| /* |
| * 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.jackson.json.layout; |
| |
| import static org.hamcrest.CoreMatchers.*; |
| import static org.junit.Assert.assertThat; |
| |
| import java.io.File; |
| import java.nio.charset.Charset; |
| import java.nio.file.Files; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.logging.log4j.Logger; |
| import org.apache.logging.log4j.core.test.junit.LoggerContextRule; |
| import org.junit.AfterClass; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| |
| /** |
| * Test for LOG4J2-1769. |
| * |
| * @since 2.8 |
| */ |
| public class ConcurrentLoggingWithJsonLayoutTest { |
| |
| private class LoggingThread extends Thread { |
| private final Set<Thread> threads; |
| private final Logger log; |
| |
| LoggingThread(final Set<Thread> threads, final Logger log) { |
| this.threads = threads; |
| this.log = log; |
| } |
| |
| @Override |
| public void run() { |
| log.info(threads.size()); |
| try { |
| for (int i = 0; i < 64; i++) { |
| log.info("First message."); |
| log.info("Second message."); |
| } |
| } finally { |
| threads.remove(this); |
| } |
| } |
| } |
| @ClassRule |
| public static LoggerContextRule context = new LoggerContextRule("log4j2-json-layout.xml"); |
| |
| private static final String PATH = "target/test-json-layout.log"; |
| |
| @AfterClass |
| public static void after() { |
| new File(PATH).delete(); |
| } |
| |
| @Test |
| public void testConcurrentLogging() throws Throwable { |
| final Logger log = context.getLogger(ConcurrentLoggingWithJsonLayoutTest.class); |
| final Set<Thread> threads = Collections.synchronizedSet(new HashSet<Thread>()); |
| final List<Throwable> thrown = Collections.synchronizedList(new ArrayList<Throwable>()); |
| |
| for (int x = 0; x < Runtime.getRuntime().availableProcessors() * 2; x++) { |
| final Thread t = new LoggingThread(threads, log); |
| threads.add(t); |
| |
| // Appender is configured with ignoreExceptions="false"; |
| // any exceptions are propagated to the caller, so we can catch them here. |
| t.setUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() { |
| @Override |
| public void uncaughtException(final Thread t, final Throwable e) { |
| thrown.add(e); |
| } |
| }); |
| t.start(); |
| } |
| |
| while (!threads.isEmpty()) { |
| log.info("not done going to sleep..."); |
| Thread.sleep(10); |
| } |
| |
| // if any error occurred, fail this test |
| assertThat(thrown, equalTo(Collections.emptyList())); |
| |
| // simple test to ensure content is not corrupted |
| final List<String> lines = Files.readAllLines(new File(PATH).toPath(), Charset.defaultCharset()); |
| for (final String line : lines) { |
| assertThat(line, startsWith("{\"instant\":{\"epochSecond\":")); |
| assertThat(line, containsString("\"threadPriority\":5")); |
| } |
| } |
| } |