Download functionality of Pdf in bench marking module

The pdf created contains module, submodule, maximum score, actual score, weighted score, etc.. Also the module details and sub module details are proerly distinguished .

import java.awt.Color;
import java.io.ByteArrayInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;

import org.apache.struts.actions.DownloadAction.StreamInfo;

import jxl.format.Colour;
import jxl.write.WriteException;


import com.itextpdf.text.Anchor;
import com.itextpdf.text.BadElementException;
import com.itextpdf.text.BaseColor;
import com.itextpdf.text.Chapter;
import com.itextpdf.text.DocListener;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.Font;
import com.itextpdf.text.Image;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.Section;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfPageEventHelper;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfStamper;
import com.itextpdf.text.pdf.PdfTemplate;
import com.itextpdf.text.pdf.PdfWriter;
import com.sun.xml.internal.messaging.saaj.util.ByteOutputStream;

public class BenchMarkingConvertToPdfService extends PdfPageEventHelper {

 private static String FILE = "c:/DownloadPdf.pdf";
 private static Font catFont = new Font(Font.FontFamily.TIMES_ROMAN, 18,
   Font.BOLD);
 private static Font redFont = new Font(Font.FontFamily.TIMES_ROMAN, 12,
   Font.NORMAL, BaseColor.RED);
 private static Font subFont = new Font(Font.FontFamily.TIMES_ROMAN, 14,
   Font.BOLD);
 private static Font smallBold = new Font(Font.FontFamily.TIMES_ROMAN, 12,
   Font.BOLD);

 private String inputFile;
 private static final String DATE_PATTERN = "dd-MMM-yy HH:mm:ss a";

 private static final String PAGE_NUMBER = "Page %d";

 private static final String ART = "art";

 private static final Font PARENT_MODULE_FONT = new Font(
   Font.FontFamily.TIMES_ROMAN, ErfConstants.CHILD_FONT, Font.NORMAL);
 private static final Font SUB_MODULE_FONT = new Font(
   Font.FontFamily.TIMES_ROMAN, ErfConstants.CHILD_FONT, Font.NORMAL);
 private static final Font DESCRIPTION_FONT = new Font(
   Font.FontFamily.TIMES_ROMAN, ErfConstants.CHILD_FONT);
/* private static final Font DESCRIPTION_FONT1 = new Font(
   Font.FontFamily.TIMES_ROMAN, ErfConstants.CHILD_FONT);*/
 
 private static final Font RELEVANCY_FONT = new Font(
   Font.FontFamily.TIMES_ROMAN, ErfConstants.CHILD_FONT, Font.NORMAL);
 private static final Font COLUMN_HEADING_FONT = new Font(
   Font.FontFamily.TIMES_ROMAN, ErfConstants.CHILD_FONT, Font.NORMAL);
 private static final Font USER_DEF_REQ_FONT = new Font(
   Font.FontFamily.TIMES_ROMAN, ErfConstants.CHILD_FONT, Font.NORMAL,
   new BaseColor(200, 30, 30));

 //private static final String PROJECT_NAME = "Project Name  :  ";
 
 private static final String MODULE     = "Module     :   ";
 
 private static final String SUB_MODULE = "Sub Module   :   ";

 private static final String BREAKLINE = "nn";

 private static final Rectangle RECTANGLE = new Rectangle(36, 54, 559, 788);

 private static BenchMarkingConvertToPdfService benchMarkingconvertToPdfService = null;

 static int pagenumber;

 PdfTemplate total;

 public static synchronized BenchMarkingConvertToPdfService getInstance() {

  pagenumber = 0;

  if (benchMarkingconvertToPdfService == null) {

   benchMarkingconvertToPdfService = new BenchMarkingConvertToPdfService();

