Subversion Repositories SmartDukaan

package in.shop2020.support.services;

import in.shop2020.config.ConfigException;

import in.shop2020.logistics.DeliveryType;

import in.shop2020.logistics.LogisticsServiceException;

import in.shop2020.logistics.Provider;

import in.shop2020.model.v1.catalog.InventoryService.Client;

import in.shop2020.model.v1.catalog.InventoryServiceException;

import in.shop2020.model.v1.catalog.Warehouse;

import in.shop2020.model.v1.order.LineItem;

import in.shop2020.model.v1.order.Order;

import in.shop2020.model.v1.order.TransactionServiceException;

import in.shop2020.thrift.clients.CatalogServiceClient;

import in.shop2020.thrift.clients.LogisticsServiceClient;

import in.shop2020.thrift.clients.TransactionServiceClient;

import in.shop2020.thrift.clients.config.ConfigClient;

import java.io.ByteArrayOutputStream;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.text.DateFormat;

import java.text.DecimalFormat;

import java.util.Date;

import java.util.List;

import java.util.Locale;

import java.util.Properties;

import org.apache.commons.lang.WordUtils;

import org.apache.thrift.TException;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import com.ibm.icu.text.RuleBasedNumberFormat;

import com.itextpdf.text.Document;

import com.itextpdf.text.Element;

import com.itextpdf.text.Font;

import com.itextpdf.text.Font.FontFamily;

import com.itextpdf.text.FontFactory;

import com.itextpdf.text.FontFactoryImp;

import com.itextpdf.text.Image;

import com.itextpdf.text.Paragraph;

import com.itextpdf.text.Phrase;

import com.itextpdf.text.Rectangle;

import com.itextpdf.text.pdf.BaseFont;

import com.itextpdf.text.pdf.PdfPCell;

import com.itextpdf.text.pdf.PdfPTable;

import com.itextpdf.text.pdf.PdfWriter;

import com.itextpdf.text.pdf.draw.DottedLineSeparator;

public class InvoiceGenerationService {

	private static Logger logger = LoggerFactory.getLogger(InvoiceGenerationService.class);

	private TransactionServiceClient tsc = null;

	private CatalogServiceClient csc = null;

	private LogisticsServiceClient lsc = null;

	private static Locale indianLocale = new Locale("en", "IN");

	private DecimalFormat amountFormat = new DecimalFormat("#,##0.00");

	private static final Font helvetica8 = FontFactory.getFont(FontFactory.HELVETICA, 8);

	private static final Font helvetica10 = FontFactory.getFont(FontFactory.HELVETICA, 10);

	private static final Font helvetica12 = FontFactory.getFont(FontFactory.HELVETICA, 12);

	private static final Font helvetica16 = FontFactory.getFont(FontFactory.HELVETICA, 16);

	private static final Font helveticaBold8 = FontFactory.getFont(FontFactory.HELVETICA_BOLD, 8);

	private static final Font helveticaBold12 = FontFactory.getFont(FontFactory.HELVETICA_BOLD, 12);

	private static final Properties properties = readProperties();

	private static final String ourAddress = properties.getProperty("sales_tax_address",

					"Spice Online Retail Pvt. Ltd.\nKhasra No. 819, Block-K\nMahipalpur, New Delhi-110037\n");

	private static final String tinNo = properties.getProperty("sales_tax_tin",	"07250399732");

	private static final String delhiPincodePrefix = "11";

	private static final double salesTaxLowRate = Double.parseDouble(properties.getProperty("sales_tax_low_rate", "5.0"));

	private static final double salesTaxHighRate = Double.parseDouble(properties.getProperty("sales_tax_high_rate", "12.5"));

	private static final double salesTaxCutOff = (Double.parseDouble(properties.getProperty("sales_tax_cutoff", "10000")) * (100 + salesTaxLowRate))/100;

	private static Properties readProperties(){

		Properties props = new Properties();

		try {

			InputStream is = InvoiceGenerationService.class.getResourceAsStream("/in/shop2020/support/services/InvoiceGenerationService.properties");

			props.load(is);

