[vbox-dev] Help with sessions

[Nikolay Igotti]

     Hi Lucas,


 First of all, please keep in mind that for next major release there 
will be significant rework of both session API and
the way it's accessed from Java. Having said that, with 3.x  approach, 
which is, indeed not very straightforward,
openRemoteSession() API is just a way start a new VM, so it's not 
possible to use one remote session to start several VMs -
you have to openRemoteSession() for every VM you want to start.
Please refer to SDK documentation, and vboxshell.py TUI example (while 
in Python, patterns of API usage is the same).

 
 Hope that will help,
    Nikolay


Lucas Charles wrote:
> Hello everyone,
>
> I'm stuck with a problem related to the sdk for java-ws.
> I want to manage several machines on a given host from my java client.
>
> I need to start vms 
> Take snapshots of the one I started at given intervals.
> After a new boot I need to restore the machines to their latest snapshot.
> Start them and redo snapshots.
>
> The problem I'm facing is how to open sessions.
>
> Yet I'm starting the vms by calling
> ------
>
> IWebsessionManager mgr;
>
> IVirtualBox vbox
>
> mgr = new IWebsessionManager("http://localhost:18083");
>
> vbox = mgr.logon("", "");
>
> ISession session = mgr.getSessionObject(vbox);
>
> IProgress prog = vbox.openRemoteSession(session, 
> machineToStart.getId(), "gui", "");
>
> prog.waitForCompletion(-1);
>
> -----
>
> Isn't it a problem to call openRemoteSession with the session I got 
> from IWebSessionManager::getSessiontObject() ?
> Because I then use only one session to start several vms.
>
> My next question is when I want to take snapshots of every machines I 
> have in charge.
>
> Which session object should I use to get the IConsole ?
> Can/Must I reuse the one I used upon calling openRemoteSession() ? 
> Reusing seems to work, if I control only one machine but fails with 
> more than one.
>
> Best Regard,
> Lucas Charles
> ------------------------------------------------------------------------
>
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