Java Parse Date Pattern YYYY parseBingDate(String dateString)

Description

parse Bing Date

License

Apache License

Declaration

static public Date parseBingDate(String dateString) 

Method Source Code

//package com.java2s;
/**// w w  w  . ja va 2 s .c om
 *Copyright [2010] [David Hardtke]
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;

public class Main {
    static public Date parseBingDate(String dateString) {
        DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'kk:mm:ss'Z'");
        df.setTimeZone(TimeZone.getTimeZone("GMT"));
        return parseDateString(dateString, df);
    }

    static public Date parseDateString(String dateString) {
        Date d = null;
        d = parseBingDate(dateString);
        if (d != null)
            return d;
        d = parseBossDate(dateString);
        if (d != null)
            return d;
        d = parseTwitterDate(dateString);
        if (d != null)
            return d;
        d = parseVideoSurfDate(dateString);
        if (d != null)
            return d;
        d = parseCollectaDate(dateString);
        if (d != null)
            return d;
        d = parseUnixDate(dateString);
        if (d != null)
            return d;
        return d;
    }

    static public Date parseDateString(String dateString, DateFormat df) {
        if (dateString == null || df == null)
            return null;
        try {
            Date out = df.parse(dateString);
            return out;
        } catch (ParseException pe) {
            return null;
        }
    }

    static public Date parseBossDate(String dateString) {
        DateFormat df = new SimpleDateFormat("yyyy/MM/dd kk:mm:ss");
        df.setTimeZone(TimeZone.getTimeZone("GMT"));
        return parseDateString(dateString, df);
    }

    static public Date parseTwitterDate(String dateString) {
        //   Tue, 22 Sep 2009 23:16:19 +0000   
        DateFormat df = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss Z");
        //      DateFormat df = new SimpleDateFormat("EEE',' dd MMM yyyy kk:mm:ss Z");
        return parseDateString(dateString, df);
    }

    public static Date parseVideoSurfDate(String dateString) {
        if (dateString == null || !dateString.contains("ago"))
            return null;
        Date d = null;
        Calendar today = Calendar.getInstance();
        String[] splitString = dateString.split(" ");
        if (splitString.length > 1) {
            try {
                int number = Integer.parseInt(splitString[0]);
                String timeUnit = splitString[1];
                if (timeUnit.contains("yr")) {
                    today.add(Calendar.DAY_OF_YEAR, -(365 * number));
                } else if (timeUnit.contains("mo")) {
                    today.add(Calendar.DAY_OF_YEAR, -(30 * number));
                } else if (timeUnit.contains("da")) {
                    today.add(Calendar.DAY_OF_YEAR, -(number));
                } else if (timeUnit.contains("wk")) {
                    today.add(Calendar.DAY_OF_YEAR, -(7 * number));
                } else if (timeUnit.contains("hr")) {
                    today.add(Calendar.HOUR_OF_DAY, -number);
                } else if (timeUnit.contains("mi")) {
                    today.add(Calendar.MINUTE, -number);
                }
                return today.getTime();
            } catch (NumberFormatException e) {
                return null;
            }
        }
        return d;
    }

    static public Date parseCollectaDate(String dateString) {
        DateFormat df = new SimpleDateFormat("EEE MMM d HH:mm:ss z yyyy");
        return parseDateString(dateString, df);
    }

    static public Date parseUnixDate(String dateString) {
        try {
            long date = Long.parseLong(dateString);
            return new Date(date);
        } catch (NumberFormatException nfe) {
            return null;
        }
    }
}

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