Grouper Users - Open Discussion List

[Tom Zeller <>]

>> I haven’t really discovered a consistent pattern that would help me to
>> understand the proper ways to use sessions.
>
> Anyways, as a rule you should start a GrouperSession as who you want to act
> as, either a regular subject or GrouperSystem.
>
> Another complication is things are only well defined for the UI, WS, and
> client.  The API is a free-for-all, which is why you are confused...

I, too, have wondered how to use grouper sessions properly in the API.

The data connector plugins for the shibboleth attribute resolver
re-use a private GrouperSession instance per DataConnector, which then
uses callbacks :

public class SomethingThatUsesSessions {

   private GrouperSession grouperSession;

   public GrouperSession getGrouperSession() throws {
     if (grouperSession == null) {
        grouperSession = GrouperSession.start(subject, false);
     }
     return grouperSession;
   }

   public void doSomething() {
      GrouperSession.callbackGrouperSession(
        getGrouperSession(), new GrouperSessionHandler() {
          public void callback(GrouperSession grouperSession) throws
GrouperSessionException {
             ...do something...

I chose not to use ThreadLocals because each class using a
GrouperSession may have a different subject, i.e. a different user.

TomZ