@RequestMapping overriding

[drjolo]

Hello all!

It's my first post at this forum, so I'd like to welcome everyone
Currently we are developing kind-of addon/plugin functionality for our system based on Spring 3.1. One of its function would be the possibility to override existing controller with another one with the same request mapping. So for example we have:

@Controller
@RequestMapping(value = "/login")
public class LoginPageController extends AbstractLoginPageController
{
	@RequestMapping(method = RequestMethod.GET)
	public String doLogin(final HttpServletRequest request, final HttpServletResponse response, final HttpSession session)
	{
		...
	}
}

and in the addon we would like to have:

@Controller
@RequestMapping(value = "/login")
public class AddonLoginPageController
{
	@RequestMapping(method = RequestMethod.GET)
	public String doLogin(final HttpServletRequest request, final HttpServletResponse response, final HttpSession session)
	{
		...
	}
}

Is there any way to achieve it? Currently all my efforts ends with ambiguous mapping error:

ERROR [WrapperSimpleAppMain] [ContextLoader] Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.method.annotation.RequestM
appingHandlerMapping#0': Initialization of bean failed; nested exception is java.lang.IllegalStateException: Ambiguous mapping found. Cannot map 'de.h
ybris.platform.addons.addtld.controllers.AddonLoginPageController#0' bean method
public java.lang.String de.hybris.platform.addons.addtld.controllers.AddonLoginPageController.doLogin(java.lang.String,boolean,org.springframework.ui.
Model,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,javax.servlet.http.HttpSession)
to {[/login],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}: There is already 'loginPageController' bean method
public java.lang.String de.hybris.platform.yacceleratorstorefront.controllers.pages.LoginPageController.doLogin(java.lang.String,boolean,org.springfra
mework.ui.Model,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,javax.servlet.http.HttpSession) throws de.hybris.platform
.cms2.exceptions.CMSItemNotFoundException mapped.

I think one approach could be to override the mapping, another to override the actual controller bean, but have not succeeded yet
Thanks in advance for any ideas!

[Marten Deinum]

As you already noticed with the default provided classes that isn't possible,you would have to create your own (sub)class for a HandlerMapping implementation.