/*******************************************************************************
* Gisgraphy Project
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
*
* Copyright 2008 Gisgraphy project
* David Masclet <davidmasclet@gisgraphy.com>
*
*
*******************************************************************************/
package com.gisgraphy.helper;
import javax.servlet.http.HttpServletRequest;
import org.apache.log4j.Logger;
/**
* Provides some usefull methods
*
* @author <a href="mailto:david.masclet@gisgraphy.com">David Masclet</a>
*
*/
public class HTMLHelper {
protected static final Logger logger = Logger
.getLogger(HTMLHelper.class);
/**
* @param req
* The HttpServletRequest from which we'd like to test the
* parameters
* @param parameterNames
* the parameters to tests
* @return true if one of the parameters is null or equals to an empty
* string
*/
public static boolean isParametersEmpty(HttpServletRequest req,
String... parameterNames) {
for (String parameter : parameterNames) {
if (req.getParameter(parameter) == null
|| "".equals(req.getParameter(parameter).trim())) {
return true;
}
}
return false;
}
}