Package com.github.victools.jsonschema.generator.impl

Class Util

java.lang.Object

com.github.victools.jsonschema.generator.impl.Util

public final class Util
extends Object

Utility class offering various helper functions to simplify common checks, e.g., with the goal reduce the complexity of checks and conditions.

Method Summary

Modifier and Type	Method	Description
static boolean	isNullOrEmpty(com.fasterxml.jackson.databind.JsonNode node)
static boolean	isNullOrEmpty(Object[] array)	Check whether the given array is either null or empty (i.e., has zero length).
static boolean	isNullOrEmpty(String string)	Check whether the given text value is either null or empty (i.e., has zero length).
static boolean	isNullOrEmpty(Collection<?> collection)	Check whether the given collection is either null or empty (i.e., has zero size).
static <T> List<T>	nullSafe(List<T> list)	Ensure the given list into a List containing its items.
static <T> List<T>	nullSafe(T[] array)	Convert the given array into a List containing its items.
static boolean	nullSafeEquals(Object one, Object other)	Ensure the two given values are either both null or equal to each other.

Methods inherited from class java.lang.Object

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

Method Detail

isNullOrEmpty

public static boolean isNullOrEmpty(String string)

Check whether the given text value is either null or empty (i.e., has zero length).

Parameters:

string - the text value to check

Returns:

check result

isNullOrEmpty

public static boolean isNullOrEmpty(com.fasterxml.jackson.databind.JsonNode node)

isNullOrEmpty

public static boolean isNullOrEmpty(Object[] array)

Check whether the given array is either null or empty (i.e., has zero length).

Parameters:

array - the array to check

Returns:

check result

isNullOrEmpty

public static boolean isNullOrEmpty(Collection<?> collection)

Check whether the given collection is either null or empty (i.e., has zero size).

Parameters:

collection - the collection to check

Returns:

check result

nullSafe

public static <T> List<T> nullSafe(T[] array)

Convert the given array into a List containing its items. If the given array is null, an empty List is being returned.

Type Parameters:

T - type of array items

Parameters:

array - the array to convert (may be null

Returns:

list instance

nullSafe

public static <T> List<T> nullSafe(List<T> list)

Ensure the given list into a List containing its items. If the given array is null, an empty List is being returned.

Type Parameters:

T - type of list items

Parameters:

list - the list to convert (may be null

Returns:

non-null list instance

nullSafeEquals

public static boolean nullSafeEquals(Object one,
                                     Object other)

Ensure the two given values are either both null or equal to each other.

Parameters:

one - first value to check

other - second value to check

Returns:

whether the two given values are equal