Java ListAppender类代码示例

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
@Test
public void testClassName() {
    final Category category = Category.getInstance("TestCategory");
    final Layout<String> layout = PatternLayout.createLayout("%d %p %C{1.} [%t] %m%n", null, null, null, null);
    final ListAppender appender = new ListAppender("List2", null, layout, false, false);
    appender.start();
    category.setAdditivity(false);
    category.getLogger().addAppender(appender);
    category.error("Test Message");
    final List<String> msgs = appender.getMessages();
    assertTrue("Incorrect number of messages. Expected 1 got " + msgs.size(), msgs.size() == 1);
    final String msg = msgs.get(0);
    appender.clear();
    final String threadName = Thread.currentThread().getName();
    final String expected = "ERROR o.a.l.CategoryTest [" + threadName + "] Test Message" + Constants.LINE_SEP;
    assertTrue("Incorrect message \"" + msg + "\"" + " expected \"" + expected +"\"", msg.endsWith(expected));
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
/**
 * Tests logger.trace(Object).
 */
@Test
public void testTrace() {
    final ListAppender appender = new ListAppender("List");
    appender.start();
    final Logger root = Logger.getRootLogger();
    root.getLogger().addAppender(appender);
    root.setLevel(Level.INFO);

    final Logger tracer = Logger.getLogger("com.example.Tracer");
    tracer.setLevel(Level.TRACE);

    tracer.trace("Message 1");
    root.trace("Discarded Message");
    root.trace("Discarded Message");

    final List<LogEvent> msgs = appender.getEvents();
    assertEquals(1, msgs.size());
    final LogEvent event = msgs.get(0);
    assertEquals(org.apache.logging.log4j.Level.TRACE, event.getLevel());
    assertEquals("Message 1", event.getMessage().getFormat());
    appender.stop();
    root.getLogger().removeAppender(appender);
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
/**
 * Tests logger.trace(Object, Exception).
 */
@Test
public void testTraceWithException() {
    final ListAppender appender = new ListAppender("List");
    appender.start();
    final Logger root = Logger.getRootLogger();
    root.getLogger().addAppender(appender);
    root.setLevel(Level.INFO);

    final Logger tracer = Logger.getLogger("com.example.Tracer");
    tracer.setLevel(Level.TRACE);
    final NullPointerException ex = new NullPointerException();

    tracer.trace("Message 1", ex);
    root.trace("Discarded Message", ex);
    root.trace("Discarded Message", ex);

    final List<LogEvent> msgs = appender.getEvents();
    assertEquals(1, msgs.size());
    final LogEvent event = msgs.get(0);
    assertEquals(org.apache.logging.log4j.Level.TRACE, event.getLevel());
    assertEquals("Message 1", event.getMessage().getFormattedMessage());
    appender.stop();
    root.getLogger().removeAppender(appender);
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
/**
 * Tests isTraceEnabled.
 */
@Test
public void testIsTraceEnabled() {
    final ListAppender appender = new ListAppender("List");
    appender.start();
    final Logger root = Logger.getRootLogger();
    root.getLogger().addAppender(appender);
    root.setLevel(Level.INFO);

    final Logger tracer = Logger.getLogger("com.example.Tracer");
    tracer.setLevel(Level.TRACE);

