net.lenni0451.commandlib.utils

Class Util

java.lang.Object

net.lenni0451.commandlib.utils.Util

public class Util
extends java.lang.Object

Some useful methods required by the command lib.

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.regex.Pattern	DECIMAL_PATTERN A pattern to check if a string is a decimal number.
static java.util.regex.Pattern	INT_PATTERN A pattern to check if a string is an integer number.

Constructor Summary

Constructors

Constructor and Description
Util()

Method Summary

Modifier and Type	Method and Description
static <E> ArgumentRequirement<E>	and(ArgumentRequirement<E>... predicates) And chain multiple argument requirements.
static java.lang.String	beautify(java.lang.Enum<?> value, boolean addSpaces) Beautify the name of an enum value.
static <T> T	cast(java.lang.Object o) Cast anything to anything else.
static <T> java.util.Optional<T>	ofThrowing(ThrowingSupplier<T> supplier) Get an optional from a throwing supplier.
static void	prepend(java.util.Set<java.lang.String> set, java.lang.String prefix) Prepend all strings in a set with a prefix.
static <K,V> java.util.LinkedHashMap<K,V>	sortMap(java.util.Map<K,V> map, java.util.Comparator<java.util.Map.Entry<K,V>> comparator) Sort a map by a comparator.

Methods inherited from class java.lang.Object

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

Field Detail

INT_PATTERN

public static final java.util.regex.Pattern INT_PATTERN

A pattern to check if a string is an integer number.

DECIMAL_PATTERN

public static final java.util.regex.Pattern DECIMAL_PATTERN

A pattern to check if a string is a decimal number.

Constructor Detail

Util

public Util()

Method Detail

ofThrowing

public static <T> java.util.Optional<T> ofThrowing(ThrowingSupplier<T> supplier)

Get an optional from a throwing supplier.
If the supplier throws an exception the optional will be empty.

Type Parameters:

T - The type of the optional

Parameters:

supplier - The supplier

Returns:

The optional

cast

public static <T> T cast(java.lang.Object o)

Cast anything to anything else.
Be aware of class cast exceptions.

Type Parameters:

T - The type to cast to

Parameters:

o - The object to cast

Returns:

The casted object

Throws:

java.lang.ClassCastException - If the cast is not possible

sortMap

public static <K,V> java.util.LinkedHashMap<K,V> sortMap(java.util.Map<K,V> map,
                                                         java.util.Comparator<java.util.Map.Entry<K,V>> comparator)

Sort a map by a comparator.

Type Parameters:

K - The key type

V - The value type

Parameters:

map - The map to sort

comparator - The comparator to sort by

Returns:

The sorted map

prepend

public static void prepend(java.util.Set<java.lang.String> set,
                           java.lang.String prefix)

Prepend all strings in a set with a prefix.
The set will be cleared and filled with the prepended strings.

Parameters:

set - The set to prepend

prefix - The prefix to prepend

beautify

public static java.lang.String beautify(java.lang.Enum<?> value,
                                        boolean addSpaces)

Beautify the name of an enum value.
Example: "MY_ENUM_VALUE" -> "My Enum Value"

Parameters:

value - The enum value

addSpaces - If spaces should be added

Returns:

The beautified name

and

public static <E> ArgumentRequirement<E> and(ArgumentRequirement<E>... predicates)

And chain multiple argument requirements.
If one of the requirements fails the remaining requirements will not be checked.

Type Parameters:

E - The type of the predicate

Parameters:

predicates - The predicates to check

Returns:

The predicate