		} catch (IOException e) {

			logger.error("Error while reading properties file.", e);

		}

		return props;

	}

	public InvoiceGenerationService() {

		try {

			tsc = new TransactionServiceClient();

			csc = new CatalogServiceClient();

			lsc = new LogisticsServiceClient();

		} catch (Exception e) {

			logger.error("Error while instantiating thrift clients.", e);

		}

	}

	public ByteArrayOutputStream generateInvoice(long orderId) {

		ByteArrayOutputStream baosPDF = null;

		in.shop2020.model.v1.order.TransactionService.Client tclient = tsc.getClient();

		Client iclient = csc.getClient();

		in.shop2020.logistics.LogisticsService.Client logisticsClient = lsc.getClient();

		Order order = null;

		Warehouse warehouse = null;

		Provider provider = null;

		String destCode = null;

		int barcodeFontSize = 0;

		try {

			order = tclient.getOrder(orderId);

			warehouse = iclient.getWarehouse(order.getWarehouse_id());

			long providerId = order.getLogistics_provider_id();

			provider = logisticsClient.getProvider(providerId);

			destCode = logisticsClient.getDestinationCode(providerId, order.getCustomer_pincode());

			barcodeFontSize = Integer.parseInt(ConfigClient.getClient().get(provider.getName().toLowerCase() + "_barcode_fontsize"));

		} catch (TransactionServiceException tse) {

			logger.error("Error while getting order information", tse);

			return baosPDF;

		} catch (InventoryServiceException ise) {

			logger.error("Error while getting the warehouse information.", ise);

			return baosPDF;

		} catch (LogisticsServiceException lse) {

			logger.error("Error while getting the provider information.", lse);

			return baosPDF;

		} catch (ConfigException ce) {

			logger.error("Error while getting the fontsize for the given provider", ce);

			return baosPDF;

		} catch (TException te) {

			logger.error("Error while getting some essential information from the services", te);

			return baosPDF;

		}

		try {

			baosPDF = new ByteArrayOutputStream();

			Document document = new Document();

			PdfWriter.getInstance(document, baosPDF);

			document.addAuthor("shop2020");

			document.addTitle("Invoice No: " + order.getInvoice_number());

			document.open();

			PdfPTable dispatchAdviceTable = getDispatchAdviceTable(order, warehouse, provider, barcodeFontSize, destCode);

			dispatchAdviceTable.setSpacingAfter(10.0f);

			dispatchAdviceTable.setWidthPercentage(90.0f);

			PdfPTable taxTable = getTaxCumRetailInvoiceTable(order, provider);

			taxTable.setSpacingBefore(5.0f);

			taxTable.setWidthPercentage(90.0f);

			document.add(dispatchAdviceTable);

			document.add(new DottedLineSeparator());

			document.add(taxTable);

			document.close();

			baosPDF.close();

		} catch (Exception e) {

			logger.error("Error while generating Invoice: ", e);

		}

		return baosPDF;

	}

	private PdfPTable getDispatchAdviceTable(Order order, Warehouse warehouse, Provider provider, float barcodeFontSize, String destCode){

		Font barCodeFont = getBarCodeFont(provider, barcodeFontSize);

		PdfPTable table = new PdfPTable(1);

		table.getDefaultCell().setBorder(Rectangle.NO_BORDER);

		PdfPCell logoCell = getLogoCell();

		PdfPCell titleCell = getTitleCell();

		PdfPTable customerTable = getCustomerAddressTable(order, destCode, false, helvetica12);

		PdfPTable providerInfoTable = getProviderTable(order, provider, barCodeFont);

		PdfPTable dispatchTable = new PdfPTable(new float[]{0.5f, 0.1f, 0.4f});

		dispatchTable.getDefaultCell().setBorder(Rectangle.NO_BORDER);

		dispatchTable.addCell(customerTable);

		dispatchTable.addCell(new Phrase(" "));

		dispatchTable.addCell(providerInfoTable);

