DateFormats.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * 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 org.turro.elephant.util;
 
import java.text.DateFormat;
import java.text.DateFormatSymbols;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.amic.util.date.CheckDate;
import org.turro.elephant.context.Application;
 
public class DateFormats {
  
  public static final String format(Date d, boolean dateOnly) {
    if(d == null) return null;
    if(dateOnly) {
      return org.amic.util.date.DateFormats.format(d, 
            DateFormat.SHORT, Application.getUsedLocale());
    } else {
      return org.amic.util.date.DateFormats.format(d, 
            DateFormat.SHORT, DateFormat.SHORT, Application.getUsedLocale());
    }      
  }
  
  public static String formatNull(Date d, boolean dateOnly) {
    if(d == null) {
      return "";
    }
    return DateFormats.format(d, dateOnly);
  }
  
  public static String getDefaultFormat() {
        final DateFormat df = DateFormat.getDateInstance(
            DateFormat.SHORT, Application.getUsedLocale());
        if (df instanceof SimpleDateFormat) {
            final String fmt = ((SimpleDateFormat)df).toPattern();
            if (fmt != null && !"M/d/yy h:mm a".equals(fmt))
                return fmt; //note: JVM use "M/d/yy h:mm a" if not found!
        }
        return "yyyy/MM/dd";
  }
 
  public static String getDefaultDateTimeFormat() {
        final DateFormat df = DateFormat.getDateTimeInstance(
            DateFormat.SHORT, DateFormat.SHORT, Application.getUsedLocale());
        if (df instanceof SimpleDateFormat) {
            final String fmt = ((SimpleDateFormat)df).toPattern();
            if (fmt != null && !"M/d/yy h:mm a".equals(fmt))
                return fmt; //note: JVM use "M/d/yy h:mm a" if not found!
        }
        return "yyyy/MM/dd hh:mm a";
  }
 
  public static String monthName(Date date) {
    DateFormatSymbols dfs = DateFormatSymbols.getInstance(Application.getUsedLocale());
    return dfs.getMonths()[new CheckDate(date).getMonth() - 1];
  }
  
  public static String formatTime(Date d) {
    if(d == null) {
      return "";
    }
        final DateFormat df = DateFormat.getTimeInstance(
            DateFormat.SHORT, Application.getUsedLocale());
    return df.format(d);
  }
  
}