Module java4ever.utils

Package tech.deplant.java4ever.utils

Class Strings

java.lang.Object

tech.deplant.java4ever.utils.Strings

public class Strings
extends Object

Constructor Summary

Constructors

Constructor	Description
Strings()

Method Summary

Modifier and Type	Method	Description
static String	base64StringToHexString(String base64string)
static String	fromHexString(String text)
static boolean	isEmpty(String str)
static boolean	isNotEmpty(String str)
static String	notEmpty(String str)
static String	notEmpty(String str, String message)
static <T> void	notEmptyDo(String str, Consumer<String> action)
static String	notEmptyElse(String str, String defaultStr)
static String	notEmptyElseLazy(String str, Supplier<String> defaultSupplier)
static boolean	notEmptyEquals(String originalStr, String compareStr)
static <X extends Throwable> String	notEmptyThrow(String str, Supplier<? extends X> exceptionSupplier)
static String	padLeftZeros(String inputString, int length)
static boolean	safeSubstrEquals(String originalStr, int beginIndex, int endIndex, boolean reversed, String compareStr)	Safe means this method shouldn't ever fail, it will return false on nulls, empty strings, bad indexes and all other possible inconsistencies.
static String	substr(String originalStr, int beginIndex)
static String	substr(String originalStr, int beginIndex, boolean reversed)
static String	substr(String originalStr, int beginIndex, int endIndex)
static String	substr(String originalStr, int beginIndex, int endIndex, boolean reversed)
static String	toHexString(String text)	Utility method for preparing hex strings

Methods inherited from class java.lang.Object

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

Constructor Details

Strings

public Strings()

Method Details

isEmpty

public static boolean isEmpty(String str)

isNotEmpty

public static boolean isNotEmpty(String str)

notEmpty

public static String notEmpty(String str)

notEmpty

public static String notEmpty(String str,
 String message)

notEmptyDo

public static <T> void notEmptyDo(String str,
 Consumer<String> action)

notEmptyThrow

public static <X extends Throwable> String notEmptyThrow(String str,
 Supplier<? extends X> exceptionSupplier)
                                                  throws X

Throws:

X

notEmptyElse

public static String notEmptyElse(String str,
 String defaultStr)

notEmptyElseLazy

public static String notEmptyElseLazy(String str,
 Supplier<String> defaultSupplier)

notEmptyEquals

public static boolean notEmptyEquals(String originalStr,
 String compareStr)

substr

public static String substr(String originalStr,
 int beginIndex)

substr

public static String substr(String originalStr,
 int beginIndex,
 int endIndex)

substr

public static String substr(String originalStr,
 int beginIndex,
 boolean reversed)

substr

public static String substr(String originalStr,
 int beginIndex,
 int endIndex,
 boolean reversed)

safeSubstrEquals

public static boolean safeSubstrEquals(String originalStr,
 int beginIndex,
 int endIndex,
 boolean reversed,
 String compareStr)

Safe means this method shouldn't ever fail, it will return false on nulls, empty strings, bad indexes and all other possible inconsistencies. True will be shown only if both string are non-empty and substr result is non-empty and originalStr and substr result are equal.

Parameters:

originalStr - original string that will be substred

beginIndex - substr begin index

endIndex - substr end index

reversed - should be true if indexes should be counted backwards (from the end of the string)

compareStr - string to compare with substring result

Returns:

result of comparison

base64StringToHexString

public static String base64StringToHexString(String base64string)

padLeftZeros

public static String padLeftZeros(String inputString,
 int length)

toHexString

public static String toHexString(String text)

Utility method for preparing hex strings

Parameters:

text - Text string to encode.

Returns:

Hex string

fromHexString

public static String fromHexString(String text)