Redirecting user on login

One of the reader posted a comment, asking how do i redirect user as soon as they login based on some condition, so i changed my SampleExplicitLoginFilter like this

public class SampleExplicitLoginFilter implements ExplicitLoginFilter{

 public void login(HttpServletRequest request, HttpServletResponse response,
   String userId, char[] password, FilterChainContext portalLoginContext, Subject subject,
   String realm, ExplicitLoginFilterChain chain) throws LoginException,
   WSSecurityException, PasswordInvalidException,
   UserIDInvalidException, AuthenticationFailedException,
   AuthenticationException, SystemLoginException,
   com.ibm.portal.auth.exceptions.LoginException {
  System.out.println("Entering SamplExplicitLoginFilter.login()");
  
  System.out.println("User Id " + userId);
  System.out.println("Password " + String.valueOf(password));
  System.out.println("Realm" + realm);

  chain.login(request, response, userId, password, portalLoginContext, subject, realm);
  if(request.getRemoteUser().equals("wasadmin"))
   portalLoginContext.setRedirectURL("/wps/myportal/Administration");
  System.out.println("Exiting SamplExplicitLoginFilter.login()");
 }
 public void destroy() {
 }
 public void init(SecurityFilterConfig arg0)
   throws SecurityFilterInitException {
 }

}

I am checking if the remote user is wasdmin if yes i am redirecting him to /wps/myportal/Administration page.