SimpleDateFormatThreadSafe

gistfile1.java

package com.foocoders.text;

import java.text.AttributedCharacterIterator;
import java.text.DateFormatSymbols;
import java.text.FieldPosition;
import java.text.NumberFormat;
import java.text.ParseException;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

public class SimpleDateFormatThreadSafe extends SimpleDateFormat {

	private static final long serialVersionUID = 5448371898056188202L;
	ThreadLocal<SimpleDateFormat> localSimpleDateFormat;

	public SimpleDateFormatThreadSafe() {
		super();
		localSimpleDateFormat = new ThreadLocal<SimpleDateFormat>() {
			protected SimpleDateFormat initialValue() {
				return new SimpleDateFormat();
			}
		};
	}

	public SimpleDateFormatThreadSafe(final String pattern) {
		super(pattern);
		localSimpleDateFormat = new ThreadLocal<SimpleDateFormat>() {
			protected SimpleDateFormat initialValue() {
				return new SimpleDateFormat(pattern);
			}
		};
	}

	public SimpleDateFormatThreadSafe(final String pattern, final DateFormatSymbols formatSymbols) {
		super(pattern, formatSymbols);
		localSimpleDateFormat = new ThreadLocal<SimpleDateFormat>() {
			protected SimpleDateFormat initialValue() {
				return new SimpleDateFormat(pattern, formatSymbols);
			}
		};
	}

	public SimpleDateFormatThreadSafe(final String pattern, final Locale locale) {
		super(pattern, locale);
		localSimpleDateFormat = new ThreadLocal<SimpleDateFormat>() {
			protected SimpleDateFormat initialValue() {
				return new SimpleDateFormat(pattern, locale);
			}
		};
	}

	public Object parseObject(String source) throws ParseException {
		return localSimpleDateFormat.get().parseObject(source);
	}

	public String toString() {
		return localSimpleDateFormat.get().toString();
	}

	public Date parse(String source) throws ParseException {
		return localSimpleDateFormat.get().parse(source);
	}

	public Object parseObject(String source, ParsePosition pos) {
		return localSimpleDateFormat.get().parseObject(source, pos);
	}

	public void setCalendar(Calendar newCalendar) {
		localSimpleDateFormat.get().setCalendar(newCalendar);
	}

	public Calendar getCalendar() {
		return localSimpleDateFormat.get().getCalendar();
	}

	public void setNumberFormat(NumberFormat newNumberFormat) {
		localSimpleDateFormat.get().setNumberFormat(newNumberFormat);
	}

	public NumberFormat getNumberFormat() {
		return localSimpleDateFormat.get().getNumberFormat();
	}

	public void setTimeZone(TimeZone zone) {
		localSimpleDateFormat.get().setTimeZone(zone);
	}

	public TimeZone getTimeZone() {
		return localSimpleDateFormat.get().getTimeZone();
	}

	public void setLenient(boolean lenient) {
		localSimpleDateFormat.get().setLenient(lenient);
	}

	public boolean isLenient() {
		return localSimpleDateFormat.get().isLenient();
	}

	public void set2DigitYearStart(Date startDate) {
		localSimpleDateFormat.get().set2DigitYearStart(startDate);
	}

	public Date get2DigitYearStart() {
		return localSimpleDateFormat.get().get2DigitYearStart();
	}

	public StringBuffer format(Date date, StringBuffer toAppendTo, FieldPosition pos) {
		return localSimpleDateFormat.get().format(date, toAppendTo, pos);
	}

	public AttributedCharacterIterator formatToCharacterIterator(Object obj) {
		return localSimpleDateFormat.get().formatToCharacterIterator(obj);
	}

	public Date parse(String text, ParsePosition pos) {
		return localSimpleDateFormat.get().parse(text, pos);
	}

	public String toPattern() {
		return localSimpleDateFormat.get().toPattern();
	}

	public String toLocalizedPattern() {
		return localSimpleDateFormat.get().toLocalizedPattern();
	}

	public void applyPattern(String pattern) {
		localSimpleDateFormat.get().applyPattern(pattern);
	}

	public void applyLocalizedPattern(String pattern) {
		localSimpleDateFormat.get().applyLocalizedPattern(pattern);
	}

	public DateFormatSymbols getDateFormatSymbols() {
		return localSimpleDateFormat.get().getDateFormatSymbols();
	}

	public void setDateFormatSymbols(DateFormatSymbols newFormatSymbols) {
		localSimpleDateFormat.get().setDateFormatSymbols(newFormatSymbols);
	}

	public Object clone() {
		return localSimpleDateFormat.get().clone();
	}

	public int hashCode() {
		return localSimpleDateFormat.get().hashCode();
	}

	public boolean equals(Object obj) {
		return localSimpleDateFormat.get().equals(obj);
	}

}