Method: getDateTimeFormatterFor(FormatStyle, Locale)

1: /*
2: * *********************************************************************************************************************
3: *
4: * TheseFoolishThings: Miscellaneous utilities
5: * http://tidalwave.it/projects/thesefoolishthings
6: *
7: * Copyright (C) 2009 - 2023 by Tidalwave s.a.s. (http://tidalwave.it)
8: *
9: * *********************************************************************************************************************
10: *
11: * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
12: * the License. You may obtain a copy of the License at
13: *
14: * http://www.apache.org/licenses/LICENSE-2.0
15: *
16: * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
17: * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
18: * specific language governing permissions and limitations under the License.
19: *
20: * *********************************************************************************************************************
21: *
22: * git clone https://bitbucket.org/tidalwave/thesefoolishthings-src
23: * git clone https://github.com/tidalwave-it/thesefoolishthings-src
24: *
25: * *********************************************************************************************************************
26: */
27: package it.tidalwave.util;
28:
29: import javax.annotation.Nonnull;
30: import java.time.format.DateTimeFormatter;
31: import java.time.format.FormatStyle;
32: import java.util.Locale;
33: import lombok.AccessLevel;
34: import lombok.NoArgsConstructor;
35:
36: /***********************************************************************************************************************
37: *
38: * A factory class for localized {@link DateTimeFormatter}s in various flavours, specified by the {@link FormatStyle}.
39: * This class is especially useful for migration to JDK 9+, where the default behaviour of
40: * {@code DateTimeFormatter.ofLocalizedDate/DateTime(...)} has changed.
41: *
42: * At the moment only locales for English and Italian are supported.
43: *
44: * @since 3.1-ALPHA-4
45: * @author Fabrizio Giudici
46: *
47: **********************************************************************************************************************/
48: @NoArgsConstructor(access = AccessLevel.PRIVATE)
49: public final class LocalizedDateTimeFormatters
50: {
51: /*******************************************************************************************************************
52: *
53: * Returns a formatter.
54: *
55: * @param style the style
56: * @param locale the locale
57: * @return the formatter
58: *
59: ******************************************************************************************************************/
60: @Nonnull
61: public static DateTimeFormatter getDateTimeFormatterFor (@Nonnull final FormatStyle style,
62: @Nonnull final Locale locale)
63: {
64: final String resourceName = "dateTimeFormatterPattern." + style.name();
65: final String pattern = BundleUtilities.getMessage(LocalizedDateTimeFormatters.class, locale, resourceName);
66: return DateTimeFormatter.ofPattern(pattern).withLocale(locale);
67: }
68: }