private static bool TryGetNetObjectFromAmqpObject()

in iothub/device/src/Transport/AmqpIot/AmqpIotMessageConverter.cs [336:425]
86 lines of code
30 McCabe index (conditional complexity)

        private static bool TryGetNetObjectFromAmqpObject(object amqpObject, MappingType mappingType, out object netObject)
        {
            netObject = null;
            if (amqpObject == null)
            {
                return true;
            }

            switch (SerializationUtilities.GetTypeId(amqpObject))
            {
                case PropertyValueType.Byte:
                case PropertyValueType.SByte:
                case PropertyValueType.Int16:
                case PropertyValueType.Int32:
                case PropertyValueType.Int64:
                case PropertyValueType.UInt16:
                case PropertyValueType.UInt32:
                case PropertyValueType.UInt64:
                case PropertyValueType.Single:
                case PropertyValueType.Double:
                case PropertyValueType.Boolean:
                case PropertyValueType.Decimal:
                case PropertyValueType.Char:
                case PropertyValueType.Guid:
                case PropertyValueType.DateTime:
                case PropertyValueType.String:
                    netObject = amqpObject;
                    break;

                case PropertyValueType.Unknown:
                    if (amqpObject is AmqpSymbol amqpSymbol)
                    {
                        netObject = amqpSymbol.Value;
                    }
                    else if (amqpObject is ArraySegment<byte>)
                    {
                        var binValue = (ArraySegment<byte>)amqpObject;
                        if (binValue.Count == binValue.Array.Length)
                        {
                            netObject = binValue.Array;
                        }
                        else
                        {
                            byte[] buffer = new byte[binValue.Count];
                            Buffer.BlockCopy(binValue.Array, binValue.Offset, buffer, 0, binValue.Count);
                            netObject = buffer;
                        }
                    }
                    else if (amqpObject is DescribedType describedType)
                    {
                        if (describedType.Descriptor is AmqpSymbol descriptorAmqpSymbol)
                        {
                            if (descriptorAmqpSymbol.Equals(UriName))
                            {
                                netObject = new Uri((string)describedType.Value);
                            }
                            else if (descriptorAmqpSymbol.Equals(TimeSpanName))
                            {
                                netObject = new TimeSpan((long)describedType.Value);
                            }
                            else if (descriptorAmqpSymbol.Equals(DateTimeOffsetName))
                            {
                                netObject = new DateTimeOffset(new DateTime((long)describedType.Value, DateTimeKind.Utc));
                            }
                        }
                    }
                    else if (mappingType == MappingType.ApplicationProperty)
                    {
                        throw FxTrace.Exception.AsError(new SerializationException(
                            IotHubApiResources.GetString(ApiResources.FailedToSerializeUnsupportedType, amqpObject.GetType().FullName)));
                    }
                    else if (amqpObject is AmqpMap map)
                    {
                        var dictionary = new Dictionary<string, object>();
                        foreach (KeyValuePair<MapKey, object> pair in map)
                        {
                            dictionary.Add(pair.Key.ToString(), pair.Value);
                        }

                        netObject = dictionary;
                    }
                    else
                    {
                        netObject = amqpObject;
                    }
                    break;
            }

            return netObject != null;
        }