public void deleteRef()

in src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/DeleteRefCommand.java [65:127]
59 lines of code
5 McCabe index (conditional complexity)

  public void deleteRef(Project.NameKey name, String refName, String sourceLabel)
      throws IOException, RestApiException {
    try {
      repLog.info("Delete ref from {} for project {}, ref name {}", sourceLabel, name, refName);
      Optional<ProjectState> projectState = projectCache.get(name);
      if (!projectState.isPresent()) {
        throw new ResourceNotFoundException(String.format("Project %s was not found", name));
      }

      Source source =
          sourcesCollection
              .getByRemoteName(sourceLabel)
              .orElseThrow(
                  () ->
                      new IllegalStateException(
                          String.format("Could not find URI for %s remote", sourceLabel)));
      URIish sourceUri = source.getURI(name);

      try {
        Context.setLocalEvent(true);
        deleteRef.deleteSingleRef(projectState.get(), refName);

        eventDispatcher
            .get()
            .postEvent(
                new FetchRefReplicatedEvent(
                    name.get(),
                    refName,
                    sourceUri,
                    ReplicationState.RefFetchResult.SUCCEEDED,
                    RefUpdate.Result.FORCED));
      } catch (PermissionBackendException e) {
        logger.atSevere().withCause(e).log(
            "Unexpected error while trying to delete ref '%s' on project %s and notifying it",
            refName, name);
        throw RestApiException.wrap(e.getMessage(), e);
      } catch (ResourceConflictException e) {
        eventDispatcher
            .get()
            .postEvent(
                new FetchRefReplicatedEvent(
                    name.get(),
                    refName,
                    sourceUri,
                    ReplicationState.RefFetchResult.FAILED,
                    RefUpdate.Result.LOCK_FAILURE));
        String message =
            String.format(
                "RefUpdate lock failure for: sourceLabel=%s, project=%s, refName=%s",
                sourceLabel, name, refName);
        logger.atSevere().withCause(e).log(message);
        fetchStateLog.error(message);
        throw e;
      } finally {
        Context.unsetLocalEvent();
      }

      repLog.info(
          "Delete ref from {} for project {}, ref name {} completed", sourceLabel, name, refName);
    } catch (PermissionBackendException e) {
      throw RestApiException.wrap(e.getMessage(), e);
    }
  }