org.mule.runtime.core.api.util

Class StringUtils

java.lang.Object

org.mule.runtime.core.api.util.StringUtils

public class StringUtils
extends Object

StringUtils contains useful methods for manipulating Strings.

Field Summary

Fields

Modifier and Type	Field and Description
static String	DASH
static String	EMPTY
static String	WHITE_SPACE

Constructor Summary

Constructors

Constructor and Description
StringUtils()

Method Summary

Modifier and Type	Method and Description
static byte[]	hexStringToByteArray(String hex) Convert a hexadecimal string into its byte representation.
static void	ifNotBlank(String value, Consumer<String> consumer) If value is not isBlank(String), then it feeds the value into the consumer
static boolean	isBlank(String str)
static boolean	isEmpty(String str)
static String	match(Pattern pattern, String value, int matchIndex) Matches the given value to the given pattern.
static String	repeat(char c, int len) Like StringUtils.repeat(String, int) but with a single character as argument.
static String[]	splitAndTrim(String string, String delim) Like StringUtils.split(String, String), but additionally trims whitespace from the result tokens.
static String	toHexString(byte[] bytes)
static String	toHexString(byte[] bytes, boolean uppercase) Convert a byte array to a hexadecimal string.
static String	trim(String str)

Methods inherited from class java.lang.Object

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

Field Detail

WHITE_SPACE

public static final String WHITE_SPACE

See Also:

Constant Field Values

DASH

public static final String DASH

See Also:

Constant Field Values

EMPTY

public static final String EMPTY

See Also:

Constant Field Values

Constructor Detail

StringUtils

public StringUtils()

Method Detail

splitAndTrim

public static String[] splitAndTrim(String string,
                                    String delim)

Like StringUtils.split(String, String), but additionally trims whitespace from the result tokens.

hexStringToByteArray

public static byte[] hexStringToByteArray(String hex)

Convert a hexadecimal string into its byte representation.

Parameters:

hex - The hexadecimal string.

Returns:

The converted bytes or null if the hex String is null.

repeat

public static String repeat(char c,
                            int len)

Like StringUtils.repeat(String, int) but with a single character as argument.

toHexString

public static String toHexString(byte[] bytes)

See Also:

toHexString(byte[])

toHexString

public static String toHexString(byte[] bytes,
                                 boolean uppercase)

Convert a byte array to a hexadecimal string.

Parameters:

bytes - The bytes to format.

uppercase - When true creates uppercase hex characters instead of lowercase (the default).

Returns:

A hexadecimal representation of the specified bytes.

match

public static String match(Pattern pattern,
                           String value,
                           int matchIndex)
                    throws IllegalArgumentException

Matches the given value to the given pattern. Then returns the group at matchIndex.

Parameters:

pattern - the pattern to use as regexp

value - the value to evaluate

matchIndex - the group index to be returned

Returns:

the value of the group at the given index. null if no match found

Throws:

IllegalArgumentException - if pattern or value are null.

ifNotBlank

public static void ifNotBlank(String value,
                              Consumer<String> consumer)

If value is not isBlank(String), then it feeds the value into the consumer

Parameters:

value - a value

consumer - a String Consumer

isEmpty

public static boolean isEmpty(String str)

isBlank

public static boolean isBlank(String str)

trim

public static String trim(String str)