public void addReviewers()

in owners-autoassign/src/main/java/com/googlesource/gerrit/owners/common/ReviewerManager.java [83:141]
53 lines of code
6 McCabe index (conditional complexity)

  public void addReviewers(
      NameKey projectNameKey, ChangeApi cApi, Collection<Account.Id> accountsIds)
      throws ReviewerManagerException, NoSuchProjectException {
    try {
      ChangeInfo changeInfo = cApi.get();
      ReviewerState reviewerState = cfg.autoassignedReviewerState(projectNameKey);
      try (ManualRequestContext ctx =
          requestContext.openAs(Account.id(changeInfo.owner._accountId))) {
        // TODO(davido): Switch back to using changes API again,
        // when it supports batch mode for adding reviewers
        ReviewInput in = new ReviewInput();
        in.reviewers = new ArrayList<>(accountsIds.size());
        Collection<Account.Id> validOwnersForAttentionSet = new ArrayList<>(accountsIds.size());
        for (Account.Id account : accountsIds) {
          if (isVisibleTo(changeInfo, account)) {
            ReviewerInput addReviewerInput = new ReviewerInput();
            addReviewerInput.reviewer = account.toString();
            addReviewerInput.state = reviewerState;
            in.reviewers.add(addReviewerInput);

            if (reviewerState == ReviewerState.REVIEWER) {
              validOwnersForAttentionSet.add(account);
            }
          } else {
            log.warn(
                "Not adding account {} as reviewer to change {} because the associated ref is not visible",
                account,
                changeInfo._number);
          }
        }

        Collection<Account.Id> reviewersAccounts;
        if (validOwnersForAttentionSet.isEmpty()) {
          reviewersAccounts = Collections.emptyList();
        } else {
          reviewersAccounts =
              Optional.ofNullable(ownersForAttentionSet)
                  .map(DynamicItem::get)
                  .filter(Objects::nonNull)
                  .map(owners -> owners.addToAttentionSet(changeInfo, validOwnersForAttentionSet))
                  .orElse(validOwnersForAttentionSet);
        }

        in.ignoreAutomaticAttentionSetRules = true;
        in.addToAttentionSet =
            ownersForAttentionSet.get().addToAttentionSet(changeInfo, reviewers).stream()
                .map(
                    (reviewer) ->
                        new AttentionSetInput(
                            reviewer.toString(), "Selected as member of the OWNERS file"))
                .collect(Collectors.toList());

        gApi.changes().id(changeInfo.id).current().review(in);
      }
    } catch (RestApiException e) {
      log.error("Couldn't add reviewers to the change", e);
      throw new ReviewerManagerException(e);
    }
  }