org.riotfamily.cachius.support
Class SessionCreationPreventingRequestWrapper

java.lang.Object
  javax.servlet.ServletRequestWrapper
      javax.servlet.http.HttpServletRequestWrapper
          org.riotfamily.cachius.support.SessionCreationPreventingRequestWrapper

All Implemented Interfaces:

HttpServletRequest, ServletRequest

public class SessionCreationPreventingRequestWrapper
extends HttpServletRequestWrapper

HttpServletRequestWrapper that prevents the creation of new HTTP sessions. An IllegalStateException is thrown when getSession() or getSession(true) is invoked and no session existed at the time the wrapper was created.

Rationale: Cachius supports the caching of snippets that use URL rewriting for session tracking. It therefore stores two versions (one with rewritten URLs and one without) under different cache keys. Hence Cachius must know whether URL rewriting is used before a CacheItem is retrieved or created. This implies that cachable snippets must not create new sessions.

Since:

6.5

Author:

Felix Gnass [fgnass at neteye dot de]

Field Summary

Fields inherited from interface javax.servlet.http.HttpServletRequest

BASIC_AUTH, CLIENT_CERT_AUTH, DIGEST_AUTH, FORM_AUTH

Constructor Summary

SessionCreationPreventingRequestWrapper(HttpServletRequest request)

Method Summary

HttpSession	getSession()
HttpSession	getSession(boolean create)

Methods inherited from class javax.servlet.http.HttpServletRequestWrapper

getAuthType, getContextPath, getCookies, getDateHeader, getHeader, getHeaderNames, getHeaders, getIntHeader, getMethod, getPathInfo, getPathTranslated, getQueryString, getRemoteUser, getRequestedSessionId, getRequestURI, getRequestURL, getServletPath, getUserPrincipal, isRequestedSessionIdFromCookie, isRequestedSessionIdFromUrl, isRequestedSessionIdFromURL, isRequestedSessionIdValid, isUserInRole

Methods inherited from class javax.servlet.ServletRequestWrapper

getAttribute, getAttributeNames, getCharacterEncoding, getContentLength, getContentType, getInputStream, getLocalAddr, getLocale, getLocales, getLocalName, getLocalPort, getParameter, getParameterMap, getParameterNames, getParameterValues, getProtocol, getReader, getRealPath, getRemoteAddr, getRemoteHost, getRemotePort, getRequest, getRequestDispatcher, getScheme, getServerName, getServerPort, isSecure, removeAttribute, setAttribute, setCharacterEncoding, setRequest

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.servlet.ServletRequest

getAttribute, getAttributeNames, getCharacterEncoding, getContentLength, getContentType, getInputStream, getLocalAddr, getLocale, getLocales, getLocalName, getLocalPort, getParameter, getParameterMap, getParameterNames, getParameterValues, getProtocol, getReader, getRealPath, getRemoteAddr, getRemoteHost, getRemotePort, getRequestDispatcher, getScheme, getServerName, getServerPort, isSecure, removeAttribute, setAttribute, setCharacterEncoding

Constructor Detail

SessionCreationPreventingRequestWrapper

public SessionCreationPreventingRequestWrapper(HttpServletRequest request)

Method Detail

getSession

public HttpSession getSession()

Specified by:

getSession in interface HttpServletRequest

Overrides:

getSession in class HttpServletRequestWrapper

getSession

public HttpSession getSession(boolean create)

Specified by:

getSession in interface HttpServletRequest

Overrides:

getSession in class HttpServletRequestWrapper