Package ru.dest.library.utils

Class Utils

java.lang.Object

ru.dest.library.utils.Utils

public class Utils
extends Object

Constructor Summary

Constructors

Constructor	Description
Utils()

Method Summary

Modifier and Type	Method	Description
static @NotNull String	argsToString(String @NotNull [] args)	Transforms string array to a single string
static @NotNull String	argsToString(String @NotNull [] args, int startPos)	Transforms string array to a single string with start position
static @NotNull String	argsToString(String @NotNull [] args, int startPos, String separator)
static @NotNull String	argsToString(String @NotNull [] args, String separator)
static @NotNull String	collectionToString(@NotNull Collection<String> collection)	Transforms Collection of String to a single string
static @NotNull String	collectionToString(@NotNull Collection<String> collection, String separator)	Transforms Collection of String to a single string with specified separator
static @NotNull String	collectionToString(@NotNull List<String> collection, int startPos)	Transforms List of String to a single string with start position
static @NotNull String	collectionToString(@NotNull List<String> collection, int startPos, String separator)	Transforms List of String to a single string with specified separator and start position
static @NotNull String	collectionToString(@NotNull List<String> collection, String separator)	Transforms List of String to a single string with specified separator
static <T> void	executeIf(T t, @NotNull Consumer<T> c, @NotNull Predicate<T> p)	Call consumer if result of given Predicate equals true
static <T> void	forEachIf(@NotNull Collection<T> collection, @NotNull Consumer<T> c, @NotNull Predicate<T> p)	Call consumer if result of given Predicate equals true
static <T> @NotNull List<T>	newList(T... values)	Convert given objects array to list of objects;

Methods inherited from class java.lang.Object

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

Constructor Detail

Utils

public Utils()

Method Detail

argsToString

@NotNull
public static @NotNull String argsToString(String @NotNull [] args)

Transforms string array to a single string

Parameters:

args - - array of strings

Returns:

resulting string

argsToString

@NotNull
public static @NotNull String argsToString(String @NotNull [] args,
                                           int startPos)

Transforms string array to a single string with start position

Parameters:

args - - array of strings

startPos - - number of the element from which need start

Returns:

resulting string

argsToString

@NotNull
public static @NotNull String argsToString(String @NotNull [] args,
                                           String separator)

argsToString

@NotNull
public static @NotNull String argsToString(String @NotNull [] args,
                                           int startPos,
                                           String separator)

collectionToString

@NotNull
public static @NotNull String collectionToString(@NotNull
                                                 @NotNull Collection<String> collection)

Transforms Collection of String to a single string

Parameters:

collection - - collection of strings

Returns:

resulting string

collectionToString

@NotNull
public static @NotNull String collectionToString(@NotNull
                                                 @NotNull Collection<String> collection,
                                                 String separator)

Transforms Collection of String to a single string with specified separator

Parameters:

collection - - collection of strings

separator - - separator

Returns:

resulting string

collectionToString

@NotNull
public static @NotNull String collectionToString(@NotNull
                                                 @NotNull List<String> collection,
                                                 int startPos)

Transforms List of String to a single string with start position

Parameters:

collection - - collection of strings

startPos - - number of the element from which need start

Returns:

resulting string

collectionToString

@NotNull
public static @NotNull String collectionToString(@NotNull
                                                 @NotNull List<String> collection,
                                                 String separator)

Transforms List of String to a single string with specified separator

Parameters:

collection - - collection of strings

separator - - separator

Returns:

resulting string

collectionToString

@NotNull
public static @NotNull String collectionToString(@NotNull
                                                 @NotNull List<String> collection,
                                                 int startPos,
                                                 String separator)

Transforms List of String to a single string with specified separator and start position

Parameters:

collection - - collection of strings

separator - - separator

startPos - - number of element from which we need to start

Returns:

resulting string

newList

@SafeVarargs
@Contract("_ -> new")
@NotNull
public static <T> @NotNull List<T> newList(T... values)

Convert given objects array to list of objects;

Type Parameters:

T - type of objects;

Parameters:

values - - list of objects

Returns:

list of given objects;

executeIf

public static <T> void executeIf(@NotNull
                                 T t,
                                 @NotNull
                                 @NotNull Consumer<T> c,
                                 @NotNull
                                 @NotNull Predicate<T> p)

Call consumer if result of given Predicate equals true

Type Parameters:

T - type of checking object

Parameters:

t - object which will be checked

c - consumer which will be called

p - checking condition

forEachIf

public static <T> void forEachIf(@NotNull
                                 @NotNull Collection<T> collection,
                                 @NotNull
                                 @NotNull Consumer<T> c,
                                 @NotNull
                                 @NotNull Predicate<T> p)

Call consumer if result of given Predicate equals true

Type Parameters:

T - type of checking object

Parameters:

collection - Collection of objects which will be checked

c - consumer which will be called

p - checking condition