package org.litesoft.sandbox.multimodule.client.foundation.support;

public class LuckyIdCodec
{
    public static String encode( Long luckyId )
    {
        return (luckyId == null) ? null : Long.toOctalString( luckyId + Integer.MAX_VALUE );
    }

    public static Long decode( String luckyId )
    {
        if ( luckyId != null )
        {
            if ( (luckyId = luckyId.trim()).length() != 0 )
            {
                try
                {
                    return Long.parseLong( luckyId, 8 ) - Integer.MAX_VALUE;
                }
                catch ( NumberFormatException e )
                {
                    // Ignore...
                }
            }
        }
        return null;
    }
}