Package net.dv8tion.jda.internal.utils

Class Helpers

java.lang.Object

net.dv8tion.jda.internal.utils.Helpers

public final class Helpers
extends Object

This class has major inspiration from Lang 3

Specifically StringUtils.java and ExceptionUtils.java

Constructor Summary

Constructors

Constructor	Description
Helpers()

Method Summary

Modifier and Type	Method	Description
static <T extends Throwable> T	appendCause(T throwable, Throwable cause)
static int	codePointLength(CharSequence string)
static boolean	containsWhitespace(CharSequence seq)
static gnu.trove.map.TLongObjectMap<DataObject>	convertToMap(ToLongFunction<DataObject> getId, DataArray array)
static <E> @Unmodifiable List<E>	copyAsUnmodifiableList(Collection<? extends E> items)
static <E extends Enum<E>> EnumSet<E>	copyEnumSet(Class<E> clazz, Collection<E> col)
static int	countMatches(CharSequence seq, char c)
static boolean	deepEquals(Collection<?> first, Collection<?> second)
static boolean	deepEqualsUnordered(Collection<?> first, Collection<?> second)
static String	durationToString(Duration duration, TimeUnit resolutionUnit)
static <T> Consumer<T>	emptyConsumer()
static boolean	equals(String a, String b, boolean ignoreCase)
static String	format(String format, Object... args)
static String	getLastPathSegment(String url)
static boolean	hasCause(Throwable throwable, Class<? extends Throwable> cause)
static boolean	isBlank(CharSequence seq)
static boolean	isEmpty(CharSequence seq)
static boolean	isNumeric(String input)
static String	leftPad(String input, int size)
static <T> List<T>	listOf(T... elements)
static <I, O> Stream<O>	mapGracefully(Stream<I> stream, Function<I,O> mapper, String errorDescription)
static <E> List<E>	mergeVararg(E first, E... other)
static String	rightPad(String input, int size)
static <T> Set<T>	setOf(T... elements)
static String[]	split(String input, String match)
static <T> Collector<T,?,DataArray>	toDataArray()
static OffsetDateTime	toOffset(long instant)
static OffsetDateTime	toOffsetDateTime(TemporalAccessor temporal)
static long	toTimestamp(String iso8601String)
static <E extends Enum<E>> Collector<E,?,Set<E>>	toUnmodifiableEnumSet(Class<E> enumType)
static <T> Collector<T,?,List<T>>	toUnmodifiableList()
static String	truncate(String input, int maxWidth)
static <I, O> Function<I,Result<O>>	tryMap(Function<I,O> mapper)
static <E extends Enum<E>> Set<E>	unmodifiableEnumSet(E first, E... rest)

Methods inherited from class java.lang.Object

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

Constructor Details

Helpers

public Helpers()

Method Details

emptyConsumer

public static <T> Consumer<T> emptyConsumer()

toOffset

public static OffsetDateTime toOffset(long instant)

toTimestamp

public static long toTimestamp(String iso8601String)

toOffsetDateTime

public static OffsetDateTime toOffsetDateTime(@Nullable
 TemporalAccessor temporal)

format

public static String format(String format,
 Object... args)

isEmpty

public static boolean isEmpty(CharSequence seq)

containsWhitespace

public static boolean containsWhitespace(CharSequence seq)

isBlank

public static boolean isBlank(CharSequence seq)

countMatches

public static int countMatches(CharSequence seq,
 char c)

truncate

public static String truncate(String input,
 int maxWidth)

rightPad

public static String rightPad(String input,
 int size)

leftPad

public static String leftPad(String input,
 int size)

isNumeric

public static boolean isNumeric(String input)

codePointLength

public static int codePointLength(CharSequence string)

split

public static String[] split(String input,
 String match)

equals

public static boolean equals(String a,
 String b,
 boolean ignoreCase)

deepEquals

public static boolean deepEquals(Collection<?> first,
 Collection<?> second)

deepEqualsUnordered

public static boolean deepEqualsUnordered(Collection<?> first,
 Collection<?> second)

copyEnumSet

public static <E extends Enum<E>> EnumSet<E> copyEnumSet(Class<E> clazz,
 Collection<E> col)

setOf

@SafeVarargs
public static <T> Set<T> setOf(T... elements)

listOf

@SafeVarargs
public static <T> List<T> listOf(T... elements)

convertToMap

public static gnu.trove.map.TLongObjectMap<DataObject> convertToMap(ToLongFunction<DataObject> getId,
 DataArray array)

tryMap

public static <I,
O> Function<I,Result<O>> tryMap(Function<I,O> mapper)

mapGracefully

public static <I,
O> Stream<O> mapGracefully(Stream<I> stream,
 Function<I,O> mapper,
 String errorDescription)

appendCause

public static <T extends Throwable> T appendCause(T throwable,
 Throwable cause)

hasCause

public static boolean hasCause(Throwable throwable,
 Class<? extends Throwable> cause)

toUnmodifiableList

public static <T> Collector<T,?,List<T>> toUnmodifiableList()

toUnmodifiableEnumSet

public static <E extends Enum<E>>
Collector<E,?,Set<E>> toUnmodifiableEnumSet(Class<E> enumType)

unmodifiableEnumSet

@SafeVarargs
public static <E extends Enum<E>> Set<E> unmodifiableEnumSet(E first,
 E... rest)

copyAsUnmodifiableList

@Nonnull
public static <E> @Unmodifiable List<E> copyAsUnmodifiableList(@Nonnull
 Collection<? extends E> items)

mergeVararg

@Nonnull
@SafeVarargs
public static <E> List<E> mergeVararg(@Nonnull
 E first,
 @Nonnull
 E... other)

toDataArray

public static <T> Collector<T,?,DataArray> toDataArray()

durationToString

public static String durationToString(Duration duration,
 TimeUnit resolutionUnit)

getLastPathSegment

@Nonnull
public static String getLastPathSegment(@Nonnull
 String url)