  }

  return benchMarkingconvertToPdfService;
 }

 BenchMarkingConvertToPdfService() {

 }

 public void onStartPage(PdfWriter writer, Document document) {
  pagenumber++;
 }
 public byte[] convertToPdfService(List<BenchMarkingPdfBean> benchMarkingPdfBeanList,Map<Long,Integer> reqPerSubModule) 
   throws DocumentException, IOException {
  Document document = new Document(PageSize.A4,
    ErfConstants.DOCUMENT_MARGINLEFT,
    ErfConstants.DOCUMENT_MARGINRIGHT,
    ErfConstants.DOCUMENT_MARGINTOP,
    ErfConstants.DOCUMENT_MARGINBOTTOM);
  ByteOutputStream out = new ByteOutputStream();
  PdfWriter writer = PdfWriter.getInstance(document, out);

  BenchMarkingConvertToPdfService event = BenchMarkingConvertToPdfService.getInstance();
  writer.setBoxSize(ART, RECTANGLE);
  writer.setPageEvent(event);
  

  document.open();  
  
  

  float[] colsWidth = {ErfConstants.FEATURES_COLUMNWIDTH,
    ErfConstants.RELEVANCY_COLUMNWIDTH,
    ErfConstants.EVALDIM_COLUMNWIDTH,
    ErfConstants.WEIGHTAGE_COLUMNWIDTH,
    ErfConstants.MAXSCORE_COLUMNWIDTH, 
    ErfConstants.ACTUALSCORE_COLUMNWIDTH,
    ErfConstants.WEIGHTEDSCORE_COLUMNWIDTH,
    ErfConstants.WEIGHTEDSCORE_COLUMNWIDTH,
    ErfConstants.SCORE0_COLUMNWIDTH,
    ErfConstants.SCORE1_COLUMNWIDTH,
    ErfConstants.SCORE2_COLUMNWIDTH,
    ErfConstants.SCORE3_COLUMNWIDTH};

  PdfPTable table = new PdfPTable(colsWidth);
  table.setWidthPercentage(100f);
  

  float[] cols1Width = {ErfConstants.SCORE0_COLUMNWIDTH,
    ErfConstants.SCORE1_COLUMNWIDTH,
    ErfConstants.SCORE2_COLUMNWIDTH,
    ErfConstants.SCORE3_COLUMNWIDTH};
  
  PdfPTable table1= new PdfPTable(cols1Width);
  table1.setWidthPercentage(30f);
  
  
  PdfPCell c1; 
  PdfPCell c3;
  String submodule="";
 
  PdfPCell cweightedscore = new PdfPCell(new Phrase("weightedscore"));
  cweightedscore.setBackgroundColor(new BaseColor(255, 204, 0));

  Image image = Image
    .getInstance("http://localhost:9080/EcommerceRequirementFramework/images/header.jpg");
  // image.scaleToFit(400F, 6000F);
  image.scalePercent(54, 40);

  document.add(image);
 

  document.add(new Paragraph(BREAKLINE, DESCRIPTION_FONT));

  // document.add(new Paragraph(BREAKLINE,DESCRIPTION_FONT));

  Image checkedImage = Image
    .getInstance("http://localhost:9080/EcommerceRequirementFramework/images/Tick36.jpg");

  checkedImage.scalePercent(20, 20);



 
  for(int i=0;i<benchMarkingPdfBeanList.size();i++){    
  System.out.println("benchMarkingPdfBeanList.get(i).getParentModulespan()"+benchMarkingPdfBeanList.get(i).getParentModulespan());
  
   if( benchMarkingPdfBeanList.get(i).getParentModulespan()!=0)
   { 
    
    document.add(new Paragraph(MODULE + benchMarkingPdfBeanList.get(i).getFunctionalModules(), catFont));
    //document.add(new Phrase("Score Evaluation Criteria",catFont));

   } 
  if(benchMarkingPdfBeanList.get(i).getSubModulespan()!=0)
  {
 
   submodule=benchMarkingPdfBeanList.get(i).getSubModules();
   System.out.println("submodule"+submodule);
   c3 = new PdfPCell(new Phrase("Features"));
   c3.setBackgroundColor(BaseColor.GRAY);
   c3.setHorizontalAlignment(Element.ALIGN_CENTER);

   table.addCell(c3);

   c1 = new PdfPCell(new Phrase("Relevancy"));
   c1.setBackgroundColor(BaseColor.GRAY);
   c1.setHorizontalAlignment(Element.ALIGN_CENTER);
   table.addCell(c1);

