Java Parse Date parseDate(String sDate, Locale locale)

Description

parse Date

License

Apache License

Declaration

public static Date parseDate(String sDate, Locale locale) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.text.DateFormat;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

public class Main {
    private static final String[] RFC822_MASKS = { "EEE, dd MMM yyyy HH:mm:ss z", "EEE, dd MMM yyyy HH:mm:ss Z",
            "EEE, dd MMM yy HH:mm:ss z", "EEE, dd MMM yy HH:mm z", "dd MMM yy HH:mm:ss z", "dd MMM yy HH:mm z" };
    private static final String[] W3CDATETIME_MASKS = { "yyyy-MM-dd'T'HH:mm:ss.SSSz", "yyyy-MM-dd't'HH:mm:ss.SSSz",
            "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", "yyyy-MM-dd't'HH:mm:ss.SSS'z'", "yyyy-MM-dd'T'HH:mm:ssz",
            "yyyy-MM-dd't'HH:mm:ssz", "yyyy-MM-dd'T'HH:mm:ssZ", "yyyy-MM-dd't'HH:mm:ssZ",
            "yyyy-MM-dd'T'HH:mm:ss'Z'", "yyyy-MM-dd't'HH:mm:ss'z'", "yyyy-MM-dd'T'HH:mmz", "yyyy-MM'T'HH:mmz",
            "yyyy'T'HH:mmz", "yyyy-MM-dd't'HH:mmz", "yyyy-MM-dd'T'HH:mm'Z'", "yyyy-MM-dd't'HH:mm'z'", "yyyy-MM-dd",
            "yyyy-MM", "yyyy" };
    private static String[] ADDITIONAL_MASKS = { "EEE, dd MMM yyyy HH:mm:ss", "yyyy-MM-dd HH:mm:ss",
            "yyyy-MM-dd HH:mm", "EEE, dd MMM yyyy HH:mm:ss z", "EEE, dd MMM yyyy HH:mm:ss Z" };

    public static Date parseDate(String sDate, Locale locale) {
        Date date = parseW3CDateTime(sDate, locale);
        if (date == null) {
            date = parseRFC822(sDate, locale);
            if ((date == null) && (ADDITIONAL_MASKS.length > 0)) {
                date = parseUsingMask(ADDITIONAL_MASKS, sDate, locale);
            }//  www.j av a  2  s . c om
        }
        return date;
    }

    public static Date parseW3CDateTime(String sDate, Locale locale) {
        int tIndex = sDate.indexOf("T");
        if (tIndex > -1) {
            if (sDate.endsWith("Z")) {
                sDate = sDate.substring(0, sDate.length() - 1) + "+00:00";
            }
            int tzdIndex = sDate.indexOf("+", tIndex);
            if (tzdIndex == -1) {
                tzdIndex = sDate.indexOf("-", tIndex);
            }
            if (tzdIndex > -1) {
                String pre = sDate.substring(0, tzdIndex);
                int secFraction = pre.indexOf(",");
                if (secFraction > -1) {
                    pre = pre.substring(0, secFraction);
                }
                String post = sDate.substring(tzdIndex);
                sDate = pre + "GMT" + post;
            }
        } else {
            sDate = sDate + "T00:00GMT";
        }
        return parseUsingMask(W3CDATETIME_MASKS, sDate, locale);
    }

    public static Date parseRFC822(String sDate, Locale locale) {
        int utIndex = sDate.indexOf(" UT");
        if (utIndex > -1) {
            String pre = sDate.substring(0, utIndex);
            String post = sDate.substring(utIndex + 3);
            sDate = pre + " GMT" + post;
        }
        return parseUsingMask(RFC822_MASKS, sDate, locale);
    }

    private static Date parseUsingMask(String[] masks, String sDate, Locale locale) {
        if (sDate != null) {
            sDate = sDate.trim();
        }
        ParsePosition pp = null;
        Date d = null;
        for (int i = 0; (d == null) && (i < masks.length); i++) {
            DateFormat df = new SimpleDateFormat(masks[i], locale);

            df.setLenient(true);
            try {
                pp = new ParsePosition(0);
                d = df.parse(sDate, pp);
                if (pp.getIndex() != sDate.length()) {
                    d = null;
                }
            } catch (Exception localException) {
            }
        }
        return d;
    }
}

Related

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2. parseDate(String s, String format)
3. parseDate(String sDate)
4. parseDate(String sDate)
5. parseDate(String sDate)
6. parseDate(String sDate, SimpleDateFormat _dateFormat)
7. parseDate(String sDate, String sFormat)
8. parseDate(String sDate, String sSourceFormat, String sDestinationFormat)
9. parseDate(String sdate, String timeFormat, String timeZone)