public String performBill() {
sender.setCheckingaccount(sender.getCheckingaccount() - amount);
recipient.setCheckingaccount(recipient.getCheckingaccount() + amount);
em.merge(sender);
em.merge(recipient);
return sender.getCheckingaccount().toString();
}
@Override
public List<String> getBeneficiary() {
List<String> res = new LinkedList();
res.add(recipient.getUsername());
res.add(recipient.getFirstname());
res.add(recipient.getSecondname());
return res;
}
public static Boolean Login(String userName, String password) {
if (StringHelper.IsNullOrWhitespace(userName) || StringHelper.IsNullOrWhitespace(password))
return false;
userName = userName.toLowerCase();
String passwordHash = DigestUtils.md5Hex(password);
UserEntity user = UserEntityHelper.GetUserByUserName(userName);
if (user == null) return false;
if (!user.getPassword().equals(passwordHash)) return false;
if (user.getIsEnabled() == false) return false;
SessionManager.getInstance().createSession(user);
return true;
}
public void checkRecipient() throws InvalidCustomerAccountException {
try {
em.createNamedQuery("UserEntity.findByUsername")
.setParameter("username", recipient.getUsername())
.getSingleResult();
} catch (NoResultException nre) {
System.out.println("No recipient found");
throw new InvalidCustomerAccountException("Error: the recipient does not exist anymore.");
}
}
@Override
public boolean setAmount(Long amount, String username) {
sender =
(UserEntity)
em.createNamedQuery("UserEntity.findByUsername")
.setParameter("username", username)
.getSingleResult();
if (amount > sender.getCheckingaccount()) {
System.out.println("You don't have enough money");
return false;
} else {
this.amount = amount;
return true;
}
}
public void checkBillDetails() throws IncorrectBillDetailsException {
Long sendAmount = sender.getCheckingaccount();
if ((sendAmount - amount) < 0)
throw new IncorrectBillDetailsException(
"Error: Bill details not correct. Check the amount of the transaction");
}
public void checkCredentials(String user, String pwd) throws InvalidCustomerAccountException {
if (!(sender.getUsername().equals(user) && sender.getPassword().equals(pwd))) {
throw new InvalidCustomerAccountException("Error: Username or password not correct");
}
}