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dynamically adding extensions [message #540426]

Wed, 16 June 2010 06:51

No real name

Messages: 5
Registered: June 2010

Junior Member

Hi,
I've defined an extension point. I use this to add additional functionality to my headless RCP application. This works fine so far.
IExtensionRegistry reg = Platform.getExtensionRegistry();
IExtension[] extensions = reg.getExtensionPoint(CUSTOM_TASK_EXTENSION).getExtensions() ;
provides all the extensions I need.
But I also want that a new extension can be dropped during runtime in the /plugins folder and another call of the to the registry would provide an updated list.
This is not the case, I always get the initial list.
Is there a way to reload/update that registry?

Thanks in advance for any help.

Cheers, Stephan

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Re: dynamically adding extensions [message #540461 is a reply to message #540426]

Wed, 16 June 2010 08:42

Stefan Liebig

Messages: 124
Registered: July 2009

Senior Member

Hi Stephan,

This is just a guess!
I think you need to restart the bundle with the new extension or add the
extension programmatically to the extension registry with
registry.addContribution(..).
I do not think that the extension registry is monitoring changes within
a plugin.xml.

Tschüß,
Stefan

On 16.06.2010 08:51, stephan.paulicke@web.de wrote:
> Hi,
> I've defined an extension point. I use this to add additional
> functionality to my headless RCP application. This works fine so far.
> IExtensionRegistry reg = Platform.getExtensionRegistry();
> IExtension[] extensions =
> reg.getExtensionPoint(CUSTOM_TASK_EXTENSION).getExtensions() ;
> provides all the extensions I need.
> But I also want that a new extension can be dropped during runtime in
> the /plugins folder and another call of the to the registry would
> provide an updated list.
> This is not the case, I always get the initial list.
> Is there a way to reload/update that registry?
>
> Thanks in advance for any help.
>
> Cheers, Stephan

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Re: dynamically adding extensions [message #540466 is a reply to message #540461]

Wed, 16 June 2010 09:19

No real name

Messages: 5
Registered: June 2010

Junior Member

Hi,
thanks for the answer. I've found some code snippets on that, but they didn't really help. I somehow add a contributor, but ended up with ClassNotFound exceptions.
Do you have perhaps a sample snippet?

Thanks in advance.

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Re: dynamically adding extensions [message #540480 is a reply to message #540466]

Wed, 16 June 2010 10:49

Stefan Liebig

Messages: 124
Registered: July 2009

Senior Member

Hi,

I use this within unit tests to ´manually´ provide new
extensions/extension points:
final IExtensionRegistry registry = RegistryFactory.getRegistry();
final InputStream inputStream = forLoad.getResourceAsStream(pluginResource);
final IContributor contributor =
ContributorFactoryOSGi.createContributor(getContext().getBun dle());
final boolean success = registry.addContribution(inputStream,
contributor, false, pluginResource, null,
((ExtensionRegistry) registry).getTemporaryUserToken());

hth

Tschüß,
Stefan

On 16.06.2010 11:19, stephan.paulicke@web.de wrote:
> Hi,
> thanks for the answer. I've found some code snippets on that, but they
> didn't really help. I somehow add a contributor, but ended up with
> ClassNotFound exceptions.
> Do you have perhaps a sample snippet?
>
> Thanks in advance.

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