can I check what are Users online or offline in xpert ivy use IUSER ?

I don't think that this will work directly by using Iuser.

I've two possibilities how I would do that.

1) Get all the Sessions that are oppened on the securityContext and read the users which has this sessions created.

List<iuser> userList = new ArrayList<iuser>(); for (ISession s : Ivy.session().getSecurityContext().getSessions()){ userList.add(s.getSessionUser()); }

2) Set a property on the users when they login. Then get all Users from the SecurtiyContext and check the property for each user.

iuser.setProperty("login", "true");

The following script only returns all sessions of the current cluster node:

ivy.session.getSecurityContext().getSessions()

To get a list of all users that are online on any cluster node of a Xpert.ivy Enterprise Server use the following code:

import ch.ivyteam.ivy.security.SessionInfo;

List<String> onlineUsers;
for (SessionInfo sessionInfo : ivy.session.getSecurityContext().getClusterSessionsSnapshot().getSessionInfos())
{
    if (!sessionInfo.isSessionUserUnknown())
    {
        if (!onlineUsers.contains(sessionInfo.getSessionUserName()))
        {
            onlineUsers.add(sessionInfo.getSessionUserName());
        }
    }
}