public SymbolScanValidator(
            IValidationEntitiesContext validationContext,
            IValidatorStateService validatorStateService,
            ICoreSymbolPackageService packageService,
            ICriteriaEvaluator <SymbolPackage> criteriaEvaluator,
            IScanAndSignEnqueuer scanAndSignEnqueuer,
            IOptionsSnapshot <SymbolScanOnlyConfiguration> configurationAccessor,
            ILogger <ScanAndSignProcessor> logger)
        {
            _validationContext     = validationContext ?? throw new ArgumentNullException(nameof(validationContext));
            _validatorStateService = validatorStateService ?? throw new ArgumentNullException(nameof(validatorStateService));
            _symbolPackageService  = packageService ?? throw new ArgumentNullException(nameof(packageService));
            _criteriaEvaluator     = criteriaEvaluator ?? throw new ArgumentNullException(nameof(criteriaEvaluator));
            _scanAndSignEnqueuer   = scanAndSignEnqueuer ?? throw new ArgumentNullException(nameof(scanAndSignEnqueuer));

            if (configurationAccessor == null)
            {
                throw new ArgumentNullException(nameof(configurationAccessor));
            }
            if (configurationAccessor.Value == null)
            {
                throw new ArgumentException($"{nameof(configurationAccessor.Value)} property is null", nameof(configurationAccessor));
            }
            _configuration = configurationAccessor.Value;

            _logger = logger ?? throw new ArgumentNullException(nameof(logger));

            configurationAccessor = configurationAccessor ?? throw new ArgumentNullException(nameof(configurationAccessor));

            if (configurationAccessor.Value == null)
            {
                throw new ArgumentException($"{nameof(configurationAccessor.Value)} property is null", nameof(configurationAccessor));
            }

            _configuration = configurationAccessor.Value;
        }
 public SymbolEntityService(ICoreSymbolPackageService galleryEntityService, IEntityRepository <SymbolPackage> symbolsPackageRepository)
 {
     _galleryEntityService     = galleryEntityService ?? throw new ArgumentNullException(nameof(galleryEntityService));
     _symbolsPackageRepository = symbolsPackageRepository ?? throw new ArgumentNullException(nameof(symbolsPackageRepository));
 }