Saving as pdf

[Pradeep Adibatla]

Hi,
Using this we are not able to connect to another system which provides service. This is working properly when both client system and server on the LAN.
Thank You in advance.

[Pradeep Adibatla]

I have an extraction.jsp which generates an image file.This page has a 'download' button and 'close' buttons.when I click download it has to save it as pdf file(for which a function is written-shown below) when the system is on internet/intranet/LAN etc

The function is ...

function downloadMap(){	
	if(isOK){	
		if(pdfURL=='')pdfURL = winData.urlWMS + '?REQUEST=GetExtractionPDF&'+winData.cUrlExt + '&TRANSID=' + transID;
		alert(pdfURL);
		createTransHistory(3);		
		window.extPane.location.href=pdfURL;
		
	}
	saveAsPdf();
}

function saveAsPdf(){
	try{
		//alert(120)
		window.extPane.document.execCommand("SaveAs",null,"transID.pdf");
	}catch(e){
		alert(e.description);
	}
}

-------
pdfurl is not being assigned to window.extPane.location.href and therefore it unable to call savepdf function...


Needed urgent inputs...thanks

[Bear Bibeault]

Moved to the HTML/JavaScript forum.

[Pradeep Adibatla]

Thanks for the correction but i need inputs big time...

The problem is that it is working when it is in offline mode (locally,no internet)
but when online, "window.extPane.location.href =pdfURL " is not working...

[Eric Pascarello]

Sounds like permissions issues. Why don't you just have the server generate a pdrf file and send it down to the client and not rely on unreliable browser features.

Eric

[Pradeep Adibatla]

Thanks Eric! I was desperate for someone to respond.

Why don't you just have the server generate a pdrf file

My problem is how do I do that?
Is there nothing wrong with "window.extPane.location.href =url " ?? or should i use "window.location.href" or something else...
I would take you suggestion (quickest possible one) A liitle briefing would be of great help...Thanks!

[Pradeep Adibatla]

Sounds like permissions issues

Little more briefing...
I have two jsp's extract.jsp and download.jsp
In extract.jsp which has java code to call the webservice which will reutrn a ".png" image file (no permission problems even on internet) .Next step is to download this as pdf.
but in download.jsp I have written JS code but when download button is clicked , the internet connection goes off from that point...

I hope I am able to explain my issue !!!

[Eric Pascarello]

If extract.jsp can return a png, set it up so it can return a pdf.

[Pradeep Adibatla]

That's somehow not happening and the point I am trying to make.
While returning .pdf the internet connection goes off ... I think somehow the request doesn't go to the webserver and hence it doesn't return .pdf

[Pradeep Adibatla]

not able to understand the issue? I would like to know how to save as pdf...i should atleast save my image file as pdf when i click download link. Any code snippets or inputs for this??

[Paul Clapham]

I have to agree with Eric... If you can write code which downloads a PNG, then the same code with very minor changes can download a PDF. You don't need any special Javascript, either, just an ordinary link to the server URL which generates the PDF.

[Pradeep Adibatla]

Ok...this is the java class ..

		InetAddress inetAddress;
		String hostAddress = null;
		try {
			//inetAddress = InetAddress.getLocalHost();
			hostAddress = servletRequest.getRemoteAddr();
		} catch (Exception e) {
			e.printStackTrace();
		}
		BufferedInputStream dis = null;
		FileOutputStream fos = null;
		HttpSession session = servletRequest.getSession();
		HttpSession session2 = servletRequest.getSession();
		context = ServletActionContext.getServletContext();
		GoaTransaction gTxn = new GoaTransaction();
		try {
			gTxn.setIPAddress(hostAddress);
			Integer transId = -1;
			if (input != null) {
				// context.setAttribute("userInput", input);
				session2.setAttribute("userInputs", input);
				System.out.println("session2 value is" + session2);
				int n = 0;
				String transID = servletRequest.getParameter("transId");
				if (transID == null) {
					System.out.println(input);
					// trans.setActionID(1);

					LoggedInProfile profile = (LoggedInProfile) session
							.getAttribute("profile");
					if (profile != null) {
						User user = profile.getUser();
						if (user != null) {
							gTxn.setUserID(user.getUserID());
							gTxn.setUpdatedBy(user.getUserID());
						}
					}
					gTxn.setInput(input);
					gTxn.setTransStatusID("I");
					// trans.setCreatedOn(new java.sql.Timestamp(new
					// java.util.Date().getTime()));
					gTxn.setTransactionNo("");
					String extURL = servletRequest.getParameter("cUrlExt");
					gTxn.setExtURL(extURL);
					String vc = servletRequest.getParameter("vc");
					System.out.println("village/city>" + vc);
					Integer noOfSheet = extractService.getNoOfSheet(input, vc);
					System.out.println("NoOfSheet>" + noOfSheet);
					if (noOfSheet >= 2) {
						flagExtraction = true;
					} else
						flagExtraction = false;

