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Use EnumMap for DateFormatter.ISO_PATTERNS again 

This commit changes to use `EnumMap` for `DateFormatter.ISO_PATTERNS`
again by partially reverting commit ba136dcf40.

See gh-29321
Closes gh-29485
This commit is contained in:
Johnny Lim 2022-11-15 05:14:09 +09:00 committed by Sam Brannen
parent 64b89429cb
commit e4ceb80678
1 changed files with 12 additions and 5 deletions
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17
spring-context/src/main/java/org/springframework/format/datetime/DateFormatter.java
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@ -1,5 +1,5 @@
/*
* Copyright 2002-2022 the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -19,7 +19,9 @@ package org.springframework.format.datetime;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Collections;
import java.util.Date;
import java.util.EnumMap;
import java.util.Locale;
import java.util.Map;
import java.util.TimeZone;
@ -47,10 +49,15 @@ public class DateFormatter implements Formatter<Date> {
private static final TimeZone UTC = TimeZone.getTimeZone("UTC");
private static final Map<ISO, String> ISO_PATTERNS = Map.of(
ISO.DATE, "yyyy-MM-dd",
ISO.TIME, "HH:mm:ss.SSSXXX",
ISO.DATE_TIME, "yyyy-MM-dd'T'HH:mm:ss.SSSXXX");
private static final Map<ISO, String> ISO_PATTERNS;
static {
Map<ISO, String> formats = new EnumMap<>(ISO.class);
formats.put(ISO.DATE, "yyyy-MM-dd");
formats.put(ISO.TIME, "HH:mm:ss.SSSXXX");
formats.put(ISO.DATE_TIME, "yyyy-MM-dd'T'HH:mm:ss.SSSXXX");
ISO_PATTERNS = Collections.unmodifiableMap(formats);
}
@Nullable