Save dialog box in jsf

[Happy S Singh]

I have created pdf using IText library
Now I want when the user clicks on the button ,it should prompt a save dialog box to the user to allow to browse the destination location to store the file.

Now My code looks like

Document document = new Document();
		try {
			
						FacesContext context = FacesContext.getCurrentInstance();
			HttpServletResponse response = (HttpServletResponse) context.getExternalContext().getResponse();
			response.reset();  
            response.setContentType("application/pdf");
			
			response.setHeader("Content-Disposition", "attachment; filename=ABC.pdf");
			response.setHeader("Cache-Control", "no-cache");  
            response.setDateHeader("Expires", 0);  
            response.setHeader("Pragma", "No-cache");
			PdfWriter.getInstance(document, response.getOutputStream());
			
			document.addTitle("Form");
			document.addSubject("Form");
			
			document.open();

			Paragraph paragraph12 = new Paragraph("FORM",

			FontFactory.getFont(FontFactory.HELVETICA,

			18, Font.BOLD, new CMYKColor(0, 255, 255, 17)));

			Chapter chapter1 = new Chapter(paragraph12, 1);
			paragraph12.setSpacingAfter(25);
			paragraph12.setAlignment(Element.ALIGN_CENTER);
			document.add(paragraph12);
			// Centered

			Chunk underline = new Chunk(AppNo);
			underline.setUnderline(0.2f, -2f);

			Paragraph paragraph = new Paragraph("Application No:");
			paragraph.add(underline);
			paragraph.setAlignment(Element.ALIGN_LEFT);
			paragraph.setSpacingAfter(20);
			document.add(paragraph);
			// Left
			paragraph = new Paragraph("To,");
			paragraph.setAlignment(Element.ALIGN_LEFT);
			document.add(paragraph);
			// Left with indentation
			paragraph = new Paragraph(
					"");
			paragraph.setAlignment(Element.ALIGN_LEFT);
			document.add(paragraph);

			Paragraph paragraph2 = new Paragraph(
					"Subject: ");

			paragraph2.setSpacingAfter(15);
			paragraph2.setSpacingBefore(15);
			paragraph2.setAlignment(Element.ALIGN_LEFT);
			paragraph2.setIndentationRight(50);
			document.add(paragraph2);

			
			
			Paragraph paragraph3 = new Paragraph("I  ");
			String laName=deaclarationOpr.getDeclarationDetailsobj()
					.getLaName();
			if(laName!=null){
			Chunk name = new Chunk(laName);
			name.setUnderline(0.2f, -2f);
			paragraph3.add(name);
			}
			paragraph3.add("  request you to process the Application  ");
			paragraph3.add(underline);
			paragraph3.add("  for product  ");
			
			
			String productName=deaclarationOpr
					.getDeclarationDetailsobj().getProductName();
			if(productName!=null){
			Chunk product = new Chunk(productName);
			product.setUnderline(0.2f, -2f);
			paragraph3.add(product);
			}
			paragraph3
					.add("");

			paragraph3.setSpacingAfter(15);
			paragraph3.setSpacingBefore(15);
			paragraph3.setAlignment(Element.ALIGN_LEFT);
			paragraph3.setIndentationLeft(50);
			paragraph3.setIndentationRight(50);
			document.add(paragraph3);

			Paragraph paragraph4 = new Paragraph(
					"");
			
			
			
			
			
			String code=deaclarationOpr
					.getDeclarationDetailsobj().getAdvisorCode();
			if(code!=null){
			Chunk advisorCode = new Chunk(code);
			advisorCode.setUnderline(0.2f, -2f);
			paragraph4.add(advisorCode);
			}
			paragraph4
					.add("");

			paragraph4.setSpacingAfter(15);
			paragraph4.setSpacingBefore(15);
			paragraph4.setAlignment(Element.ALIGN_LEFT);
			paragraph4.setIndentationLeft(50);
			paragraph4.setIndentationRight(50);
			document.add(paragraph4);

			Paragraph paragraph5 = new Paragraph(
					"");

			paragraph5.setSpacingAfter(15);
			paragraph5.setSpacingBefore(15);
			paragraph5.setAlignment(Element.ALIGN_LEFT);
			paragraph5.setIndentationLeft(50);
			paragraph3.setIndentationRight(50);
			document.add(paragraph5);

			Paragraph paragraph6 = new Paragraph(
					"");

			paragraph6.setSpacingAfter(15);
			paragraph6.setSpacingBefore(15);
			paragraph6.setAlignment(Element.ALIGN_LEFT);
			paragraph6.setIndentationLeft(50);
			paragraph6.setIndentationRight(50);
			document.add(paragraph6);

			Paragraph paragraph7 = new Paragraph("Date:      ");
			DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
			// get current date time with Date()
			Date date = new Date();
			paragraph7.add(dateFormat.format(date));
			paragraph7.setSpacingBefore(15);
			paragraph7.setIndentationLeft(50);
			paragraph7.setIndentationRight(50);
			paragraph7.setAlignment(Element.ALIGN_LEFT);
			document.add(paragraph7);

			Paragraph paragraph8 = new Paragraph("Name of the Proposer:      ");
			
			String propoer=deaclarationOpr
					.getDeclarationDetailsobj().getProposerName();
			if(propoer!=null){
			Chunk proposerName = new Chunk(propoer);
			proposerName.setUnderline(0.2f, -2f);
			paragraph8.add(proposerName);
			}
			paragraph8.setAlignment(Element.ALIGN_LEFT);
			paragraph8.setIndentationLeft(50);
			paragraph8.setIndentationRight(50);
			document.add(paragraph8);

			Paragraph paragraph9 = new Paragraph("Place:      ");
			paragraph9.setIndentationLeft(50);
			paragraph9.setIndentationRight(50);
			paragraph9.setAlignment(Element.ALIGN_LEFT);
			document.add(paragraph9);
			
			
			document.close();
context.responseComplete();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (DocumentException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

Following filters are defined in web.xml

<filter>
    		<display-name>RichFaces Filter</display-name>
    		<filter-name>richfaces</filter-name>
    		<filter-class>org.ajax4jsf.Filter</filter-class>
    		<init-param>
    			<param-name>createTempFiles</param-name>
    			<param-value>false</param-value>
    		</init-param>
    		<init-param>
    			<param-name>maxRequestSize</param-name>
    			<param-value>20000000</param-value>
    		</init-param>
    		<init-param>
    			<param-name>enable-cache</param-name>
    			<param-value>true</param-value>
    		</init-param>
    	</filter>
    	<filter-mapping>
    		<filter-name>richfaces</filter-name>
    		<servlet-name>Faces Servlet</servlet-name>
    		<dispatcher>REQUEST</dispatcher>
    		<dispatcher>FORWARD</dispatcher>
    		<dispatcher>INCLUDE</dispatcher>
    	</filter-mapping>

And the above code is written in the method of Backing Bean class

and invoked

 <tr>
    <td align="center"><a4j:commandButton
    value="Print" styleClass="button"
    action="#{declarationBB.convertToPdf}"></a4j:commandButton></td>
    </tr>

[Tim Holloway]

JSF is designed to output HTML. PDF's are very different than HTML and you should use a non-JSF (traditional) servlet to generate and output the PDF. Otherwise JSF will mangle it.