		PdfPTable invoiceTable = getTopInvoiceTable(order);

		PdfPCell addressCell = getAddressCell();

		table.addCell(logoCell);

		table.addCell(titleCell);

		table.addCell(dispatchTable);

		table.addCell(invoiceTable);

		table.addCell(new Phrase("If undelivered, return to:", helvetica10));

		table.addCell(addressCell);

		table.addCell(new Phrase("Do not pay any extra charges to the Courier."));

		return table;

	}

	private Font getBarCodeFont(Provider provider, float barcodeFontSize) {

		String fontPath = InvoiceGenerationService.class.getResource("/" + provider.getName().toLowerCase() + "/barcode.TTF").getPath();

		FontFactoryImp ttfFontFactory = new FontFactoryImp();

		ttfFontFactory.register(fontPath, "barcode");

		Font barCodeFont = ttfFontFactory.getFont("barcode", BaseFont.CP1252, true, barcodeFontSize);

		return barCodeFont;

	}

	private PdfPCell getLogoCell() {

		String logoPath = InvoiceGenerationService.class.getResource("/logo.jpg").getPath();

		PdfPCell logoCell;

		try {

			logoCell = new PdfPCell(Image.getInstance(logoPath), false);

		} catch (Exception e) {

			//Too Many exceptions to catch here: BadElementException, MalformedURLException and IOException

			logger.warn("Couldn't load the Saholic logo: ", e);

			logoCell = new PdfPCell(new Phrase("Saholic Logo"));

		}

		logoCell.setBorder(Rectangle.NO_BORDER);

		return logoCell;

	}

	private PdfPCell getTitleCell() {

		PdfPCell titleCell = new PdfPCell(new Phrase("Dispatch Advice",	helveticaBold12));

		titleCell.setHorizontalAlignment(Element.ALIGN_CENTER);

		titleCell.setBorder(Rectangle.NO_BORDER);

		return titleCell;

	}

	private PdfPTable getProviderTable(Order order, Provider provider, Font barCodeFont) {

		PdfPTable providerInfoTable = new PdfPTable(1);

		providerInfoTable.getDefaultCell().setBorder(Rectangle.NO_BORDER);

		PdfPCell providerNameCell = new PdfPCell(new Phrase(provider.getName(), helveticaBold12));

		providerNameCell.setHorizontalAlignment(Element.ALIGN_LEFT);

		providerNameCell.setBorder(Rectangle.NO_BORDER);

		PdfPCell awbNumberCell = new PdfPCell(new Paragraph("*" + order.getAirwaybill_no() + "*", barCodeFont));

		awbNumberCell.setPaddingTop(20.0f);

		awbNumberCell.setVerticalAlignment(Element.ALIGN_MIDDLE);

		awbNumberCell.setBorder(Rectangle.NO_BORDER);

		providerInfoTable.addCell(providerNameCell);

		providerInfoTable.addCell(awbNumberCell);

		providerInfoTable.addCell(new Phrase("Account No : " + provider.getDetails().get(DeliveryType.PREPAID).getAccountNo(), helvetica8));

		providerInfoTable.addCell(new Phrase("AWB Date   : " + DateFormat.getDateInstance(DateFormat.MEDIUM).format(new Date()), helvetica8));

		providerInfoTable.addCell(new Phrase("Weight         : " + order.getTotal_weight() + " Kg", helvetica8));

		return providerInfoTable;

