git.lttng.org Git - lttng-ust-java-tests.git/blob

   1 package org.lttng.ust.agent.benchmarks.jul.handler.lttng.old;
   2
   3 import static org.junit.Assert.assertTrue;
   4 import static org.junit.Assert.fail;
   5
   6 import java.lang.reflect.Field;
   7
   8 import org.junit.After;
   9 import org.junit.Before;
  10 import org.lttng.ust.agent.LTTngAgent;
  11 import org.lttng.ust.agent.benchmarks.jul.handler.AbstractJulBenchmark;
  12 import org.lttng.ust.agent.jul.LttngLogHandler;
  13 import org.lttng.ust.agent.utils.LttngSession;
  14 import org.lttng.ust.agent.utils.LttngSession.Domain;
  15
  16 @SuppressWarnings("deprecation")
  17 public class OldLttngJulHandlerTracingEnabledBenchmark extends AbstractJulBenchmark {
  18
  19     private LttngSession session;
  20     private LttngLogHandler agentHandler;
  21
  22     @Before
  23     public void testSetup() {
  24         LTTngAgent agentInstance = LTTngAgent.getLTTngAgent();
  25
  26         /*
  27          * The "old API" works by attaching a handler managed by the agent to
  28          * the root JUL logger. This causes problems here, because we use
  29          * logger.setUserParentHandler(false), which does not trigger the
  30          * handler as would be expected.
  31          *
  32          * Instead we will retrieve this handler through reflection, and attach
  33          * it to our own logger here for the duration of the test.
  34          */
  35         try {
  36             Field julHandlerField = LTTngAgent.class.getDeclaredField("julHandler");
  37             julHandlerField.setAccessible(true);
  38             agentHandler = (LttngLogHandler) julHandlerField.get(agentInstance);
  39
  40             logger.addHandler(agentHandler);
  41
  42         } catch (ReflectiveOperationException e) {
  43             fail();
  44         }
  45
  46         session = new LttngSession(null, Domain.JUL);
  47         assertTrue(session.enableAllEvents());
  48         assertTrue(session.start());
  49     }
  50
  51     @After
  52     public void testTeardown() {
  53         assertTrue(session.stop());
  54         session.close();
  55
  56         logger.removeHandler(agentHandler);
  57         LTTngAgent.dispose();
  58     }
  59 }