001    /*
002     * Copyright 2010 The Kuali Foundation
003     *
004     * Licensed under the Educational Community License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may      obtain a copy of the License at
007     *
008     *      http://www.osedu.org/licenses/ECL-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.kuali.student.contract.model.util;
017    
018    import java.text.DateFormat;
019    import java.text.ParseException;
020    import java.text.SimpleDateFormat;
021    import java.util.Date;
022    
023    import org.kuali.student.contract.exception.DictionaryExecutionException;
024    
025    /**
026     *
027     * @author nwright
028     */
029    public class DateUtility {
030    
031        public String asYMD(String date)
032                throws ParseException {
033            if (date == null) {
034                return null;
035            }
036            return asYMD(asDate(date));
037        }
038    
039        public Date asDate(String date)
040                throws ParseException {
041            if (date == null) {
042                return null;
043            }
044            String[] formats = {
045                "yyyy-MM-dd",
046                "MM/dd/yyyy"
047            };
048            ParseException pe = null;
049            for (int i = 0; i < formats.length; i++) {
050                DateFormat df = new SimpleDateFormat(formats[i]);
051                try {
052                    return df.parse(date);
053                } catch (ParseException e) {
054                    pe = e;
055                }
056            }
057            throw pe;
058        }
059    
060        public String asYMD(Date date) {
061            if (date == null) {
062                return null;
063            }
064            DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
065            return df.format(date);
066        }
067    }