question: protected synchronized void received ( int responseCode , String stream , String json ) { FollowerInfo result = parseFollowers ( stream , json ) ; if ( result != null ) { noError ( stream ) ; cached . put ( stream , result ) ; if ( type == Follower . Type . FOLLOWER ) { listener . receivedFollowers ( result ) ; if ( hasNewFollowers ( result . followers ) ) { listener . newFollowers ( result ) ; } } else if ( type == Follower . Type . SUBSCRIBER ) { listener . receivedSubscribers ( result ) ; } requested . add ( stream ) ; } else { String errorMessage = "" ; if ( responseCode == 404 ) { errorMessage = "Channel not found." ; error ( stream , 10 ) ; } else if ( responseCode == 200 ) { errorMessage = "Parse error." ; error ( stream , 1 ) ; } else if ( responseCode == 401 || responseCode == 403 ) { errorMessage = "Access denied." ; error ( stream , 1 ) ; } else if ( responseCode == 422 ) { errorMessage = "No data for this channel." ; error ( stream , 10 ) ; } else { errorMessage = "Request error." ; error ( stream , 1 ) ; } FollowerInfo errorResult = new FollowerInfo ( type , stream , errorMessage ) ; cached . put ( stream , errorResult ) ; if ( type == Follower . Type . FOLLOWER ) { listener . receivedFollowers ( errorResult ) ; } else if ( type == Follower . Type . SUBSCRIBER ) { listener . receivedSubscribers ( errorResult ) ; } } }
target:  Received data from the API, so parse it or handle a possible error, then give it to the listener.