be.fgov.ehealth.etee.crypto.utils
Class Preconditions

java.lang.Object
  be.fgov.ehealth.etee.crypto.utils.Preconditions

public final class Preconditions
extends java.lang.Object

Utility class to check method arguments for various conditions.

Method Summary

static java.util.Collection	checkNotEmpty(java.util.Collection argument, java.lang.String message) Check if the given collection is not null or empty.
static java.lang.Object[]	checkNotEmpty(java.lang.Object[] argument, java.lang.String message) Check if the given array is not null or empty.
static <T> T	checkNotNull(T argument) Check if the given argument is not null.
static <T> T	checkNotNull(T argument, java.lang.String message) Check if the given argument is not null.

Methods inherited from class java.lang.Object

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

Method Detail

checkNotNull

public static <T> T checkNotNull(T argument)

Check if the given argument is not null.

Type Parameters:

T - The type of the argument.

Parameters:

argument - The argument that needs to be checked.

Returns:

The argument, if not null

Throws:

java.lang.IllegalArgumentException - If the given argument is null.

checkNotNull

public static <T> T checkNotNull(T argument,
                                 java.lang.String message)

Check if the given argument is not null.

Type Parameters:

T - The type of the argument.

Parameters:

argument - The argument that needs to be checked.

message - The error message that should be given when the argument is null.

Returns:

The argument, if not null

Throws:

java.lang.IllegalArgumentException - If the given argument is null.

checkNotEmpty

public static java.util.Collection checkNotEmpty(java.util.Collection argument,
                                                 java.lang.String message)

Check if the given collection is not null or empty.

Parameters:

argument - The argument that needs to be checked.

message - The error message that should be given when the argument is null or empty.

Returns:

The argument, if not null

Throws:

java.lang.IllegalArgumentException - If the given argument is null or empty.

checkNotEmpty

public static java.lang.Object[] checkNotEmpty(java.lang.Object[] argument,
                                               java.lang.String message)

Check if the given array is not null or empty.

Parameters:

argument - The argument that needs to be checked.

message - The error message that should be given when the argument is null or empty.

Returns:

The argument, if not null

Throws:

java.lang.IllegalArgumentException - If the given argument is null or empty.