private static List resolveAttribute()

in scim-server/src/main/java/org/apache/directory/scim/server/rest/BulkResourceImpl.java [605:660]
46 lines of code
17 McCabe index (conditional complexity)

  private static List<UnresolvedComplex> resolveAttribute(List<UnresolvedComplex> unresolveds, Object attributeValue, Schema.Attribute attribute, Map<String, BulkOperation> bulkIdKeyToOperationResult) throws UnresolvableOperationException {
    if (attributeValue == null) {
      return unresolveds;
    }
    Set<Schema.Attribute> attributes = attribute.getAttributes();

    for (Schema.Attribute subAttribute : attributes) {
      Schema.AttributeAccessor accessor = subAttribute.getAccessor();

      if (subAttribute.isScimResourceIdReference()) {
        // TODO - This will fail if field is a char or Character array
        String bulkIdKey = accessor.get(attributeValue);

        if (bulkIdKey != null && bulkIdKey.startsWith("bulkId:")) {
          log.debug("Found bulkId: {}", bulkIdKey);
          if (bulkIdKeyToOperationResult.containsKey(bulkIdKey)) {
            BulkOperation resolvedOperationResult = bulkIdKeyToOperationResult.get(bulkIdKey);
            BaseResource response = resolvedOperationResult.getResponse();
            ScimResource resolvedResource = resolvedOperationResult.getData();

            if ((response == null || !(response instanceof ErrorResponse)) && resolvedResource != null && resolvedResource.getId() != null) {
              String resolvedId = resolvedResource.getId();

              accessor.set(attributeValue, resolvedId);
            } else {
              UnresolvedComplex unresolved = new UnresolvedComplex(attributeValue, accessor, bulkIdKey);

              unresolveds.add(unresolved);
            }
          } else {
            throw new UnresolvableOperationException(String.format(BULK_ID_DOES_NOT_EXIST, bulkIdKey));
          }
        }
      } else if (subAttribute.getType() == Schema.Attribute.Type.COMPLEX) {
        Object subFieldValue = accessor.get(attributeValue);

        if (subFieldValue != null) {
          Class<?> subFieldClass = subFieldValue.getClass();
          boolean isCollection = Collection.class.isAssignableFrom(subFieldClass);

          if (isCollection || subFieldClass.isArray()) {
            @SuppressWarnings("unchecked")
            Collection<Object> subFieldValues = isCollection ? (Collection<Object>) subFieldValue : Arrays.asList((Object[]) subFieldValue);

            for (Object subArrayFieldValue : subFieldValues) {
              resolveAttribute(unresolveds, subArrayFieldValue, subAttribute, bulkIdKeyToOperationResult);
            }
          } else {
            resolveAttribute(unresolveds, subFieldValue, subAttribute, bulkIdKeyToOperationResult);
          }
        }
      }
    }
    log.debug("Resolved attribute had {} unresolved fields", unresolveds.size());
    return unresolveds;
  }