On 19.12.2013 16:47, Zieris, Franz wrote:
Hi Nils,
> Adding projects while a session is running is problematic, therefore
it must be done in advance.
In advance of what? In a normal Saros session, projects are always
added to running session (i.e. after the SessionNegotiation, see here
http://www.saros-project.org/userStates).
Well yes, but ONLY the host can do that without errors or unwanted side
effects.
> (Right now I see no case in which the server would refuse the files
but I'd like to be prepared. Tell me if you think this is unnecessary.)
As you said: If there /is no case/ you could think of, don't implement
it (keep it simple, you ain't gonna need it, and so on). The best you
can do is the following: In case you see more than one possible way to
implement the functionality that is currently wanted, and you want to
consider future decisions, than you should choose the solution that
makes it easier to adapt if actually necessary. (Rather theoretical, I
know -- the simple answer is, again, YAGNI).
> 1. Make the project negotiation available, when no session is
running. (Shouldn't be too much work)
Meh, ... no. See above: Patrick Schlott introduced the UserStates for
a reason. Don't be the first to break these newly introduced rules.
Franz he will not break only rules as this is a plain file transfer. The
sharing will start afterwards with the files that were transmitted.
E.g: Bob sends Alice project Foo. Alice stores project Foo as Bar in
directory Foobar. Now Alice starts sharing project Foo, maybe starting a
session first.
The only thing Nils have to handle are multiple requests at the same time.
> 2. Automate the server side (IncomingProjectNegotiation, possibly a
little more work).
This sounds reasonable for the scope of your endeavor/your thesis.
Franz
*From:*Nils Bussas [mailto:nils.bus...@gmail.com]
*Sent:* Thursday, December 19, 2013 3:40 PM
*To:* dpp-devel@lists.sourceforge.net
*Subject:* [DPP-Devel] Send files to server before session start
Hey guys,
I'm currently implementing a Saros server (in form of adding it as a
new feature to the regular Saros). My next step is to make it possible
for the client to send projects (or single files) to the server, so
that the server can use these when it invites others into the session.
Adding projects while a session is running is problematic, therefore
it must be done in advance.
When this happens, the server has already agreed that it will start a
session for the client that is going to send the files.
I'm not really sure how to do this, so I'd like to have your opinion.
The server should be able to accept or decline the files, therefore
the file list should be sent before the files. (Right now I see no
case in which the server would refuse the files but I'd like to be
prepared. Tell me if you think this is unnecessary.)
When the files are sent, the server will overwrite a local version of
the same project if it already exists. (At the moment the server can
only support one session at a time, so no session can be running that
include the files. (This may/will change in the future and there are
multiple ways to solve the conflicts that appear when two sessions
want to work on the same project. I don't intend to decide that in my
thesis.))
I think it woud be to much (unnecessary) work to implement all this
from scratch when it already exists.
The project negotiation does pretty much what I need (send file list,
accept/refuse files, choose where to save them, save them). I would
only have to alter it in two ways.
1. Make the project negotiation available, when no session is running.
(Shouldn't be too much work)
2. Automate the server side (IncomingProjectNegotiation, possibly a
little more work).
Do you see any problems with that? If yes, do you have any better
suggestions?
Regards,
Nils
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