net.daw.control.upload.java Source code

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Here is the source code for net.daw.control.upload.java

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/*
 * Copyright (c) 2015 by Rafael Angel Aznar Aparici (rafaaznar at gmail dot com)
 * 
 * openAUSIAS: The stunning micro-library that helps you to develop easily 
 *             AJAX web applications by using Java and jQuery
 * openAUSIAS is distributed under the MIT License (MIT)
 * Sources at https://github.com/rafaelaznar/
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * 
 */
package net.daw.control;

import com.google.gson.Gson;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

/**
 *
 * @author Alejandro Barrante Cano
 */
public class upload extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("application/json;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            String name = "";
            String strMessage = "";
            HashMap<String, String> hash = new HashMap<>();
            if (ServletFileUpload.isMultipartContent(request)) {
                try {
                    List<FileItem> multiparts = new ServletFileUpload(new DiskFileItemFactory())
                            .parseRequest(request);
                    for (FileItem item : multiparts) {
                        if (!item.isFormField()) {
                            name = new File(item.getName()).getName();
                            item.write(new File(".//..//webapps//images//" + name));
                        } else {
                            hash.put(item.getFieldName(), item.getString());
                        }
                    }
                    Gson oGson = new Gson();
                    Map<String, String> data = new HashMap<>();
                    Iterator it = hash.entrySet().iterator();
                    while (it.hasNext()) {
                        Map.Entry e = (Map.Entry) it.next();
                        data.put(e.getKey().toString(), e.getValue().toString());
                    }
                    data.put("imglink", "http://" + request.getServerName() + ":" + request.getServerPort()
                            + "/images/" + name);
                    out.print("{\"status\":200,\"message\":" + oGson.toJson(data) + "}");
                } catch (Exception ex) {
                    strMessage += "File Upload Failed: " + ex;
                    out.print("{\"status\":500,\"message\":\"" + strMessage + "\"}");
                }
            } else {
                strMessage += "Only serve file upload requests";
                out.print("{\"status\":500,\"message\":\"" + strMessage + "\"}");
            }
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}