1 /**
2 * This file Copyright (c) 2014-2018 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.ui.form.field.converter;
35
36 import java.util.Calendar;
37 import java.util.Date;
38 import java.util.Locale;
39
40 import org.apache.commons.lang3.StringUtils;
41
42 import com.vaadin.v7.data.util.converter.StringToDateConverter;
43
44 /**
45 * A converter that converts from {@link Calendar} to {@link String} and back. Uses
46 * the given locale and {@link java.text.DateFormat} for formatting and parsing.
47 *
48 * Delegates to {@link StringToDateConverter}.
49 */
50 public class StringToCalendarConverter implements FieldValueConverter<String, Calendar> {
51
52 private final StringToDateConverter dateConverter = new StringToDateConverter();
53
54 @Override
55 public Calendar convertToModel(String value, Class<? extends Calendar> targetType, Locale locale) {
56 if (StringUtils.isBlank(value)) {
57 return null;
58 }
59 Date date = dateConverter.convertToModel(value, Date.class, locale);
60 Calendar cal = Calendar.getInstance();
61 cal.setTime(date);
62 return cal;
63 }
64
65 @Override
66 public String convertToPresentation(Calendar value, Class<? extends String> targetType, Locale locale) {
67 if (value == null) {
68 return StringUtils.EMPTY;
69 }
70 return dateConverter.convertToPresentation(value.getTime(), targetType, locale);
71 }
72 }