gr.forth.ics.isl.Index.java Source code

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Here is the source code for gr.forth.ics.isl.Index.java

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/*
 * Copyright 2015 Institute of Computer Science,
 * Foundation for Research and Technology - Hellas
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved
 * by the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 *
 * http://ec.europa.eu/idabc/eupl
 *
 * Unless required by applicable law or agreed to in writing, software distributed
 * under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and limitations
 * under the Licence.
 *
 * Contact:  POBox 1385, Heraklio Crete, GR-700 13 GREECE
 * Tel:+30-2810-391632
 * Fax: +30-2810-391638
 * E-mail: isl@ics.forth.gr
 * http://www.ics.forth.gr/isl
 *
 * Authors :  Georgios Samaritakis.
 *
 * This file is part of the x3mlMapper webapp.
 */
package gr.forth.ics.isl;

import eu.delving.x3ml.X3MLEngine;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.io.output.WriterOutputStream;

/**
 *
 * @author samarita
 */
public class Index 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("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();

        String id = request.getParameter("id");
        String sourceFile = request.getParameter("sourceFile");
        //        String sourceFilename = request.getParameter("sourceFilename");
        String generator = request.getParameter("generator");
        String uuidSize = request.getParameter("uuidSize");
        String outputFormat = request.getParameter("output");

        int uuidSizeInt = 2;

        if (uuidSize != null) {
            try {
                uuidSizeInt = Integer.parseInt(uuidSize);
            } catch (NumberFormatException ex) {

            }
        }

        Mapper map = new Mapper();

        try {
            String serverIP = request.getLocalAddr();

            if (serverIP.equals("0:0:0:0:0:0:0:1")) {//Localhost
                serverIP = "localhost";
            }
            System.out.println("http://" + serverIP + ":" + request.getLocalPort() + "/3MEditor/Services?id=" + id
                    + "&output=text/xml&method=export");
            X3MLEngine engine = map.engine("http://" + serverIP + ":" + request.getLocalPort()
                    + "/3MEditor/Services?id=" + id + "&output=text/xml&method=export");
            X3MLEngine.Output output = engine.execute(map.documentFromString(sourceFile),
                    map.policy(generator, uuidSizeInt));
            if (X3MLEngine.exceptionMessagesList.length() > 0) {
                out.println(X3MLEngine.exceptionMessagesList
                        .replaceAll("(?<!\\A)eu\\.delving\\.x3ml\\.X3MLEngine\\$X3MLException:", "\n$0"));
            }
            if (outputFormat == null || outputFormat.equals("RDF/XML")) {
                OutputStream os = new WriterOutputStream(out);
                PrintStream ps = new PrintStream(os);
                output.writeXML(ps);
            } else if (outputFormat.equals("N-triples")) {
                out.println(output.toString());
            } else if (outputFormat.equals("Turtle")) {
                OutputStream os = new WriterOutputStream(out);
                PrintStream ps = new PrintStream(os);
                output.write(ps, "text/turtle");

            }

        } catch (X3MLEngine.X3MLException ex) {
            ex.printStackTrace(out);
        } catch (Exception ex) {
            ex.printStackTrace(out);
        }

        out.close();

    }

    // <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>

}