Java Parse Date Pattern YYYY parse(String string)

Description

parse

License

Open Source License

Declaration

public static long parse(String string) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.Map;
import java.util.TimeZone;

public class Main {
    public static final String ISO_DATETIME_FORMAT = "yyyy-MM-dd HH:mm:ss", ISO_DATE_HOUR_FORMAT = "yyyy-MM-dd HH",
            ISO_DATE_FORMAT = "yyyy-MM-dd", ISO_HOUR_FORMAT = "HH";
    private static ThreadLocal<Map<String, DateFormat>> dateFormats = new ThreadLocal<Map<String, DateFormat>>() {
        public Map<String, DateFormat> get() {
            return super.get();
        }/*from  w  w  w.  j av  a  2 s.c o m*/

        protected Map<String, DateFormat> initialValue() {
            return new HashMap<String, DateFormat>();
        }

        public void remove() {
            super.remove();
        }

        public void set(Map<String, DateFormat> value) {
            super.set(value);
        }
    };
    public final static long NO_TIME_AVAILABLE = -1L;

    public static long parse(String string, String format) {
        if (null == string) {
            return NO_TIME_AVAILABLE;
        }
        try {
            return getDateFormat(format).parse(string).getTime();
        } catch (ParseException e) {
            return NO_TIME_AVAILABLE;
        }
    }

    public static long parse(String string) {
        return parse(string, ISO_DATETIME_FORMAT);
    }

    private static DateFormat getDateFormat(String format) {
        Map<String, DateFormat> threadDateFormats = dateFormats.get();
        if (!threadDateFormats.containsKey(format)) {
            DateFormat dateFormat = new SimpleDateFormat(format);
            dateFormat.setLenient(false);
            dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
            threadDateFormats.put(format, dateFormat);
        }
        return threadDateFormats.get(format);
    }
}

Related

1. parse(String str)
2. parse(String str)
3. parse(String str)
4. parse(String strDate)
5. parse(String strDate)
6. parse(String string)
7. parse(String stringData)
8. parse(String text)
9. parse(String text)