io.ultreia.java4all.util

Class ServiceLoaders

java.lang.Object

io.ultreia.java4all.util.ServiceLoaders

public class ServiceLoaders
extends Object

Created by tchemit on 30/05/2018.

Author:

Tony Chemit - dev@tchemit.fr

Constructor Summary

Constructors

Constructor and Description
ServiceLoaders()

Method Summary

Modifier and Type	Method and Description
static <O> List<Class<O>>	loadTypes(Class<O> serviceType) Load of classes of the given serviceType using ServiceLoader mecanism, but without loading any of those services.
static <S> S	loadUniqueService(Class<S> serviceType) Load the unique implementation of the given serviceType.

Methods inherited from class java.lang.Object

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

Constructor Detail

ServiceLoaders

public ServiceLoaders()

Method Detail

loadUniqueService

public static <S> S loadUniqueService(Class<S> serviceType)

Load the unique implementation of the given serviceType.

Type Parameters:

S - generic type of service to load

Parameters:

serviceType - type of service to load

Returns:

the unique service found

Throws:

IllegalStateException - if could not find the servcie, or if there is more than one implementations found.

loadTypes

public static <O> List<Class<O>> loadTypes(Class<O> serviceType)

Load of classes of the given serviceType using ServiceLoader mecanism, but without loading any of those services.

Type Parameters:

O - type of service to seek

Parameters:

serviceType - type of service to seek

Returns:

list of all implementation found via ServiceLoader mechanism for given type