org.agorava.api.service

Class Preconditions

java.lang.Object

org.agorava.api.service.Preconditions

public class Preconditions
extends Object

Utils for checking preconditions and invariants

Author:

Pablo Fernandez, Antoine Sabot-Durand

Method Summary

Methods

Modifier and Type	Method and Description
static void	checkEmptyString(String string, String errorMsg) Checks that a string is not null or empty
static void	checkNotNull(Object object, String errorMsg) Checks that an object is not null.
static void	checkValidOAuthCallback(String url, String errorMsg) Checks that a URL is a valid OAuth callback
static void	checkValidUrl(String url, String errorMsg) Checks that a URL is valid

Methods inherited from class java.lang.Object

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

Method Detail

checkNotNull

public static void checkNotNull(Object object,
                String errorMsg)

Checks that an object is not null.

Parameters:

object - any object

errorMsg - error message

Throws:

IllegalArgumentException - if the object is null

checkEmptyString

public static void checkEmptyString(String string,
                    String errorMsg)

Checks that a string is not null or empty

Parameters:

string - any string

errorMsg - error message

Throws:

IllegalArgumentException - if the string is null or empty

checkValidUrl

public static void checkValidUrl(String url,
                 String errorMsg)

Checks that a URL is valid

Parameters:

url - any string

errorMsg - error message

checkValidOAuthCallback

public static void checkValidOAuthCallback(String url,
                           String errorMsg)

Checks that a URL is a valid OAuth callback

Parameters:

url - any string

errorMsg - error message