private static TopicDescription ParseFromEntryElement()

in sdk/servicebus/Microsoft.Azure.ServiceBus/src/Management/TopicDescriptionExtensions.cs [63:155]
86 lines of code
30 McCabe index (conditional complexity)

        private static TopicDescription ParseFromEntryElement(XElement xEntry)
        {
            var name = xEntry.Element(XName.Get("title", ManagementClientConstants.AtomNamespace)).Value;
            var tdXml = xEntry.Element(XName.Get("content", ManagementClientConstants.AtomNamespace))?
                .Element(XName.Get("TopicDescription", ManagementClientConstants.ServiceBusNamespace));

            if (tdXml == null)
            {
                throw new MessagingEntityNotFoundException("Topic was not found");
            }

            var topicDesc = new TopicDescription(name);
            foreach (var element in tdXml.Elements())
            {
                switch (element.Name.LocalName)
                {
                    case "DefaultMessageTimeToLive":
                        topicDesc.DefaultMessageTimeToLive = XmlConvert.ToTimeSpan(element.Value);
                        break;
                    case "MaxSizeInMegabytes":
                        topicDesc.MaxSizeInMB = long.Parse(element.Value);
                        break;
                    case "RequiresDuplicateDetection":
                        topicDesc.RequiresDuplicateDetection = bool.Parse(element.Value);
                        break;
                    case "DuplicateDetectionHistoryTimeWindow":
                        topicDesc.duplicateDetectionHistoryTimeWindow = XmlConvert.ToTimeSpan(element.Value);
                        break;
                    case "EnableBatchedOperations":
                        topicDesc.EnableBatchedOperations = bool.Parse(element.Value);
                        break;
                    case "FilteringMessagesBeforePublishing":
                        topicDesc.FilteringMessagesBeforePublishing = bool.Parse(element.Value);
                        break;
                    case "IsAnonymousAccessible":
                        topicDesc.IsAnonymousAccessible = bool.Parse(element.Value);
                        break;
                    case "AuthorizationRules":
                        topicDesc.AuthorizationRules = AuthorizationRules.ParseFromXElement(element);
                        break;
                    case "Status":
                        topicDesc.Status = (EntityStatus)Enum.Parse(typeof(EntityStatus), element.Value);
                        break;
                    case "ForwardTo":
                        if (!string.IsNullOrWhiteSpace(element.Value))
                        {
                            topicDesc.ForwardTo = element.Value;
                        }
                        break;
                    case "UserMetadata":
                        topicDesc.UserMetadata = element.Value;
                        break;
                    case "SupportOrdering":
                        topicDesc.SupportOrdering = bool.Parse(element.Value);
                        break;
                    case "AutoDeleteOnIdle":
                        topicDesc.AutoDeleteOnIdle = XmlConvert.ToTimeSpan(element.Value);
                        break;
                    case "EnablePartitioning":
                        topicDesc.EnablePartitioning = bool.Parse(element.Value);
                        break;
                    case "EnableSubscriptionPartitioning":
                        topicDesc.EnableSubscriptionPartitioning = bool.Parse(element.Value);
                        break;
                    case "EnableExpress":
                        topicDesc.EnableExpress = bool.Parse(element.Value);
                        break;
                    case "AccessedAt":
                    case "CreatedAt":
                    case "MessageCount":
                    case "SizeInBytes":
                    case "UpdatedAt":
                    case "CountDetails":
                    case "SubscriptionCount":
                    case "EntityAvailabilityStatus":
                    case "SkippedUpdate":
                        // Ignore known properties
                        // Do nothing
                        break;
                    default:
                        // For unknown properties, keep them as-is for forward proof.
                        if (topicDesc.UnknownProperties == null)
                        {
                            topicDesc.UnknownProperties = new List<object>();
                        }

                        topicDesc.UnknownProperties.Add(element);
                        break;
                }
            }

            return topicDesc;
        }