/**
* This method check whether the customer has good credit standing.
*
* @param firstName
* @param lastName
* @param phoneNumber
* @return True or False for success and failure respectively
*/
public Boolean isCreditOK(String firstName, String lastName, String phoneNumber) {
List<Loan> loanList = loanMap.get(firstName.charAt(0));
if (loanList != null) {
Iterator<Loan> iterator = loanList.iterator();
while (iterator.hasNext()) {
Loan loan = iterator.next();
Customer account = loan.getAccount();
if (firstName.equals(account.getFirstName())
&& lastName.equals(account.getLastName())
&& phoneNumber.equals(account.getPhoneNumber())) {
if (account.getCreditLimit() > 0) {
return true;
} else {
return false;
}
}
}
}
return true;
}
/**
* This method approves or rejects a loan request.
*
* @param accountNumber
* @param password
* @param loanAmount
* @return success/failure
*/
@Override
public boolean getLoan(String bank, String accountNumber, String password, int loanAmount) {
// This add log information to the log file
try {
blockingQueue.put(
new Date()
+ ": AccountNumber:"
+ accountNumber
+ " has initiated a loan request for "
+ loanAmount
+ " at "
+ bankName);
} catch (InterruptedException e) {
e.printStackTrace();
}
Customer customerAccount = getAccount(accountNumber, password);
String loanId = null;
int port1 = 0;
int port2 = 0;
if (customerAccount == null) {
return false;
}
if (bankName.equals("RBC")) {
port1 = Configuration.UDP_SERVER_2_PORT;
port2 = Configuration.UDP_SERVER_3_PORT;
} else if (bankName.equals("TD")) {
port1 = Configuration.UDP_SERVER_1_PORT;
port2 = Configuration.UDP_SERVER_3_PORT;
} else if (bankName.equals("BMO")) {
port1 = Configuration.UDP_SERVER_1_PORT;
port2 = Configuration.UDP_SERVER_2_PORT;
}
boolean isCreditGood =
Boolean.parseBoolean(
creditCheckUDP(
customerAccount.getFirstName(),
customerAccount.getLastName(),
customerAccount.getPhoneNumber(),
port1))
&& Boolean.parseBoolean(
creditCheckUDP(
customerAccount.getFirstName(),
customerAccount.getLastName(),
customerAccount.getPhoneNumber(),
port2));
if (!isCreditGood) {
return false;
}
if (customerAccount != null) {
if (customerAccount.getCreditLimit() >= loanAmount) {
// Updating the new credit limit for customer
customerAccount.setCreditLimit(customerAccount.getCreditLimit() - loanAmount);
Loan loan = new Loan();
synchronized (loanCounter) {
loanId = accountNumber.charAt(0) + "" + loanCounter.incrementAndGet();
loan.setLoanId(loanId);
}
loan.setLoanAmount(loanAmount);
Date date = new Date();
if (loanAmount < 2000) {
date.setMonth(date.getMonth() + 12);
} else {
date.setMonth(date.getMonth() + 24);
}
loan.setLoanDueDate(date);
loan.setAccount(customerAccount);
// Store the loan in loanMap, synchronized block is present in
// saveLoan
saveLoan(loanId, loan);
updateAccountMap(customerAccount);
/* System.out.println(accountMap); */
return true;
}
}
// System.out.println(accountMap);
return false;
}
/**
* This method transfers loan from one bank to another.
*
* @param loanId
* @param currentBank
* @param otherBank
* @param transferStatus
*/
@Override
public boolean transferLoan(String loanId, String currentBank, String otherBank) {
int portNumber = 0;
if (otherBank.equalsIgnoreCase("RBC")) {
portNumber = Configuration.UDP_SERVER_1_PORT;
} else if (otherBank.equalsIgnoreCase("TD")) {
portNumber = Configuration.UDP_SERVER_2_PORT;
} else if (otherBank.equalsIgnoreCase("BMO")) {
portNumber = Configuration.UDP_SERVER_3_PORT;
}
List<Loan> loanList = loanMap.get(loanId.charAt(0));
Customer customer = null;
if (loanList != null) {
Iterator<Loan> loanIterator = loanList.iterator();
Loan loan = null;
while (loanIterator.hasNext()) {
loan = loanIterator.next();
if (loan.getLoanId().equals(loanId)) {
customer = loan.getAccount();
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
String loanDueDate = sdf.format(loan.getLoanDueDate());
String message =
transferLoanUDP(
customer.getFirstName(),
customer.getLastName(),
customer.getEmailId(),
customer.getPhoneNumber(),
customer.getPassword(),
loan.getLoanAmount(),
loanDueDate,
portNumber);
if (message.equalsIgnoreCase("Success")) {
// Note: Here iterator is pointing to a loanlist that's
// why I have used synchronized block on loanlist and
// not on iterator
synchronized (loanList) {
loanIterator.remove();
}
customer.setCreditLimit(customer.getCreditLimit() + loan.getLoanAmount());
updateAccountMap(customer);
return true;
}
break;
}
}
}
return false;
}
/**
* This method opens a bank account
*
* @param bankName
* @param firstName
* @param lastName
* @param emailId
* @param phoneNumber
* @param password
* @return accountNumber
*/
@Override
public String openAccount(
String bank,
String firstName,
String lastName,
String emailId,
String phoneNumber,
String password) {
accountCount++;
if (accountCount == 3) {
return "Anunay";
}
System.out.println("1");
try {
blockingQueue.put(
new Date()
+ ": "
+ firstName
+ " "
+ lastName
+ " has initiated a request to open an account at "
+ bank);
} catch (InterruptedException e) {
System.out.println(e.getMessage());
e.printStackTrace();
}
Customer account = new Customer();
account.setFirstName(firstName);
account.setLastName(lastName);
account.setEmailId(emailId);
account.setPhoneNumber(phoneNumber);
account.setPassword(password);
account.setCreditLimit(1000);
String accountNo = null;
synchronized (counter) {
System.out.println("test1");
int accountSequence = counter.incrementAndGet();
accountNo = firstName.charAt(0) + "" + accountSequence;
// counter.set(new AtomicInteger(accountSequence));
account.setAccountNumber(accountNo);
}
List<Customer> accountList = accountMap.get(accountNo.charAt(0));
System.out.println("test2");
if (accountList == null) {
System.out.println("test3");
accountList = new ArrayList<Customer>();
} else {
Iterator<Customer> accountIterator = accountList.iterator();
System.out.println("test4");
while (accountIterator.hasNext()) {
Customer acct = accountIterator.next();
if ((acct.getFirstName()).equals(firstName)
&& (acct.getLastName().equals(lastName))
&& (acct.getEmailId()).equals(emailId)) {
return "Already-" + acct.getAccountNumber();
}
System.out.println("test5");
}
}
synchronized (accountList) {
System.out.println("test6");
accountList.add(account);
accountMap.put(firstName.charAt(0), accountList);
System.out.println("test7");
}
System.out.println("test8");
return accountNo;
}