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| | | /* |
| | | * Copyright (c) 2018-2028, DreamLu All rights reserved. |
| | | * |
| | | * Redistribution and use in source and binary forms, with or without |
| | | * modification, are permitted provided that the following conditions are met: |
| | | * |
| | | * Redistributions of source code must retain the above copyright notice, |
| | | * this list of conditions and the following disclaimer. |
| | | * Redistributions in binary form must reproduce the above copyright |
| | | * notice, this list of conditions and the following disclaimer in the |
| | | * documentation and/or other materials provided with the distribution. |
| | | * Neither the name of the dreamlu.net developer nor the names of its |
| | | * contributors may be used to endorse or promote products derived from |
| | | * this software without specific prior written permission. |
| | | * Author: DreamLu 墿¥æ¢¦ (596392912@qq.com) |
| | | */ |
| | | package org.springblade.core.tool.utils; |
| | | |
| | | import java.text.ParseException; |
| | | import java.text.SimpleDateFormat; |
| | | import java.util.Date; |
| | | import java.util.Locale; |
| | | import java.util.Queue; |
| | | import java.util.TimeZone; |
| | | import java.util.concurrent.ConcurrentLinkedQueue; |
| | | |
| | | /** |
| | | * åètomcat8ä¸çå¹¶åDateFormat |
| | | * <p> |
| | | * {@link SimpleDateFormat}ç线ç¨å®å
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å¨ã |
| | | * ä¸ä½¿ç¨ThreadLocalï¼å建足å¤çSimpleDateFormatå¯¹è±¡æ¥æ»¡è¶³å¹¶åæ§è¦æ±ã |
| | | * </p> |
| | | * |
| | | * @author L.cm |
| | | */ |
| | | public class ConcurrentDateFormat { |
| | | private final String format; |
| | | private final Locale locale; |
| | | private final TimeZone timezone; |
| | | private final Queue<SimpleDateFormat> queue = new ConcurrentLinkedQueue<>(); |
| | | |
| | | private ConcurrentDateFormat(String format, Locale locale, TimeZone timezone) { |
| | | this.format = format; |
| | | this.locale = locale; |
| | | this.timezone = timezone; |
| | | SimpleDateFormat initial = createInstance(); |
| | | queue.add(initial); |
| | | } |
| | | |
| | | public static ConcurrentDateFormat of(String format) { |
| | | return new ConcurrentDateFormat(format, Locale.getDefault(), TimeZone.getDefault()); |
| | | } |
| | | |
| | | public static ConcurrentDateFormat of(String format, TimeZone timezone) { |
| | | return new ConcurrentDateFormat(format, Locale.getDefault(), timezone); |
| | | } |
| | | |
| | | public static ConcurrentDateFormat of(String format, Locale locale, TimeZone timezone) { |
| | | return new ConcurrentDateFormat(format, locale, timezone); |
| | | } |
| | | |
| | | public String format(Date date) { |
| | | SimpleDateFormat sdf = queue.poll(); |
| | | if (sdf == null) { |
| | | sdf = createInstance(); |
| | | } |
| | | String result = sdf.format(date); |
| | | queue.add(sdf); |
| | | return result; |
| | | } |
| | | |
| | | public Date parse(String source) throws ParseException { |
| | | SimpleDateFormat sdf = queue.poll(); |
| | | if (sdf == null) { |
| | | sdf = createInstance(); |
| | | } |
| | | Date result = sdf.parse(source); |
| | | queue.add(sdf); |
| | | return result; |
| | | } |
| | | |
| | | private SimpleDateFormat createInstance() { |
| | | SimpleDateFormat sdf = new SimpleDateFormat(format, locale); |
| | | sdf.setTimeZone(timezone); |
| | | return sdf; |
| | | } |
| | | } |