What is a good embeddable Java LDAP server?

Question

I\'m working on a Java web application that integrates with a few other external applications that are deployed along with it. Authentication information must be synchronize

Answer 1

I've just spent a couple of days looking into exposing our internal application user db as an LDAP service. I looked initially at apache-ds, while it seems to be a very powerful directory service extending it to expose a relational db is mind numbingly complex.

Have settled on penrose as it seems to offer a pretty good solution, managed to prototype a solution in about 2 hours.

Answer 2

As this question has been unanswered for quite some time, I'd like to suggest that you also take the commercial license of Penrose into account - it's got a dual license for people just like you, when the GPL implications are prohibitive. I don't know their prices and model, but it might be easier and cheaper to go with a solution that you already know than to get used to another solution that you need to get used to. You can either pay with your money or with your time...

Also - for the records, not applying in this case: When projects use the GPL and you'd like to embed them in a non-GPL way, it might pay to ask the developers for a more permissive license. Some people publish under GPL not thinking about the implications. You might get them to changing the license if this means broader usage of the project. Others specifically want the GPL-implications, but it's always good to ask. Penrose has already thought about this and offers a commercial license.

Answer 3

You should take a look at Apache DS. I just started using it as an embedded server to setup a JUnit test. It's working good so far, the only thing stopping me right now is my limited LDAP knowledge. ApacheDS looks like a decent project and I think it's worth the effort.

Answer 4

I've never done it myself, but you can use Spring Security to easily set up an embedded Apache Directory server, with minimal Spring XML config required.