public BuzzFeedEntry createPost( String userId, BuzzContent content, BuzzLink link )
throws BuzzIOException, BuzzAuthenticationException, BuzzValidationException, BuzzParsingException
{
String payload = XMLGenerator.constructPayload( content, link );
HttpsURLConnection request = BuzzIO.createRequest( BUZZ_URL_ACTIVITIES + userId + "/"
+ BuzzFeed.Type.PRIVATE.getName(), BuzzIO.HTTP_METHOD_POST );
buzzOAuth.signRequest( BuzzIO.addBody( request, payload ) );
String xmlResponse = BuzzIO.send( request );