+++ /dev/null
-/*
- * Copyright 2012 Decebal Suiu
- *
- * Licensed 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 ro.fortsoft.pf4j.util;
-
-import java.io.IOException;
-import java.net.URL;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Enumeration;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-
-/**
- * A class loader that has multiple loaders and uses them for loading classes and resources.
- *
- * @author Decebal Suiu
- */
-public class CompoundClassLoader extends ClassLoader {
-
- private Set<ClassLoader> loaders = new HashSet<>();
-
- public void addLoader(ClassLoader loader) {
- loaders.add(loader);
- }
-
- public void removeLoader(ClassLoader loader) {
- loaders.remove(loader);
- }
-
- @Override
- public Class<?> findClass(String name) throws ClassNotFoundException {
- for (ClassLoader loader : loaders) {
- try {
- return loader.loadClass(name);
- } catch (ClassNotFoundException e) {
- // try next
- }
- }
-
- throw new ClassNotFoundException(name);
- }
-
- @Override
- public URL findResource(String name) {
- for (ClassLoader loader : loaders) {
- URL url = loader.getResource(name);
- if (url != null) {
- return url;
- }
- }
-
- return null;
- }
-
- @Override
- protected Enumeration<URL> findResources(String name) throws IOException {
- List<URL> resources = new ArrayList<>();
- for (ClassLoader loader : loaders) {
- resources.addAll(Collections.list(loader.getResources(name)));
- }
-
- return Collections.enumeration(resources);
- }
-
-}