ThingDescription.fromJson constructor

ThingDescription.fromJson(Map<String, dynamic> json)

Creates a ThingDescription from a json object.

Throws a FormatException if the Thing Description should not be valid.

Implementation

factory ThingDescription.fromJson(Map<String, dynamic> json) {
  final Set<String> parsedFields = {};

  final context = json.parseContext(parsedFields);
  final prefixMapping = context.prefixMapping;

  final atType =
      json.parseArrayField<String>("@type", parsedFields: parsedFields);
  final title = json.parseRequiredField<String>("title", parsedFields);
  final titles = json.parseMapField<String>("titles", parsedFields);
  final description = json.parseField<String>("description", parsedFields);
  final descriptions =
      json.parseMapField<String>("descriptions", parsedFields);
  final version = json.parseVersionInfo(prefixMapping, parsedFields);
  final created = json.parseDateTime("created", parsedFields);
  final modified = json.parseDateTime("modified", parsedFields);
  final support = json.parseUriField("support", parsedFields);
  final base = json.parseUriField("base", parsedFields);
  final id = json.parseField<String>("id", parsedFields);

  final security = json.parseRequiredArrayField<String>(
    "security",
    parsedFields: parsedFields,
    minimalSize: 1,
  );

  final securityDefinitions =
      json.parseSecurityDefinitions(prefixMapping, parsedFields);

  final forms = json.parseForms(prefixMapping, parsedFields);
  // TODO: Move somewhere else
  // TODO: Validate correct use of op-values
  forms?.forEach((form) {
    if (form.op == null) {
      throw const FormatException('Missing "op" field in thing-level form.');
    }
  });

  final properties = json.parseProperties(prefixMapping, parsedFields);
  final actions = json.parseActions(prefixMapping, parsedFields);
  final events = json.parseEvents(prefixMapping, parsedFields);

  final links = json.parseLinks(prefixMapping, parsedFields);

  final profile = json.parseUriArrayField(
    "profile",
    parsedFields: parsedFields,
    minimalSize: 1,
  );
  final schemaDefinitions = json.parseDataSchemaMapField(
    "schemaDefinitions",
    prefixMapping,
    parsedFields,
  );
  final uriVariables = json.parseDataSchemaMapField(
    "uriVariables",
    prefixMapping,
    parsedFields,
  );
  final additionalFields =
      json.parseAdditionalFields(prefixMapping, parsedFields);

  return ThingDescription(
    context: context,
    title: title,
    titles: titles,
    description: description,
    descriptions: descriptions,
    version: version,
    created: created,
    modified: modified,
    support: support,
    base: base,
    id: id,
    forms: forms,
    properties: properties,
    actions: actions,
    events: events,
    links: links,
    profile: profile,
    schemaDefinitions: schemaDefinitions,
    uriVariables: uriVariables,
    additionalFields: additionalFields,
    security: security,
    securityDefinitions: securityDefinitions,
    atType: atType,
  );
}