RE: [dsdp-tm-dev] (no subject)

["Oberhuber, Martin" <Martin.Oberhuber@xxxxxxxxxxxxx>]

Hello Tobias,

I have not checked in detail, but I'm afraid
that in order to implement a structure like
outlined by you, you won't be able to re-use
the existing
   FileServiceSubSystem 
   ProcessServiceSubSystem
classes.

I think the main problem is that in the SystemView
code, which renders the tree, there are some 
assumptions made about the relationship of 
elements (i.e. stuff that can be adapted to an
ISystemViewElementAdapter) and their hierarchy.

As far as I can remember, the code does walk up/down
the tree in order to associate such elements with 
a given subsystem, associate filters with filter
references and so on. In your proposal, these 
assumptions about parent/child relationships are
at least partially broken.

Long story short: Of course you can create your
own subsystem and implement your own methods
of getChildren(), adapter etc in order to return
any structure you like. 
But re-using the existing subsystem code (unchanged!)
in such an environment is not specified, and unlikely
to work ... feel free to try it out, and let me know
if it works, but I'm guessing that you'd be running
into trouble.

Allowing such re-use in the future is interesting,
and there are existing discussions in that direction
e.g.

  [filters] Grouping filters across subsystems 
  https://bugs.eclipse.org/bugs/show_bug.cgi?id=164807

  http://wiki.eclipse.org/DSDP-TM_Proposal_for_RSE_Hierarchy_by_Dave_Dykstal_2005x11x09

But I assume that such work will likely need changes
in the extension point structure and most likely changes
in the SystemView code (not even talking about the other
views like TableView, Monitor).

Cheers,
--
Martin Oberhuber, Senior Member of Technical Staff, Wind River
Target Management Project Lead, DSDP PMC Member
http://www.eclipse.org/dsdp/tm
 
 

> -----Original Message-----
> From: dsdp-tm-dev-bounces@xxxxxxxxxxx 
> [mailto:dsdp-tm-dev-bounces@xxxxxxxxxxx] On Behalf Of Tobias 
> Södergren XT
> Sent: Friday, September 12, 2008 2:27 PM
> To: Target Management developer discussions
> Subject: [dsdp-tm-dev] (no subject)
> 
> Hi TM gurus!
>  
> I'm trying to understand how to implement the following tree:
>  
> [Connection]
>    ^---[SubSystem]
>          ^---[Target 1]
>                 ^---[Processes]
>                        ^---Process 1
>                        ^---Process 2
>                 ^---[Remote files]
>                        ^---File 1
>                        ^---File 2  
>          ^---[Target 2]
>                 ^---[Processes]
>                        ^---Process 1
>                        ^---Process 2
>                 ^---[Remote files]
>                        ^---File 1
>                        ^---File 2
> 
> I've got the Connection, SubSystem and Target working, but 
> I'd like to reuse the 
> AbstractFileService and ProcessService with complementary UI 
> for the remote IRemoteFile and IHostProcess.
> I guess that there exist some UI/AbstractResource that 
> operates on an IFileService implementation.
> I've implemented the AbstractFileService but I haven't found 
> the way to create the tree above.
> Can/should I use an extension point and register something on 
> the Target, should I implement
> getChildren() in my TargetResourceAdapter that returns an 
> [Remote files] instance, or what?
> 
> Any help is appreciated.
> 
> Best regards,
> Tobias Södergren
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