How to use

LineOfCallerConverter

in

ch.qos.logback.classic.pattern

 @Override
 public JsonElement serialize(ILoggingEvent event, Type typeOfSrc, JsonSerializationContext context) {
  JsonObject json = new JsonObject();
  json.addProperty("name", event.getLoggerName());
  json.addProperty("host", hostname);
  json.addProperty("timestamp", Long.toString(event.getTimeStamp()));
  json.addProperty("level", event.getLevel().toString());
  json.addProperty("className", classNameConverter.convert(event));
  json.addProperty("method", methodConverter.convert(event));
  json.addProperty("file", fileConverter.convert(event));
  json.addProperty("line", lineConverter.convert(event));
  json.addProperty("thread", event.getThreadName());
  json.addProperty("message", event.getFormattedMessage());
  json.addProperty("runnableName", runnableName);
  if (event.getThrowableProxy() == null) {
   json.add("throwable", JsonNull.INSTANCE);
  } else {
   json.add("throwable", context.serialize(new DefaultLogThrowable(event.getThrowableProxy()), LogThrowable.class));
  }

  return json;
 }
}

@Test
public void testLineOfCaller() {
 assumeStackTraceDetailsAvailable();
 DynamicConverter<ILoggingEvent> converter = new LineOfCallerConverter();
 StringBuilder buf = new StringBuilder();
 converter.write(buf, le);
 // the number below should be the line number of the previous line
 assertEquals("76", buf.toString());
}

 @Override
 public JsonElement serialize(ILoggingEvent event, Type typeOfSrc, JsonSerializationContext context) {
  JsonObject json = new JsonObject();
  json.addProperty("name", event.getLoggerName());
  json.addProperty("host", hostname);
  json.addProperty("timestamp", Long.toString(event.getTimeStamp()));
  json.addProperty("level", event.getLevel().toString());
  json.addProperty("className", classNameConverter.convert(event));
  json.addProperty("method", methodConverter.convert(event));
  json.addProperty("file", fileConverter.convert(event));
  json.addProperty("line", lineConverter.convert(event));
  json.addProperty("thread", event.getThreadName());
  json.addProperty("message", event.getFormattedMessage());
  json.addProperty("runnableName", runnableName);
  if (event.getThrowableProxy() == null) {
   json.add("throwable", JsonNull.INSTANCE);
  } else {
   json.add("throwable", context.serialize(new DefaultLogThrowable(event.getThrowableProxy()), LogThrowable.class));
  }

  return json;
 }
}