01 /*
02 * Copyright 2008-2016 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.formatters;
17
18 import javax.annotation.Nonnull;
19 import javax.annotation.Nullable;
20 import java.time.LocalDateTime;
21 import java.time.format.DateTimeFormatter;
22 import java.time.format.DateTimeParseException;
23
24 import static griffon.util.GriffonNameUtils.isBlank;
25
26 /**
27 * @author Andres Almiray
28 * @since 2.4.0
29 */
30 public class LocalDateTimeFormatter extends AbstractFormatter<LocalDateTime> {
31 private final DateTimeFormatter formatter;
32 private final String pattern;
33
34 public LocalDateTimeFormatter() {
35 this(null);
36 }
37
38 public LocalDateTimeFormatter(@Nullable String pattern) {
39 if (isBlank(pattern)) {
40 formatter = DateTimeFormatter.ISO_LOCAL_DATE_TIME;
41 this.pattern = "yyyy-MM-dd'T'HH:mm:ss.SSS";
42 } else {
43 formatter = DateTimeFormatter.ofPattern(pattern);
44 this.pattern = pattern;
45 }
46 }
47
48 @Nonnull
49 public String getPattern() {
50 return pattern;
51 }
52
53 @Nullable
54 public String format(@Nullable LocalDateTime time) {
55 return time == null ? null : formatter.format(time);
56 }
57
58 @Nullable
59 @Override
60 public LocalDateTime parse(@Nullable String str) throws ParseException {
61 if (isBlank(str)) return null;
62 try {
63 return LocalDateTime.parse(str, formatter);
64 } catch (DateTimeParseException e) {
65 throw new ParseException(e);
66 }
67 }
68 }
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