private void applyLabelsTo()

in src/main/java/com/googlesource/gerrit/plugins/simplesubmitrules/config/ConfigTranslator.java [131:190]
55 lines of code
10 McCabe index (conditional complexity)

  private void applyLabelsTo(
      Map<String, LabelDefinition> labels,
      ProjectConfig projectConfig,
      PluginConfig hostPluginConfig)
      throws BadRequestException, IOException {
    if (labels.isEmpty()) {
      return;
    }

    for (Map.Entry<String, LabelDefinition> entry : labels.entrySet()) {
      if (!projectConfig.getLabelSections().containsKey(entry.getKey())) {
        // The current project does not have this label. Try to copy it down from the inherited
        // labels to be able to modify it locally.
        Map<String, LabelType> copiedLabelTypes = projectConfig.getLabelSections();
        ProjectState projectState =
            projectCache
                .get(projectConfig.getName())
                .orElseThrow(illegalState(projectConfig.getName()));
        projectState.getLabelTypes().getLabelTypes().stream()
            .filter(l -> l.getName().equals(entry.getKey()))
            .filter(l -> l.isCanOverride())
            .forEach(l -> copiedLabelTypes.put(l.getName(), l));
      }

      String label = entry.getKey();
      LabelDefinition definition = entry.getValue();
      if (projectConfig.getLabelSections().get(label) == null) {
        throw new BadRequestException(
            "The label " + label + " does not exist. You can't change its config.");
      }
      if (definition.getFunction().isPresent()) {
        Set<String> disallowedLabelFunctions =
            ImmutableSet.copyOf(
                hostPluginConfig.getStringList("disallowedLabelFunctions-" + label));
        LabelFunction function = definition.getFunction().get();
        if (disallowedLabelFunctions.contains(function.getFunctionName())) {
          throw new BadRequestException(function.getFunctionName() + " disallowed");
        }
      }
      projectConfig.updateLabelType(
          label,
          labelType -> {
            if (definition.ignoreSelfApproval != null) {
              labelType.setIgnoreSelfApproval(definition.ignoreSelfApproval);
            }
            if (definition.getFunction().isPresent()) {
              labelType.setFunction(definition.getFunction().get());
            }
          });

      if (definition.copyScoreRules != null) {
        LabelType.Builder builder = projectConfig.getLabelSections().get(label).toBuilder();
        Set<String> disallowedCopyScoreRules =
            ImmutableSet.copyOf(
                hostPluginConfig.getStringList("disallowedCopyScoreRules-" + label));
        applyCopyScoreRulesTo(definition.copyScoreRules, disallowedCopyScoreRules, builder);
        projectConfig.upsertLabelType(builder.build());
      }
    }
  }