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Re: [grouper-users] starting out with grouper

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  • From: "GW Brown, Information Systems and Computing" <>
  • To: ,
  • Subject: Re: [grouper-users] starting out with grouper
  • Date: Tue, 12 Sep 2006 13:13:30 +0100

Hi Caleb,

If you have an existing LDAP directory then using the JNDI source adapter is the best way of making your users available to Grouper. A sample configuration should be commented out in sources.xml. Documentation is available at:


--On 12 September 2006 07:56 -0400



Apologies if this message is recieved twice sympa appears to dislike my
adress alternating between and so i am using
the web based posting feature.

I'm starting out with grouper and the first thing that I am struggling
with is to see is how I start out using it with my userbase. Are there
any guides on how to use grouper with a large userbase (73k users)? I've
looked at the documentation and I can see how to bootstrap the wheel
group [1] and I can see some example code for adding a user [2].

However I'm a bit confused as to how I best to bulk add users. Should I
write something based on the AddLocalSubject code[2], or should I be
using the import tool [3] and figuring out how to get my userbase into an
xml file? Or should I be looking at some kind of integration with
existing ldap stores via the subject API and Source interface [4]?

I have already deployed shibboleth login and can propagate that to tomcat
so the authentication angle is sorted.

If anyone is looking for use cases my use case is that I need to have a
group that identifies both medical staff and students. Medical students
can easily be identified by querying a course databases to see who is on
a medical course. Medical staff have to be registered by hand after a
conversation with a medical librarian, the purpose of the conversation is
to see if they are a medic and may involve looking at their contract.
Once a user is identified as "medical" they can look at autopsy videos
held outside the institute [5] and accessed via shibboleth. This looks
like the kind of problem that grouper aims to solve. I have many more
potential usecases and see grouper as potentially a useful service for
the entire campus.


Caleb Racey
Newcastle University

de+to+the+Grouper+API+v1.0 [2]
kup [3]

GW Brown, Information Systems and Computing

  • starting out with grouper, caleb . racey, 09/12/2006
    • Re: [grouper-users] starting out with grouper, GW Brown, Information Systems and Computing, 09/12/2006

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