| 1 | package org.lttng.ust.agent.integration.log4j; |
| 2 | |
| 3 | import static org.junit.Assert.assertEquals; |
| 4 | import static org.junit.Assert.assertNotNull; |
| 5 | import static org.junit.Assert.assertTrue; |
| 6 | import static org.junit.Assert.fail; |
| 7 | import static org.junit.Assume.assumeTrue; |
| 8 | |
| 9 | import java.lang.reflect.Field; |
| 10 | import java.util.List; |
| 11 | |
| 12 | import org.apache.log4j.Level; |
| 13 | import org.apache.log4j.Logger; |
| 14 | import org.junit.After; |
| 15 | import org.junit.AfterClass; |
| 16 | import org.junit.Before; |
| 17 | import org.junit.BeforeClass; |
| 18 | import org.junit.Test; |
| 19 | import org.lttng.ust.agent.ILttngHandler; |
| 20 | import org.lttng.ust.agent.LTTngAgent; |
| 21 | import org.lttng.ust.agent.utils.LttngSession; |
| 22 | import org.lttng.ust.agent.utils.LttngSession.Domain; |
| 23 | import org.lttng.ust.agent.utils.TestUtils; |
| 24 | |
| 25 | @SuppressWarnings("deprecation") |
| 26 | public class Log4jLegacyApiTest { |
| 27 | |
| 28 | private static final Domain DOMAIN = Domain.LOG4J; |
| 29 | |
| 30 | private static final String EVENT_NAME_A = "EventA"; |
| 31 | private static final String EVENT_NAME_B = "EventB"; |
| 32 | |
| 33 | private LttngSession session; |
| 34 | |
| 35 | private Logger loggerA; |
| 36 | private Logger loggerB; |
| 37 | |
| 38 | @BeforeClass |
| 39 | public static void classSetup() { |
| 40 | /* Skip tests if we can't find the JNI library or lttng-tools */ |
| 41 | assumeTrue(TestUtils.checkForLog4jLibrary()); |
| 42 | assumeTrue(TestUtils.checkForLttngTools(Domain.LOG4J)); |
| 43 | } |
| 44 | |
| 45 | @AfterClass |
| 46 | public static void classCleanup() { |
| 47 | LttngSession.deleteAllTracee(); |
| 48 | } |
| 49 | |
| 50 | @Before |
| 51 | public void setup() { |
| 52 | loggerA = Logger.getLogger(EVENT_NAME_A); |
| 53 | LTTngAgent.getLTTngAgent(); |
| 54 | loggerB = Logger.getLogger(EVENT_NAME_B); |
| 55 | |
| 56 | loggerA.setLevel(Level.ALL); |
| 57 | loggerB.setLevel(Level.ALL); |
| 58 | |
| 59 | session = new LttngSession(null, DOMAIN); |
| 60 | } |
| 61 | |
| 62 | @After |
| 63 | public void tearDown() { |
| 64 | session.close(); |
| 65 | |
| 66 | LTTngAgent.dispose(); |
| 67 | |
| 68 | loggerA = null; |
| 69 | loggerB = null; |
| 70 | } |
| 71 | |
| 72 | @Test |
| 73 | public void testNoEvents() { |
| 74 | assertTrue(session.start()); |
| 75 | |
| 76 | Log4jTestUtils.send10Events(loggerA); |
| 77 | Log4jTestUtils.send10Events(loggerB); |
| 78 | |
| 79 | assertTrue(session.stop()); |
| 80 | |
| 81 | List<String> output = session.view(); |
| 82 | assertNotNull(output); |
| 83 | assertTrue(output.isEmpty()); |
| 84 | |
| 85 | ILttngHandler handler = getAgentHandler(); |
| 86 | assertEquals(0, handler.getEventCount()); |
| 87 | } |
| 88 | |
| 89 | @Test |
| 90 | public void testAllEvents() { |
| 91 | assertTrue(session.enableAllEvents()); |
| 92 | assertTrue(session.start()); |
| 93 | |
| 94 | Log4jTestUtils.send10Events(loggerA); |
| 95 | Log4jTestUtils.send10Events(loggerB); |
| 96 | |
| 97 | assertTrue(session.stop()); |
| 98 | |
| 99 | List<String> output = session.view(); |
| 100 | assertNotNull(output); |
| 101 | assertEquals(20, output.size()); |
| 102 | |
| 103 | ILttngHandler handler = getAgentHandler(); |
| 104 | assertEquals(20, handler.getEventCount()); |
| 105 | } |
| 106 | |
| 107 | @Test |
| 108 | public void testSomeEvents() { |
| 109 | assertTrue(session.enableEvents(EVENT_NAME_A)); |
| 110 | assertTrue(session.start()); |
| 111 | |
| 112 | Log4jTestUtils.send10Events(loggerA); |
| 113 | Log4jTestUtils.send10Events(loggerB); |
| 114 | |
| 115 | assertTrue(session.stop()); |
| 116 | |
| 117 | List<String> output = session.view(); |
| 118 | assertNotNull(output); |
| 119 | assertEquals(10, output.size()); |
| 120 | |
| 121 | ILttngHandler handler = getAgentHandler(); |
| 122 | assertEquals(10, handler.getEventCount()); |
| 123 | } |
| 124 | |
| 125 | /** |
| 126 | * Get the singleton Log4j Handler currently managed by the LTTngAgent. It |
| 127 | * is not public, so we need reflection to access it. |
| 128 | * |
| 129 | * @return The agent's Log4j handler |
| 130 | */ |
| 131 | private static ILttngHandler getAgentHandler() { |
| 132 | try { |
| 133 | Field log4jAppenderField = LTTngAgent.class.getDeclaredField("log4jAppender"); |
| 134 | log4jAppenderField.setAccessible(true); |
| 135 | return (ILttngHandler) log4jAppenderField.get(LTTngAgent.getLTTngAgent()); |
| 136 | } catch (ReflectiveOperationException | SecurityException e) { |
| 137 | fail(); |
| 138 | return null; |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | } |
| 143 | |