| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.pdfbox.jbig2.util; |
| |
| import java.util.Iterator; |
| import java.util.ServiceLoader; |
| |
| public class ServiceLookup<B> { |
| |
| public Iterator<B> getServices(Class<B> cls) { |
| return getServices(cls, null); |
| } |
| |
| public Iterator<B> getServices(Class<B> cls, ClassLoader clsLoader) { |
| Iterator<B> services = ServiceLoader.load(cls).iterator(); |
| |
| if (!services.hasNext()) { |
| services = ServiceLoader.load(cls, cls.getClass().getClassLoader()).iterator(); |
| } |
| |
| if (!services.hasNext() && clsLoader != null) { |
| services = ServiceLoader.load(cls, clsLoader).iterator(); |
| } |
| |
| return services; |
| } |
| |
| } |