com.ikon.servlet.FlagIconServlet.java Source code

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Here is the source code for com.ikon.servlet.FlagIconServlet.java

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/**
 *  openkm, Open Document Management System (http://www.openkm.com)
 *  Copyright (c) 2006-2013  Paco Avila & Josep Llort
 *
 *  No bytes were intentionally harmed during the development of this application.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package com.ikon.servlet;

import java.io.IOException;
import java.io.OutputStream;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.ikon.core.DatabaseException;
import com.ikon.dao.LanguageDAO;
import com.ikon.dao.bean.Language;
import com.ikon.util.SecureStore;

/**
 * Flag Icon Servlet
 */
public class FlagIconServlet extends HttpServlet {
    private static Logger log = LoggerFactory.getLogger(MimeIconServlet.class);
    private static final long serialVersionUID = 1L;

    /**
     * 
     */
    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws IOException, ServletException {
        String lgId = request.getPathInfo();
        OutputStream os = null;

        try {
            if (lgId.length() > 1) {
                Language language = LanguageDAO.findByPk(lgId.substring(1)); // The first character / must be removed

                if (language != null) {
                    byte[] img = SecureStore.b64Decode(new String(language.getImageContent()));
                    response.setContentType(language.getImageMime());
                    response.setContentLength(img.length);
                    os = response.getOutputStream();
                    os.write(img);
                    os.flush();
                }
            }
        } catch (DatabaseException e) {
            log.error(e.getMessage(), e);
        } finally {
            IOUtils.closeQuietly(os);
        }
    }
}