01 /*
02 * Copyright 2008-2015 the original author or authors.
03 *
04 * Licensed under the Apache License, Version 2.0 (the "License");
05 * you may not use this file except in compliance with the License.
06 * You may obtain a copy of the License at
07 *
08 * http://www.apache.org/licenses/LICENSE-2.0
09 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package griffon.core.editors;
17
18 import griffon.core.formatters.CalendarFormatter;
19 import griffon.core.formatters.Formatter;
20
21 import java.text.ParseException;
22 import java.text.SimpleDateFormat;
23 import java.util.Calendar;
24 import java.util.Date;
25
26 import static griffon.util.GriffonNameUtils.isBlank;
27
28 /**
29 * @author Andres Almiray
30 * @since 2.0.0
31 */
32 public class CalendarPropertyEditor extends AbstractPropertyEditor {
33 protected void setValueInternal(Object value) {
34 if (null == value) {
35 super.setValueInternal(null);
36 } else if (value instanceof CharSequence) {
37 handleAsString(String.valueOf(value));
38 } else if (value instanceof Calendar) {
39 super.setValueInternal(value);
40 } else if (value instanceof Date) {
41 Calendar c = Calendar.getInstance();
42 c.setTime((Date) value);
43 super.setValueInternal(c);
44 } else if (value instanceof Number) {
45 Calendar c = Calendar.getInstance();
46 c.setTime(new Date(((Number) value).longValue()));
47 super.setValueInternal(c);
48 } else {
49 throw illegalValue(value, Calendar.class);
50 }
51 }
52
53 private void handleAsString(String str) {
54 if (isBlank(str)) {
55 super.setValueInternal(null);
56 return;
57 }
58
59 Calendar c = Calendar.getInstance();
60 try {
61 c.setTime(new Date(Long.parseLong(str)));
62 super.setValueInternal(c);
63 return;
64 } catch (NumberFormatException nfe) {
65 // ignore, let's try parsing the date in a locale specific format
66 }
67
68 try {
69 c.setTime(new SimpleDateFormat().parse(str));
70 super.setValueInternal(c);
71 } catch (ParseException e) {
72 throw illegalValue(str, Calendar.class, e);
73 }
74 }
75
76 protected Formatter<Calendar> resolveFormatter() {
77 return isBlank(getFormat()) ? null : new CalendarFormatter(getFormat());
78 }
79 }
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