	}

	private PdfPTable getTopInvoiceTable(Order order){

		PdfPTable invoiceTable = new PdfPTable(new float[]{0.2f, 0.2f, 0.3f, 0.1f, 0.1f, 0.1f});

		invoiceTable.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER);

		invoiceTable.addCell(getInvoiceTableHeader(6));

		invoiceTable.addCell(new Phrase("Order No", helvetica8));

		invoiceTable.addCell(new Phrase("Paymode", helvetica8));

		invoiceTable.addCell(new Phrase("Product Name", helvetica8));

		invoiceTable.addCell(new Phrase("Quantity", helvetica8));

		invoiceTable.addCell(new Phrase("Rate", helvetica8));

		invoiceTable.addCell(new Phrase("Amount", helvetica8));

		populateTopInvoiceTable(order, invoiceTable);

		invoiceTable.addCell(getTotalCell(4));		

		invoiceTable.addCell(getRupeesCell());

		invoiceTable.addCell(getTotalAmountCell(order.getTotal_amount()));

		PdfPCell tinCell = new PdfPCell(new Phrase("TIN NO. " + tinNo, helvetica8));

		tinCell.setColspan(6);

		tinCell.setPadding(2);

		invoiceTable.addCell(tinCell);

		return invoiceTable;

	}

	private void populateTopInvoiceTable(Order order, PdfPTable invoiceTable) {

		List<LineItem> lineitems = order.getLineitems();

		for (LineItem lineitem : lineitems) {

			invoiceTable.addCell(new Phrase(order.getId() + "", helvetica8));

			invoiceTable.addCell(new Phrase("Prepaid", helvetica8));

			invoiceTable.addCell(getProductNameCell(lineitem, false));

			invoiceTable.addCell(new Phrase(lineitem.getQuantity() + "", helvetica8));

			invoiceTable.addCell(getPriceCell(lineitem.getUnit_price()));

			invoiceTable.addCell(getPriceCell(lineitem.getTotal_price()));

		}

	}

	private PdfPCell getAddressCell() {

		Paragraph addressParagraph = new Paragraph(ourAddress, new Font(FontFamily.TIMES_ROMAN, 8f));

		PdfPCell addressCell = new PdfPCell();

		addressCell.addElement(addressParagraph);

		addressCell.setHorizontalAlignment(Element.ALIGN_LEFT);

		addressCell.setBorder(Rectangle.NO_BORDER);

		return addressCell;

	}

	private PdfPTable getTaxCumRetailInvoiceTable(Order order, Provider provider){

		PdfPTable taxTable = new PdfPTable(1);

		taxTable.getDefaultCell().setBorder(Rectangle.NO_BORDER);

		taxTable.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER);

		PdfPCell retailInvoiceTitleCell = new PdfPCell(new Phrase("TAX CUM RETAIL INVOICE", helveticaBold12));

		retailInvoiceTitleCell.setHorizontalAlignment(Element.ALIGN_CENTER);

		retailInvoiceTitleCell.setBorder(Rectangle.NO_BORDER);

		Paragraph sorlAddress = new Paragraph(ourAddress + "TIN NO. " + tinNo, new Font(FontFamily.TIMES_ROMAN, 8f, Element.ALIGN_CENTER));

		PdfPCell sorlAddressCell = new PdfPCell(sorlAddress);

		sorlAddressCell.addElement(sorlAddress);

		sorlAddressCell.setHorizontalAlignment(Element.ALIGN_CENTER);

		PdfPTable customerAddress = getCustomerAddressTable(order, null, true, helvetica8);

		PdfPTable orderDetails = getOrderDetails(order, provider);

		PdfPTable addrAndOrderDetailsTable = new PdfPTable(new float[]{0.5f, 0.1f, 0.4f});

		addrAndOrderDetailsTable.getDefaultCell().setBorder(Rectangle.NO_BORDER);

		addrAndOrderDetailsTable.addCell(customerAddress);

		addrAndOrderDetailsTable.addCell(new Phrase(" "));

		addrAndOrderDetailsTable.addCell(orderDetails);

		boolean isVAT = order.getCustomer_pincode().startsWith(delhiPincodePrefix);

		PdfPTable invoiceTable = getBottomInvoiceTable(order, isVAT);

