com.comtrade.ecm.engine.util

Class StringUtils

java.lang.Object

com.comtrade.ecm.engine.util.StringUtils

public class StringUtils
extends java.lang.Object

A collection of utility methods with String parameter(s).

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	EMPTY_STRING An empty String. Name of this parameter has been chosen carefully.

Method Summary

Modifier and Type	Method and Description
static boolean	hasLetters(java.lang.String text) Returns an information about existence of (at least) one letter inside a text
static boolean	isBlank(java.lang.String text)
static boolean	isEmpty(java.lang.CharSequence text)
static boolean	isNotBlank(java.lang.String text) Method created after a special request of Lazar Stefanović. He said that such a method would make his life much easier, so why shouldn't we make it?
static boolean	isNotEmpty(java.lang.String text) Method created after a special request of Lazar Stefanović. He said that such a method would make his life much easier, so why shouldn't we make it?
static java.lang.String	join(java.util.Collection<java.lang.Object> collection, java.lang.String delimiter) Joins collection of Strings into a single String.
static java.lang.String	lowercase(java.lang.String text)
static java.lang.String	lowercaseFirst(java.lang.String text)
static java.lang.String	removeFormattingCharacters(java.lang.String text) Removes formatting characters from a String
static java.lang.String	removeSpaces(java.lang.String text) Removes spaces (and only spaces) from a String. It DOES NOT work like trim! It removes ALL the spaces from the text, even middle ones.
static java.lang.String	removeWhitespaces(java.lang.String text) Removes whitespace-characters from a String
static java.lang.String	replaceCharacter(java.lang.String text, char characterOld, char characterNew)
static java.lang.String	toAscii(java.lang.String text) Converts all String letters to ascii
static java.lang.String	toCamelNotation(java.lang.String text)
static java.lang.String	toCyrillic(java.lang.String text) Converts all String letters to cyrillic WARNING! This conversion is not unambiguous, and should be used "with disclaimer". Examples of unwanted results : "Kralj Petar I Karađorđević" : "Краљ Петар И Карађорђевић" "Luj XIV" : "Луј ХИВ" "nadživeti" : "наџивети"
static java.lang.String	toLatin(java.lang.String text) Converts all String letters to latin
static java.lang.String	toPropertyName(java.lang.String text)
static java.lang.String	toSnakeNotation(java.lang.String text)
static java.lang.String	toSnakeNotationFromCamel(java.lang.String text)
static java.lang.String	uppercase(java.lang.String text)
static java.lang.String	uppercaseFirst(java.lang.String text)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_STRING

public static final java.lang.String EMPTY_STRING

An empty String.
Name of this parameter has been chosen carefully. For instance, (a bad) name "NULLSTRING" could have implied that its value is null.

See Also:

Constant Field Values

Method Detail

isEmpty

public static boolean isEmpty(java.lang.CharSequence text)

Parameters:

text - An object whose "emptiness" should be evaluated. Could be null.

Returns:

true, if the CharSequence is empty or null
false, otherwise

 isEmpty(null)        = true
 isEmpty("")          = true
 isEmpty(" ")         = false
 isEmpty("\t\n")      = false
 isEmpty("something") = false
         

isBlank

public static boolean isBlank(java.lang.String text)

Parameters:

text - An object whose "blankness" should be evaluated. Could be null.

Returns:

true, if the CharSequence is empty, null or filled only with whitespace-characters
false, otherwise

 isBlank(null)            = true
 isBlank("")              = true
 isBlank("   ")           = true
 isBlank("\t  \n")        = true
 isBlank("something")     = false
 isBlank("  something  ") = false
         

isNotEmpty

public static boolean isNotEmpty(java.lang.String text)

Method created after a special request of Lazar Stefanović.
He said that such a method would make his life much easier, so why shouldn't we make it?

Parameters:

text - Text that should be tested

Returns:

An information if a text is not empty

isNotBlank

public static boolean isNotBlank(java.lang.String text)

Method created after a special request of Lazar Stefanović.
He said that such a method would make his life much easier, so why shouldn't we make it?

Parameters:

text - Text that should be tested

Returns:

An information if a text is not blank

removeSpaces

public static java.lang.String removeSpaces(java.lang.String text)

Removes spaces (and only spaces) from a String.
It DOES NOT work like trim! It removes ALL the spaces from the text, even middle ones.

Parameters:

text - A text from which we should remove spaces.

Returns:

Original string without space-characters, if original String is not null
EMPTY_STRING, if original String is null.

removeWhitespaces

public static java.lang.String removeWhitespaces(java.lang.String text)

Removes whitespace-characters from a String

Parameters:

text - A text from which we should remove whitespace-characters.

Returns:

Original string without whitespace-characters, or EMPTY_STRING, if original String is null.

hasLetters

public static boolean hasLetters(java.lang.String text)

Returns an information about existence of (at least) one letter inside a text

Parameters:

text - Text whose content we're inspecting

Returns:

true, if there is at least one letter inside a text
false, otherwise

removeFormattingCharacters

public static java.lang.String removeFormattingCharacters(java.lang.String text)

Removes formatting characters from a String

Parameters:

text - A text from which we should remove formatting characters.

Returns:

Original string without formatting characters, or EMPTY_STRING, if original String is null.

toLatin

public static java.lang.String toLatin(java.lang.String text)

Converts all String letters to latin

Parameters:

text - Original text

Returns:

Text written in latin-letters

toAscii

public static java.lang.String toAscii(java.lang.String text)

Converts all String letters to ascii

Parameters:

text - Original text

Returns:

Text written in ascii-letters

toCyrillic

public static java.lang.String toCyrillic(java.lang.String text)

Converts all String letters to cyrillic WARNING! This conversion is not unambiguous, and should be used "with disclaimer".
Examples of unwanted results :
"Kralj Petar I Karađorđević" : "Краљ Петар И Карађорђевић"
"Luj XIV" : "Луј ХИВ"
"nadživeti" : "наџивети"

Parameters:

text - Original text

Returns:

Text written in cyrillic-letters

toPropertyName

public static java.lang.String toPropertyName(java.lang.String text)

toCamelNotation

public static java.lang.String toCamelNotation(java.lang.String text)

uppercase

public static java.lang.String uppercase(java.lang.String text)

toSnakeNotation

public static java.lang.String toSnakeNotation(java.lang.String text)

toSnakeNotationFromCamel

public static java.lang.String toSnakeNotationFromCamel(java.lang.String text)

uppercaseFirst

public static java.lang.String uppercaseFirst(java.lang.String text)

lowercaseFirst

public static java.lang.String lowercaseFirst(java.lang.String text)

lowercase

public static java.lang.String lowercase(java.lang.String text)

replaceCharacter

public static java.lang.String replaceCharacter(java.lang.String text,
                                                char characterOld,
                                                char characterNew)

join

public static java.lang.String join(java.util.Collection<java.lang.Object> collection,
                                    java.lang.String delimiter)

Joins collection of Strings into a single String. Null-strings are skipped.

Parameters:

collection - Collection of String that should be joined

delimiter - Delimiter that separates Strings. If null, then EMPTY_STRING is used as a delimiter.

Returns:

Single string, resulted from joining all nonnull-strings from a collection, delimited by given delimiter.