| 1 | /* |
| 2 | * Copyright (C) 2022, EfficiOS Inc. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along |
| 15 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 17 | */ |
| 18 | |
| 19 | package org.lttng.ust.agent.utils; |
| 20 | |
| 21 | import java.net.URI; |
| 22 | import java.net.URL; |
| 23 | |
| 24 | import org.apache.logging.log4j.LogManager; |
| 25 | import org.apache.logging.log4j.core.LoggerContext; |
| 26 | |
| 27 | /** |
| 28 | * Log4j 2.x test context utilities. |
| 29 | */ |
| 30 | public class Log4j2TestContext { |
| 31 | |
| 32 | private final URI configFileUri; |
| 33 | |
| 34 | private LoggerContext loggerContext; |
| 35 | |
| 36 | /** |
| 37 | * @param configFile path to the log4j configuration file. |
| 38 | */ |
| 39 | public Log4j2TestContext(String configFile) { |
| 40 | |
| 41 | URL resource = getClass().getClassLoader().getResource(configFile); |
| 42 | |
| 43 | if (resource == null) { |
| 44 | throw new IllegalArgumentException("Config file not found: " + configFile); |
| 45 | } |
| 46 | |
| 47 | try { |
| 48 | this.configFileUri = resource.toURI(); |
| 49 | } catch (Exception e) { |
| 50 | throw new IllegalArgumentException("Config file invalid URI: " + resource); |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | /** |
| 55 | * @return the log4j2 logger context. |
| 56 | */ |
| 57 | public synchronized LoggerContext getLoggerContext() { |
| 58 | return loggerContext; |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Initialize the log4j2 context before running a test. |
| 63 | */ |
| 64 | public synchronized void beforeTest() { |
| 65 | loggerContext = (LoggerContext) LogManager.getContext( |
| 66 | ClassLoader.getSystemClassLoader(), false, configFileUri); |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Dispose of the log4j2 context after running a test. |
| 71 | */ |
| 72 | public synchronized void afterTest() { |
| 73 | loggerContext.stop(); |
| 74 | } |
| 75 | } |