CDavAddressbookHandler::GetDefaultResourceProvider

private function GetDefaultResourceProvider()
{
	static $resourceProvider;

	if (!$resourceProvider)
	{
		$userId = $this->groupdav->GetRequest()->GetPrincipal()->Id();
		if ($userId)
			$defaultCollectionName = self::GetDefaultResourceProviderName($userId);
		else
		{
			$defaultCollectionName = self::DEFAULT_COLLECTION_NAME;
		}
		$resourceProvider = $this->addressbookCollections[$defaultCollectionName];
		$resourceProvider->setUri('addressbook');
	}
	return $resourceProvider;
}