| /* |
| * 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.logging.log4j.core.util; |
| |
| import java.util.Collection; |
| import java.util.concurrent.ConcurrentLinkedQueue; |
| |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.logging.log4j.core.LoggerContext; |
| import org.apache.logging.log4j.core.impl.Log4jContextFactory; |
| import org.apache.logging.log4j.core.selector.ContextSelector; |
| import org.apache.logging.log4j.junit.LoggerContextRule; |
| import org.apache.logging.log4j.status.StatusLogger; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.Rule; |
| import org.junit.Test; |
| |
| import static org.hamcrest.Matchers.hasItem; |
| import static org.hamcrest.Matchers.hasSize; |
| import static org.hamcrest.Matchers.not; |
| import static org.junit.Assert.*; |
| |
| public class ShutdownCallbackRegistryTest { |
| |
| @Rule |
| public final LoggerContextRule ctx = new LoggerContextRule("ShutdownCallbackRegistryTest.xml"); |
| |
| @BeforeClass |
| public static void setUpClass() throws Exception { |
| System.setProperty("log4j2.is.webapp", "false"); |
| System.setProperty(ShutdownCallbackRegistry.SHUTDOWN_CALLBACK_REGISTRY, Registry.class.getName()); |
| } |
| |
| @AfterClass |
| public static void afterClass() { |
| System.clearProperty(ShutdownCallbackRegistry.SHUTDOWN_CALLBACK_REGISTRY); |
| System.clearProperty("log4j2.is.webapp"); |
| } |
| |
| @Test |
| public void testShutdownCallbackRegistry() throws Exception { |
| final LoggerContext context = ctx.getLoggerContext(); |
| assertTrue("LoggerContext should be started", context.isStarted()); |
| assertThat(Registry.CALLBACKS, hasSize(1)); |
| Registry.shutdown(); |
| assertTrue("LoggerContext should be stopped", context.isStopped()); |
| assertThat(Registry.CALLBACKS, hasSize(0)); |
| final ContextSelector selector = ((Log4jContextFactory) LogManager.getFactory()).getSelector(); |
| assertThat(selector.getLoggerContexts(), not(hasItem(context))); |
| } |
| |
| public static class Registry implements ShutdownCallbackRegistry { |
| private static final Logger LOGGER = StatusLogger.getLogger(); |
| private static final Collection<Cancellable> CALLBACKS = new ConcurrentLinkedQueue<>(); |
| |
| @Override |
| public Cancellable addShutdownCallback(final Runnable callback) { |
| final Cancellable cancellable = new Cancellable() { |
| @Override |
| public void cancel() { |
| LOGGER.debug("Cancelled shutdown callback: {}", callback); |
| CALLBACKS.remove(this); |
| } |
| |
| @Override |
| public void run() { |
| LOGGER.debug("Called shutdown callback: {}", callback); |
| callback.run(); |
| } |
| }; |
| CALLBACKS.add(cancellable); |
| return cancellable; |
| } |
| |
| private static void shutdown() { |
| for (final Runnable callback : CALLBACKS) { |
| LOGGER.debug("Calling shutdown callback: {}", callback); |
| callback.run(); |
| } |
| CALLBACKS.clear(); |
| } |
| } |
| |
| } |