   c1 = new PdfPCell(new Phrase("Importance Dimension"));
   c1.setBackgroundColor(BaseColor.GRAY);
   c1.setHorizontalAlignment(Element.ALIGN_CENTER);
   table.addCell(c1);

   c1 = new PdfPCell(new Phrase("Weightage"));
   c1.setBackgroundColor(BaseColor.GRAY);
   c1.setHorizontalAlignment(Element.ALIGN_CENTER);
   table.addCell(c1);

   c1 = new PdfPCell(new Phrase("Maximum Score"));
   c1.setBackgroundColor(BaseColor.GRAY);
   c1.setHorizontalAlignment(Element.ALIGN_CENTER);
   table.addCell(c1);

   c1 = new PdfPCell(new Phrase("Actual Score"));
   c1.setBackgroundColor(BaseColor.GRAY);
   c1.setHorizontalAlignment(Element.ALIGN_CENTER);
   table.addCell(c1);

   c1 = new PdfPCell(new Phrase("Weighted Score"));
   c1.setBackgroundColor(BaseColor.GRAY);
   c1.setHorizontalAlignment(Element.ALIGN_CENTER);
   table.addCell(c1);
   
   c1 = new PdfPCell(new Phrase(""));
   c1.setBackgroundColor(BaseColor.WHITE);
   /*c1.setHorizontalAlignment(Element.ALIGN_CENTER);*/
   c1.setBorder(0);
   table.addCell(c1);
   
   c1 = new PdfPCell(new Phrase("0"));
   c1.setBackgroundColor(BaseColor.GRAY);
   c1.setHorizontalAlignment(Element.ALIGN_CENTER);
   table.addCell(c1);
   
   
   c1 = new PdfPCell(new Phrase("1"));
   c1.setBackgroundColor(BaseColor.GRAY);
   c1.setHorizontalAlignment(Element.ALIGN_CENTER);
   table.addCell(c1);
   
   c1 = new PdfPCell(new Phrase("2"));
   c1.setBackgroundColor(BaseColor.GRAY);
   c1.setHorizontalAlignment(Element.ALIGN_CENTER);
   table.addCell(c1);
   
   c1 = new PdfPCell(new Phrase("3"));
   c1.setBackgroundColor(BaseColor.GRAY);
   c1.setHorizontalAlignment(Element.ALIGN_CENTER);
   table.addCell(c1);
   
   //table.setHeaderRows(1); 
  }
   table.addCell(new Phrase(benchMarkingPdfBeanList.get(i).getFeatures(),DESCRIPTION_FONT));
   table.addCell(new Phrase(benchMarkingPdfBeanList.get(i).getRelevancy(),DESCRIPTION_FONT));
   table.addCell(new Phrase(benchMarkingPdfBeanList.get(i).getImportanceDimension(),DESCRIPTION_FONT));
   if(benchMarkingPdfBeanList.get(i).getWeightage()!=null)
   {
   table.addCell(new Phrase(benchMarkingPdfBeanList.get(i).getWeightage().toString(),DESCRIPTION_FONT));
     
   }
   else
   {
    table.addCell("");            
   }
   if(benchMarkingPdfBeanList.get(i).getMaximumScore()!=null)
   table.addCell(new Phrase(benchMarkingPdfBeanList.get(i).getMaximumScore().toString(),DESCRIPTION_FONT));
   else
   table.addCell("");
   if(benchMarkingPdfBeanList.get(i).getActualScore()!=null)
   table.addCell(new Phrase(benchMarkingPdfBeanList.get(i).getActualScore().toString(),DESCRIPTION_FONT));
   else
    table.addCell("");
   table.addCell(new Phrase(benchMarkingPdfBeanList.get(i).getWeightedScore().toString(),DESCRIPTION_FONT)); 
   if(benchMarkingPdfBeanList.get(i).getScoreCriteria0()!=null)
   {
    c1 = new PdfPCell(new Phrase(""));
    
    c1.setBorder(0);
    //c1.setBorderColor(BaseColor.WHITE);
    table.addCell(c1);
    
