velosurf.validation
Class ValidationFilter

java.lang.Object
  velosurf.validation.ValidationFilter

All Implemented Interfaces:

javax.servlet.Filter

public class ValidationFilter
extends java.lang.Object
implements javax.servlet.Filter

This class is an optional filter that will validate query data according to the velosurf.entity query parameter (may be multivalued). If data pass all validation constraints, the filter will let the request pass towards the form action. Otherwise, it will redirect back the user to the original form (using the referer query header). In this case, the filter will populate the session with the given values (escaped) so that they can be put back in the form.

Field Summary

private javax.servlet.FilterConfig	config filter config
private static java.lang.String	ENTITY_KEY key used to identity an entity to be validated in HTTP parameters

Constructor Summary

ValidationFilter()

Method Summary

void	destroy() Destroy the filter.
void	doFilter(javax.servlet.ServletRequest servletRequest, javax.servlet.ServletResponse servletResponse, javax.servlet.FilterChain filterChain) Filtering.
void	init(javax.servlet.FilterConfig filterConfig) initialization.

Methods inherited from class java.lang.Object

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

Field Detail

config

private javax.servlet.FilterConfig config

filter config

ENTITY_KEY

private static final java.lang.String ENTITY_KEY

key used to identity an entity to be validated in HTTP parameters

See Also:

Constant Field Values

Constructor Detail

ValidationFilter

public ValidationFilter()

Method Detail

init

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

initialization.

Specified by:

init in interface javax.servlet.Filter

Parameters:

filterConfig - filter config

Throws:

javax.servlet.ServletException

doFilter

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

Filtering.

Specified by:

doFilter in interface javax.servlet.Filter

Parameters:

servletRequest - request

servletResponse - response

filterChain - filter chain

Throws:

java.io.IOException

javax.servlet.ServletException

destroy

public void destroy()

Destroy the filter.

Specified by:

destroy in interface javax.servlet.Filter