001    /*
002     * Copyright (c) 2006 Henri Sivonen
003     *
004     * Permission is hereby granted, free of charge, to any person obtaining a 
005     * copy of this software and associated documentation files (the "Software"), 
006     * to deal in the Software without restriction, including without limitation 
007     * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
008     * and/or sell copies of the Software, and to permit persons to whom the 
009     * Software is furnished to do so, subject to the following conditions:
010     *
011     * The above copyright notice and this permission notice shall be included in 
012     * all copies or substantial portions of the Software.
013     *
014     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
015     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
016     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
017     * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
018     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
019     * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
020     * DEALINGS IN THE SOFTWARE.
021     */
022    
023    package org.whattf.datatype;
024    
025    import java.util.regex.Pattern;
026    
027    /**
028     * This datatype shall accept strings that conform to the format specified for
029     * <a href='http://whatwg.org/specs/web-forms/current-work/#datetime-local'><code>datetime-local</code></a>
030     * inputs in Web Forms 2.0.
031     * <p>
032     * This datatype must not accept the empty string.
033     * 
034     * @version $Id: DatetimeLocal.java,v 1.2 2006/11/18 11:51:44 hsivonen Exp $
035     * @author hsivonen
036     */
037    public final class DatetimeLocal extends AbstractDatetime {
038        
039        /**
040         * The singleton instance.
041         */
042        public static final DatetimeLocal THE_INSTANCE = new DatetimeLocal();
043        
044        /**
045         * The rexexp for this datatype.
046         */
047        private static final Pattern THE_PATTERN = Pattern.compile("^([0-9]{4,})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2})(?::([0-9]{2})(?:\\.[0-9]+)?)?$");
048    
049        /**
050         * Constructor.
051         */
052        private DatetimeLocal() {
053            super();
054        }
055        
056        /**
057         * Returns the regexp for this datatype.
058         * 
059         * @return the regexp for this datatype
060         * @see org.whattf.datatype.AbstractDatetime#getPattern()
061         */
062        protected final Pattern getPattern() {
063            return THE_PATTERN;
064        }
065    }