How to use

clear

method

in

com.yahoo.bard.webservice.logging.RequestLog

/**
 * Exports a snapshot of the request log of the current thread and also resets the request log for that thread.
 *
 * @return the log context of the current thread
 */
public static RequestLog dump() {
  RequestLog current = RLOG.get();
  RequestLog copy = new RequestLog(current);
  current.clear();
  RLOG.remove();
  return copy;
}

/**
 * Overwrite current thread's request log context.
 * It first clears the request log of the current thread and then fills it with the contents found in ctx
 *
 * @param ctx  the log context to restore to current thread's request log
 */
public static void restore(RequestLog ctx) {
  RequestLog current = RLOG.get();
  current.clear();
  current.logId = ctx.logId;
  current.info = ctx.info;
  current.mostRecentTimer = ctx.mostRecentTimer;
  current.times.putAll(ctx.times);
  current.threadIds.addAll(ctx.threadIds);
  current.threadIds.add(Thread.currentThread().getName());
  MDC.put(ID_KEY, current.logId);
}

/**
 * Write the request log object of the current thread as JSON.
 * The thread's request log is cleared after a call to this method.
 */
public static void log() {
  RequestLog current = RLOG.get();
  if (current.info == null) {
    LOG.warn("Attempted to log while request log object was uninitialized");
    return;
  }
  LOG.info(export());
  current.clear();
}