		PdfPCell disclaimerCell = new PdfPCell(new Phrase("Goods once sold will not be taken back.\nAll disputes subject to Delhi Jurisdiction.", helvetica8));

		disclaimerCell.setHorizontalAlignment(Element.ALIGN_LEFT);

		disclaimerCell.setBorder(Rectangle.NO_BORDER);

		taxTable.addCell(retailInvoiceTitleCell);

		taxTable.addCell(sorlAddress);

		taxTable.addCell(addrAndOrderDetailsTable);

		taxTable.addCell(invoiceTable);

		taxTable.addCell(disclaimerCell);

		return taxTable;

	}

	private PdfPTable getCustomerAddressTable(Order order, String destCode, boolean showPaymentMode, Font font){

		PdfPTable customerTable = new PdfPTable(1);

		customerTable.getDefaultCell().setBorder(Rectangle.NO_BORDER);

		customerTable.addCell(new Phrase(order.getCustomer_name(), font));

		customerTable.addCell(new Phrase(order.getCustomer_address1(), font));

		customerTable.addCell(new Phrase(order.getCustomer_address2(), font));

		customerTable.addCell(new Phrase(order.getCustomer_city() + "," + order.getCustomer_state(), font));

		if(destCode != null)

			customerTable.addCell(new Phrase(order.getCustomer_pincode() + " - " + destCode, helvetica16));

		else

			customerTable.addCell(new Phrase(order.getCustomer_pincode(), font));

		customerTable.addCell(new Phrase("Phone :" + order.getCustomer_mobilenumber(), font));

		if(showPaymentMode){

			customerTable.addCell(new Phrase(" ", font));

			customerTable.addCell(new Phrase("Payment Mode: Prepaid", font));

		}

		return customerTable;

	}

	private PdfPTable getOrderDetails(Order order, Provider provider){

		PdfPTable orderTable = new PdfPTable(new float[]{0.4f, 0.6f});

		orderTable.getDefaultCell().setBorder(Rectangle.NO_BORDER);

		orderTable.addCell(new Phrase("Invoice No:", helvetica8));

		orderTable.addCell(new Phrase(order.getInvoice_number(), helvetica8));

		orderTable.addCell(new Phrase("Date:", helvetica8));

		orderTable.addCell(new Phrase(DateFormat.getDateInstance(DateFormat.MEDIUM).format(new Date(order.getBilling_timestamp())), helvetica8));

		orderTable.addCell(new Phrase(" "));

		orderTable.addCell(new Phrase(" "));

		orderTable.addCell(new Phrase("Order ID:", helvetica8));

		orderTable.addCell(new Phrase("" + order.getId(), helvetica8));

		orderTable.addCell(new Phrase("Order Date:", helvetica8));

		orderTable.addCell(new Phrase(DateFormat.getDateInstance(DateFormat.MEDIUM).format(new Date(order.getCreated_timestamp())), helvetica8));

		orderTable.addCell(new Phrase("Courier:", helvetica8));

		orderTable.addCell(new Phrase(provider.getName(), helvetica8));

		orderTable.addCell(new Phrase("AWB No:", helvetica8));

		orderTable.addCell(new Phrase(order.getAirwaybill_no(), helvetica8));

		orderTable.addCell(new Phrase("AWB Date:", helvetica8));

		orderTable.addCell(new Phrase(DateFormat.getDateInstance(DateFormat.MEDIUM).format(new Date()), helvetica8));

		return orderTable;

	}

	private PdfPTable getBottomInvoiceTable(Order order, boolean isVAT){

		PdfPTable invoiceTable = new PdfPTable(new float[]{0.2f, 0.5f, 0.1f, 0.1f, 0.1f});

		invoiceTable.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER);

		invoiceTable.addCell(getInvoiceTableHeader(5));

		invoiceTable.addCell(new Phrase("Sl. No.", helveticaBold8));

		invoiceTable.addCell(new Phrase("Description", helveticaBold8));

		invoiceTable.addCell(new Phrase("Quantity", helveticaBold8));

		invoiceTable.addCell(new Phrase("Rate (Rs)", helveticaBold8));

		invoiceTable.addCell(new Phrase("Amount (Rs)", helveticaBold8));

		double orderAmount = order.getTotal_amount();

		double rate = getTaxRate(orderAmount);

		double salesTax = (rate * orderAmount)/(100 + rate);

		populateBottomInvoiceTable(order, invoiceTable, rate);

