de.carne.nio.compression.util

Class Assert

java.lang.Object

de.carne.nio.compression.util.Assert

public final class Assert
extends java.lang.Object

Utility class used for argument and state validation.

Constructor Summary

Constructors

Constructor and Description
Assert()

Method Summary

Modifier and Type	Method and Description
static void	inState(boolean state, java.lang.String name, int value) Check whether we are in an expected state.
static void	inState(boolean state, java.lang.String name1, int value1, java.lang.String name2, int value2) Check whether we are in an expected state.
static void	isValid(boolean valid, java.lang.String name, int value) Check whether an argument assumption is valid.
static void	isValid(boolean valid, java.lang.String name, long value) Check whether an argument assumption is valid.
static void	notEmpty(int length, java.lang.String name) Check whether an array argument is not empty.
static void	notNull(java.lang.Object object, java.lang.String name) Check whether an argument is not null.

Methods inherited from class java.lang.Object

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

Constructor Detail

Assert

public Assert()

Method Detail

notNull

public static void notNull(java.lang.Object object,
                           java.lang.String name)
                    throws java.lang.NullPointerException

Check whether an argument is not null.

Parameters:

object - The argument to check.

name - The argument's name.

Throws:

java.lang.NullPointerException - if the argument is null.

notEmpty

public static void notEmpty(int length,
                            java.lang.String name)
                     throws java.lang.IllegalArgumentException

Check whether an array argument is not empty.

Parameters:

length - The array length to check.

name - The argument's name.

Throws:

java.lang.IllegalArgumentException - if the array is empty.

isValid

public static void isValid(boolean valid,
                           java.lang.String name,
                           int value)
                    throws java.lang.IllegalArgumentException

Check whether an argument assumption is valid.

Parameters:

valid - The assumption result to check.

name - The argument's name name.

value - The argument's value.

Throws:

java.lang.IllegalArgumentException - if the assumption is not valid.

isValid

public static void isValid(boolean valid,
                           java.lang.String name,
                           long value)
                    throws java.lang.IllegalArgumentException

Check whether an argument assumption is valid.

Parameters:

valid - The assumption result to check.

name - The argument's name name.

value - The argument's value.

Throws:

java.lang.IllegalArgumentException - if the assumption is not valid.

inState

public static void inState(boolean state,
                           java.lang.String name,
                           int value)
                    throws java.lang.IllegalStateException

Check whether we are in an expected state.

Parameters:

state - The state to check.

name - The state variable's name.

value - The state variable's value.

Throws:

java.lang.IllegalStateException - if we are not in an expected state.

inState

public static void inState(boolean state,
                           java.lang.String name1,
                           int value1,
                           java.lang.String name2,
                           int value2)
                    throws java.lang.IllegalStateException

Check whether we are in an expected state.

Parameters:

state - The state to check.

name1 - The 1st state variable's name.

value1 - The 1st state variable's value.

name2 - The 2nd state variable's name.

value2 - The 2nd state variable's value.

Throws:

java.lang.IllegalStateException - if we are not in an expected state.