Package hu.icellmobilsoft.coffee.tool.utils.string

Class RandomUtil

java.lang.Object

hu.icellmobilsoft.coffee.tool.utils.string.RandomUtil

public class RandomUtil
extends Object

Util class for generating random Strings

Since:

1.0.0

Author:

imre.scheffer

Field Summary

Fields

Modifier and Type	Field	Description
static char[]	ALL_LETTER	Constant ALL_LETTER
static String	ALL_LETTER_STRING	Constant ALL_LETTER_STRING=""
static long	DATE_2013_01_01	Constant DATE_2013_01_01=1356998400000l
static int	generatedIndex	Constant generatedIndex=0
static char[]	LOWERCASE	Constant LOWERCASE
static int	MAX_NUM_SYS	Constant MAX_NUM_SYS=62
static int	PID	Constant PID=
protected static String	PID36	Constant PID36=""
protected static String	PID62	Constant PID62=""
static char[]	UPPERCASE	Constant UPPERCASE

Constructor Summary

Constructors

Constructor	Description
RandomUtil()	Default constructor, constructs a new object.

Method Summary

Modifier and Type	Method	Description
protected static String	convertToRadix(long inNum, long radix)	Converts input long to any number system.
static String	generateId()	Generates fix 16 length id.
protected static String	generateToken()	Generating random String token
protected static int	getNextIndex()	Generates sequential index.
protected static String	paddL(String str, int length, char padd)	Applies left padding to given text.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DATE_2013_01_01

public static long DATE_2013_01_01

Constant DATE_2013_01_01=1356998400000l

MAX_NUM_SYS

public static final int MAX_NUM_SYS

Constant MAX_NUM_SYS=62

See Also:

Constant Field Values

LOWERCASE

public static final char[] LOWERCASE

Constant LOWERCASE

UPPERCASE

public static final char[] UPPERCASE

Constant UPPERCASE

ALL_LETTER

public static final char[] ALL_LETTER

Constant ALL_LETTER

ALL_LETTER_STRING

public static final String ALL_LETTER_STRING

Constant ALL_LETTER_STRING=""

generatedIndex

public static int generatedIndex

Constant generatedIndex=0

PID

public static final int PID

Constant PID=

PID62

protected static final String PID62

Constant PID62=""

PID36

protected static final String PID36

Constant PID36=""

Constructor Detail

RandomUtil

public RandomUtil()

Default constructor, constructs a new object.

Method Detail

generateId

public static String generateId()

Generates fix 16 length id.

Returns:

generated id

getNextIndex

protected static int getNextIndex()

Generates sequential index. Restarts sequence when value greater than 1295.

Returns:

next index

paddL

protected static String paddL(String str,
                              int length,
                              char padd)

Applies left padding to given text.

Parameters:

str - text to pad

length - pad length

padd - pad charachter

Returns:

left-padded text

convertToRadix

protected static String convertToRadix(long inNum,
                                       long radix)

Converts input long to any number system. Highest available number system is 62.

Parameters:

inNum - long to convert

radix - radix of the number system

Returns:

converted number String

generateToken

protected static String generateToken()

Generating random String token

Returns:

generated token