		PdfPCell salesTaxCell = getPriceCell(salesTax);

		invoiceTable.addCell(getVATLabelCell(isVAT));

		invoiceTable.addCell(new Phrase(rate + "%", helvetica8));

		invoiceTable.addCell(salesTaxCell);

		invoiceTable.addCell(getEmptyCell(5));

		invoiceTable.addCell(getTotalCell(3));

		invoiceTable.addCell(getRupeesCell());

		invoiceTable.addCell(getTotalAmountCell(orderAmount));

		invoiceTable.addCell(new Phrase("Amount in Words:", helvetica8));

		invoiceTable.addCell(getAmountInWordsCell(orderAmount));

		invoiceTable.addCell(getEOECell(5));

		return invoiceTable;

	}

	private PdfPCell getInvoiceTableHeader(int colspan) {

		PdfPCell invoiceTableHeader = new PdfPCell(new Phrase("Order Details:", helveticaBold12));

		invoiceTableHeader.setBorder(Rectangle.NO_BORDER);

		invoiceTableHeader.setColspan(colspan);

		invoiceTableHeader.setPaddingTop(10);

		return invoiceTableHeader;

	}

	private double getTaxRate(double orderAmount) {

		double rate;

		if(orderAmount <= salesTaxCutOff){

			rate = salesTaxLowRate;

		} else {

			rate = salesTaxHighRate;

		}

		return rate;

	}

	private void populateBottomInvoiceTable(Order order, PdfPTable invoiceTable, double rate) {

		for (LineItem lineitem : order.getLineitems()) {

			invoiceTable.addCell(new Phrase("" + order.getId() , helvetica8));

			invoiceTable.addCell(getProductNameCell(lineitem, true));

			invoiceTable.addCell(new Phrase("" + lineitem.getQuantity(), helvetica8));

			double itemPrice = lineitem.getUnit_price();

			double showPrice = (100 * itemPrice)/(100 + rate);

			invoiceTable.addCell(getPriceCell(showPrice)); //Unit Price Cell

			double totalPrice = lineitem.getTotal_price();

			showPrice = (100 * totalPrice)/(100 + rate);

			invoiceTable.addCell(getPriceCell(showPrice));	//Total Price Cell

		}

	}

	private PdfPCell getProductNameCell(LineItem lineitem, boolean appendIMEI) {

		String itemName = getItemDisplayName(lineitem, appendIMEI);

		PdfPCell productNameCell = new PdfPCell(new Phrase(itemName, helvetica8));

		productNameCell.setHorizontalAlignment(Element.ALIGN_LEFT);

		return productNameCell;

	}

	private PdfPCell getPriceCell(double price) {

		PdfPCell totalPriceCell = new PdfPCell(new Phrase(amountFormat.format(price), helvetica8));

		totalPriceCell.setHorizontalAlignment(Element.ALIGN_RIGHT);

		return totalPriceCell;

	}

	private PdfPCell getVATLabelCell(boolean isVAT) {

		PdfPCell vatCell = null;

		if(isVAT){

			vatCell = new PdfPCell(new Phrase("VAT", helveticaBold8));

		} else {

			vatCell = new PdfPCell(new Phrase("CST", helveticaBold8));

		}

		vatCell.setColspan(3);

		vatCell.setHorizontalAlignment(Element.ALIGN_RIGHT);

		return vatCell;

	}

	private PdfPCell getEmptyCell(int colspan) {

		PdfPCell emptyCell = new PdfPCell(new Phrase(" ", helvetica8));

		emptyCell.setColspan(colspan);

		return emptyCell;

