BookMark Redirection using AOP-Spring interceptor - spring-mvc

Question

I was trying to write an interceptor using spring AOP.The interceptor will find if a request URL is a bookmark,if so will redirect to the authentication page.
Code Snippet:
public Object invoke(MethodInvocation invocation) throws Throwable {
logger.entering(this.getClass().getSimpleName(), "invoke", invocation);
Object result = null;
try {
// Logic to exclude the beans as per the list in the configuration.
boolean excluded = false;
for (String excludebean : excludedBeans) {
if (excludebean != null && excludebean.equalsIgnoreCase(invocation.getThis().getClass().getSimpleName())) {
excluded = true;
break;
}
}
// If the Target Method is "toString", then set EXCLUDE to TRUE and process the request
if(excluded == false && invocation.getMethod().getName().equalsIgnoreCase("toString"))
{
excluded = true;
}
// if user session object is available, then process the request or
// else forward to the configured view.
if (excluded || getSessionHolder().getUserVO() != null) {
result = invocation.proceed();
}
else {
logger.logp(Level.INFO, this.getClass().getSimpleName(),
"invoke(MethodInvocation)", "User Object is "+ getSessionHolder().getUserVO()
+ ". So redirecting user to home page");
result = new ModelAndView("redirect:/security/authenticate.do");
}
}
catch (Throwable ex) {
throw ex;
}
logger.exiting(this.getClass().getSimpleName(), "invoke");
return result;
}
When I debug the control comes inside the else block as expected but after I return the result,control goes to the handle method for the bookmarked URl ratehr than the handler for the redirect view.
Pls help me on this..Thanks in advance.

Answer 1

Why Do you need AOP for the interceptor. You can redirect easily using Regular interceptor.
public class RedirectInterceptor extends HandlerInterceptorAdapter{
private String redirectMapping;
public void setRedirectMapping(String redirectMapping) {
this.redirectMapping = **maintenanceMapping**;
}
//before the actual handler will be executed
public boolean preHandle(HttpServletRequest request,
HttpServletResponse response, Object handler)
throws Exception {
if (somethingHappened){
response.sendRedirect(redirectMapping);
return false;
} else
return true;
}
}