IMetadataRepositoryManager manager = (IMetadataRepositoryManager) getProvisioningAgent().getService(IMetadataRepositoryManager.SERVICE_NAME);
		
		try {
			manager.loadRepository(new URI("http://mysite.url.com/"), monitor);
		} catch (ProvisionException | OperationCanceledException| URISyntaxException e) {
			throw new GkTechnicalException(e);
		}				
		// Query "groups"
		IQuery<IInstallableUnit> query =QueryUtil.createLatestQuery(QueryUtil.createMatchQuery("properties[$0] == $1 && properties[$2] != null", "org.eclipse.equinox.p2.type.group", "true", "org.eclipse.equinox.p2.type.category"));
		Collection<IInstallableUnit> lstInstallableUnit = manager.query(query, monitor).toUnmodifiableSet();