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September 7, 2025 09:32
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| // Copyright (C) 2014 The Android Open Source Project | |
| // | |
| // Licensed 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 com.google.gerrit.sshd.commands; | |
| import static com.google.gerrit.sshd.CommandMetaData.Mode.MASTER_OR_SLAVE; | |
| import com.google.common.base.Strings; | |
| import com.google.gerrit.common.data.GlobalCapability; | |
| import com.google.gerrit.extensions.annotations.RequiresCapability; | |
| import com.google.gerrit.sshd.CommandMetaData; | |
| import com.google.gerrit.sshd.SshCommand; | |
| import java.net.URI; | |
| import java.net.URISyntaxException; | |
| import org.apache.logging.log4j.Level; | |
| import org.apache.logging.log4j.LogManager; | |
| import org.apache.logging.log4j.core.LoggerContext; | |
| import org.apache.logging.log4j.core.config.Configuration; | |
| import org.apache.logging.log4j.core.config.ConfigurationFactory; | |
| import org.apache.logging.log4j.core.config.Configurator; | |
| import org.apache.logging.log4j.core.util.Loader; | |
| import org.kohsuke.args4j.Argument; | |
| @RequiresCapability(GlobalCapability.ADMINISTRATE_SERVER) | |
| @CommandMetaData( | |
| name = "set-level", | |
| description = "Change the level of loggers", | |
| runsAt = MASTER_OR_SLAVE) | |
| public class SetLoggingLevelCommand extends SshCommand { | |
| private static final String LOG_CONFIGURATION = "log4j2.xml"; | |
| private static final String JAVA_OPTIONS_LOG_CONFIG = "log4j2.configurationFile"; | |
| private enum LevelOption { | |
| ALL, | |
| TRACE, | |
| DEBUG, | |
| INFO, | |
| WARN, | |
| ERROR, | |
| FATAL, | |
| OFF, | |
| RESET | |
| } | |
| @Argument(index = 0, required = true, metaVar = "LEVEL", usage = "logging level to set to") | |
| private LevelOption level; | |
| @Argument(index = 1, required = false, metaVar = "NAME", usage = "used to match loggers") | |
| private String name; | |
| @Override | |
| protected void run() throws URISyntaxException { | |
| enableGracefulStop(); | |
| if (level == LevelOption.RESET) { | |
| reset(); | |
| } else { | |
| final Level newLevel; | |
| try { | |
| newLevel = Level.valueOf(level.name()); | |
| } catch (IllegalArgumentException e) { | |
| stderr.println("Unknown logging level: " + level); | |
| return; | |
| } | |
| LoggerContext ctx = (LoggerContext) LogManager.getContext(false); | |
| ctx.getLoggers() | |
| .forEach( | |
| logger -> { | |
| String loggerName = logger.getName(); | |
| if (name == null || loggerName.contains(name)) { | |
| Configurator.setLevel(loggerName, newLevel); | |
| } | |
| }); | |
| } | |
| } | |
| private static void reset() throws URISyntaxException { | |
| LoggerContext context = (LoggerContext) LogManager.getContext(false); | |
| String path = System.getProperty(JAVA_OPTIONS_LOG_CONFIG); | |
| URI configLocation = | |
| Strings.isNullOrEmpty(path) | |
| ? Loader.getResource(LOG_CONFIGURATION, Thread.currentThread().getContextClassLoader()) | |
| .toURI() | |
| : URI.create(path); | |
| Configuration newConfig = | |
| ConfigurationFactory.getInstance().getConfiguration(context, null, configLocation); | |
| context.reconfigure(newConfig); | |
| } | |
| } |
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