fi.hoski.web.forms.PaymentServlet.java Source code

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Here is the source code for fi.hoski.web.forms.PaymentServlet.java

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/*
 * Copyright (C) 2012 Helsingfors Segelklubb ry
 *
 * 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 fi.hoski.web.forms;

import com.google.appengine.api.datastore.*;
import fi.hoski.datastore.DSUtils;
import fi.hoski.datastore.DSUtilsImpl;
import fi.hoski.datastore.Races;
import fi.hoski.datastore.RacesImpl;
import fi.hoski.mail.MailService;
import fi.hoski.mail.MailServiceImpl;
import fi.hoski.util.BankingBarcode;
import fi.hoski.util.code128.CharNotInCodesetException;
import fi.hoski.util.code128.Code128;
import fi.hoski.web.ServletLog;
import java.io.IOException;
import java.util.Map;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

/**
 * Experimental
 *
 * @author Timo Vesalainen
 */
public class PaymentServlet extends HttpServlet {

    private DatastoreService datastore;
    private DSUtils entities;
    private Races races;
    private MailService mailService;

    @Override
    public void init(ServletConfig config) throws ServletException {
        super.init(config);
        datastore = DatastoreServiceFactory.getDatastoreService();
        entities = new DSUtilsImpl(datastore);
        mailService = new MailServiceImpl();
        races = new RacesImpl(new ServletLog(this), datastore, entities, mailService);
    }

    /**
     * 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.setHeader("Cache-Control", "no-cache"); // input comes from referrer
        response.setContentType("application/json");
        JSONObject json = new JSONObject();
        JSONArray jsonArray = new JSONArray();
        try {
            String referer = request.getHeader("referer");
            log("referer=" + referer);
            if (referer != null) {
                int i1 = referer.indexOf("ancestor=");
                if (i1 != -1) {
                    String ancestor = null;
                    int i2 = referer.indexOf("&", i1);
                    if (i2 != -1) {
                        ancestor = referer.substring(i1 + 9, i2);
                    } else {
                        ancestor = referer.substring(i1 + 9);
                    }
                    Key raceEntryKey = KeyFactory.stringToKey(ancestor);
                    BankingBarcode barcode = races.getBarcode(raceEntryKey);
                    if (barcode != null) {
                        for (Map.Entry<String, Object> e : barcode.getMetaData().entrySet()) {
                            json.put(e.getKey(), e.getValue());
                        }
                        char[] bars = Code128.encode(barcode.toString());
                        int width = 0;
                        for (int cc : bars) {
                            width += cc;
                            jsonArray.put(cc);
                        }
                        json.put("barwidth", width);
                        json.put("bars", jsonArray);
                    }
                }
            }
            json.write(response.getWriter());
        } catch (EntityNotFoundException ex) {
            throw new ServletException(ex);
        } catch (JSONException ex) {
            throw new ServletException(ex);
        } catch (CharNotInCodesetException ex) {
            throw new ServletException(ex);
        } finally {
        }
    }

    // <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>
}