    assertTrue(tracer.isTraceEnabled());
    assertFalse(root.isTraceEnabled());
    appender.stop();
    root.getLogger().removeAppender(appender);
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
@Test
@SuppressWarnings("deprecation")
public void testLog() {
    final PatternLayout layout = PatternLayout.createLayout("%d %C %L %m", null, null, null, null);
    final ListAppender appender = new ListAppender("List", null, layout, false, false);
    appender.start();
    final Logger root = Logger.getRootLogger();
    root.getLogger().addAppender(appender);
    root.setLevel(Level.INFO);
    final MyLogger log = new MyLogger(root);
    log.logInfo("This is a test", null);
    root.log(Priority.INFO, "Test msg2", null);
    root.log(Priority.INFO, "Test msg3");
    final List<String> msgs = appender.getMessages();
    assertTrue("Incorrect number of messages", msgs.size() == 3);
    final String msg = msgs.get(0);
    assertTrue("Message contains incorrect class name: " + msg, msg.contains(LoggerTest.class.getName()));
    appender.stop();
    root.getLogger().removeAppender(appender);
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
private void verify(final String expected) {
    final LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
    final Map<String, Appender> list = ctx.getConfiguration().getAppenders();
    final Appender listApp = list.get("List");
    assertNotNull("Missing Appender", listApp);
    assertTrue("Not a ListAppender", listApp instanceof ListAppender);
    final List<String> events = ((ListAppender) listApp).getMessages();
    try
    {
        assertEquals("Incorrect number of messages.", 1, events.size());
        assertEquals("Incorrect message.", "o.a.l.l.t.CatchingTagTest " + expected, events.get(0));
    }
    finally
    {
        ((ListAppender) listApp).clear();
    }
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
private void verify(final String expected) {
    final LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
    final Map<String, Appender> list = ctx.getConfiguration().getAppenders();
    final Appender listApp = list.get("List");
    assertNotNull("Missing Appender", listApp);
    assertTrue("Not a ListAppender", listApp instanceof ListAppender);
    final List<String> events = ((ListAppender) listApp).getMessages();
    try
    {
        assertEquals("Incorrect number of messages.", 1, events.size());
        assertEquals("Incorrect message.", "o.a.l.l.t.EntryTagTest " + expected, events.get(0));
    }
    finally
    {
        ((ListAppender) listApp).clear();
    }
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
@SuppressWarnings("unchecked")
private void verify(final String expected) {
    final LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
    final Map<String, Appender> list = ctx.getConfiguration().getAppenders();
    final Appender listApp = list.get("List");
    assertNotNull("Missing Appender", listApp);
    assertTrue("Not a ListAppender", listApp instanceof ListAppender);
    final List<String> events = ((ListAppender) listApp).getMessages();
    try
    {
        assertEquals("Incorrect number of messages.", 1, events.size());
        assertEquals("Incorrect message.", "o.a.l.l.t.LoggingMessageTagSupportTest " + expected, events.get(0));
    }
    finally
    {
        ((ListAppender) listApp).clear();
    }
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
private void verify(final String expected) {
    final LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
    final Map<String, Appender> list = ctx.getConfiguration().getAppenders();
    final Appender listApp = list.get("List");
    assertNotNull("Missing Appender", listApp);
    assertTrue("Not a ListAppender", listApp instanceof ListAppender);
    final List<String> events = ((ListAppender) listApp).getMessages();
    try
    {
        assertEquals("Incorrect number of messages.", 1, events.size());
        assertEquals("Incorrect message.", "o.a.l.l.t.ExitTagTest " + expected, events.get(0));
    }
    finally
    {
        ((ListAppender) listApp).clear();
    }
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
@Before
public void before() {
    config = ctx.getConfiguration();
    for (final Map.Entry<String, Appender> entry : config.getAppenders().entrySet()) {
        if (entry.getKey().equals("List")) {
            app = (ListAppender) entry.getValue();
        } else if (entry.getKey().equals("HostTest")) {
            host = (ListAppender) entry.getValue();
        } else if (entry.getKey().equals("NoThrowable")) {
            noThrown = (ListAppender) entry.getValue();
        }
    }
    assertNotNull("No Appender", app);
    assertNotNull("No Host Appender", host);
    app.clear();
    host.clear();
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
@BeforeClass
public static void setupClass() {
    System.setProperty(Constants.LOG4J_LOG_EVENT_FACTORY, TestLogEventFactory.class.getName());
    System.setProperty(ConfigurationFactory.CONFIGURATION_FILE_PROPERTY, CONFIG);
    ctx = (LoggerContext) LogManager.getContext(false);
    config = ctx.getConfiguration();
    for (final Map.Entry<String, Appender> entry : config.getAppenders().entrySet()) {
        if (entry.getKey().equals("List")) {
            app = (ListAppender) entry.getValue();
            break;
        }
    }
    if (app == null) {
        fail("No List Appender could be found");
    }
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
@Test
public void testConfig() {
    final Configuration config = context.getConfiguration();
    final Filter filter = config.getFilter();
    assertNotNull("No MapFilter", filter);
    assertTrue("Not a MapFilter", filter instanceof  MapFilter);
    final MapFilter mapFilter = (MapFilter) filter;
    assertFalse("Should not be And filter", mapFilter.isAnd());
    final Map<String, List<String>> map = mapFilter.getMap();
    assertNotNull("No Map", map);
    assertFalse("No elements in Map", map.isEmpty());
    assertEquals("Incorrect number of elements in Map", 1, map.size());
    assertTrue("Map does not contain key eventId", map.containsKey("eventId"));
    assertEquals("List does not contain 2 elements", 2, map.get("eventId").size());
    final Logger logger = LogManager.getLogger(MapFilterTest.class);
    final Map<String, String> eventMap = new HashMap<>();
    eventMap.put("eventId", "Login");
    logger.debug(new StringMapMessage(eventMap));
    final ListAppender app = context.getListAppender("LIST");
    final List<String> msgs = app.getMessages();
    assertNotNull("No messages", msgs);
    assertFalse("No messages", msgs.isEmpty());


