public Optional evaluate()

in java/com/google/gerrit/plugins/codeowners/backend/CodeOwnerSubmitRule.java [72:155]
72 lines of code
10 McCabe index (conditional complexity)

  public Optional<SubmitRecord> evaluate(ChangeData changeData) {
    try {
      requireNonNull(changeData, "changeData");

      if (changeData.change().isClosed()) {
        return Optional.empty();
      }

      try (Timer0.Context ctx = codeOwnerMetrics.runCodeOwnerSubmitRule.start()) {
        codeOwnerMetrics.countCodeOwnerSubmitRuleRuns.increment();
        logger.atFine().log(
            "run code owner submit rule (project = %s, change = %d)",
            changeData.project().get(), changeData.getId().get());

        if (codeOwnersPluginConfiguration
            .getProjectConfig(changeData.project())
            .isDisabled(changeData.change().getDest().branch())) {
          logger.atFine().log(
              "code owners functionality is disabled for branch %s", changeData.change().getDest());
          return Optional.empty();
        }

        return Optional.of(getSubmitRecord(changeData.notes()));
      }
    } catch (Exception e) {
      // Whether the exception should be treated as RULE_ERROR.
      // RULE_ERROR must only be returned if the exception is caused by user misconfiguration (e.g.
      // an invalid OWNERS file), but not for internal server errors.
      boolean isRuleError = false;

      String cause = e.getClass().getSimpleName();
      String errorMessage = "Failed to evaluate code owner statuses";
      if (changeData != null) {
        errorMessage +=
            String.format(
                " for patch set %d of change %d",
                changeData.currentPatchSet().id().get(), changeData.change().getId().get());
      }
      Optional<InvalidPathException> invalidPathException =
          CodeOwnersExceptionHook.getInvalidPathException(e);
      Optional<InvalidPluginConfigurationException> invalidPluginConfigurationException =
          CodeOwnersExceptionHook.getInvalidPluginConfigurationCause(e);
      Optional<InvalidCodeOwnerConfigException> invalidCodeOwnerConfigException =
          CodeOwners.getInvalidCodeOwnerConfigCause(e);
      if (invalidPathException.isPresent()) {
        isRuleError = true;
        cause = "invalid_path";
        errorMessage += String.format(" (cause: %s)", invalidPathException.get().getMessage());
      } else if (invalidPluginConfigurationException.isPresent()) {
        isRuleError = true;
        cause = "invalid_plugin_configuration";
        errorMessage +=
            String.format(" (cause: %s)", invalidPluginConfigurationException.get().getMessage());
      } else if (invalidCodeOwnerConfigException.isPresent()) {
        isRuleError = true;
        codeOwnerMetrics.countInvalidCodeOwnerConfigFiles.increment(
            invalidCodeOwnerConfigException.get().getProjectName().get(),
            invalidCodeOwnerConfigException.get().getRef(),
            invalidCodeOwnerConfigException.get().getCodeOwnerConfigFilePath());

        cause = "invalid_code_owner_config_file";
        errorMessage +=
            String.format(" (cause: %s)", invalidCodeOwnerConfigException.get().getMessage());

        Optional<String> invalidCodeOwnerConfigInfoUrl =
            codeOwnersPluginConfiguration
                .getProjectConfig(invalidCodeOwnerConfigException.get().getProjectName())
                .getInvalidCodeOwnerConfigInfoUrl();
        if (invalidCodeOwnerConfigInfoUrl.isPresent()) {
          errorMessage +=
              String.format(".\nFor help check %s", invalidCodeOwnerConfigInfoUrl.get());
        }
      }
      errorMessage += ".";

      if (isRuleError) {
        codeOwnerMetrics.countCodeOwnerSubmitRuleErrors.increment(cause);

        logger.atWarning().log("%s", errorMessage);
        return Optional.of(ruleError(errorMessage));
      }
      throw new CodeOwnersInternalServerErrorException(errorMessage, e);
    }
  }