Alterado para devolver XML conforma solicitação

[simdecs.git] / src / java / org / ufcspa / simdecs / comunicacao / MetodoSelecionaCaso.java

/*\r
 * To change this template, choose Tools | Templates\r
 * and open the template in the editor.\r
 */\r
package org.ufcspa.simdecs.comunicacao;\r
\r
import java.io.BufferedInputStream;\r
import java.io.IOException;\r
import java.io.PrintWriter;\r
import java.net.MalformedURLException;\r
import java.net.URL;\r
import java.net.URLConnection;\r
import javax.persistence.EntityManager;\r
import javax.persistence.EntityManagerFactory;\r
import javax.persistence.Persistence;\r
import javax.servlet.ServletException;\r
import javax.servlet.http.HttpServlet;\r
import javax.servlet.http.HttpServletRequest;\r
import javax.servlet.http.HttpServletResponse;\r
import org.ufcspa.simdecs.entidade.ArquivoCaso;\r
\r
/**\r
 *\r
 * @author pbarros\r
 */\r
public class MetodoSelecionaCaso extends HttpServlet {\r
\r
    /**\r
     * Processes requests for both HTTP\r
     * <code>GET</code> and\r
     * <code>POST</code> methods.\r
     *\r
     * @param request servlet request\r
     * @param response servlet response\r
     * @throws ServletException if a servlet-specific error occurs\r
     * @throws IOException if an I/O error occurs\r
     */\r
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)\r
            throws ServletException, IOException {\r
        response.setContentType("text/html;charset=UTF-8");\r
        PrintWriter out = response.getWriter();\r
        //String file ;\r
\r
        EntityManagerFactory emf = Persistence.createEntityManagerFactory("simdecsPU");\r
        EntityManager em = emf.createEntityManager();\r
        \r
        URL url = null;\r
        URLConnection urlConn = null;\r
        BufferedInputStream buf = null;\r
        ArquivoCaso arquivo;\r
        Integer idCaso = Integer.valueOf(request.getParameter("idArquivoCaso"));\r
        \r
//        out.print(request.getParameter("idArquivoCaso"));\r
        try {\r
            \r
            arquivo =  (ArquivoCaso) em.createQuery("select arq from ArquivoCaso as arq where arq.id ="+idCaso)\r
                                                                            //.setParameter("idC",idCaso)\r
                                                                            .getSingleResult();\r
//            out.println(arquivo.getEndArquivo());\r
            url = getServletContext().getResource(arquivo.getEndArquivo());\r
            //set response header\r
            response.setContentType("text/xml");\r
            urlConn = url.openConnection();\r
            //establish connection with URL presenting web.xml\r
            urlConn.connect();\r
            buf = new BufferedInputStream(urlConn.getInputStream());\r
            int readBytes = 0;\r
            while ((readBytes = buf.read()) != -1)\r
                out.write(readBytes);\r
            } catch (MalformedURLException mue) {\r
            throw new ServletException(mue.getMessage());\r
            } catch (IOException ioe) {\r
            throw new ServletException(ioe.getMessage());\r
        } finally {            \r
            out.close();\r
            buf.close();\r
        }\r
    }\r
\r
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">\r
    /**\r
     * Handles the HTTP\r
     * <code>GET</code> method.\r
     *\r
     * @param request servlet request\r
     * @param response servlet response\r
     * @throws ServletException if a servlet-specific error occurs\r
     * @throws IOException if an I/O error occurs\r
     */\r
    @Override\r
    protected void doGet(HttpServletRequest request, HttpServletResponse response)\r
            throws ServletException, IOException {\r
        processRequest(request, response);\r
    }\r
\r
    /**\r
     * Handles the HTTP\r
     * <code>POST</code> method.\r
     *\r
     * @param request servlet request\r
     * @param response servlet response\r
     * @throws ServletException if a servlet-specific error occurs\r
     * @throws IOException if an I/O error occurs\r
     */\r
    @Override\r
    protected void doPost(HttpServletRequest request, HttpServletResponse response)\r
            throws ServletException, IOException {\r
        processRequest(request, response);\r
    }\r
\r
    /**\r
     * Returns a short description of the servlet.\r
     *\r
     * @return a String containing servlet description\r
     */\r
    @Override\r
    public String getServletInfo() {\r
        return "Short description";\r
    }// </editor-fold>\r
}\r