public boolean deleteProfile(String username, String password) {
AtomicBoolean toReturn = new AtomicBoolean(false);
AtomicInteger numberProfilesDeleted = new AtomicInteger(0);
profileList
.parallelStream()
.filter(
(userProfile) -> {
return (userProfile.get(ProfileItem.USERNAME.ordinal()).equals(username)
&& userProfile.get(ProfileItem.PASSWORD.ordinal()).equals(password));
})
.forEach(
(userProfile) -> {
profileList.remove(userProfile);
numberProfilesDeleted.addAndGet(1);
toReturn.set(true);
});
// This should never happen (there should not be any username overlap).
// If it does happen, there is some sort of security issue with the software.
// Throw an exception to notify the user.
if (numberProfilesDeleted.get() > 1) {
throw new SecurityException(
numberProfilesDeleted.get()
+ " profiles had the same username and password and were deleted.");
}
return toReturn.get();
}
public void createProfile(
String username, String password, String securityQuestion, String securityAnswer) {
// Create a linked list containing the user's password, security question, and security answer.
LinkedList<String> userProfile = new LinkedList<>();
userProfile.add(ProfileItem.USERNAME.ordinal(), username);
userProfile.add(ProfileItem.PASSWORD.ordinal(), password);
userProfile.add(ProfileItem.QUESTION.ordinal(), securityQuestion);
userProfile.add(ProfileItem.ANSWER.ordinal(), securityAnswer);
// Add the user's profile to the linked list.
profileList.add(userProfile);
}
/**
* This class is a singleton class. Instances may only be obtained using the getInstance() method.
*/
private ProfileModel() {
currentUsername = null;
profileList = new LinkedList<>();
if (DEBUG) {
LinkedList<String> adminAccount = new LinkedList<>();
adminAccount.add(ProfileItem.USERNAME.ordinal(), "admin");
adminAccount.add(ProfileItem.PASSWORD.ordinal(), "password");
adminAccount.add(ProfileItem.QUESTION.ordinal(), null);
adminAccount.add(ProfileItem.ANSWER.ordinal(), null);
profileList.add(adminAccount);
}
}
public boolean verifyProfile(String username, String password) {
if (username == null || password == null) {
return false;
}
// Check to see if any of the user profiles match the input values.
// Uses parallel stream for increased speed.
boolean profileFound =
profileList
.parallelStream()
.anyMatch(
(userProfile) -> {
return userProfile.get(ProfileItem.USERNAME.ordinal()).equals(username)
&& userProfile.get(ProfileItem.PASSWORD.ordinal()).equals(password);
});
if (profileFound) {
currentUsername = username;
}
return profileFound;
}
