org.cruxframework.crux.core.client.utils
Class StringUtils

java.lang.Object
  org.cruxframework.crux.core.client.utils.StringUtils

public class StringUtils
extends Object

Author:

Gesse S. F. Dafe, Thiago da Rosa de Bustamante, Samuel Almeida Cardoso (samuel@cruxframework.org)

Nested Class Summary

static interface	StringUtils.Collator
static class	StringUtils.CollatorFFandIE
static class	StringUtils.CollatorSafari

Constructor Summary

StringUtils()

Method Summary

static int	charCodeAt(String str, int i)
static boolean	containsValue(String multiValuedProperty, String value)
static boolean	equals(String a, String b) This method generates a faster string comparison than String.equals() for web mode code.
static int	getLevenshteinDistance(String s, String t) Find the Levenshtein distance between two Strings.
static boolean	isEmpty(String value)
static boolean	isNumeric(String str)
static boolean	isWhitespace(char c)
static int	localeCompare(String source, String target)
static int	localeCompare(String source, String target, boolean caseSensitive)
static String	lpad(String src, int length, char padding)
static String	removeAccents(String value)
static String	replace(String text, String searchString, String replacement)
static String	replace(String text, String searchString, String replacement, int max)
static String	rpad(String src, int length, char padding)
static String	rTrim(String value)
static double	safeParseDouble(String value)
static String	toHEXString(String input) Convert a raw UTF-8 string to a hex string.
static String	toUpperCaseFirstChar(String text) Transforms "some text" into "Some text"
static String	toUTF8(String utf16String) Encode an UTF-16 string (Unicode) to UTF-8.
static boolean	unsafeEquals(String a, String b) This method generate a faster string comparison than String.equals() for web mode code.

Methods inherited from class java.lang.Object

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

Constructor Detail

StringUtils

public StringUtils()

Method Detail

localeCompare

public static int localeCompare(String source,
                                String target)

localeCompare

public static int localeCompare(String source,
                                String target,
                                boolean caseSensitive)

removeAccents

public static String removeAccents(String value)

lpad

public static String lpad(String src,
                          int length,
                          char padding)

Parameters:

src -

length -

padding -

Returns:

rpad

public static String rpad(String src,
                          int length,
                          char padding)

Parameters:

src -

length -

padding -

Returns:

isEmpty

public static boolean isEmpty(String value)

Parameters:

value -

Returns:

replace

public static String replace(String text,
                             String searchString,
                             String replacement)

Parameters:

text -

searchString -

replacement -

Returns:

replace

public static String replace(String text,
                             String searchString,
                             String replacement,
                             int max)

Parameters:

text -

searchString -

replacement -

max -

Returns:

toUpperCaseFirstChar

public static String toUpperCaseFirstChar(String text)

Transforms "some text" into "Some text"

Parameters:

text -

Returns:

equals

public static boolean equals(String a,
                             String b)

This method generates a faster string comparison than String.equals() for web mode code. The GWT generated String.equals() method makes a check in its parameter's type in runtime. That method makes that assertion on compilation time (once its parameters are both Strings).

Parameters:

a -

b -

Returns:

unsafeEquals

public static boolean unsafeEquals(String a,
                                   String b)

This method generate a faster string comparison than String.equals() for web mode code. It is similar to StringUtils.equals() method. The only difference is that this one does not check for null parameters.

Parameters:

a -

b -

Returns:

safeParseDouble

public static double safeParseDouble(String value)

Parameters:

value -

Returns:

containsValue

public static boolean containsValue(String multiValuedProperty,
                                    String value)

Parameters:

multiValuedProperty -

value -

Returns:

rTrim

public static String rTrim(String value)

isWhitespace

public static boolean isWhitespace(char c)

getLevenshteinDistance

public static int getLevenshteinDistance(String s,
                                         String t)

Find the Levenshtein distance between two Strings.

 StringUtils.getLevenshteinDistance(null, *)             = IllegalArgumentException
 StringUtils.getLevenshteinDistance(*, null)             = IllegalArgumentException
 StringUtils.getLevenshteinDistance("","")               = 0
 StringUtils.getLevenshteinDistance("","a")              = 1
 StringUtils.getLevenshteinDistance("aaapppp", "")       = 7
 StringUtils.getLevenshteinDistance("frog", "fog")       = 1
 StringUtils.getLevenshteinDistance("fly", "ant")        = 3
 StringUtils.getLevenshteinDistance("elephant", "hippo") = 7
 StringUtils.getLevenshteinDistance("hippo", "elephant") = 7
 StringUtils.getLevenshteinDistance("hippo", "zzzzzzzz") = 8
 StringUtils.getLevenshteinDistance("hello", "hallo")    = 1
 

Parameters:

s - the first String, must not be null

t - the second String, must not be null

Returns:

result distance

Throws:

IllegalArgumentException - if either String input null

isNumeric

public static boolean isNumeric(String str)

charCodeAt

public static int charCodeAt(String str,
                             int i)

toUTF8

public static String toUTF8(String utf16String)

Encode an UTF-16 string (Unicode) to UTF-8. DOM Strings are UTF-16 by default

Parameters:

utf16String -

Returns:

utf-8 encoded string

toHEXString

public static String toHEXString(String input)

Convert a raw UTF-8 string to a hex string.

Parameters:

input -

Returns: