Earlier this week I had a requirement to interact with the IBM Connections user storage from a servlet running within WebSphere Application Server meaning that I needed to obtain the currently logged in users email address from the username (i.e. the principal name in JEE speak). As I saw it there were three options – 1) reproduce the entire Federated Repositories configuration in the servlet config, 2) use an IBM Connections API if available or 3) try and figure out if there was a WebSphere API for doing it. Option 1 was a clear no-go so I started persuing option 2. Looking into the wiki for IBM Connections I quickly found the User SPI (IBM Connections SPIs) and the description sounded promising: “You can use the IBM® Connections User SPIs to access information about the users in your IBM Connections deployment.”
Wow! Exactly what I needed so I located the lc.spi.jar and added it to my classpath and started coding. An excellent API and easy to understand documentation made it very easy and in a matter of minutes I had the code done. I packaged everything up and deployed the code to WAS and ran the code. Bummer!! All I saw was an Error 500:
Error 500: java.lang.NoClassDefFoundError: com.ibm.ventura.internal.config.exception.VenturaConfigException
Hmmm. Some kind of unsatisfied dependency but which? And an internal one at that… As you know IBM Connections is made up of about a gazillion different JARs but I digged around a bit but after wasting a lot of time on that and being frustrated I gave up I emailed a friend on the IBM Connections product management team. As it turns out the SPI’s (there are multiple: Event, Seedlist, Service and User) is only meant to be used from event handlers where they run in the context of IBM Connections. Bummer. I will try and get that into the documentation as soon as possible to avoid others wasting time on this.
I did find another way which I’ll share later today or tomorrow.