org.talika.tarsis.filters.validator
Class ExtendedValidatorFilter

java.lang.Object
  org.talika.tarsis.filters.AbstractFilter
      org.talika.tarsis.filters.CommandFilter
          org.talika.tarsis.filters.validator.ValidatorFilter
              org.talika.tarsis.filters.validator.ExtendedValidatorFilter

All Implemented Interfaces:

javax.servlet.Filter

public class ExtendedValidatorFilter
extends ValidatorFilter

Experimental extended validator filter. Work in progress.

Version:

$Revision: 269 $

Author:

Jose M. Palomar

Constructor Summary

ExtendedValidatorFilter()

Method Summary

void	destroy() Called by the web container to indicate to a filter that it is being taken out of service.
void	doFilter(javax.servlet.ServletRequest servletRequest, javax.servlet.ServletResponse servletResponse, javax.servlet.FilterChain filterChain) Validates command parameters sent in client's request.
protected HistoricRequest	getHistory(javax.servlet.ServletRequest request) Retrieves client's request from request history.
void	init(javax.servlet.FilterConfig filterConfig) Called by the web container to indicate to a filter that it is being placed into service.
protected void	putHistory(javax.servlet.ServletRequest request) Stores client's request in request history.

Methods inherited from class org.talika.tarsis.filters.validator.ValidatorFilter

checkRequired, getMultipleParameter, getParameter, validate

Methods inherited from class org.talika.tarsis.filters.CommandFilter

findCommand, getCommandFactory

Methods inherited from class org.talika.tarsis.filters.AbstractFilter

getContext, getFilterConfig, getLogger

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtendedValidatorFilter

public ExtendedValidatorFilter()

Method Detail

init

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

Called by the web container to indicate to a filter that it is being placed into service.

Initialization consits in calling super init method and storing in a local variable history size parameter for further use.

Specified by:

init in interface javax.servlet.Filter

Overrides:

init in class CommandFilter

Parameters:

filterConfig - FilterConfig filter configutarion.

Throws:

javax.servlet.ServletException - if an exception has occurred that interferes with the filter's normal operation

See Also:

Filter.init(FilterConfig)

destroy

public void destroy()

Called by the web container to indicate to a filter that it is being taken out of service.

Specified by:

destroy in interface javax.servlet.Filter

Overrides:

destroy in class CommandFilter

See Also:

Filter.destroy()

doFilter

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

Validates command parameters sent in client's request.

Specified by:

doFilter in interface javax.servlet.Filter

Overrides:

doFilter in class ValidatorFilter

Parameters:

servletRequest - ServletRequest the ServletRequest object that contains the client's request.

servletResponse - ServletResponse the ServletResponse object that contains the servlet's response.

filterChain - FilterChain invocation chain of filtered request.

Throws:

java.io.IOException - if an input or output exception occurs

javax.servlet.ServletException - if an exception has occurred that interferes with the filter's normal operation

See Also:

Filter.doFilter(ServletRequest, ServletResponse, FilterChain)

putHistory

protected void putHistory(javax.servlet.ServletRequest request)

Stores client's request in request history.

Parameters:

request - ServletRequest client's request.

getHistory

protected HistoricRequest getHistory(javax.servlet.ServletRequest request)

Retrieves client's request from request history.

Parameters:

request - ServletRequest client'r request.

Returns:

HistoricRequest hitoric client's request.