forseti.JUploadFichero.java Source code

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/*
Forseti, El ERP Gratuito para PyMEs
Copyright (C) 2015 Gabriel Gutirrez Fuentes.
    
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.
    
You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package forseti;

import java.io.*;
//import java.net.*;

import javax.servlet.*;
import javax.servlet.http.*;

import org.apache.commons.fileupload.*;
import java.util.*;

@SuppressWarnings("serial")
public class JUploadFichero extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        out.println("<html>");
        out.println("<head>");
        out.println("<title>Forseti</title>");
        out.println("</head>");
        out.println("<body>");

        //System.out.println("Comenzamos procesamiento ficheros");

        procesaFicheros(request, out);

        out.println("</body>");
        out.println("</html>");

        out.close();
    }

    void depura(String cadena) {

        //System.out.println(cadena);
    }

    @SuppressWarnings("rawtypes")
    public boolean procesaFicheros(HttpServletRequest req, PrintWriter out) {
        try {
            // construimos el objeto que es capaz de parsear la pericin
            DiskFileUpload fu = new DiskFileUpload();

            // maximo numero de bytes
            fu.setSizeMax(1024 * 512); // 512 K

            depura("Ponemos el tamao mximo");
            // tamao por encima del cual los ficheros son escritos directamente en disco
            fu.setSizeThreshold(4096);

            // directorio en el que se escribirn los ficheros con tamao superior al soportado en memoria
            fu.setRepositoryPath("/tmp");

            // ordenamos procesar los ficheros
            List fileItems = fu.parseRequest(req);

            if (fileItems == null) {
                depura("La lista es nula");
                return false;
            }

            // Iteramos por cada fichero

            Iterator i = fileItems.iterator();
            FileItem actual = null;
            depura("estamos en la iteracin");

            while ((actual = (FileItem) i.next()) != null) {
                String fileName = actual.getName();
                out.println("<br>Nos han subido el archivo: " + fileName);

                // construimos un objeto file para recuperar el trayecto completo
                File fichero = new File(fileName);
                depura("El nombre del fichero es " + fichero.getName());

                // nos quedamos solo con el nombre y descartamos el path
                fichero = new File("../tomcat/webapps/ROOT/forsetidoc/IMG/" + fichero.getName());

                // escribimos el fichero colgando del nuevo path
                actual.write(fichero);
            }

        } catch (Exception e) {
            if (e != null)
                depura("Error de Aplicacin " + e.getMessage());

            return false;
        }

        return true;
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }
}