RE: [cdt-dev] Toolchain updates

["Anderson, Glen" <Glen.Anderson@xxxxxxxxxx>]

	Thanks again James. I think I'm getting close but I'm still not quite able to set the provider properly. Starting with a particular IConfiguration here's my code in a nutshell:

	ArrayList<String> providerIds = ... // the list containing my id

	// get the IConfigurationDescription for this IConfiguration. This
	// returns a CConfigurationDescriptionCache object
	ICConfigurationDescription configDescription = 
    		ManagedBuildManager.getDescriptionForConfiguration(config);

	// this throws a WriteAccessException exception
    	configDescription.setExternalSettingsProviderIds(providerIds.toArray(new String[0]));

	The call to setExternalSettingsProviderIds() seems to always fail because the CConfigurationDescriptionCache is read-only. The only time it seems writable is in very small window during creation.  I wonder if I need to somehow get my hands on an actual CConfigurationDescription rather than a *Cache object? If so how? My head is still spinning a bit trying to understand the relationship of the various description objects in the MBS.

	Thanks again for all your help,
	Glen

-----Original Message-----
From: cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of James Blackburn
Sent: Tuesday, May 19, 2009 4:49 PM
To: CDT General developers list.
Subject: Re: [cdt-dev] Toolchain updates

Hi Glen,

2009/5/19 Anderson, Glen <Glen.Anderson@xxxxxxxxxx>:
> Presumably it should be done
> immediately after the project is created or opened so I've implemented
> an IResourceChangeListener to track the event. The problem that I'm
> running into though is that even this event is called too early because
> the ICCConfigurationDescription objects are still not completely done
> initializing (e.g. doneInitialization() has not been called yet so
> calling setExternalSettingsProviderIds() throws an exception).
>
>        Any advice on the best strategy for initializing the providers?
> Maybe some example(s) somewhere? Of course it's entirely possible
> (probable) that I'm just missing something obvious here too :)

In my case I only hook in the external provider when certain tool
options are enabled.

If you want to hook it in immediately after project creation then you
could register a listener for CProjectDescrtipionEvents with:
CCorePlugin.getDefault().addCProjectDescriptionListener(ICProjectDescriptionListener,
CProjectDescriptionEvent.APPLIED)

These events are fired during project description life cycle including
project serializing. A fair bit of CDT is drive from these events, so
they fire multiple times after project creation as scanner discovery
etc. takes place..

Cheers,
James
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