001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache license, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the license for the specific language governing permissions and 015 * limitations under the license. 016 */ 017 018 package org.apache.logging.log4j.perf.jmh; 019 020 import java.io.ByteArrayInputStream; 021 import java.io.IOException; 022 import java.util.concurrent.TimeUnit; 023 024 import org.apache.logging.log4j.core.LoggerContext; 025 import org.apache.logging.log4j.core.config.ConfigurationSource; 026 import org.apache.logging.log4j.core.config.Configurator; 027 import org.openjdk.jmh.annotations.BenchmarkMode; 028 import org.openjdk.jmh.annotations.GenerateMicroBenchmark; 029 import org.openjdk.jmh.annotations.Mode; 030 import org.openjdk.jmh.annotations.OutputTimeUnit; 031 import org.openjdk.jmh.annotations.Scope; 032 import org.openjdk.jmh.annotations.Setup; 033 import org.openjdk.jmh.annotations.State; 034 035 /** 036 * This benchmark demonstrates how long it takes for a simple XML configuration file to be parsed and initialize a 037 * new {@link org.apache.logging.log4j.core.LoggerContext} using that configuration. 038 */ 039 // TO RUN THIS TEST: 040 // java -jar target/microbenchmarks.jar '.*ConfiguratorInitializeBenchmark.*' 041 @State(Scope.Thread) 042 public class ConfiguratorInitializeBenchmark { 043 044 private static final String inlineConfigurationXML = 045 "<Configuration name='ConfiguratorInitializeTest' status='off'>" + 046 "<Appenders>" + 047 "<Console name='STDOUT'>" + 048 "<PatternLayout pattern='%m%n'/>" + 049 "</Console>" + 050 "</Appenders>" + 051 "<Loggers>" + 052 "<Root level='error'>" + 053 "<AppenderRef ref='STDOUT'/>" + 054 "</Root>" + 055 "</Loggers>" + 056 "</Configuration>"; 057 058 private ConfigurationSource configurationSource; 059 060 @Setup 061 public void setUp() throws IOException { 062 configurationSource = new ConfigurationSource(new ByteArrayInputStream(inlineConfigurationXML.getBytes())); 063 } 064 065 @GenerateMicroBenchmark 066 @BenchmarkMode(Mode.SingleShotTime) 067 @OutputTimeUnit(TimeUnit.MILLISECONDS) 068 public LoggerContext initializeLoggerContext() { 069 return Configurator.initialize(null, configurationSource); 070 } 071 072 }