Package org.gcube.common.events.impl

Class Utils

java.lang.Object

org.gcube.common.events.impl.Utils

public class Utils
extends Object

Library-wide utilities.

Author:

Fabio Simeoni, Luca Frosini (ISTI-CNR)

Method Summary

Modifier and Type	Method	Description
static void	notEmpty(String name, String o)	Validates that a string is not empty.
static void	notNull(Object o)	Validates that an object is not null.
static void	notNull(String name, Object o)	Validates that an object is not null.
static void	valid(String name, String o)	Validates that a string is not null and not empty.
static void	valid(String name, String[] o)	Validates that a string array is not null and all its elements are not null and not empty.
static void	valid(String name, Collection<String> o)	Validates that a collection is not null and all its elements are not null and not empty.

Methods inherited from class java.lang.Object

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

Method Details

notNull

public static void notNull(Object o)
                    throws IllegalArgumentException

Validates that an object is not null.

Parameters:

o - the object to validate

Throws:

IllegalArgumentException - if the object is null

notNull

public static void notNull(String name,
 Object o)
                    throws IllegalArgumentException

Validates that an object is not null.

Parameters:

name - the name of the parameter for error messages

o - the object to validate

Throws:

IllegalArgumentException - if the object is null

notEmpty

public static void notEmpty(String name,
 String o)
                     throws IllegalArgumentException

Validates that a string is not empty.

Parameters:

name - the name of the parameter for error messages

o - the string to validate

Throws:

IllegalArgumentException - if the string is empty

valid

public static void valid(String name,
 String o)
                  throws IllegalArgumentException

Validates that a string is not null and not empty.

Parameters:

name - the name of the parameter for error messages

o - the string to validate

Throws:

IllegalArgumentException - if the string is null or empty

valid

public static void valid(String name,
 Collection<String> o)
                  throws IllegalArgumentException

Validates that a collection is not null and all its elements are not null and not empty.

Parameters:

name - the name of the parameter for error messages

o - the collection to validate

Throws:

IllegalArgumentException - if the collection is null or contains null/empty elements

valid

public static void valid(String name,
 String[] o)
                  throws IllegalArgumentException

Validates that a string array is not null and all its elements are not null and not empty.

Parameters:

name - the name of the parameter for error messages

o - the array to validate

Throws:

IllegalArgumentException - if the array is null or contains null/empty elements