public boolean readOne() {
if (!excerpt.nextIndex()) {
// System.out.println("r- " + excerpt.index());
return false;
}
long pos = excerpt.position();
// System.out.println("r " + excerpt.index() + " " + excerpt.capacity());
MessageType mt = excerpt.readEnum(MessageType.class);
if (mt == null) {
// rewind and read again.
excerpt.position(pos);
System.err.println("Unknown message type " + excerpt.readUTFΔ());
return true;
}
switch (mt) {
case small:
{
metaData.sourceId = sourceId;
metaData.readFromGateway(excerpt);
smallCommand.readMarshallable(excerpt);
peEvents.small(metaData, smallCommand);
break;
}
default:
System.err.println("Unknown message type " + mt);
break;
}
return true;
}
public static void main(@NotNull String... args) throws IOException, InterruptedException {
if (args.length < 1) {
System.err.println(
"Usage: java " + ChronicleReader.class.getName() + " {chronicle-base-path} [from-index]");
System.exit(-1);
}
String basePath = args[0];
long index = args.length > 1 ? Long.parseLong(args[1]) : 0L;
IndexedChronicle ic = new IndexedChronicle(basePath);
ExcerptTailer excerpt = ic.createTailer();
//noinspection InfiniteLoopStatement
while (true) {
while (!excerpt.nextIndex())
//noinspection BusyWait
Thread.sleep(50);
System.out.print(index + ": ");
int nullCount = 0;
while (excerpt.remaining() > 0) {
char ch = (char) excerpt.readUnsignedByte();
if (ch == 0) {
nullCount++;
continue;
}
if (nullCount > 0) System.out.print(" " + nullCount + "*\\0");
nullCount = 0;
if (ch < ' ') System.out.print("^" + (char) (ch + '@'));
else if (ch > 126) System.out.print("\\x" + Integer.toHexString(ch));
else System.out.print(ch);
}
if (nullCount > 0) System.out.print(" " + nullCount + "*\\0");
System.out.println();
index++;
}
}
@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();
}
