private void onEvent()

in src/main/java/com/googlesource/gerrit/plugins/reviewers/Reviewers.java [85:126]
36 lines of code
9 McCabe index (conditional complexity)

  private void onEvent(ChangeEvent event) {
    ChangeInfo c = event.getChange();
    /* Never add reviewers automatically to private changes. */
    if (Boolean.TRUE.equals(c.isPrivate)) {
      return;
    }
    if (config.ignoreWip() && Boolean.TRUE.equals(c.workInProgress)) {
      return;
    }
    Project.NameKey projectName = Project.nameKey(c.project);

    List<ReviewerFilter> filters = getFilters(projectName);

    if (filters.isEmpty()) {
      return;
    }

    AccountInfo uploader = event.getWho();
    int changeNumber = c._number;
    try {
      Set<String> reviewers = filterUtil.findReviewers(changeNumber, filters);
      Set<String> ccs = filterUtil.findCcs(changeNumber, filters);
      if (reviewers.isEmpty() && ccs.isEmpty()) {
        return;
      }
      /* Remove all reviewer identifiers (account-ids, group-ids) from ccs that are present in reviewers.
       * Further filtering of individual accounts is done in AddReviewers after the ids have been resolved into Accounts. */
      ccs.removeAll(reviewers);
      final AddReviewers addReviewers =
          addReviewersFactory.create(
              c,
              resolver.resolve(reviewers, projectName, changeNumber, uploader),
              resolver.resolve(ccs, projectName, changeNumber, uploader));
      workQueue.submit(addReviewers);
    } catch (QueryParseException e) {
      logger.atWarning().log(
          "Could not add default reviewers for change %d of project %s, filter is invalid: %s",
          changeNumber, projectName.get(), e.getMessage());
    } catch (StorageException x) {
      logger.atSevere().withCause(x).log("%s", x.getMessage());
    }
  }