Package org.thymeleaf.util

Class StringUtils

Object

org.thymeleaf.util.StringUtils

public final class StringUtils
extends Object

Utility methods for String objects.

This class is used as a basis for the methods offered by Strings, which in turn are the methods offered by the #strings utility object in variable expressions.

Since:

1.0

Author:

Daniel Fernández, Le Roux Bernard, Soraya Sánchez Labandeira

Method Summary

Modifier and Type	Method	Description
static String	abbreviate(Object target, int maxSize)
static String	append(Object target, String suffix)
static String	capitalize(Object target)	Convert the first letter of target to uppercase (title-case, in fact).
static String	capitalizeWords(Object target)	Convert all the first letter of the words of target to uppercase (title-case, in fact).
static String	capitalizeWords(Object target, Object delimiters)	Convert all the first letter of the words of target to uppercase (title-case, in fact), using the specified delimiter chars for determining word ends/starts.
static String	concat(Object... values)
static String	concatReplaceNulls(String nullValue, Object... values)
static Boolean	contains(Object target, String fragment)
static Boolean	containsIgnoreCase(Object target, String fragment, Locale locale)
static Boolean	endsWith(Object target, String suffix)
static Boolean	equals(Object first, Object second)
static Boolean	equalsIgnoreCase(Object first, Object second)
static String	escapeJava(Object target)	Escapes the specified target text as required for Java code.
static String	escapeJavaScript(Object target)	Escapes the specified target text as required for JavaScript code.
static String	escapeXml(Object target)	XML-escapes the specified text.
static Integer	indexOf(Object target, String fragment)
static boolean	isEmpty(String target)
static boolean	isEmptyOrWhitespace(String target)
static String	join(Iterable<?> target, char separator)
static String	join(Iterable<?> target, String separator)
static String	join(Object[] target, String separator)
static Integer	length(Object target)
static String	prepend(Object target, String prefix)
static String	randomAlphanumeric(int count)
static String	repeat(Object target, int times)
static String	replace(Object target, String before, String after)
static String[]	split(Object target, String separator)
static Boolean	startsWith(Object target, String prefix)
static String	substring(Object target, int beginIndex)	copy a part of target start beginIndex to the end of target.
static String	substring(Object target, int beginIndex, int endIndex)
static String	substringAfter(Object target, String substr)
static String	substringBefore(Object target, String substr)
static String	toLowerCase(Object target, Locale locale)
static String	toString(Object target)	Performs a null-safe toString() operation.
static String	toUpperCase(Object target, Locale locale)
static String	trim(Object target)
static String	unCapitalize(Object target)	Convert the first letter of target to lowercase.
static String	unescapeJava(Object target)	Un-escapes the specified Java-escaped target text back to normal form.
static String	unescapeJavaScript(Object target)	Un-escapes the specified JavaScript-escaped target text back to normal form.

Methods inherited from class java.lang.Object

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

Method Detail

toString

public static String toString(Object target)

Performs a null-safe toString() operation.

Parameters:

target - the object on which toString will be executed

Returns:

the result of calling target.toString() if target is not null, null if target is null.

Since:

2.0.12

abbreviate

public static String abbreviate(Object target,
                                int maxSize)

equals

public static Boolean equals(Object first,
                             Object second)

Parameters:

first - first

second - second

Returns:

the result

Since:

2.0.16

equalsIgnoreCase

public static Boolean equalsIgnoreCase(Object first,
                                       Object second)

Parameters:

first - first

second - second

Returns:

the result

Since:

2.0.16

contains

public static Boolean contains(Object target,
                               String fragment)

containsIgnoreCase

public static Boolean containsIgnoreCase(Object target,
                                         String fragment,
                                         Locale locale)

startsWith

public static Boolean startsWith(Object target,
                                 String prefix)

endsWith

public static Boolean endsWith(Object target,
                               String suffix)

substring

public static String substring(Object target,
                               int beginIndex,
                               int endIndex)

substring

public static String substring(Object target,
                               int beginIndex)

copy a part of target start beginIndex to the end of target. If non-String object, toString() will be called.

