Java tutorial
/* * Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com * The software in this package is published under the terms of the CPAL v1.0 * license, a copy of which has been included with this distribution in the * LICENSE.txt file. */ package org.mule.registry; import org.mule.api.registry.ServiceRegistry; import com.google.common.collect.ImmutableList; import java.util.Collection; import java.util.ServiceLoader; /** * Implementation of {@link ServiceRegistry} * that uses standard {@link java.util.ServiceLoader} to get * the providers * * @since 3.7.0 */ public class SpiServiceRegistry implements ServiceRegistry { /** * If {@code classLoader} is {@code null}, then the current {@link Thread#getContextClassLoader()} * will be used * {@inheritDoc} */ @Override public <T> Collection<T> lookupProviders(Class<T> providerClass, ClassLoader classLoader) { if (classLoader == null) { classLoader = Thread.currentThread().getContextClassLoader(); } return ImmutableList.copyOf(ServiceLoader.load(providerClass, classLoader).iterator()); } /** * {@inheritDoc} */ @Override public <T> Collection<T> lookupProviders(Class<T> providerClass) { return ImmutableList.copyOf(ServiceLoader.load(providerClass).iterator()); } }