@Test
public void testNotifyOnStopResistant() {
listener.setResetResistant(true);
context.stop();
assertEquals(UpdateType.STOP, listener.updateType);
assertEquals(listener.context, context);
}
@Test
@Ignore
// this test works only if logback-test.xml or logback.xml files are on the classpath.
// However, this is something we try to avoid in order to simplify the life
// of users trying to follow the manual and logback-examples from an IDE
public void reset() throws JoranException {
{
new ContextInitializer(loggerContext).autoConfig();
Appender<ILoggingEvent> appender = root.getAppender("STDOUT");
assertNotNull(appender);
assertTrue(appender instanceof ConsoleAppender);
}
{
loggerContext.stop();
Appender<ILoggingEvent> appender = root.getAppender("STDOUT");
assertNull(appender);
}
}
static void perfCase(boolean safetyMode) throws Exception {
LoggerContext lc = buildLoggerContext(FILENAME + "-" + safetyMode + ".log", safetyMode);
Logger logger = lc.getLogger(FileAppenderPerf.class);
long start = System.nanoTime();
for (int i = 0; i < LEN; i++) {
logger.debug(msgLong + " " + i);
}
// in microseconds
double durationPerLog = (System.nanoTime() - start) / (LEN * 1000.0);
lc.stop();
System.out.println(
"Average duration of "
+ (durationPerLog)
+ " microseconds per log. Prudent mode="
+ safetyMode);
System.out.println("------------------------------------------------");
}
@Test
public void testNotifyOnStopNotResistant() {
context.stop();
assertEquals(UpdateType.RESET, listener.updateType);
assertEquals(listener.context, context);
}
/**
* This method must be called when the application is getting closed/destroyed. In order to
* release the resources used by logback-classic, it is always a good idea to stop the logback
* context. Stopping the context will stop all appenders attached to loggers defined by the
* context and stop any active threads. This mean all unprocessed events in the appender's queue
* will get discarded. Hence if developers don't want their log events to get discarded then they
* need to make sure that they call this method only when all the events in the queue are
* processed by appenders (SocketAppender to be more precisely, which is slow is processing events
* as it has to sent them over wire to central log server). To achieve this just call this method
* after giving a appropriate sleep/delay duration. If losing unprocessed events is not important
* then this can be called without any sleep/delay.
*/
public static void stopLoggerContext() {
LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
loggerContext.stop();
}
@SuppressWarnings("unchecked")
public static void main(String... args) throws ParseException, JoranException, IOException {
Parser parser = new BasicParser();
CommandLine cl = null;
try {
cl = parser.parse(OPTS, args);
} catch (ParseException e) {
HelpFormatter help = new HelpFormatter();
help.printHelp("dlog", OPTS, true);
System.exit(-1);
}
LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
loggerContext.reset();
if (cl.hasOption("config")) {
// Read Logback configuration
JoranConfigurator configurator = new JoranConfigurator();
configurator.setContext(loggerContext);
configurator.doConfigure(cl.getOptionValue("file", "logback.xml"));
StatusPrinter.printInCaseOfErrorsOrWarnings(loggerContext);
} else {
BasicConfigurator.configure(loggerContext);
}
Appender appender = null;
if (cl.hasOption("output")) {
String outputAppender = cl.getOptionValue("output", "console");
appender = loggerContext.getLogger(Logger.ROOT_LOGGER_NAME).getAppender(outputAppender);
}
ChronicleTools.warmup();
Chronicle chronicle = new IndexedChronicle(cl.getOptionValue("path"), ChronicleConfig.DEFAULT);
ExcerptTailer ex = chronicle.createTailer();
Level level = Level.valueOf(cl.getOptionValue("level", "TRACE"));
if (cl.hasOption("head")) {
int lines = Integer.parseInt(cl.getOptionValue("head", "10"));
for (int i = 0; i < lines; i++) {
LoggingEvent evt = readLoggingEvent(ex, loggerContext);
if (evt.getLevel().isGreaterOrEqual(level)) {
writeEvent(evt, appender);
}
}
} else if (cl.hasOption("tail")) {
int lines = Integer.parseInt(cl.getOptionValue("tail", "10"));
Queue<LoggingEvent> tail = new LinkedBlockingQueue<LoggingEvent>(lines);
while (ex.nextIndex()) {
LoggingEvent evt = readLoggingEvent(ex, loggerContext);
if (!tail.offer(evt)) {
tail.poll();
tail.add(evt);
}
}
LoggingEvent evt;
while (null != (evt = tail.poll())) {
if (evt.getLevel().isGreaterOrEqual(level)) {
writeEvent(evt, appender);
}
}
} else if (cl.hasOption("search")) {
String regex = cl.getOptionValue("search");
Pattern regexPatt = Pattern.compile(regex);
while (ex.nextIndex()) {
LoggingEvent evt = readLoggingEvent(ex, loggerContext);
if (null != evt && evt.getLevel().isGreaterOrEqual(level)) {
if (regexPatt.matcher(evt.getFormattedMessage()).matches()) {
writeEvent(evt, appender);
}
}
}
}
loggerContext.stop();
chronicle.close();
}
/**
* Shut down logback, properly releasing all file locks.
*
* <p>This isn't strictly necessary, but recommended for shutting down logback in a scenario where
* the host VM stays alive (for example, when shutting down an application in a J2EE environment).
*/
public static void shutdownLogging() {
lc.stop();
}
/**
* Shut down logback.
*
* <p>This isn't strictly necessary, but recommended for shutting down logback in a scenario where
* the host VM stays alive (for example, when shutting down an application in a J2EE environment).
*/
public static void shutdownLogging() {
LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
loggerContext.stop();
}
private void checkThatTaskCanBeStopped() {
ScheduledFuture<?> future = loggerContext.getScheduledFutures().get(0);
loggerContext.stop();
assertTrue(future.isCancelled());
}
