001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * For further information about Alkacon Software GmbH & Co. KG, please see the
018 * company website: http://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: http://www.opencms.org
022 *
023 * You should have received a copy of the GNU Lesser General Public
024 * License along with this library; if not, write to the Free Software
025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
026 */
027
028package org.opencms.workplace.list;
029
030import java.text.DateFormat;
031import java.util.Date;
032import java.util.Locale;
033
034/**
035 * Simple formatter for dates.<p>
036 *
037 * @since 6.0.0
038 */
039public class CmsListDateFormatter implements I_CmsListFormatter {
040
041    /** The date style. */
042    private int m_dateStyle;
043
044    /** The time style. */
045    private int m_timeStyle;
046
047    /**
048     * Default constructor.<p>
049     *
050     * Use medium style.<p>
051     */
052    public CmsListDateFormatter() {
053
054        m_dateStyle = DateFormat.MEDIUM;
055        m_timeStyle = DateFormat.MEDIUM;
056    }
057
058    /**
059     * Customizable constructor.<p>
060     *
061     * @param dateStyle the style for the date part
062     * @param timeStyle the style for the time part
063     *
064     * @see DateFormat
065     */
066    public CmsListDateFormatter(int dateStyle, int timeStyle) {
067
068        m_dateStyle = dateStyle;
069        m_timeStyle = timeStyle;
070    }
071
072    /**
073     * @see org.opencms.workplace.list.I_CmsListFormatter#format(java.lang.Object, java.util.Locale)
074     */
075    public String format(Object data, Locale locale) {
076
077        if ((data == null) || !(data instanceof Date)) {
078            return "";
079        }
080        DateFormat dateFormat = DateFormat.getDateTimeInstance(m_dateStyle, m_timeStyle);
081        return dateFormat.format(data);
082    }
083}