| /* |
| * 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.solr.util; |
| |
| import java.lang.annotation.Documented; |
| import java.lang.annotation.ElementType; |
| import java.lang.annotation.Inherited; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.lang.annotation.Target; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.logging.log4j.Level; |
| import org.apache.logging.log4j.core.LoggerContext; |
| import org.apache.logging.log4j.core.config.Configuration; |
| import org.apache.logging.log4j.core.config.LoggerConfig; |
| import org.apache.solr.common.util.SuppressForbidden; |
| |
| /** |
| * Annotation specifying the log level for a particular test case or method |
| * |
| * Log levels are set for different classes by passing a configuration string |
| * to the annotation, like this: |
| * <code> |
| * {@literal @}LogLevel("org.apache.solr=DEBUG;org.apache.solr.core=INFO") |
| * </code> |
| */ |
| @Documented |
| @Inherited |
| @Retention(RetentionPolicy.RUNTIME) |
| @Target({ElementType.TYPE, ElementType.METHOD}) |
| public @interface LogLevel { |
| |
| /** |
| * A log-level definition string |
| */ |
| public String value(); |
| |
| @SuppressForbidden(reason="Specific to Log4J2") |
| public static class Configurer { |
| |
| private static Map<String, Level> parseFrom(String input) { |
| Map<String, Level> testlevels = new HashMap<>(); |
| for (String levelSetting : input.split(";")) { |
| String[] parts = levelSetting.split("="); |
| testlevels.put(parts[0], parseLevel(parts[1])); |
| } |
| return testlevels; |
| } |
| |
| private static Level parseLevel(String level) { |
| return level == null ? null : Level.toLevel(level); |
| } |
| |
| public static void restoreLogLevels(Map<String, Level> savedLogLevels) { |
| setLogLevels(savedLogLevels); |
| } |
| |
| public static Map<String, Level> setLevels(String value) { |
| return setLogLevels(parseFrom(value)); |
| } |
| |
| private static Map<String, Level> setLogLevels(Map<String, Level> logLevels) { |
| final LoggerContext ctx = LoggerContext.getContext(false); |
| final Configuration config = ctx.getConfiguration(); |
| |
| final Map<String, Level> oldLevels = new HashMap<>(); |
| logLevels.forEach((loggerName, newLevel) -> { |
| final LoggerConfig logConfig = config.getLoggerConfig(loggerName); |
| if (loggerName.equals(logConfig.getName())) { |
| // we have an existing LoggerConfig for this specific loggerName |
| // record the existing 'old' level... |
| oldLevels.put(loggerName, logConfig.getLevel()); |
| // ...and set the new one (or remove if null) ... |
| if (null == newLevel) { |
| config.removeLogger(loggerName); |
| } else { |
| logConfig.setLevel(newLevel); |
| } |
| } else { |
| // there is no existing configuration for the exact loggerName, logConfig is some ancestor |
| // record an 'old' level of 'null' to track the lack of any configured level... |
| oldLevels.put(loggerName, null); |
| // ...and now create a new logger config wih our new level |
| final LoggerConfig newLoggerConfig = new LoggerConfig(loggerName, newLevel, true); |
| config.addLogger(loggerName, newLoggerConfig); |
| } |
| |
| assert oldLevels.containsKey(loggerName); |
| }); |
| ctx.updateLoggers(); |
| return oldLevels; |
| } |
| |
| } |
| |
| } |