Hi Melania,
I happened to be looking at the Spring annotation-based servlets today.
I committed a change that should allow us to start using @Controller and
@RequestMapping attributes to map Spring servlets into the webapp. The
only examples in our current codebase of this are very simple cases:
opennms-webapp/src/main/java/org/opennms/web/controller/FrontPageController.java
opennms-webapp/src/main/java/org/opennms/web/controller/CategoryStatusController.java
Now that the dispatcher-servlet.xml context has been updated to support
the @RequestMapping annotations, it should be easy to start moving
legacy Spring MVC servlets over to the new annotation-based conventions.
The first priority for me is to move all of the servlets that inherit
from org.springframework.web.servlet.mvc.SimpleFormController since it
was deprecated in Spring 3.0 specifically in favor of using annotations
for your controllers.
Please let us know on this opennms-devel list if you have any questions
about this work! It will be great to move the code over to annotations:
it will make the controller code simpler and much easier to read and
maintain. Thanks!
Seth Leger
The OpenNMS Group
On 07/28/2011 01:42 PM, Melania Galea wrote:
> I am Melania. My google summer of code target is to finish converting the
> OpenNMS GUI pages to Hibernate. For the UI layer refactoring process, the
> SpringMVC web framework was chosen, which due to its underlying MVC design
> pattern offers the possibility to build flexible and loosely coupled
> applications. My mentor and I have managed to create a design for the
> controllers which are meant to process the requests and display a response.
> The controller classes are using annotations and autowired dependency
> injection which leaves out the burden of the xml configuration. They are
> also easily to be unit tested directly. All the logic regarding the requests
> is contained by the controllers since now a Hibernate session is
> automatically opened for all web requests. There will be no need for a
> separate service layer that handles the database queries. I have built a
> wiki page which will be more explanatory regarding the above topics.
>
> http://opennms.org/wiki/Annotation_Driven_Controllers
>
>
>
>
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