	}

	private PdfPCell getTotalCell(int colspan) {

		PdfPCell totalCell = new PdfPCell(new Phrase("Total", helveticaBold8));

		totalCell.setColspan(colspan);

		totalCell.setHorizontalAlignment(Element.ALIGN_RIGHT);

		return totalCell;

	}

	private PdfPCell getRupeesCell() {

		PdfPCell rupeesCell = new PdfPCell(new Phrase("Rs.", helveticaBold8));

		rupeesCell.setHorizontalAlignment(Element.ALIGN_RIGHT);

		return rupeesCell;

	}

	private PdfPCell getTotalAmountCell(double orderAmount) {

		PdfPCell totalAmountCell = new PdfPCell(new Phrase(amountFormat.format(orderAmount), helveticaBold8));

		totalAmountCell.setHorizontalAlignment(Element.ALIGN_RIGHT);

		return totalAmountCell;

	}

	/**

	 * This method uses ICU4J libraries to convert the given amount into words

	 * of Indian locale.

	 * 

	 * @param orderAmount

	 *            The amount to convert.

	 * @return the string representation of the given amount.

	 */

	private PdfPCell getAmountInWordsCell(double orderAmount) {

		RuleBasedNumberFormat amountInWordsFormat = new RuleBasedNumberFormat(indianLocale, RuleBasedNumberFormat.SPELLOUT);

		StringBuilder amountInWords = new StringBuilder("Rs. ");

		amountInWords.append(WordUtils.capitalize(amountInWordsFormat.format((int)orderAmount)));

		amountInWords.append(" and ");

		amountInWords.append(WordUtils.capitalize(amountInWordsFormat.format((int)(orderAmount*100)%100)));

		amountInWords.append(" paise");

		PdfPCell amountInWordsCell= new PdfPCell(new Phrase(amountInWords.toString(), helveticaBold8));

		amountInWordsCell.setColspan(4);

		return amountInWordsCell;

	}

	/**

	 * Returns the item name to be displayed in the invoice table.

	 * 

	 * @param lineitem

	 *            The line item whose name has to be displayed

	 * @param appendIMEI

	 *            Whether to attach the IMEI No. to the item name

	 * @return The name to be displayed for the given line item.

	 */

	private String getItemDisplayName(LineItem lineitem, boolean appendIMEI){

		StringBuffer itemName = new StringBuffer();

		if(lineitem.getBrand()!= null)

			itemName.append(lineitem.getBrand() + " ");

		if(lineitem.getModel_name() != null)

			itemName.append(lineitem.getModel_name() + " ");

		if(lineitem.getModel_number() != null )

			itemName.append(lineitem.getModel_number() + " ");

		if(lineitem.getColor() != null && !lineitem.getColor().trim().equals("NA"))

			itemName.append("("+lineitem.getColor()+")");

		if(appendIMEI && lineitem.isSetImei_number()){

			itemName.append("\nIMEI No. " + lineitem.getImei_number());

		}

		return itemName.toString();

	}

	/**

	 * 

	 * @param colspan

	 * @return a PdfPCell containing the E&OE text and spanning the given

	 *         no. of columns

	 */

	private PdfPCell getEOECell(int colspan) {

		PdfPCell eoeCell = new PdfPCell(new Phrase("E & O.E", helvetica8));

		eoeCell.setColspan(colspan);

		eoeCell.setHorizontalAlignment(Element.ALIGN_RIGHT);

		return eoeCell;

	}

	public static void main(String[] args) throws IOException {

		InvoiceGenerationService invoiceGenerationService = new InvoiceGenerationService();

		long orderId = 434;

		ByteArrayOutputStream baos = invoiceGenerationService.generateInvoice(orderId);

		String userHome = System.getProperty("user.home");

		File f = new File(userHome + "/invoice-" + orderId + ".pdf");

		FileOutputStream fos = new FileOutputStream(f);

		baos.writeTo(fos);

		System.out.println("Invoice generated.");

	}

}