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.junit.jupiter.api.Tag;
  29 import org.lttng.tools.ILttngSession;
  30 import org.lttng.tools.ILttngSession.Domain;
  31 import org.lttng.ust.agent.LTTngAgent;
  32 import org.lttng.ust.agent.benchmarks.jul.handler.JulHandlerBenchmarkBase;
  33 import org.lttng.ust.agent.jul.LttngLogHandler;
  34
  35 /**
  36  * Benchmark for the LTTng-UST handler, using the legacy API. Tracing is
  37  * enabled in the tracing session.
  38  */
  39 @Tag("agent:jul")
  40 @Tag("domain:jul")
  41 @Tag("benchmark")
  42 @SuppressWarnings("deprecation")
  43 public class OldLttngJulHandlerTracingEnabledBenchmark extends JulHandlerBenchmarkBase {
  44
  45     private ILttngSession session;
  46     private LTTngAgent agent;
  47     private LttngLogHandler agentHandler;
  48
  49
  50     /**
  51      * Test setup
  52      */
  53     @BeforeEach
  54     public void testSetup() {
  55         agent = LTTngAgent.getLTTngAgent();
  56
  57         /*
  58          * The "old API" works by attaching a handler managed by the agent to
  59          * the root JUL logger. This causes problems here, because we use
  60          * logger.setUserParentHandler(false), which does not trigger the
  61          * handler as would be expected.
  62          *
  63          * Instead we will retrieve this handler through reflection, and attach
  64          * it to our own logger here for the duration of the test.
  65          */
  66         try {
  67             Field julHandlerField = LTTngAgent.class.getDeclaredField("julHandler");
  68             julHandlerField.setAccessible(true);
  69             agentHandler = (LttngLogHandler) julHandlerField.get(agent);
  70
  71             logger.addHandler(agentHandler);
  72
  73         } catch (ReflectiveOperationException e) {
  74             fail(e.getMessage());
  75         }
  76
  77         session = ILttngSession.createSession(null, Domain.JUL);
  78         assertTrue(session.enableAllEvents());
  79         assertTrue(session.start());
  80     }
  81
  82     /**
  83      * Test cleanup
  84      */
  85     @AfterEach
  86     public void testTeardown() {
  87         assertTrue(session.stop());
  88         session.close();
  89
  90         logger.removeHandler(agentHandler);
  91         agent.dispose();
  92     }
  93 }