lttng-ust-java-tests-jul/src/test/java/org/lttng/ust/agent/benchmarks/jul/handler/lttng/old/OldLttngJulHandlerTracingEnabledBenchmark.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.benchmarks.jul.handler.lttng.old;
  20
  21 import static org.junit.jupiter.api.Assertions.assertTrue;
  22 import static org.junit.jupiter.api.Assertions.fail;
  23
  24 import java.lang.reflect.Field;
  25
  26 import org.junit.jupiter.api.AfterEach;
  27 import org.junit.jupiter.api.BeforeEach;
  28 import org.lttng.tools.ILttngSession;
  29 import org.lttng.tools.ILttngSession.Domain;
  30 import org.lttng.ust.agent.LTTngAgent;
  31 import org.lttng.ust.agent.benchmarks.jul.handler.JulHandlerBenchmarkBase;
  32 import org.lttng.ust.agent.jul.LttngLogHandler;
  33
  34 /**
  35  * Benchmark for the LTTng-UST handler, using the legacy API. Tracing is
  36  * enabled in the tracing session.
  37  */
  38 @SuppressWarnings("deprecation")
  39 public class OldLttngJulHandlerTracingEnabledBenchmark extends JulHandlerBenchmarkBase {
  40
  41     private ILttngSession session;
  42     private LTTngAgent agent;
  43     private LttngLogHandler agentHandler;
  44
  45
  46     /**
  47      * Test setup
  48      */
  49     @BeforeEach
  50     public void testSetup() {
  51         agent = LTTngAgent.getLTTngAgent();
  52
  53         /*
  54          * The "old API" works by attaching a handler managed by the agent to
  55          * the root JUL logger. This causes problems here, because we use
  56          * logger.setUserParentHandler(false), which does not trigger the
  57          * handler as would be expected.
  58          *
  59          * Instead we will retrieve this handler through reflection, and attach
  60          * it to our own logger here for the duration of the test.
  61          */
  62         try {
  63             Field julHandlerField = LTTngAgent.class.getDeclaredField("julHandler");
  64             julHandlerField.setAccessible(true);
  65             agentHandler = (LttngLogHandler) julHandlerField.get(agent);
  66
  67             logger.addHandler(agentHandler);
  68
  69         } catch (ReflectiveOperationException e) {
  70             fail(e.getMessage());
  71         }
  72
  73         session = ILttngSession.createSession(null, Domain.JUL);
  74         assertTrue(session.enableAllEvents());
  75         assertTrue(session.start());
  76     }
  77
  78     /**
  79      * Test cleanup
  80      */
  81     @AfterEach
  82     public void testTeardown() {
  83         assertTrue(session.stop());
  84         session.close();
  85
  86         logger.removeHandler(agentHandler);
  87         agent.dispose();
  88     }
  89 }