| /** |
| * 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.atlas.plugin.classloader; |
| |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| |
| public class AtlasPluginClassLoaderTest { |
| |
| @Test |
| public void testClassLoader() throws Exception { |
| String cls = "org.apache.atlas.service.Services"; |
| |
| try { |
| loadClass(cls, null); |
| Assert.fail("Expected ClassNotFoundException"); |
| } catch (ClassNotFoundException e) { |
| //expected |
| } |
| |
| AtlasPluginClassLoader classLoader = new AtlasPluginClassLoader("../common/target"); |
| |
| classLoader.activate(); |
| |
| //org.apache.atlas.service.Services class should be loadable now |
| //should also load org.apache.atlas.service.Service |
| Class<?> servicesCls = loadClass(cls, null); |
| loadClass("org.apache.atlas.service.Service", servicesCls.getClassLoader()); |
| |
| //Fall back to current class loader should also work |
| loadClass(AtlasPluginClassLoaderUtil.class.getName(), null); |
| |
| classLoader.deactivate(); |
| |
| //After disable, class loading should fail again |
| try { |
| loadClass(cls, null); |
| Assert.fail("Expected ClassNotFoundException"); |
| } catch (ClassNotFoundException e) { |
| //expected |
| } |
| } |
| |
| private Class<?> loadClass(String cls, ClassLoader classLoader) throws ClassNotFoundException { |
| if (classLoader == null) { |
| classLoader = Thread.currentThread().getContextClassLoader(); |
| } |
| return Class.forName(cls, true, classLoader); |
| } |
| } |