[AG-TECH] shared image viewer

[Justin Binns]

Actually, the API has changed a little, and I haven't updated that code.  
Look at the shared browser (which you'll get in a 'sharedapps' directory 
with a CVS checkout) for the correct call.  Basically, Join() doesn't take 
an argument any more, and returns a tuple, containing both a public and a 
private ID (you'll have to get the order out of the SharedBrowser code, as 
I don't recall off-hand).  The privateID is used to validate future 
communications with the Venue Server, and the publicID can be used to 
identify each instance in communications with other instances.  Does that 
help?

Justin

On Tue, 13 May 2003, Dave Semeraro wrote:

> 
> Techies,
> 
> I have a question regarding Justin's shared image viewer. In trying to 
> emulate what he did I get
> errors returned from the venue server. Now perhaps I am doing this wrong. I 
> simply do the
> following in my python program.
> 
> # I have just set a bunch of attributes. Now I will try to attach to
> # a venue server... wish me luck.
>          self.clientHandle = Client.Handle(venueURL)
>          if self.clientHandle.IsValid():
>              print 'we appear to have a valid client handle'
>              self.venueProxy = self.clientHandle.GetProxy()
>          # If all went well I just attached to the venue server. If not
>          # I am in trouble. Carry on as if I know what I am doing...
>              self.privateId = self.venueProxy.Join(profile)
> 
> The little code snippet above has a problem at the last line. I get the 
> following error:
> 
> Traceback (most recent call last):
>    File 
> "C:\Python22\Lib\site-packages\Pythonwin\pywin\framework\scriptutils.py", 
> line 301, in RunScript
>      exec codeObject in __main__.__dict__
>    File "C:\Program Files\Access Grid Toolkit\AGImageView.py", line 114, in ?
>      app = MyApp(venueURL,profile)
>    File "C:\Program Files\Access Grid Toolkit\AGImageView.py", line 91, in 
> __init__
>      self.privateId = self.venueProxy.Join(profile)
>    File 
> "C:\Python22\Lib\site-packages\AccessGrid\hosting\pyGlobus\AGGSISOAP.py", 
> line 3650, in __call__
>      return self.__r_call(*args, **kw)
>    File 
> "C:\Python22\Lib\site-packages\AccessGrid\hosting\pyGlobus\AGGSISOAP.py", 
> line 3670, in __r_call
>      self.__hd, self.__ma)
>    File 
> "C:\Python22\Lib\site-packages\AccessGrid\hosting\pyGlobus\AGGSISOAP.py", 
> line 3585, in __call
>      raise p
> faultType: <Fault SOAP-ENV:Client: No method Join found>
> 
> Am I doing this wrong or is this a result of changes in the venue server?
> 
> If it is an API change, what would the correct call be?
> 
> Dave
> 
> Dave Semeraro Ph.D.
> Visualization and Virtual Environments Group
> NCSA University of Illinois
> 605 E. Springfield Ave.
> Champaign, IL 61820
> Semeraro at ncsa.uiuc.edu
> (217) 244-1852
> 
>