SocialAuthenticationFilter sample forthcoming
There has been a great deal of interest in the new SocialAuthenticationFilter (SAF) work that was started by Yuan Ji and that I'm now polishing and preparing for a milestone release (hopefully this week). I've received many questions about it, including several via private email.
Understandably, this is a popular bit of work. SAF will solve the same problem as ProviderSignInController (PSIC)--that is, offering sign-in-with-provider functionality. It will do this with tighter integration to Spring Security, as part of Spring Security's filter chain. ProviderSignInController, on the other hand, will work with Spring Security (as it always has), but will be flexible enough to work with security mechanisms other than Spring Security.
Be aware that I have a modified Spring Social Showcase sample that uses SAF instead of ProviderSignInController in a local branch. I'm planning to share that on GitHub soon and hopefully that will clear things up. Since this is still a work in progress, I'm hesitant to push it yet, for fear that it may create more questions than it answers. But know that it should be there sometime soon. I'll follow up on this thread when it's available.
Spring Social Project Lead