water.util

Class StringUtils

java.lang.Object

water.util.StringUtils

public class StringUtils
extends java.lang.Object

String manipulation utilities.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	PADDING_SYMBOL

Constructor Summary

Constructors

Constructor and Description
StringUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static byte[]	bytesOf(java.lang.CharSequence str)
static java.lang.String	cleanString(java.lang.String s)
static java.lang.String	expandPath(java.lang.String path) Expand ~ to user.home
static boolean	isNullOrEmpty(BufferedString s)
static boolean	isNullOrEmpty(java.lang.String s) Convenience function to test whether a string is empty.
static java.lang.String	join(java.lang.String delimiter, java.lang.Iterable<java.lang.String> strings) Join the array with the given delimiter, and return it as a string.
static java.lang.String	join(java.lang.String delimiter, java.lang.String[] arr) Join the array with the given delimiter, and return it as a string.
static java.util.ArrayList<int[]>	texts2array(java.util.List<java.lang.String> texts)
static byte[]	toBytes(java.lang.Object value)
static java.lang.Character[]	toCharacterArray(java.lang.String src)
static java.util.HashSet<java.lang.Character>	toCharacterSet(java.lang.String src) Convert a string into the set of its characters.
static java.lang.String[]	tokenize(java.lang.String text)
static int[]	tokensToArray(java.lang.String[] tokens, int padToLength, java.util.Map<java.lang.String,java.lang.Integer> dict)
static java.lang.String	toString(byte[] bytes, int from, int length)
static java.lang.String	toString(java.lang.Throwable t) Print exception stack trace into a string.
static int	unhex(java.lang.String str)

Methods inherited from class java.lang.Object

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

Field Detail

PADDING_SYMBOL

public static java.lang.String PADDING_SYMBOL

Constructor Detail

StringUtils

public StringUtils()

Method Detail

toString

public static java.lang.String toString(java.lang.Throwable t)

Print exception stack trace into a string.

Parameters:

t - an exception

Returns:

string containing pretty printed exception

isNullOrEmpty

public static boolean isNullOrEmpty(java.lang.String s)

Convenience function to test whether a string is empty.

Parameters:

s - String to test

Returns:

True if the string is either null or empty, false otherwise

isNullOrEmpty

public static boolean isNullOrEmpty(BufferedString s)

expandPath

public static java.lang.String expandPath(java.lang.String path)

Expand ~ to user.home

Parameters:

path - that can (but doesn't have to) contain a tilde (~)

Returns:

expanded path

cleanString

public static java.lang.String cleanString(java.lang.String s)

tokenize

public static java.lang.String[] tokenize(java.lang.String text)

tokensToArray

public static int[] tokensToArray(java.lang.String[] tokens,
                  int padToLength,
                  java.util.Map<java.lang.String,java.lang.Integer> dict)

texts2array

public static java.util.ArrayList<int[]> texts2array(java.util.List<java.lang.String> texts)

join

public static java.lang.String join(java.lang.String delimiter,
                    java.lang.String[] arr)

Join the array with the given delimiter, and return it as a string.

Parameters:

delimiter - string to be used as a separator between array elements

arr - the array to join

Returns:

a single string containing all elements in `arr` joined together

join

public static java.lang.String join(java.lang.String delimiter,
                    java.lang.Iterable<java.lang.String> strings)

Join the array with the given delimiter, and return it as a string.

Parameters:

delimiter - string to be used as a separator between array elements

strings - the strings to join

Returns:

a single string containing all elements in `strings` joined together

toCharacterSet

public static java.util.HashSet<java.lang.Character> toCharacterSet(java.lang.String src)

Convert a string into the set of its characters.

Parameters:

src - Source string

Returns:

Set of characters within the source string

toCharacterArray

public static java.lang.Character[] toCharacterArray(java.lang.String src)

unhex

public static int unhex(java.lang.String str)

bytesOf

public static byte[] bytesOf(java.lang.CharSequence str)

toBytes

public static byte[] toBytes(java.lang.Object value)

toString

public static java.lang.String toString(byte[] bytes,
                        int from,
                        int length)