1. CS 190 Lecture Notes: Tweeter Project
Thin Methods
private void addNullValueForAttribute(String attribute) { data.put(attribute, "null"); } /* Updates the persistent data structures to reflect * the given friendship */ private void persist(FriendshipOp f) { recordStore.append(friendFile, f);
CS 190 Lecture Notes: Tweeter Project

2. CS 190 Lecture Notes: Tweeter Project
Thin Methods, cont’d
/** * This should be called to make sure that the the url path * in the HTTP request has a corresponding URL Action that * can be invoked. * urlPath True if the urlPath matches one of the urls in the * methods annotated with APIRequest. */ private boolean isValidUrl(final String urlPath) return this.urlActionMap.containsKey(urlPath); }
CS 190 Lecture Notes: Tweeter Project

3. CS 142 Lecture Notes: Events
Java I/O
FileInputStream fileStream =
new FileInputStream(fileName);
BufferedInputStream bufferedStream =
new BufferedInputStream(fileStream);
ObjectInputStream objectStream =
new ObjectInputStream(bufferedStream);
CS 142 Lecture Notes: Events

4. CS 142 Lecture Notes: Events
UNIX ioctl
int result = ioctl(int fd, int request,
void* inBuffer, int inputSize,
void* outBuffer, int outputSize);
CS 142 Lecture Notes: Events