    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/framework/util/TimeTools2.java $
    002    /*----------------------------------------------------------------------------
    003     This file is part of deegree, http://deegree.org/
    004     Copyright (C) 2001-2009 by:
    005       Department of Geography, University of Bonn
    006     and
    007       lat/lon GmbH
    008
    009     This library is free software; you can redistribute it and/or modify it under
    010     the terms of the GNU Lesser General Public License as published by the Free
    011     Software Foundation; either version 2.1 of the License, or (at your option)
    012     any later version.
    013     This library is distributed in the hope that it will be useful, but WITHOUT
    014     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    015     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
    016     details.
    017     You should have received a copy of the GNU Lesser General Public License
    018     along with this library; if not, write to the Free Software Foundation, Inc.,
    019     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    020
    021     Contact information:
    022
    023     lat/lon GmbH
    024     Aennchenstr. 19, 53177 Bonn
    025     Germany
    026     http://lat-lon.de/
    027
    028     Department of Geography, University of Bonn
    029     Prof. Dr. Klaus Greve
    030     Postfach 1147, 53001 Bonn
    031     Germany
    032     http://www.geographie.uni-bonn.de/deegree/
    033
    034     e-mail: info@deegree.org
    035    ----------------------------------------------------------------------------*/
    036    package org.deegree.framework.util;
    037
    038    import static org.deegree.framework.log.LoggerFactory.getLogger;
    039    import static org.deegree.framework.util.DateUtil.parseISO8601Date;
    040
    041    import java.text.ParseException;
    042    import java.text.SimpleDateFormat;
    043    import java.util.Calendar;
    044    import java.util.Date;
    045    import java.util.TimeZone;
    046
    047    import org.deegree.framework.log.ILogger;
    048
    049    /**
    050     * The <code>TimeTools2</code> class can be used to format Strings to timecodes and get Calenadars of a given Timecode.
    051     * This variant can be used to properly handle time zones.
    052     *
    053     * <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
    054     *
    055     * @author last edited by: $Author: mschneider $
    056     *
    057     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
    058     */
    059
    060    public class TimeTools2 {
    061
    062        private static final ILogger LOG = getLogger( TimeTools2.class );
    063
    064        /**
    065         * @return the current timestamp in ISO format
    066         */
    067        public static String getISOFormattedTime() {
    068            return getISOFormattedTime( new Date( System.currentTimeMillis() ) );
    069        }
    070
    071        /**
    072         * returns the date calendar in ISO format
    073         *
    074         * @param date
    075         * @return the date calendar in ISO format
    076         */
    077        public static String getISOFormattedTime( Date date ) {
    078            // SimpleDateFormat is not threadsafe, so create a new for each call
    079            SimpleDateFormat sdf = new SimpleDateFormat( "yyyy-MM-dd'T'HH:mm:ss'Z'" );
    080            sdf.setTimeZone( TimeZone.getTimeZone( "GMT" ) );
    081            return sdf.format( date );
    082        }
    083
    084        /**
    085         *
    086         * @param cal
    087         *            a Calendar to get the timevalues of
    088         * @return the passed calendar in ISO format
    089         */
    090        public static String getISOFormattedTime( Calendar cal ) {
    091            return getISOFormattedTime( cal.getTime() );
    092        }
    093
    094        /**
    095         *
    096         * @param isoDate
    097         *            an ISO timestamp-> year-mon-dayThours:min:sec
    098         * @return an instance of a <code>GregorianCalendar</tt> from an ISO timestamp
    099         * @throws NumberFormatException
    100         *             if the parsted values of the given String are no proper numbers.
    101         */
    102        public static Calendar createCalendar( String isoDate )
    103                                throws NumberFormatException {
    104            try {
    105                return parseISO8601Date( isoDate );
    106            } catch ( ParseException e ) {
    107                LOG.logError( "A date value could not be parsed, probably not in ISO8601 format", e );
    108            }
    109            return null;
    110        }
    111
    112    }