public function lookup_consumer($consumer_key)
	{
		$returnValue = null;

		$consumer = $this->findOauthConsumerResource($consumer_key);
		$secret			= (string)$consumer->getUniquePropertyValue($this->getProperty(self::PROPERTY_OAUTH_SECRET));
		$callbackUrl	= null;
		
		$returnValue = new OAuthConsumer($consumer_key, $secret, $callbackUrl);

		return $returnValue;
	}