package package.server;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

/**
 * This class is used to export files as CSVformat. As client side code cannot
 * write a file, we have to rely on the server side code like this to export a
 * file and make it possible to user to save data in desired format. Rightnow
 * the only supported format is CSV.
 * 
 * @author NischalDahal
 * 
 */
public class CsvFile extends HttpServlet {

 private static final long serialVersionUID = 1L;
 String data = "";

 public void doPost(HttpServletRequest request, HttpServletResponse response) {
 try {
 InputStream in = request.getInputStream();
 BufferedReader br = new BufferedReader(new InputStreamReader(in));
 String line;
 StringBuffer sb = new StringBuffer();
 while ((line = br.readLine()) != null) {
 sb.append(line + "\n");
 }
 br.close();
 data = sb.toString();
 System.out.println("test3\n" + data);
 doGet(request, response);

 } catch (Exception ex) {
 ex.printStackTrace();
 }
 }

 public void doGet(HttpServletRequest request, HttpServletResponse response) {
 ServletOutputStream out;

 try {
 out = response.getOutputStream();

 BufferedOutputStream bos = new BufferedOutputStream(out);

 response.setHeader("Content-type", "application/csv");
 response.setHeader("Content-disposition", "attachment; filename="
 + "Report.csv");
 for (int i = 0; i < data.length(); i++)
 bos.write(data.charAt(i));
 bos.flush();

 bos.close();
 out.println(data);
 } catch (IOException e) {
 e.printStackTrace();
 }
 }
}

}