lttng-ust-java-tests-log4j/src/test/java/org/lttng/ust/agent/integration/events/Log4jListEventsIT.java

   1 /*
   2  * Copyright (C) 2015, EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
   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.integration.events;
  20
  21 import java.io.IOException;
  22
  23 import org.apache.log4j.Appender;
  24 import org.apache.log4j.LogManager;
  25 import org.apache.log4j.Logger;
  26 import org.junit.jupiter.api.AfterAll;
  27 import org.junit.jupiter.api.AfterEach;
  28 import org.junit.jupiter.api.BeforeAll;
  29 import org.junit.jupiter.api.BeforeEach;
  30 import org.lttng.tools.ILttngSession;
  31 import org.lttng.ust.agent.log4j.LttngLogAppender;
  32 import org.lttng.ust.agent.utils.Log4jTestUtils;
  33
  34 /**
  35  * Test suite for the list events command for the log4j domain
  36  */
  37 public class Log4jListEventsIT extends ListEventsITBase {
  38
  39     private Logger[] loggers;
  40     private Appender[] appenders;
  41
  42     /**
  43      * Class setup
  44      */
  45     @BeforeAll
  46     public static void log4jClassSetup() {
  47         Log4jTestUtils.testClassSetup();
  48     }
  49
  50     /**
  51      * Class cleanup
  52      */
  53     @AfterAll
  54     public static void log4jClassCleanup() {
  55         Log4jTestUtils.testClassCleanup();
  56     }
  57
  58     /**
  59      * Test setup
  60      *
  61      * @throws SecurityException
  62      * @throws IOException
  63      */
  64     @BeforeEach
  65     public void log4jSetup() throws SecurityException, IOException {
  66         /* Try clearing the log4j logger configuration */
  67         LogManager.resetConfiguration();
  68         System.gc();
  69
  70         loggers = new Logger[] {
  71                 Logger.getLogger(LOGGER_NAME_1),
  72                 Logger.getLogger(LOGGER_NAME_2),
  73                 Logger.getLogger(LOGGER_NAME_3)
  74         };
  75
  76         appenders = new Appender[] {
  77                 new LttngLogAppender(),
  78                 new LttngLogAppender()
  79         };
  80     }
  81
  82     /**
  83      * Test teardown. Detach and close all log handlers.
  84      */
  85     @AfterEach
  86     public void log4jTeardown() {
  87         for (Logger logger : loggers) {
  88             for (Appender appender : appenders) {
  89                 logger.removeAppender(appender);
  90             }
  91         }
  92
  93         for (Appender appender : appenders) {
  94             appender.close();
  95         }
  96         appenders = null;
  97         loggers = null;
  98     }
  99
 100     @Override
 101     protected ILttngSession.Domain getDomain() {
 102         return ILttngSession.Domain.LOG4J;
 103     }
 104
 105     @Override
 106     protected void attachHandlerToLogger(int handlerIndex, int loggerIndex) {
 107         loggers[loggerIndex - 1].addAppender(appenders[handlerIndex - 1]);
 108     }
 109
 110     @Override
 111     protected void detachHandlerFromLogger(int handlerIndex, int loggerIndex) {
 112         loggers[loggerIndex - 1].removeAppender(appenders[handlerIndex - 1]);
 113     }
 114
 115 }