					session.setAttribute("flagExtract", flagExtraction);
					gTxn.setNoOfSheet(noOfSheet);
					transId = extractService.makeTransaction(gTxn);
					String htmlURL = CVLUtility.WMS_SERVICE.URL + "?REQUEST="
							+ CVLUtility.WMS_SERVICE.EXTRACTHTML + "&" + extURL
							+ "&TRANSID=" + transId;
					String pdfURL = CVLUtility.WMS_SERVICE.URL + "?REQUEST="
							+ CVLUtility.WMS_SERVICE.EXTRACTPDF + "&" + extURL
							+ "&TRANSID=" + transId;
					// servletRequest.setAttribute("pdfURL", pdfURL);
					gTxn.setExtURL(pdfURL);
					System.out.println(htmlURL);
					URL url = new URL(htmlURL);
					HttpURLConnection urlCon = (HttpURLConnection) url
							.openConnection();
					urlCon.setDoOutput(true);
					// urlCon.setRequestProperty("Content-Length", "0");
					urlCon.connect();
					System.out.println("xxxxx" + urlCon.getContentLength());

					// urlCon.setRequestMethod("HEAD");

					dis = new BufferedInputStream(urlCon.getInputStream());
					Integer length = urlCon.getContentLength();
					String mimeType = urlCon.getContentType();
					Integer respCode = urlCon.getResponseCode();
					System.out.println("mimeType:" + mimeType + " length:"
							+ length + " respCode:" + respCode);
					// System.out.println("mimeType:"+mimeType + " length:"+
					// length);
					String udPath = CVLUtility.EXT_PHY_MAP_FOLDER + "/"
							+ transId + ".png";
					fos = new FileOutputStream(udPath);
					int c;
					while ((c = dis.read()) != -1) {
						n++;
						fos.write(c);
					}
					System.out.println("value of n=" + n);
					urlCon.disconnect();
					transID = "" + transId;
				}
				gTxn.setTransactionID(n <= 86 ? -1 : transId);
				// servletRequest.setAttribute("transId", (n <= 86) ? "-1" :
				// transID);
				servletRequest.setAttribute("gTxn", gTxn);
			}
		} catch (Exception e) {
			try {
				// servletRequest.setAttribute("transId", "-1");
				gTxn.setTransStatusID("F");
				extractService.makeTransaction(gTxn);
				gTxn.setTransactionID(-1);
				servletRequest.setAttribute("gTxn", gTxn);
			} catch (Exception ex) {
			}
			e.printStackTrace();
		} finally {
			try {
				dis.close();
				fos.close();
			} catch (Exception e) {
			}
		}
		return SUCCESS;
	

I am just not finding that minor change here... can someone go through this a help me make a move? thanks!

[Pradeep Adibatla]

Ok,I tried the above way but it disturbed my whole application.So i revert back to the old code.

function downloadMap(){	
	if(isOK){	
		if(pdfURL=='')pdfURL = winData.urlWMS + '?REQUEST=GetExtractionPDF&'+winData.cUrlExt + '&TRANSID=' + transID;
		alert(pdfURL);
		createTransHistory(3);		
		window.extPane.location.href=pdfURL;
	}
	alert("It is" +window.extPane.location.href);
	saveAsPdf();
}

function saveAsPdf(){
	try{
		alert("in Save as Pdf");
		window.extPane.document.execCommand("SaveAs",null,"transID.pdf");
	}catch(e){
		alert(e.description);
	}
}

This

window.extPane.location.href=pdfURL;

works fine on LAN and intranet
but for a independent user on the internet this is causing problems.
So this same line which is showing pdf when system is on LAN and intranet is failing with system connected to internet.Where is the flaw??Urgent... thanks!

[Ulf Dittmer]

You're relying on the user's browser to be able to show PDFs. That's simply not a valid assumption to make. The browser may be set to save PDFs automatically, or display them internally with the help of a plugin, or start an external process. That's something the web app has no control over.

[Pradeep Adibatla]

I think that's the best practise,I wish I had time to do that but right now I think I have to stick to this...

small snippet to bring more clarity...

String imgFile = "/maps/" + transID + ".pdf";
			System.out.println("The imgFile is " + imgFile);
			String udPath = servletRequest.getRealPath(imgFile);
			System.out.println("the udpath is :" + udPath);

public String forPrint(){
		System.out.println("in forPrint option");
		
		return SUCCESS;
	}

output...
-------------


The imgFile is /maps/4772.pdf
the udpath is : D:\workspace_final\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\GoaGis\maps\4772.pdf
in forPrint option


---------------

I have to get this file location (in web server) and put it in client/end user system...
How do I take it from this and display it on end user system who is on his own internet? When he uses his internet and accesses the site he is requesting the web server on the LAN but the pdf which is available on the LAN is not being passed on to the enduser...

Issue with tomcat?
//// instead of // for url?
breaking my head with this...
I hope I made it clear

[Pradeep Adibatla]

Add on :

In the struts.xml side I am directing it to a page...It is not going to that page even after success....