}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
@Test
public void testLogJsonArgument() throws InterruptedException {
    final ListAppender appender = (ListAppender) init.getAppender("List");
    appender.countDownLatch = new CountDownLatch(4);
    appender.clear();
    final Logger logger = (Logger) LogManager.getRootLogger();
    final String json = "{\"id\":10,\"name\":\"Alice\"}";
    logger.error("log:{}", json);
    // wait until background thread finished processing
    final int msgCount = 1;
    if (appender.getMessages().size() < msgCount) {
        appender.countDownLatch.await(5, TimeUnit.SECONDS);
    }
    assertEquals("Background thread did not finish processing: msg count", msgCount, appender.getMessages().size());

    // don't stop appender until background thread is done
    appender.stop();
    final List<String> list = appender.getMessages();
    final String eventStr = list.get(0).toString();
    Assert.assertTrue(eventStr, eventStr.contains(json));
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
@Test
public void testClassName() {
    final Category category = Category.getInstance("TestCategory");
    final Layout<String> layout = PatternLayout.newBuilder().withPattern("%d %p %C{1.} [%t] %m%n").build();
    final ListAppender appender = new ListAppender("List2", null, layout, false, false);
    appender.start();
    category.setAdditivity(false);
    category.getLogger().addAppender(appender);
    category.error("Test Message");
    final List<String> msgs = appender.getMessages();
    assertTrue("Incorrect number of messages. Expected 1 got " + msgs.size(), msgs.size() == 1);
    final String msg = msgs.get(0);
    appender.clear();
    final String threadName = Thread.currentThread().getName();
    final String expected = "ERROR o.a.l.CategoryTest [" + threadName + "] Test Message" + Strings.LINE_SEPARATOR;
    assertTrue("Incorrect message " + Strings.dquote(msg) + " expected " + Strings.dquote(expected), msg.endsWith(expected));
}
 

import org.apache.logging.log4j.test.appender.ListAppender; //导入依赖的package包/类
/**
 * Tests isTraceEnabled.
 */
@Test
public void testIsTraceEnabled() {
    final ListAppender appender = new ListAppender("List");
    appender.start();
    final Logger root = Logger.getRootLogger();
    try {
        root.getLogger().addAppender(appender);
        root.setLevel(Level.INFO);

        final Logger tracer = Logger.getLogger("com.example.Tracer");
        tracer.setLevel(Level.TRACE);

        assertTrue(tracer.isTraceEnabled());
        assertFalse(root.isTraceEnabled());
        appender.stop();
    } finally {
        root.getLogger().removeAppender(appender);
    }
}