org.springframework.format.datetime.DateFormatterCustom Maven / Gradle / Ivy

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package org.springframework.format.datetime;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.ParsePosition;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.OffsetDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeParseException;
import java.time.temporal.ChronoUnit;
import java.util.Date;
import java.util.Locale;

import org.springframework.context.i18n.LocaleContextHolder;

/**
 * Date 포맷
 */
public final class DateFormatterCustom extends DateFormatter {
  private boolean threadLocal;

  @Override
  protected DateFormat getDateFormat(Locale locale) {
    DateFormat dateFormat = super.getDateFormat(locale);
    if (this.threadLocal) {
      dateFormat.setTimeZone(LocaleContextHolder.getTimeZone());
    }
    return dateFormat;
  }

  /**
   * "\\d{4}-\\d{2}-\\d{2}" 

   * (?:[01]\\d|2[0123]):(?:[012345]\\d):(?:[012345]\\d) 

   * DateFormatter#setIso(ISO.DATE_TIME) 

   * DateFormatter#setIso(ISO.DATE) 

   * yyyy-MM-dd'T'HH:mm:ss.SSS'Z'XXX

   * @see com.fasterxml.jackson.databind.util.ISO8601Utils#parse(String, ParsePosition)
   */
  @Override
  public Date parse(String text, Locale locale) throws ParseException {
    try {
      return super.parse(text, locale);
    }
    catch (ParseException e) {
      try {
        return Date.from(OffsetDateTime.parse(text).toInstant());
      }
      catch (DateTimeParseException exception) {
        e.addSuppressed(exception);
      }
      try {
        return Date.from(LocalDateTime.parse(text).atZone(ZoneId.systemDefault()).toInstant());
      }
      catch (DateTimeParseException exception) {
        e.addSuppressed(exception);
      }
      try {
        return Date.from(LocalDate.parse(text).atTime(LocalTime.now().truncatedTo(ChronoUnit.DAYS)).atZone(ZoneId.systemDefault()).toInstant());
      }
      catch (DateTimeParseException exception) {
        e.addSuppressed(exception);
      }
      try {
        return Date.from(LocalTime.parse(text).atDate(LocalDate.now()).atZone(ZoneId.systemDefault()).toInstant());
      }
      catch (DateTimeParseException exception) {
        e.addSuppressed(exception);
      }
      throw e;
    }
  }

  public boolean isThreadLocal() {
    return threadLocal;
  }

  public void setThreadLocal(boolean threadLocal) {
    this.threadLocal = threadLocal;
  }
}