/*
* Copyright (C) 2003-2011 eXo Platform SAS.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see<http://www.gnu.org/licenses/>.
*/
package org.exoplatform.poll.service;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.List;
/**
* Created by The eXo Platform SAS
* Author : Vu Duy Tu
* tu.duy@exoplatform.com
* Apr 28, 2011
*/
public class Utils {
public static Calendar getGreenwichMeanTime() {
Calendar calendar = GregorianCalendar.getInstance();
calendar.setLenient(false);
int gmtoffset = calendar.get(Calendar.DST_OFFSET) + calendar.get(Calendar.ZONE_OFFSET);
calendar.setTimeInMillis(System.currentTimeMillis() - gmtoffset);
return calendar;
}
public static boolean isEmpty(String s) {
return (s == null || s.trim().length() <= 0) ? true : false;
}
public static boolean isListEmpty(List<String> list) {
if (list == null || list.size() == 0) {
return true;
}
for (String string : list) {
if (!isEmpty(string)) {
return false;
}
}
return true;
}
}