Package io.lettuce.core.internal

Class LettuceAssert

java.lang.Object

io.lettuce.core.internal.LettuceAssert

public class LettuceAssert
extends Object

Assertion utility class that assists in validating arguments. This class is part of the internal API and may change without further notice.

Author:

Mark Paluch

Method Summary

Modifier and Type	Method	Description
static void	assertState(boolean condition, String message)	Ensures the truth of an expression involving the state of the calling instance, but not involving any parameters to the calling method.
static void	assertState(boolean condition, Supplier<String> messageSupplier)	Ensures the truth of an expression involving the state of the calling instance, but not involving any parameters to the calling method.
static void	isTrue(boolean value, String message)	Assert that value is true.
static void	isTrue(boolean value, Supplier<String> messageSupplier)	Assert that value is true.
static void	noNullElements(Object[] array, String message)	Assert that an array has no null elements.
static void	noNullElements(Object[] array, Supplier<String> messageSupplier)	Assert that an array has no null elements.
static void	noNullElements(Collection<?> c, String message)	Assert that a Collection has no null elements.
static void	noNullElements(Collection<?> c, Supplier<String> messageSupplier)	Assert that a Collection has no null elements.
static void	notEmpty(int[] array, String message)	Assert that an array has elements; that is, it must not be null and must have at least one element.
static void	notEmpty(CharSequence string, String message)	Assert that a string is not empty, it must not be null and it must not be empty.
static void	notEmpty(CharSequence string, Supplier<String> messageSupplier)	Assert that a string is not empty, it must not be null and it must not be empty.
static void	notEmpty(Object[] array, String message)	Assert that an array has elements; that is, it must not be null and must have at least one element.
static void	notEmpty(Object[] array, Supplier<String> messageSupplier)	Assert that an array has elements; that is, it must not be null and must have at least one element.
static void	notNull(Object object, String message)	Assert that an object is not null .
static void	notNull(Object object, Supplier<String> messageSupplier)	Assert that an object is not null .

Methods inherited from class java.lang.Object

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

Method Detail

notEmpty

public static void notEmpty(CharSequence string,
                            String message)

Assert that a string is not empty, it must not be null and it must not be empty.

Parameters:

string - the object to check

message - the exception message to use if the assertion fails

Throws:

IllegalArgumentException - if the object is null or the underlying string is empty

notEmpty

public static void notEmpty(CharSequence string,
                            Supplier<String> messageSupplier)

Assert that a string is not empty, it must not be null and it must not be empty.

Parameters:

string - the object to check

messageSupplier - the exception message supplier to use if the assertion fails

Throws:

IllegalArgumentException - if the object is null or the underlying string is empty

Since:

5.2.0

notNull

public static void notNull(Object object,
                           String message)

Assert that an object is not null .

Parameters:

object - the object to check

message - the exception message to use if the assertion fails

Throws:

IllegalArgumentException - if the object is null

notNull

public static void notNull(Object object,
                           Supplier<String> messageSupplier)

Assert that an object is not null .

Parameters:

object - the object to check

messageSupplier - the exception message supplier to use if the assertion fails

Throws:

IllegalArgumentException - if the object is null

Since:

5.2.0

notEmpty

public static void notEmpty(Object[] array,
                            String message)

Assert that an array has elements; that is, it must not be null and must have at least one element.

Parameters:

array - the array to check

message - the exception message to use if the assertion fails

Throws:

IllegalArgumentException - if the object array is null or has no elements

notEmpty

public static void notEmpty(Object[] array,
                            Supplier<String> messageSupplier)

Assert that an array has elements; that is, it must not be null and must have at least one element.

Parameters:

array - the array to check

messageSupplier - the exception message supplier to use if the assertion fails

Throws:

IllegalArgumentException - if the object array is null or has no elements

Since:

5.2.0

notEmpty

public static void notEmpty(int[] array,
                            String message)

Assert that an array has elements; that is, it must not be null and must have at least one element.

Parameters:

array - the array to check

message - the exception message to use if the assertion fails

Throws:

IllegalArgumentException - if the object array is null or has no elements

noNullElements

public static void noNullElements(Object[] array,
                                  String message)

Assert that an array has no null elements.

Parameters:

array - the array to check

message - the exception message to use if the assertion fails

Throws:

IllegalArgumentException - if the object array contains a null element

noNullElements

public static void noNullElements(Object[] array,
                                  Supplier<String> messageSupplier)

Assert that an array has no null elements.

Parameters:

array - the array to check

messageSupplier - the exception message supplier to use if the assertion fails

Throws:

IllegalArgumentException - if the object array contains a null element

Since:

5.2.0

noNullElements

public static void noNullElements(Collection<?> c,
                                  String message)

Assert that a Collection has no null elements.

Parameters:

c - the collection to check

message - the exception message to use if the assertion fails

Throws:

IllegalArgumentException - if the Collection contains a null element

noNullElements

public static void noNullElements(Collection<?> c,
                                  Supplier<String> messageSupplier)

Assert that a Collection has no null elements.

Parameters:

c - the collection to check

messageSupplier - the exception message supplier to use if the assertion fails

Throws:

IllegalArgumentException - if the Collection contains a null element

Since:

5.2.0

isTrue

public static void isTrue(boolean value,
                          String message)

Assert that value is true.

Parameters:

value - the value to check

message - the exception message to use if the assertion fails

Throws:

IllegalArgumentException - if the object array contains a null element

isTrue

public static void isTrue(boolean value,
                          Supplier<String> messageSupplier)

Assert that value is true.

Parameters:

value - the value to check

messageSupplier - the exception message supplier to use if the assertion fails

Throws:

IllegalArgumentException - if the object array contains a null element

Since:

5.2.0

assertState

public static void assertState(boolean condition,
                               String message)

Ensures the truth of an expression involving the state of the calling instance, but not involving any parameters to the calling method.

Parameters:

condition - a boolean expression

message - the exception message to use if the assertion fails

Throws:

IllegalStateException - if expression is false

assertState

public static void assertState(boolean condition,
                               Supplier<String> messageSupplier)

Ensures the truth of an expression involving the state of the calling instance, but not involving any parameters to the calling method.

Parameters:

condition - a boolean expression

messageSupplier - the exception message supplier to use if the assertion fails

Throws:

IllegalStateException - if expression is false

Since:

5.2.0