public static void main(String[] args) { if (args.length < 2) { System.out.println("Usage: <port> <filename>"); System.exit(0); } int port = Integer.parseInt(args[0]); String filename = args[1]; DataOutputPacketManager dopm = null; IncomingConnection conn = null; try { dopm = new DataOutputPacketManager(filename); conn = new IncomingConnection(port); } catch (Exception e) { System.err.println(e.getMessage()); e.printStackTrace(); System.exit(99); } System.out.println("Ready to receive"); Packet p; do { p = conn.getNextPacket(); if (p == null) continue; try { System.out.println("Received packet (" + p.getShort(0) + ")"); } catch (PacketException e1) { System.err.println(e1.getMessage()); e1.printStackTrace(); } try { dopm.storePacket(p); } catch (PacketException e) { System.err.println(e.getMessage()); e.printStackTrace(); continue; } } while (!dopm.complete()); System.out.println("Receiver complete"); conn.close(); }
// Function To Generate AlphaNumeric Random Strings that will be used as unique Invoice ID. public String invoiceIDGenerator() { long decimalNumber = System.nanoTime(); String strBaseDigits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; String invoiceID = ""; int mod = 0; while (decimalNumber != 0) { mod = (int) (decimalNumber % 36); invoiceID = strBaseDigits.substring(mod, mod + 1) + invoiceID; decimalNumber = decimalNumber / 36; } return invoiceID; }
public void writeToFile(String invID, String carNumber, String carModel, String packName) { String separator = System.getProperty("line.separator"); // variable declarations for storing the data from the database. String bookedBy = new String(); String usedBy = new String(); String branch = new String(); int dd = 0, mm = 0, yyyy = 0, usedKms = 0, usedHours = 0, packKms = 0, packHours = 0; Double eKmsCharge = 0.0; Double eHoursCharge = 0.0; Double osaDays = 0.0; Double osaNights = 0.0; Double parking = 0.0; Double others = 0.0; Double subTotalA = 0.0; Double subTotalB = 0.0; Double serviceTax = 0.0; Double bookingAmount = 0.0; Double finalAmount = 0.0; String compName = new String(); String compAddr = new String(); String compPAN = new String(); String compDD = new String(); try { Connection con = db.createConnection(); Connection con2 = db.createConnection(); String retrieveStatement = "select * from invoices where invoiceno=?"; String retrieveCompanyInfo = "select * from company"; PreparedStatement ps = con.prepareStatement(retrieveStatement); Statement st = con2.createStatement(); ps.setString(1, invID); ResultSet rs = ps.executeQuery(); ResultSet rs2 = st.executeQuery(retrieveCompanyInfo); while (rs.next()) { bookedBy = rs.getString(2); usedBy = rs.getString(3); branch = rs.getString(4); dd = rs.getInt(5); mm = rs.getInt(6); yyyy = rs.getInt(7); usedKms = rs.getInt(8); usedHours = rs.getInt(9); packKms = rs.getInt(10); packHours = rs.getInt(11); eKmsCharge = rs.getDouble(13); eHoursCharge = rs.getDouble(14); osaDays = rs.getDouble(15); osaNights = rs.getDouble(16); parking = rs.getDouble(17); others = rs.getDouble(18); subTotalA = rs.getDouble(19); subTotalB = rs.getDouble(20); serviceTax = rs.getDouble(21); bookingAmount = rs.getDouble(22); finalAmount = rs.getDouble(23); } while (rs2.next()) { compName = rs2.getString(1); compAddr = rs2.getString(2); compPAN = rs2.getString(3); compDD = rs2.getString(4); } File file = new File("temp.txt"); Writer writer = new BufferedWriter(new FileWriter(file)); writer.write(separator + " Invoice ID: " + invID); writer.write(separator + " Company Name: " + compName); writer.write( separator + " Used By: " + usedBy + separator + " Booked By: " + bookedBy + " Branch Requested: " + branch); writer.write( separator + "------------------------------------------------------------------------------------------------------------------"); writer.write(separator + " Car No.: " + carNumber + "\t\tCar Alotted: " + carModel); writer.write(separator + " Package: " + packName); writer.write( separator + " Kms Used: " + usedKms + " Extra Kms: " + (usedKms - packKms) + " Extra Kms Charge(@10% extra rate): " + eKmsCharge); writer.write( separator + " Hours Used: " + usedHours + " Extra Hours: " + (usedHours - packHours) + " Extra Hours Charge(@Rs.50/hr): " + eHoursCharge); writer.write( separator + " Car Used On: " + dd + "-" + mm + "-" + yyyy + " Sub Total (A): " + subTotalA); writer.write( separator + "------------------------------------------------------------------------------------------------------------------"); writer.write( separator + " Parking & Toll: " + parking + " Others: " + others); writer.write( separator + " Out Station Allowance (in Rs.) for \t Days: " + osaDays + " Nights: " + osaNights); writer.write( separator + " Sub Total (B): " + subTotalB); writer.write( separator + "------------------------------------------------------------------------------------------------------------------"); writer.write( separator + " Total (A+B): " + (subTotalA + subTotalB)); writer.write( separator + separator + " PAN: " + compPAN + " Service Tax: " + serviceTax); writer.write(separator + " Service Tax Category: Rent-a-Cab\t\tTotal: " + finalAmount); writer.write( separator + " All Cheques/Drafts to be drawn in favor of\t\tBooking Amount: " + bookingAmount + separator + " " + compDD + "\t\tNet Payable: " + (finalAmount - bookingAmount)); writer.write(separator + separator + " Billing Address" + separator + " " + compAddr); writer.flush(); con.close(); con2.close(); Invoice i = new Invoice(); i.setVisible(true); } catch (Exception ee) { ee.printStackTrace(); } }