org.jboss.shrinkwrap.resolver.impl.maven.util

Class Validate

java.lang.Object

org.jboss.shrinkwrap.resolver.impl.maven.util.Validate

public final class Validate
extends Object

Validate Validation utility

Author:

Aslak Knutsen, Karel Piwko

Method Summary

Modifier and Type	Method and Description
static boolean	isNullOrEmpty(String string) Checks that the specified String is not null or empty.
static boolean	isNullOrEmptyOrQuestionMark(String string) Checks that the specified String is not null or empty or question mark "?".
static boolean	isReadable(File path)
static void	isReadable(File file, String message) Checks that the specified File is not null, exists and represents a readable file, throws exception if it is empty or null and does not represent a path to a file.
static void	isReadable(String path, String message) Checks that the specified String is not null or empty and represents a readable file, throws exception if it is empty or null and does not represent a path to a file.
static void	notEmpty(Collection<?> collection, String message) Checks that collection is not null or empty, throws exception if it is.
static void	notNull(Object obj, String message) Checks that object is not null, throws exception if it is.
static void	notNullAndNoNullValues(Object[] objects, String message) Checks that the specified array is not null or contain any null values.
static void	notNullOrEmpty(String string, String message) Checks that the specified String is not null or empty, throws exception if it is.
static void	readable(File path, String message) Checks that the specified String is not null or empty and represents a readable file, throws exception if it is empty or null and does not represent a path to a file.
static void	readable(String path, String message) Checks that the specified String is not null or empty and represents a readable file, throws exception if it is empty or null and does not represent a path to a file.
static void	stateNotNull(Object obj, String message) Checks that object is not null, throws exception if it is.
static void	writeableDirectory(String path, String message) Checks that the specified String is not null or empty and represents a writeable directory, throws exception if it is empty or null and does not represent a path to a directory.

Methods inherited from class java.lang.Object

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

Method Detail

notNull

public static void notNull(Object obj,
                           String message)
                    throws IllegalArgumentException

Checks that object is not null, throws exception if it is.

Parameters:

obj - The object to check

message - The exception message

Throws:

IllegalArgumentException - Thrown if obj is null

stateNotNull

public static void stateNotNull(Object obj,
                                String message)
                         throws IllegalStateException

Checks that object is not null, throws exception if it is.

Parameters:

obj - The object to check

message - The exception message

Throws:

IllegalStateException - Thrown if obj is null

notEmpty

public static void notEmpty(Collection<?> collection,
                            String message)
                     throws IllegalArgumentException

Checks that collection is not null or empty, throws exception if it is.

Parameters:

collection - The collection to be checked

message - The exception message

Throws:

IllegalArgumentException - Thrown if collection is null or empty

isNullOrEmpty

public static boolean isNullOrEmpty(String string)

Checks that the specified String is not null or empty.

Parameters:

string - The object to check

Returns:

true if specified String is null or empty, false otherwise

isNullOrEmptyOrQuestionMark

public static boolean isNullOrEmptyOrQuestionMark(String string)

Checks that the specified String is not null or empty or question mark "?".

Parameters:

string - The object to check

Returns:

true if specified String is null or empty, false otherwise

notNullOrEmpty

public static void notNullOrEmpty(String string,
                                  String message)
                           throws IllegalArgumentException

Checks that the specified String is not null or empty, throws exception if it is.

Parameters:

string - The object to check

message - The exception message

Throws:

IllegalArgumentException - Thrown if string is null

readable

public static void readable(String path,
                            String message)
                     throws IllegalArgumentException

Checks that the specified String is not null or empty and represents a readable file, throws exception if it is empty or null and does not represent a path to a file.

Parameters:

path - The path to check

message - The exception message

Throws:

IllegalArgumentException - Thrown if path is empty, null or invalid

readable

public static void readable(File path,
                            String message)
                     throws IllegalArgumentException

Checks that the specified String is not null or empty and represents a readable file, throws exception if it is empty or null and does not represent a path to a file.

Parameters:

path - The path to check

message - The exception message

Throws:

IllegalArgumentException - Thrown if path is empty, null or invalid

isReadable

public static boolean isReadable(File path)

writeableDirectory

public static void writeableDirectory(String path,
                                      String message)
                               throws IllegalArgumentException

Checks that the specified String is not null or empty and represents a writeable directory, throws exception if it is empty or null and does not represent a path to a directory.

Parameters:

path - The path to check

message - The exception message

Throws:

IllegalArgumentException - Thrown if path is empty, null or invalid

notNullAndNoNullValues

public static void notNullAndNoNullValues(Object[] objects,
                                          String message)

Checks that the specified array is not null or contain any null values.

Parameters:

objects - The object to check

message - The exception message

isReadable

public static void isReadable(File file,
                              String message)
                       throws IllegalArgumentException

Checks that the specified File is not null, exists and represents a readable file, throws exception if it is empty or null and does not represent a path to a file.

Parameters:

file - The File to check

message - The exception message

Throws:

IllegalArgumentException - Thrown if path is empty, null or invalid

isReadable

public static void isReadable(String path,
                              String message)
                       throws IllegalArgumentException

Checks that the specified String is not null or empty and represents a readable file, throws exception if it is empty or null and does not represent a path to a file.

Parameters:

path - The path to check

message - The exception message

Throws:

IllegalArgumentException - Thrown if path is empty, null or invalid