org.eclnt.jsfserver.util

Class ThreadingFilter

java.lang.Object

org.eclnt.jsfserver.util.CCFilterBase

org.eclnt.jsfserver.util.ThreadingFilter

All Implemented Interfaces:

ICCServerConstants, CLogConstants

public class ThreadingFilter
extends CCFilterBase
implements CLogConstants, ICCServerConstants

Central filter that needs to be in front of the CaptainCasa server side processing. The main function is to serialize requests by their session id - so that within one session only one request is processed at a certain point of time. - Without this filter applications would have to deal with concurrent threads which is "a nightmare" for server side applications.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ThreadingFilter.IExternalRequestProcessing

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	SESSION_ATTRIBUTE_PREVIEW
static java.lang.String	SESSION_ATTRIBUTE_PREVIEW_SESSION
static java.lang.String	SESSION_ATTRIBUTE_PREVIEWPAGENAME
static java.lang.String	SESSION_ATTRIBUTE_STYLE
static java.lang.String	SESSION_ATTRIBUTE_VIEWPORTSIZE

Fields inherited from interface org.eclnt.util.log.CLogConstants

LL_DBG, LL_ERR, LL_INF, LL_WAR

Fields inherited from interface org.eclnt.jsfserver.util.ICCServerConstants

CLIENTJAVATYPE_FX, CLIENTJAVATYPE_SWING, CLIENTTYPE_APPLET, CLIENTTYPE_APPLICATION, CLIENTTYPE_BROWSER, CLIENTTYPE_RISC, CLIENTTYPE_UI5, CLIENTTYPE_WEBSTART, FOCUSSEQUENCE_FIX_PREFIX, QP_SUBPAGEID

Constructor Summary

Constructors

Constructor and Description
ThreadingFilter()

Method Summary

Modifier and Type	Method and Description
static void	checkRequestForNoData(HttpServletRequest request)
void	destroy()
void	doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
void	doFilter(ServletRequest request, ServletResponse response, FilterChain chain, ThreadingFilter.IExternalRequestProcessing externalChainProcessing)
void	init(FilterConfig config)

Methods inherited from class java.lang.Object

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

Field Detail

SESSION_ATTRIBUTE_PREVIEW

public static final java.lang.String SESSION_ATTRIBUTE_PREVIEW

See Also:

Constant Field Values

SESSION_ATTRIBUTE_PREVIEW_SESSION

public static final java.lang.String SESSION_ATTRIBUTE_PREVIEW_SESSION

See Also:

Constant Field Values

SESSION_ATTRIBUTE_STYLE

public static final java.lang.String SESSION_ATTRIBUTE_STYLE

See Also:

Constant Field Values

SESSION_ATTRIBUTE_VIEWPORTSIZE

public static final java.lang.String SESSION_ATTRIBUTE_VIEWPORTSIZE

See Also:

Constant Field Values

SESSION_ATTRIBUTE_PREVIEWPAGENAME

public static final java.lang.String SESSION_ATTRIBUTE_PREVIEWPAGENAME

See Also:

Constant Field Values

Constructor Detail

ThreadingFilter

public ThreadingFilter()

Method Detail

init

public void init(FilterConfig config)
          throws ServletException

Overrides:

init in class CCFilterBase

Throws:

ServletException

doFilter

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

Throws:

java.io.IOException

ServletException

doFilter

public void doFilter(ServletRequest request,
                     ServletResponse response,
                     FilterChain chain,
                     ThreadingFilter.IExternalRequestProcessing externalChainProcessing)
              throws java.io.IOException,
                     ServletException

Throws:

java.io.IOException

ServletException

destroy

public void destroy()

checkRequestForNoData

public static void checkRequestForNoData(HttpServletRequest request)