    
    
    table.addCell(new Phrase(benchMarkingPdfBeanList.get(i).getScoreCriteria0(),DESCRIPTION_FONT));
    table.addCell(new Phrase(benchMarkingPdfBeanList.get(i).getScoreCriteria1(),DESCRIPTION_FONT));
    table.addCell(new Phrase(benchMarkingPdfBeanList.get(i).getScoreCriteria2(),DESCRIPTION_FONT));
    table.addCell(new Phrase(benchMarkingPdfBeanList.get(i).getScoreCriteria3(),DESCRIPTION_FONT));
  
   }
   else
   {
    c1 = new PdfPCell(new Phrase(""));
    c1.setBorder(0);
    table.addCell(c1);
    c1 = new PdfPCell(new Phrase(""));      
    table.addCell(c1);
    table.addCell(new Phrase("",DESCRIPTION_FONT));
    table.addCell(new Phrase("",DESCRIPTION_FONT));
    table.addCell(new Phrase("",DESCRIPTION_FONT));
  
   }
  
   
  if(  (i<(benchMarkingPdfBeanList.size()-1)&& benchMarkingPdfBeanList.get(i+1).getSubModulespan()!=0) ||(i==(benchMarkingPdfBeanList.size()-1)))
  {
    
   document.add(new Paragraph(SUB_MODULE + submodule +"tttttttttttttttttttttttttttttttttttttttttttt   Score Evaluation Criteria", subFont));   
   document.add(new Paragraph(BREAKLINE, DESCRIPTION_FONT));
   document.add(table);
   document.add(new Paragraph(BREAKLINE, DESCRIPTION_FONT));
   table= new PdfPTable(colsWidth);
   table.setWidthPercentage(100f);

  }  
  }
  document.close();
  
  PdfReader reader = new PdfReader(new ByteArrayInputStream(out.getBytes()));
  int n = reader.getNumberOfPages();

  // Create a stamper that will copy the document to a new file
  PdfStamper stamp = new PdfStamper(reader, out);
  int i = 1;
  PdfContentByte under;

  Image img = Image
    .getInstance("http://localhost:9080/EcommerceRequirementFramework/images/watermark.jpg");



  while (i <= n) {

   img.setAbsolutePosition(40, 100);

   under = stamp.getUnderContent(i);
   under.addImage(img);

   // Text over the existing page
   /*
    * over = stamp.getOverContent(i); over.beginText();
    * over.setFontAndSize(bf, 18); over.showText("page " + i);
    * over.endText();
    */

   i++;
  }
  stamp.close();
  return out.getBytes();
 }

 /**
  * Adds the header and the footer.
  * 
  * @see com.itextpdf.text.pdf.PdfPageEventHelper#onEndPage(com.itextpdf.text.pdf.PdfWriter,
  *      com.itextpdf.text.Document)
  */
 public void onEndPage(PdfWriter writer, Document document) {

  Rectangle rect = writer.getBoxSize(ART);
  ColumnText.showTextAligned(writer.getDirectContent(),
    Element.ALIGN_CENTER, new Phrase(String.format(PAGE_NUMBER,
      pagenumber)), (rect.getLeft() + rect.getRight()) / 2,
    rect.getBottom() - 18, 0);
  ColumnText.showTextAligned(writer.getDirectContent(),
    Element.ALIGN_LEFT, new Phrase(), rect
      .getLeft(), rect.getBottom() - 18, 0);
  ColumnText.showTextAligned(writer.getDirectContent(),
    Element.ALIGN_RIGHT, new Phrase(new SimpleDateFormat(
      DATE_PATTERN).format(new Date())), rect.getRight(),
    rect.getBottom() - 18, 0);
 }

 
 protected class ByteArrayStreamInfo implements StreamInfo {

  protected String contentType;
  protected byte[] bytes;

  public ByteArrayStreamInfo(String contentType, byte[] bytes) {
   this.contentType = contentType;
   this.bytes = bytes;
  }

  public String getContentType() {
   return contentType;
  }

  public InputStream getInputStream() throws IOException {
   return new ByteArrayInputStream(bytes);
  }
 }
}