values

Constructor Detail

SessionContextDestroyer

public SessionContextDestroyer()

Method Detail

sessionCreated

public void sessionCreated(javax.servlet.http.HttpSessionEvent httpSessionEvent)

Specified by:

sessionCreated in interface javax.servlet.http.HttpSessionListener

sessionDestroyed

public void sessionDestroyed(javax.servlet.http.HttpSessionEvent httpSessionEvent)

Specified by:

sessionDestroyed in interface javax.servlet.http.HttpSessionListener

getRemoteHost

private static String getRemoteHost(javax.servlet.http.HttpSession session)

rememberRemoteHost

private static void rememberRemoteHost(javax.servlet.http.HttpSession session,
                                       String remoteHost)

getServletContextKey

private static String getServletContextKey(javax.servlet.http.HttpSession session)

sessionAttrsStayDuringDestroy

private static boolean sessionAttrsStayDuringDestroy(javax.servlet.ServletContext servletContext)

doFilter

public void doFilter(javax.servlet.ServletRequest servletRequest,
                     javax.servlet.ServletResponse servletResponse,
                     javax.servlet.FilterChain filterChain)
              throws IOException,
                     javax.servlet.ServletException

Specified by:

doFilter in interface javax.servlet.Filter

Throws:

IOException

javax.servlet.ServletException

doFilterInternal

private static void doFilterInternal(javax.servlet.ServletRequest servletRequest,
                                     javax.servlet.ServletResponse servletResponse,
                                     javax.servlet.FilterChain filterChain)
                              throws IOException,
                                     javax.servlet.ServletException

Throws:

IOException

javax.servlet.ServletException

init

public void init(javax.servlet.FilterConfig filterConfig)
          throws javax.servlet.ServletException

Specified by:

init in interface javax.servlet.Filter

Throws:

javax.servlet.ServletException

initInternal

private static void initInternal(javax.servlet.FilterConfig filterConfig)
                          throws javax.servlet.ServletException

Throws:

javax.servlet.ServletException

destroy

public void destroy()

Description copied from interface: Filter

Called when instance of usage of a given filter instance has completed.

Specified by:

destroy in interface javax.servlet.Filter

doFilter

public void doFilter(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     FilterChain chain)
              throws IOException,
                     javax.servlet.ServletException

Description copied from interface: Filter

Primary method of Filter. Called to filter an incoming request. The filter may handle the request entirely on its own or pass it on to the next filter in the chain (note the tail of the chain includes the original servlet) by calling chain.doFilter().

Specified by:

doFilter in interface Filter

Parameters:

request - the incoming request

response - the outgoing response

chain - the chain of filters after this one including the original servlet

Throws:

IOException - thrown upon IO problems

javax.servlet.ServletException - thrown upon other checked-exception problems

init

public void init(FilterConfig filterConfig)
          throws javax.servlet.ServletException

Description copied from interface: Filter

Called once after instantiation but before doFilter() is called for a given Filter instance.

Specified by:

init in interface Filter

Parameters:

filterConfig - information about the filter and configuration parameters

Throws:

javax.servlet.ServletException - thrown upon encountering checked-exception sorts of problems