Parameters:

target - source of the copy.

beginIndex - index where the copy start.

Returns:

part of target, or null if target is null.

Since:

1.1.2

substringAfter

public static String substringAfter(Object target,
                                    String substr)

substringBefore

public static String substringBefore(Object target,
                                     String substr)

prepend

public static String prepend(Object target,
                             String prefix)

append

public static String append(Object target,
                            String suffix)

repeat

public static String repeat(Object target,
                            int times)

Parameters:

target - target

times - times

Returns:

the result

Since:

2.1.0

concat

public static String concat(Object... values)

Parameters:

values - values

Returns:

the result

Since:

2.0.16

concatReplaceNulls

public static String concatReplaceNulls(String nullValue,
                                        Object... values)

Parameters:

nullValue - nullValue

values - values

Returns:

the result

Since:

2.0.16

indexOf

public static Integer indexOf(Object target,
                              String fragment)

isEmpty

public static boolean isEmpty(String target)

Parameters:

target - target

Returns:

the result

Since:

2.1.0

isEmptyOrWhitespace

public static boolean isEmptyOrWhitespace(String target)

join

public static String join(Object[] target,
                          String separator)

join

public static String join(Iterable<?> target,
                          String separator)

join

public static String join(Iterable<?> target,
                          char separator)

split

public static String[] split(Object target,
                             String separator)

length

public static Integer length(Object target)

replace

public static String replace(Object target,
                             String before,
                             String after)

toUpperCase

public static String toUpperCase(Object target,
                                 Locale locale)

toLowerCase

public static String toLowerCase(Object target,
                                 Locale locale)

trim

public static String trim(Object target)

capitalize

public static String capitalize(Object target)

Convert the first letter of target to uppercase (title-case, in fact).

Parameters:

target - the String to be capitalized. If non-String object, toString() will be called.

Returns:

String the result of capitalizing the target.

Since:

1.1.2

unCapitalize

public static String unCapitalize(Object target)

Convert the first letter of target to lowercase.

Parameters:

target - the String to be uncapitalized. If non-String object, toString() will be called.

Returns:

String the result of uncapitalizing the target.

Since:

1.1.2

capitalizeWords

public static String capitalizeWords(Object target)

Convert all the first letter of the words of target to uppercase (title-case, in fact). The default delimiter characters between the words are the whitespace characters (see Characters.IsWhiteSpace method in the Java doc).

Parameters:

target - the String to be capitalized. If non-String object, toString() will be called.

Returns:

String the result of capitalizing the target.

Since:

1.1.2

capitalizeWords

public static String capitalizeWords(Object target,
                                     Object delimiters)

Convert all the first letter of the words of target to uppercase (title-case, in fact), using the specified delimiter chars for determining word ends/starts.

Parameters:

target - the String to be capitalized. If non-String object, toString() will be called.

delimiters - delimiters of the words. If non-String object, toString() will be called.

Returns:

String the result of capitalizing the target.

Since:

1.1.2

escapeXml

public static String escapeXml(Object target)

XML-escapes the specified text.

Parameters:

target - the text to be escaped

Returns:

the escaped text.

Since:

2.0.9

escapeJavaScript

public static String escapeJavaScript(Object target)

Escapes the specified target text as required for JavaScript code.

Parameters:

target - the text to be escaped

Returns:

the escaped text.

Since:

2.0.11

escapeJava

public static String escapeJava(Object target)

Escapes the specified target text as required for Java code.

Parameters:

target - the text to be escaped

Returns:

the escaped text.

Since:

2.0.11

unescapeJavaScript

public static String unescapeJavaScript(Object target)

Un-escapes the specified JavaScript-escaped target text back to normal form.

Parameters:

target - the text to be unescaped

Returns:

the unescaped text.

Since:

2.0.11

unescapeJava

public static String unescapeJava(Object target)

Un-escapes the specified Java-escaped target text back to normal form.

Parameters:

target - the text to be unescaped

Returns:

the unescaped text.

Since:

2.0.11

randomAlphanumeric

public static String randomAlphanumeric(int count)