private void processRepoSettings(){
    repoSettings = new ArrayList<>();
    if (setting != null){
      Set<HashMap<String, String>> settingValue = setting.getSettingValue(Setting.SETTING_NAME_REPOSITORY_SETTINGS);
      for (Map<String, String> setting : settingValue) {
        RepositorySetting rs = parseRepositorySetting(setting);
        repoSettings.add(rs);
      }
    }
  }
Parse stack repo info stored in the blueprint_settings table
@return set of repositories
ambari-server/src/main/java/org/apache/ambari/server/topology/BlueprintImpl.java