Examples of org.apache.log4j.Layout

org.apache.log4j.Layout
Extend this abstract class to create your own log layout format. @author Ceki Gülcü @author Chris Nokes

        else
        {
            iterator = inMemoryAppender.iterator(true);
        }


        Layout layout = inMemoryAppender.getLayout();
        PrintWriter w = response.getWriter();
        while (!w.checkError() && iterator.hasNext())
        {
            LoggingEvent e = iterator.next();
            if (e != null)
            {
                w.print(layout.format(e));
            }
            if (!isDownload)
            {
                w.flush();
            }

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  @Test(timeout=20000)
  public void testWarnCommandOpts() throws Exception {
    Logger logger = Logger.getLogger(YARNRunner.class);
    
    ByteArrayOutputStream bout = new ByteArrayOutputStream();
    Layout layout = new SimpleLayout();
    Appender appender = new WriterAppender(layout, bout);
    logger.addAppender(appender);
    
    JobConf jobConf = new JobConf();

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    }
    


    private LogCapturer(Logger logger) {
      this.logger = logger;
      Layout layout = Logger.getRootLogger().getAppender("stdout").getLayout();
      WriterAppender wa = new WriterAppender(layout, sw);
      logger.addAppender(wa);
    }

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    }


    public String[] getLogMessages() {
        LoggingEvent[] events = this.getLogEvents();
        String[] ret = new String[events.length];
        Layout layout = this.getLayout();
        for (int i = 0; i < events.length; i++) {
            ret[i] = layout.format(events[i]);
        } // FOR
        return (ret);
    }

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    }
    
    
    @SuppressWarnings("unchecked")
    public static void enableRingBufferAppender(Logger logger, int bufferSize) {
        Layout l = null;
        if (LOG.isDebugEnabled())
            LOG.debug(logger + " => " + logger.getAllAppenders());
        for (Object o : CollectionUtil.iterable(logger.getAllAppenders())) {
            Appender a = (Appender)o;
            l = a.getLayout();

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        return (events);
    }
    
    public static Collection<String> getLoggingMessages(RingBufferAppender...appenders) {
        List<LoggingEvent> events = new ArrayList<LoggingEvent>();
        Layout layout = null; 
        for (RingBufferAppender rba : appenders) {
            LoggingEvent e[] = rba.getLogEvents();
            if (LOG.isDebugEnabled())
                LOG.debug("Got " + e.length + " LoggingEvents for " + rba);
            CollectionUtil.addAll(events, e);
            if (layout == null) layout = rba.getLayout();
        } // FOR
        if (events.isEmpty() == false) assert(layout != null);
        
        Collections.sort(events, new Comparator<LoggingEvent>() {
            @Override
            public int compare(LoggingEvent o1, LoggingEvent o2) {
                return (int)(o1.timeStamp - o2.timeStamp);
            }
        });
        List<String> messages = new ArrayList<String>();
        for (LoggingEvent event : events) {
            messages.add(layout.format(event));
        } // FOR
        return (messages);
    }

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    }


    public void testJoinFail() throws Exception {
        Logger logger = Logger.getLogger(SignalXCommand.class);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        Layout layout = new SimpleLayout();
        Appender appender = new WriterAppender(layout, out);
        logger.addAppender(appender);


        FileSystem fs = getFileSystem();
        Path appPath = new Path(getFsTestCaseDir(), "app");

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    @Test
    public void testLogMessagePrefix() throws Exception {
        Logger logger = Logger.getLogger(DependencyChecker.class);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        Layout layout = new SimpleLayout();
        Appender appender = new WriterAppender(layout, out);
        logger.addAppender(appender);


        String db = "default";
        String table = "tablename";

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    assertEquals(appender.getIsCleanup(),false);
    
    // test writer   
    Writer writer= new StringWriter();
    appender.setWriter(writer);
    Layout layout =  new PatternLayout("%-5p [%t]: %m%n");
    appender.setLayout(layout);
    Category logger= Logger.getLogger(getClass().getName());
    LoggingEvent event = new LoggingEvent("fqnOfCategoryClass", logger, Priority.INFO, "message", new Throwable());
    appender.append(event);
    appender.flush() ;

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  @Test(timeout=20000)
  public void testWarnCommandOpts() throws Exception {
    Logger logger = Logger.getLogger(YARNRunner.class);
    
    ByteArrayOutputStream bout = new ByteArrayOutputStream();
    Layout layout = new SimpleLayout();
    Appender appender = new WriterAppender(layout, bout);
    logger.addAppender(appender);
    
    JobConf jobConf = new JobConf();

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