Java AtomicLong getMeUniqueString(Calendar cal)

Description

get Me Unique String

License

Open Source License

Declaration

private static String getMeUniqueString(Calendar cal) 

Method Source Code

//package com.java2s;
import java.util.Calendar;

import java.util.concurrent.atomic.AtomicLong;

public class Main {
    private static AtomicLong idCounter = new AtomicLong(0);

    private static String getMeUniqueString(Calendar cal) {
        StringBuilder unq = new StringBuilder();
        //unq.append(RandomStringUtils.randomAlphanumeric(2));
        //unq.append(Character.toString((char) ('A' + (cal.get(Calendar.YEAR) % 100 - 16))));
        unq.append(Character.toString((char) ('n' + (cal.get(Calendar.MONTH) % 100))));
        unq.append(Character.toString((char) ('@' + (cal.get(Calendar.DAY_OF_MONTH) % 100))));
        unq.append(Character.toString((char) ('c' + (cal.get(Calendar.HOUR_OF_DAY) % 100))));
        unq.append(getMeChar(cal.get(Calendar.MINUTE) % 100));
        unq.append(getMeChar(cal.get(Calendar.SECOND) % 100));
        unq.append(getMeChar(idCounter.getAndIncrement()));
        idCounter.compareAndSet(62, 0);/*from  w  ww . j ava 2  s  . co  m*/

        /*
        unq.append(cal.get(Calendar.MILLISECOND));*/
        return unq.toString();
    }

    private static String getMeChar(long l) {
        if (l <= 9) {
            return Character.toString((char) ('0' + l));
        } else if (l >= 10 && l <= 35) {
            return Character.toString((char) ('a' + l - 10));
        } else if (l >= 36 && l <= 61) {
            return Character.toString((char) ('A' + l - 36));
        }
        return String.valueOf(l);
    }
}

Related

1. getForeverUniqueID()
2. getGlobalTimeStamp()
3. getList(AtomicLongArray atomicLongArray)
4. getMessageId()
5. getMethodExecuteCount()
6. getMmapBufferUsage()
7. getNativeSeed(Random rand)
8. getNextTestIndexName()
9. getNowMicrosUtc()