public static void ProcessCustomerPayment(Connection conn) {
// This function updates is_paid so billing staff can keep track of the payments customers have
// made
int c_id = BooksAThousand.getIntFromShell("Enter customer ID: ");
try {
Statement statement =
conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
ResultSet rs =
statement.executeQuery(
"select customer_id, isbn, quantity, price, customer_order_date, is_paid"
+ " from customer_order where customer_id="
+ c_id
+ " and is_paid='N'");
if (rs.next()) {
System.out.println("Outstanding payments:");
System.out.printf(
"Order %-10s %-5s %-5s %-10s %-10s\n", "ISBN", "Quant", "Price", "Total", "Date");
Date date;
int i = 0;
SimpleDateFormat sdf = new SimpleDateFormat("MM-dd-yyyy hh:mm");
do {
i++;
date = rs.getDate(5);
System.out.printf(
"%-5s: %-10s %-5d %-5d %-10d %-10s \n",
i,
rs.getInt(2),
rs.getInt(3),
rs.getInt(4),
rs.getInt(3) * rs.getInt(4),
sdf.format(date));
} while (rs.next());
int order = BooksAThousand.getIntFromShell("Which order to mark as paid: ");
rs.absolute(i);
rs.updateString(6, "Y");
rs.updateRow();
System.out.println("Update successful.");
} else {
System.out.println("This user has no unpaid orders");
}
} catch (Throwable e) {
e.printStackTrace();
}
}
public static void GenerateCustomerBill(Connection conn) {
// We intended to produce the bills over certain time periods but
// we will offer an option to check just the last 3 months.
try {
int c_id = BooksAThousand.getIntFromShell("Enter customer ID: ");
Statement statement = conn.createStatement();
ResultSet rs =
statement.executeQuery("select address, name from customer where customer_id = " + c_id);
rs.next();
String address = rs.getString(1);
String name = rs.getString(2);
rs =
statement.executeQuery(
"select customer_id, isbn, quantity, price, customer_order_date"
+ " from customer_order where customer_id="
+ c_id
+ " and is_paid='N'");
float total = 0;
if (rs.next()) {
Date date;
SimpleDateFormat sdf = new SimpleDateFormat("MM-dd-yyyy hh:mm");
System.out.println("\n" + address);
System.out.println("\nDear " + name + ", \nBelow are your unpaid orders. Pay up.\n");
System.out.printf(
"%-10s %-20s %-5s %-8s %-11s\n", "ISBN", "Date", "Quant", "Price", "Total");
do {
total += rs.getInt(3) * rs.getFloat(4);
date = rs.getDate(5);
System.out.printf(
"%-10s %-20s %-5d $%-7.2f $%-10.2f \n",
rs.getInt(2),
sdf.format(date),
rs.getInt(3),
rs.getFloat(4),
rs.getInt(3) * rs.getFloat(4));
} while (rs.next());
System.out.printf("Total: $%.2f\n", total);
} else {
System.out.println("This user has no unpaid orders");
}
} catch (Throwable e) {
e.printStackTrace();
}
}
public static void showMenu(Connection conn) {
// For this demo we won't have people login as a billing person because
// they all have the same privileges (not store-specific).
int swValue;
do {
System.out.println("You are logged in as a billing staff member");
// Display menu graphics
System.out.println("===========================================================");
System.out.println("| AVAILABLE MENU FOR BILLING STAFF |");
System.out.println("===========================================================");
System.out.println("| Choose from one of the Options below: |");
System.out.println("| 1. Generate a customer bill |");
System.out.println("| 2. Generate a vendor bill |");
System.out.println("| 3. Process customer payment |");
System.out.println("| 4. Process vendor payment |");
System.out.println("| 5. Exit |");
System.out.println("===========================================================");
swValue = BooksAThousand.getIntFromShell("Please Select an option: ");
// Switch construct
switch (swValue) {
case 1:
GenerateCustomerBill(conn);
break;
case 2:
GenerateVendorBill(conn);
break;
case 3:
ProcessCustomerPayment(conn);
break;
case 4:
ProcessVendorPayment(conn);
break;
case 5:
break;
default:
System.out.println("Invalid selection");
}
} while (swValue != 5);
}