private bool ParseFilterCondition()

in src/Microsoft.Health.Dicom.Core/Features/Query/QueryParser.cs [155:196]
32 lines of code
8 McCabe index (conditional complexity)

        private bool ParseFilterCondition(
            KeyValuePair<string, string> queryParameter,
            IEnumerable<QueryTag> queryTags,
            bool fuzzyMatching,
            out QueryFilterCondition condition)
        {
            condition = null;

            // parse tag
            if (!TryParseDicomAttributeId(queryParameter.Key, out DicomTag dicomTag))
            {
                return false;
            }

            // QueryTag could be either core or extended query tag.
            QueryTag queryTag = GetMatchingQueryTag(dicomTag, queryParameter.Key, queryTags);

            // check if tag is disabled
            if (queryTag.IsExtendedQueryTag && queryTag.ExtendedQueryTagStoreEntry.QueryStatus == QueryStatus.Disabled)
            {
                throw new QueryParseException(string.Format(DicomCoreResource.QueryIsDisabledOnAttribute, queryParameter.Key));
            }

            if (string.IsNullOrWhiteSpace(queryParameter.Value))
            {
                throw new QueryParseException(string.Format(DicomCoreResource.QueryEmptyAttributeValue, queryParameter.Key));
            }

            if (!ValueParsers.TryGetValue(queryTag.VR, out Func<QueryTag, string, QueryFilterCondition> valueParser))
            {
                return false;
            }

            condition = valueParser(queryTag, queryParameter.Value);
            if (fuzzyMatching && QueryLimit.IsValidFuzzyMatchingQueryTag(queryTag))
            {
                var s = condition as StringSingleValueMatchCondition;
                condition = new PersonNameFuzzyMatchCondition(s.QueryTag, s.Value);
            }

            return true;
        }