Was just wondering at the current point in time, what is a good combination of tools/frameworks/libraries for implementing a REST API on top of J2EE that integrates to a backend RDB and using OpenID for authentication.
What I am looking to implement is a server component that provides a set of services, all of which will utilise OpenID authentication, and the services will retrieve or update information to/from a backend relational database environment.
What I'm interested in are:
* application server options available (e.g. Tomcat, Glassfish etc.)
* IDE's (e.g. Eclipse, Netbeans, IntelliJ etc.)
* additional components useful for implementing REST (and JSON payloads)
* what is best practice/good technique/options available for database integration from the services (hibernate via spring, hibernate directly, raw jdbc connections ... )
* for integrating authentication via OpenID - what is an appropriate integration point for any custom authentication mechanism within the J2EE environment - are there any commonly used solutions/plug-ins available for OpenId etc.
Also any pointers to good, current tutorials, books etc.
Edit: Unfortunately I haven't had as much time to research the results to this question as I'd have liked.
At this stage I've found that installing/setting up REST with Jersey was very quick and I believe I can use a ContainerRequestFilter to provide the OpenID support as per the article here: http://plaincode.blogspot.com/2011/07/openid-authentication-example-in-jersey.html
I intend on using OpenId4Java for the OpenId support, with the PAPE extensions to get users email address returned. I don't need OAuth as I don't need to access any of the users other OpenID details or info on their OpenID site from my server app.
I've had a look at the latest Spring, it looks very good and if I were needing to build a web client with my solution, or had more time to look at both, I could easily have ended up leaning that way.
Thanks for the good answers and replies, hard to pick a single correct answer. I've accepted yves answer because it is correct and the way I'm going at the moment with minimal time to research properly, but awarded the bounty to cfontes answer, as it is also correct, and he's replied with additional information and justification.
Make it simple and modern (Spring is neither one nor the other for RESTful web-services):
Take a look at this project on GitHub, it produces JSON from static data. Its web.xml and ProductResource are good places to start.
I would go for
This can help you decide which Persistence provider you want : Persistence Provider comparison I would go for Hibernate, because it have a lot of great features like Criteria API, hibernate Search and it's widely used.
Of course your app should be using JPA 2 for the sake of interchangeability instead of using a Persistence provider directly ( it's not easy to chance from one to another but with JPA2 it's possible, also should be giving you a lot of trouble but it's possible)
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