dev.jeka.core.api.utils

Class JkUtilsIterable

java.lang.Object

dev.jeka.core.api.utils.JkUtilsIterable

public final class JkUtilsIterable
extends java.lang.Object

Utility class for dealing with Iterable.

Constructor Summary

Constructors

Constructor and Description
JkUtilsIterable()

Method Summary

Modifier and Type	Method and Description
static <T> void	addAllWithoutDuplicate(java.util.Collection<T> recipientList, java.lang.Iterable<? extends T> items) Adds items to the specified recipient list.
static <T> T[]	arrayOf(java.lang.Iterable<T> it, java.lang.Class<T> clazz) Creates an array of the specified class and populate it with items of the specified Iterable.
static <T> T[]	concat(T[] a, T[] b) Concatenates two arrays
static <T> java.util.List<T>	concatLists(java.lang.Iterable<? extends T>... lists) Returns a list that is a concatenation of the specified lists.
static <T> java.util.List<T>	listOf(java.lang.Iterable<T> it) Returns a list form the specified Iterable.
static <T> java.util.List<T>	listOf(T... items)
static <T> java.util.List<T>	listOf1orMore(T item1, T... others)
static <T> java.util.List<T>	listOf2orMore(T item1, T item2, T... others)
static <T> java.util.List<T>	listWithoutDuplicateOf(java.lang.Iterable<T> items) Returns a duplicate free list of the given items
static <T,U> java.util.Map<T,U>	mapOf(T key, U value, java.lang.Object... others) Creates a map of specified key/value.
static <T,U> java.util.Map<T,U>	mapOfAny(java.lang.Object... others) Creates a map of specified key/value.
static java.util.Map<java.lang.String,java.lang.String>	propertiesToMap(java.util.Properties properties) Creates a Map and populates it with specified properties.
static <K,V> void	putMultiEntry(java.util.Map<K,V> map, java.lang.Iterable<K> keys, V value) Convenient method to put several entry in a map having the same value at once.
static java.util.List<java.lang.String>	readStringSafelyFrom(java.nio.file.Path path, java.lang.String delimiter)
static java.util.List<java.lang.String>	readStringsFrom(java.nio.file.Path path, java.lang.String delimiter)
static <T> java.util.Set<T>	setOf(java.lang.Iterable<T> items) Creates a set of specified items.
static <T> java.util.Set<T>	setOf(T... items) Creates a set of specified items.
static java.lang.String	toMultiLineString(java.lang.Iterable<?> items, java.lang.String margin)
static java.lang.String	toString(java.util.Map<?,?> map) Returns a string representation of the specified map constructed as [key0]=[value0], [key1]=[value1], ...
static java.util.List<java.lang.String>	toStrings(java.util.Map<?,?> map) Returns a multi-line string representation of the specified map constructed as [key0]=[value0], [key1]=[value1], ...
static void	writeStringsTo(java.nio.file.Path path, java.lang.String delimiter, java.util.List<java.lang.String> strings)

Methods inherited from class java.lang.Object

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

Constructor Detail

JkUtilsIterable

public JkUtilsIterable()

Method Detail

listOf

public static <T> java.util.List<T> listOf(java.lang.Iterable<T> it)

Returns a list form the specified Iterable. If the specified Iterable is yet a List than it is returned as is, otherwise a brand new List is created.

listOf

@SafeVarargs
public static <T> java.util.List<T> listOf(T... items)

See Also:

listOf(Iterable)

listOf2orMore

@SafeVarargs
public static <T> java.util.List<T> listOf2orMore(T item1,
                                                               T item2,
                                                               T... others)

See Also:

listOf(Iterable)

listOf1orMore

@SafeVarargs
public static <T> java.util.List<T> listOf1orMore(T item1,
                                                               T... others)

See Also:

listOf(Iterable)

listWithoutDuplicateOf

public static <T> java.util.List<T> listWithoutDuplicateOf(java.lang.Iterable<T> items)

Returns a duplicate free list of the given items

addAllWithoutDuplicate

public static <T> void addAllWithoutDuplicate(java.util.Collection<T> recipientList,
                                              java.lang.Iterable<? extends T> items)

Adds items to the specified recipient list. Only item not already present in the recipient list are added.

arrayOf

public static <T> T[] arrayOf(java.lang.Iterable<T> it,
                              java.lang.Class<T> clazz)

Creates an array of the specified class and populate it with items of the specified Iterable.

setOf

@SafeVarargs
public static <T> java.util.Set<T> setOf(T... items)

Creates a set of specified items.

setOf

public static <T> java.util.Set<T> setOf(java.lang.Iterable<T> items)

Creates a set of specified items.

mapOf

public static <T,U> java.util.Map<T,U> mapOf(T key,
                                             U value,
                                             java.lang.Object... others)

Creates a map of specified key/value. Key of should be declared in sequence as mapOf(key1, value1, key2, value2,...)

mapOfAny

public static <T,U> java.util.Map<T,U> mapOfAny(java.lang.Object... others)

Creates a map of specified key/value. Key of should be declared in sequence as mapOf(key1, value1, key2, value2,...)

putMultiEntry

public static <K,V> void putMultiEntry(java.util.Map<K,V> map,
                                       java.lang.Iterable<K> keys,
                                       V value)

Convenient method to put several entry in a map having the same value at once.

concatLists

@SafeVarargs
public static <T> java.util.List<T> concatLists(java.lang.Iterable<? extends T>... lists)

Returns a list that is a concatenation of the specified lists. The result is not backed by specified Iterable.

propertiesToMap

public static java.util.Map<java.lang.String,java.lang.String> propertiesToMap(java.util.Properties properties)

Creates a Map and populates it with specified properties.

toString

public static java.lang.String toString(java.util.Map<?,?> map)

Returns a string representation of the specified map constructed as [key0]=[value0], [key1]=[value1], ...

toStrings

public static java.util.List<java.lang.String> toStrings(java.util.Map<?,?> map)

Returns a multi-line string representation of the specified map constructed as [key0]=[value0], [key1]=[value1], ...

concat

public static <T> T[] concat(T[] a,
                             T[] b)

Concatenates two arrays

toMultiLineString

public static java.lang.String toMultiLineString(java.lang.Iterable<?> items,
                                                 java.lang.String margin)

writeStringsTo

public static void writeStringsTo(java.nio.file.Path path,
                                  java.lang.String delimiter,
                                  java.util.List<java.lang.String> strings)

readStringsFrom

public static java.util.List<java.lang.String> readStringsFrom(java.nio.file.Path path,
                                                               java.lang.String delimiter)

readStringSafelyFrom

public static java.util.List<java.lang.String> readStringSafelyFrom(java.nio.file.Path path,
                                                                    java.lang.String delimiter)