| /* |
| * 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.spi; |
| |
| import org.apache.logging.log4j.simple.SimpleLoggerContext; |
| import org.junit.Test; |
| |
| import java.util.Map; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.logging.Logger; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertSame; |
| |
| /** |
| * Created by Pavel.Sivolobtchik@uxpsystems.com on 2016-10-19. |
| */ |
| public class LoggerAdapterTest { |
| |
| private class RunnableThreadTest implements Runnable { |
| private final AbstractLoggerAdapter<Logger> adapter; |
| private final LoggerContext context; |
| private final CountDownLatch doneSignal; |
| private final int index; |
| private Map<String, Logger> resultMap; |
| |
| private final CountDownLatch startSignal; |
| |
| public RunnableThreadTest(final int index, final TestLoggerAdapter adapter, final LoggerContext context, |
| final CountDownLatch startSignal, final CountDownLatch doneSignal) { |
| this.adapter = adapter; |
| this.context = context; |
| this.startSignal = startSignal; |
| this.doneSignal = doneSignal; |
| this.index = index; |
| } |
| |
| public Map<String, Logger> getResultMap() { |
| return resultMap; |
| } |
| |
| @Override |
| public void run() { |
| try { |
| startSignal.await(); |
| resultMap = adapter.getLoggersInContext(context); |
| resultMap.put(String.valueOf(index), new TestLogger()); |
| doneSignal.countDown(); |
| } |
| catch (final Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| } |
| |
| private static class TestLogger extends Logger { |
| public TestLogger() { |
| super("test", null); |
| } |
| } |
| |
| private static class TestLoggerAdapter extends AbstractLoggerAdapter<Logger> { |
| |
| @Override |
| protected LoggerContext getContext() { |
| return null; |
| } |
| |
| @Override |
| protected Logger newLogger(final String name, final LoggerContext context) { |
| return null; |
| } |
| } |
| |
| /** |
| * Testing synchronization in the getLoggersInContext() method |
| */ |
| @Test |
| public synchronized void testGetLoggersInContextSynch() throws Exception { |
| final TestLoggerAdapter adapter = new TestLoggerAdapter(); |
| |
| final int num = 500; |
| |
| final CountDownLatch startSignal = new CountDownLatch(1); |
| final CountDownLatch doneSignal = new CountDownLatch(num); |
| |
| final RunnableThreadTest[] instances = new RunnableThreadTest[num]; |
| LoggerContext lastUsedContext = null; |
| for (int i = 0; i < num; i++) { |
| if (i % 2 == 0) { |
| //every other time create a new context |
| lastUsedContext = new SimpleLoggerContext(); |
| } |
| final RunnableThreadTest runnable = new RunnableThreadTest(i, adapter, lastUsedContext, startSignal, doneSignal); |
| final Thread thread = new Thread(runnable); |
| thread.start(); |
| instances[i] = runnable; |
| } |
| |
| startSignal.countDown(); |
| doneSignal.await(); |
| |
| for (int i = 0; i < num; i = i + 2) { |
| //maps for the same context should be the same instance |
| final Map<String, Logger> resultMap1 = instances[i].getResultMap(); |
| final Map<String, Logger> resultMap2 = instances[i + 1].getResultMap(); |
| assertSame("not the same map for instances" + i + " and " + (i + 1) + ":", resultMap1, resultMap2); |
| assertEquals(2, resultMap1.size()); |
| } |
| } |
| } |