ai.libs.jaicore.basic

Class StringUtil

java.lang.Object

ai.libs.jaicore.basic.StringUtil

public class StringUtil
extends java.lang.Object

This class provides handy utility functions when dealing with Strings.

Method Summary

Modifier and Type	Method and Description
static java.lang.String[]	explode(java.lang.String string, java.lang.String delimiter) Splits a string using delimiter as a separator of elements into an array.
static java.lang.String	fromBinary(java.lang.String binarySequence) Translates a binary representation of a string to the respective string.
static java.lang.String[]	getArrayWithValues(int size, java.lang.String value)
static char[]	getCommonChars(boolean includeDigits) Getter for all available common characters of the system.
static java.lang.String	getRandomString(int length, char[] chars, long seed) Returns a random string of a desired length and from a given set of characters.
static java.lang.String	implode(java.util.Collection<?> set, java.lang.String delimiter) Concatenates the string representations of a set of objects using the specified delimiter as a separator.
static java.lang.String	implode(java.util.Collection<java.lang.Object> collection) Concatenates the string representations of a collection of objects using ", " as a separator.
static java.lang.String	implode(java.lang.Object[] array) Concatenates the string representations of an array of objects using ", " as a separator.
static java.lang.String	implode(java.lang.Object[] array, java.lang.String delimiter) Concatenates the string representations of an array of objects using the specified delimiter as a separator.
static java.lang.String	implode(java.util.Set<java.lang.Object> set) Concatenates the string representations of a set of objects using ", " as a separator.
static java.lang.String[]	merge(java.lang.String[] array1, java.lang.String[] array2) Merges two string arrays into one single array.
static java.lang.String[]	shiftFirst(java.lang.String[] input) Removes the first entry of the value and returns an array containing all values but the first one.
static java.lang.String	stripChar(java.lang.String str, char c) Strips a specific character from a string.
static java.lang.String	toStringLimited(java.lang.Object o, int limit) Limits the toString output of an object to a specified length.

Methods inherited from class java.lang.Object

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

Method Detail

getCommonChars

public static char[] getCommonChars(boolean includeDigits)

Getter for all available common characters of the system. Digits can be included if desired.

Parameters:

includeDigits - Flag whether to include digits in the array of the system's common characters.

Returns:

An array of the system's common characters.

getRandomString

public static java.lang.String getRandomString(int length,
                                               char[] chars,
                                               long seed)

Returns a random string of a desired length and from a given set of characters.

Parameters:

length - The length of the resulting random string.

chars - The set of characters to be used to generate a random string.

Returns:

The generated random string.

implode

public static java.lang.String implode(java.lang.Object[] array)

Concatenates the string representations of an array of objects using ", " as a separator.

Parameters:

array - The array of objects of which the string representation is to be concatenated.

Returns:

The concatenated string of the given objects' string representation.

implode

public static java.lang.String implode(java.util.Set<java.lang.Object> set)

Concatenates the string representations of a set of objects using ", " as a separator.

Parameters:

set - The set of objects of which the string representation is to be concatenated.

Returns:

The concatenated string of the given objects' string representation.

implode

public static java.lang.String implode(java.util.Collection<?> set,
                                       java.lang.String delimiter)

Concatenates the string representations of a set of objects using the specified delimiter as a separator.

Parameters:

set - The set of objects of which the string representation is to be concatenated.

delimter - A string separating the respective string representations.

Returns:

The concatenated string of the given objects' string representation.

implode

public static java.lang.String implode(java.util.Collection<java.lang.Object> collection)

Concatenates the string representations of a collection of objects using ", " as a separator.

Parameters:

collection - The set of objects of which the string representation is to be concatenated.

Returns:

The concatenated string of the given objects' string representation.

implode

public static java.lang.String implode(java.lang.Object[] array,
                                       java.lang.String delimiter)

Concatenates the string representations of an array of objects using the specified delimiter as a separator.

Parameters:

array - The array of objects of which the string representation is to be concatenated.

delimter - A string separating the respective string representations.

Returns:

The concatenated string of the given objects' string representation.

explode

public static java.lang.String[] explode(java.lang.String string,
                                         java.lang.String delimiter)

Splits a string using delimiter as a separator of elements into an array.

Parameters:

string - The string to be split.

delimiter - A string separating the sub-strings.

Returns:

An array of sub-string which were formerly separeted by the specified delimiter.

merge

public static java.lang.String[] merge(java.lang.String[] array1,
                                       java.lang.String[] array2)

Merges two string arrays into one single array. Note: This is a duplicate for apache-commons-lang: ArrayUtils.addAll(array1, array2);

Parameters:

array1 - The first array.

array2 - The second array.

Returns:

Concatenated array of Strings.

getArrayWithValues

public static java.lang.String[] getArrayWithValues(int size,
                                                    java.lang.String value)

stripChar

public static java.lang.String stripChar(java.lang.String str,
                                         char c)

Strips a specific character from a string.

Parameters:

str - The string from which the character shall be stripped.

c - The character to strip.

Returns:

The stripped string where the specified character does not occur any longer.

shiftFirst

public static java.lang.String[] shiftFirst(java.lang.String[] input)

Removes the first entry of the value and returns an array containing all values but the first one.

Parameters:

input - The array of values to be shifted.

Returns:

The resulting shifted array.

fromBinary

public static java.lang.String fromBinary(java.lang.String binarySequence)

Translates a binary representation of a string to the respective string.

Parameters:

binarySequence - The binary encoding of the string.

Returns:

The translated string.

toStringLimited

public static java.lang.String toStringLimited(java.lang.Object o,
                                               int limit)

Limits the toString output of an object to a specified length.

Parameters:

o - The object for which a string limited string representation is to be obtained.

limit - The maximum length of the toString output.

Returns:

The resulting (potentially cut) string.