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[CT414]: Assignment 1 error handling and testing

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Aindréas Ó hAodha
2025-02-02 18:21:18 +00:00
parent 5cfe0a42a3
commit 66bffe0d85
9 changed files with 54 additions and 12 deletions
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13
year4/semester2/CT414/assignments/assignment1/code/src/implementations/ApplicationHandlerImpl.java
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@ -10,6 +10,13 @@ import java.io.*;
public class ApplicationHandlerImpl implements ApplicationHandler {
private ArrayList<Long> sessions = new ArrayList<Long>();
// private method to validate session ids
private boolean isSessionIDValid(long sessionID) {
// check that session is valid and has not expired
// letting session ids expire after 60 seconds for easier testing, a more practical number would be something like 10 minutes
return sessions.contains(sessionID) && ((System.currentTimeMillis()) - sessionID < 6000);
}
@Override
public long login(String username, String password) throws RemoteException, InvalidCredentialsException {
// hardcoded username and password (great practice for security)
@ -21,13 +28,15 @@ public class ApplicationHandlerImpl implements ApplicationHandler {
return sessionId;
} else {
System.out.println("Login failed with user " + username + " and password " + password);
throw new InvalidCredentialsException("Invalid username or password.");
}
}
@Override
public ApplicationForm downloadApplicationForm(long sessionID) throws RemoteException, InvalidSessionIDException {
if (sessions.contains(sessionID)) {
// check that session is valid and has not expired
if (isSessionIDValid(sessionID)) {
System.out.println("Returning application form for session ID: " + sessionID);
return new ApplicationFormV1();
} else {
@ -37,7 +46,7 @@ public class ApplicationHandlerImpl implements ApplicationHandler {
@Override
public void submitApplicationForm(long sessionID, ApplicationForm applicationForm) throws RemoteException, InvalidSessionIDException {
if (sessions.contains(sessionID)) {
if (isSessionIDValid(sessionID)) {
String filename = applicationForm.getName().replaceAll("\\s", "_") + ".txt";
try (BufferedWriter writer = new BufferedWriter(new FileWriter(filename))) {