de.carne.util.validation

Class InputValidator

java.lang.Object

de.carne.util.validation.InputValidator

public final class InputValidator
extends java.lang.Object

This class provides validation function for all kind of general input.

Method Summary

Modifier and Type	Method and Description
static void	isTrue(boolean condition, MessageFormatter message) Make sure a condition is met.
static java.lang.String[]	matches(java.lang.String input, java.util.regex.Pattern pattern, MessageFormatter message) Make sure input matches a given Pattern.
static java.lang.String	notEmpty(java.lang.String input, MessageFormatter message) Make sure input is not an empty String.
static <T> T	notNull(T input, MessageFormatter message) Make sure input is not null.

Methods inherited from class java.lang.Object

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

Method Detail

isTrue

public static void isTrue(boolean condition,
                          MessageFormatter message)
                   throws ValidationException

Make sure a condition is met.

Parameters:

condition - The condition to check.

message - The exception message to use if the condition is false.

Throws:

ValidationException - if the condition is false.

notNull

public static <T> T notNull(@Nullable
                            T input,
                            MessageFormatter message)
                     throws ValidationException

Make sure input is not null.

Type Parameters:

T - The object type to check.

Parameters:

input - The input to validate.

message - The exception message to use if the input is invalid.

Returns:

The validated Path object.

Throws:

ValidationException - if the input is invalid.

notEmpty

public static java.lang.String notEmpty(@Nullable
                                        java.lang.String input,
                                        MessageFormatter message)
                                 throws ValidationException

Make sure input is not an empty String.

Parameters:

input - The input to validate.

message - The exception message to use if the input is invalid.

Returns:

The validated Path object.

Throws:

ValidationException - if the input is invalid.

matches

public static java.lang.String[] matches(java.lang.String input,
                                         java.util.regex.Pattern pattern,
                                         MessageFormatter message)
                                  throws ValidationException

Make sure input matches a given Pattern.

Parameters:

input - The input to invalidated.

pattern - The pattern to check the input against.

message - The exception message to use if the input is invalid.

Returns:

The pattern's capturing groups.

Throws:

ValidationException - if the input is invalid.