[Opensim-dev] Splitting IUserService

[Cristina Videira Lopes]

+1000!

Michael Wright wrote:
> Does anyone have any objections to splitting the IUserService 
> interface, so that the Avatar Appearance and attachments are in their 
> own interface IAvatarService ?
>
> I really don't think we should be coupling things like we are. I'm not 
> saying that these functions have to move off the User Server. Just on 
> the region side, we move them into their own interface, so that if 
> someone wants those functions to be on a different server, they can 
> change the url of the server to be different to the user server with 
> minor code changes.
>
> When I think about the various Servers, I generally think of the User 
> server as holding account infomation. The Grid Server as being the 
> general manager of the "grid". And the Inventory and Asset servers as 
> the general datastores.
>
> So to fit in with my view, the avatar appearance data would fit better 
> on the Inventory server or even a separate server that was part of the 
> datastore group. This is so that we could have one central User 
> Server, but a number of Inventory and Asset servers. Each user's 
> in-world data could be on a different set of those.
>
> As I've said before, I really think we should have a system that 
> allows the various backend functions to be where ever a grid admin 
> thinks is best. But thats still a dream.
>
> But we can do a small change that would allow a different url to be 
> set for the Avatar services, if a application required it.
>
> So what I'm suggesting is we add a new interface to the 
> CommunicationsManager, like:
>
> public Interface IAvatarService
> {
>         AvatarAppearance GetUserAppearance(LLUUID user);
>
>         void UpdateUserAppearance(LLUUID user, AvatarAppearance 
> appearance);
>
>         void AddAttachment(LLUUID user, LLUUID attach);
>
>         void RemoveAttachment(LLUUID user, LLUUID attach);
>
>         List<LLUUID> GetAttachments(LLUUID user);
> }
>
> The OSGrid implementation could be exactly like it is now, and send 
> the requests to the user server. I'm not even talking about adding a 
> new setting to the ini file, but just leaving the code so it uses the 
> UserServer url.
>
> So its really a minor change, but does decouple these functions from 
> the more general user account functions.
>
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