azure / Industrial-IoT - Conditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

Learn more...

Conditional Complexity Overall

There are 4,481 units with 84,720 lines of code in units (49.6% of code).

8 very complex units (2,961 lines of code)
36 complex units (4,667 lines of code)
194 medium complex units (16,229 lines of code)
417 simple units (15,879 lines of code)
3,826 very simple units (44,984 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
public async Task RunAsync() in src/Azure.IIoT.OpcUa.Publisher.Service.Sdk/cli/Program.cs	380	117	1
public virtual void WriteArray() in src/Azure.IIoT.OpcUa/src/Encoders/BaseAvroEncoder.cs	419	99	4
public delegate void UpdateNodeId() in src/Azure.IIoT.OpcUa.Publisher/src/Stack/Services/OpcUaMonitoredItem.cs	672	87	2
protected override BaseInstanceState FindChild() in src/Azure.IIoT.OpcUa.Publisher.Testing/src/Generated/Isa95Jobs/Design/UAModel.ISA95_JOBCONTROL_V2.Classes.cs	381	79	4
private void WriteVariantContents() in src/Azure.IIoT.OpcUa/src/Encoders/JsonEncoderEx.cs	253	75	3
public static void Main() in src/Azure.IIoT.OpcUa.Publisher.Module/cli/Program.cs	297	75	1
private async ValueTask SynchronizeMonitoredItemsAsync() in src/Azure.IIoT.OpcUa.Publisher/src/Stack/Services/OpcUaSubscription.cs	428	62	3
public Array? ReadArray() in src/Azure.IIoT.OpcUa/src/Encoders/JsonDecoderEx.cs	131	56	5
public override void PostConfigure() in src/Azure.IIoT.OpcUa.Publisher/src/Runtime/PublisherConfig.cs	241	50	2
public override void PostConfigure() in src/Azure.IIoT.OpcUa.Publisher/src/Stack/Runtime/OpcUaClientConfig.cs	269	47	2
private HistoryReadRequest CreateHistoryReadRequest() in src/Azure.IIoT.OpcUa.Publisher.Testing/src/HistoricalAccess/HistoricalAccessNodeManager.cs	143	45	4
private record struct EncodedMessage() in src/Azure.IIoT.OpcUa.Publisher/src/Services/NetworkMessageEncoder.cs	317	43	6
private async Task ManageSessionStateMachineAsync() in src/Azure.IIoT.OpcUa.Publisher/src/Stack/Services/OpcUaClient.cs	241	42	1
public static bool HasSameDataSet() in src/Azure.IIoT.OpcUa/src/Publisher/Extensions/PublishedNodesEntryModelEx.cs	162	38	2
public void WriteArray() in src/Azure.IIoT.OpcUa/src/Encoders/JsonEncoderEx.cs	126	36	4
protected Array? ReadArray() in src/Azure.IIoT.OpcUa/src/Encoders/BaseAvroDecoder.cs	80	36	4
public static string GetUniqueDataSetWriterId() in src/Azure.IIoT.OpcUa/src/Publisher/Extensions/PublishedNodesEntryModelEx.cs	151	36	2
public static DeviceTwinModel Patch() in src/Azure.IIoT.OpcUa.Publisher.Service/src/Services/Extensions/ApplicationRegistrationEx.cs	158	36	4
private void UpdateNodes() in src/Azure.IIoT.OpcUa.Publisher.Testing/src/Plc/PluginNodes/SlowFastCommon.cs	132	36	4
private Variant ReadVariantBody() in src/Azure.IIoT.OpcUa/src/Encoders/JsonDecoderEx.cs	98	35	2
protected virtual void WriteArray() in src/Azure.IIoT.OpcUa/src/Encoders/BaseAvroEncoder.cs	119	33	2
public static DeviceTwinModel Patch() in src/Azure.IIoT.OpcUa.Publisher.Service/src/Services/Extensions/EndpointRegistrationEx.cs	121	33	4
private static IEnumerable Parse() in src/Azure.IIoT.OpcUa.Publisher/src/Parser/RelativePathParser.cs	113	32	1
private void CopyToMatrixFlatArray() in src/Azure.IIoT.OpcUa/src/Encoders/JsonDecoderEx.cs	106	31	4
private FilterOperatorType GetFilterOperator() in src/Azure.IIoT.OpcUa.Publisher/src/Parser/FilterModelBuilder.cs	141	31	4
public async Task MethodCallAsync() in src/Azure.IIoT.OpcUa.Publisher/src/Services/NodeServices.cs	174	31	3
protected override BaseInstanceState FindChild() in src/Azure.IIoT.OpcUa.Publisher.Testing/src/Generated/Boiler/Design/Boiler.Classes.cs	128	30	4
public static bool IsSame() in src/Azure.IIoT.OpcUa/src/Publisher/Extensions/OpcNodeModelEx.cs	118	29	3
public async Task GetMetadataAsync() in src/Azure.IIoT.OpcUa.Publisher/src/Services/NodeServices.cs	176	29	3
public object GetRandom() in src/Azure.IIoT.OpcUa.Publisher.Testing/src/Utils/TestDataGenerator.cs	73	29	1
public Array GetRandomArray() in src/Azure.IIoT.OpcUa.Publisher.Testing/src/Utils/TestDataGenerator.cs	74	29	3
private Variant ReadVariantArrayBody() in src/Azure.IIoT.OpcUa/src/Encoders/JsonDecoderEx.cs	87	28	2
public static BuiltInType GetBuiltInType() in src/Azure.IIoT.OpcUa.Publisher/src/Stack/Models/AttributeMap.cs	56	28	1
public static bool IsInClass() in src/Azure.IIoT.OpcUa.Publisher/src/Stack/Transport/Extensions/NetworkInformationEx.cs	40	28	2
public EndpointConnectivityState ToConnectivityState() in src/Azure.IIoT.OpcUa.Publisher/src/Stack/Services/OpcUaClient.cs	59	28	2
private Variant GetRandomVariant() in src/Azure.IIoT.OpcUa.Publisher.Testing/src/Utils/TestDataGenerator.cs	71	28	2
private static void WriteFieldAsRawData() in src/Azure.IIoT.OpcUa/src/Encoders/PubSub/UadpDataSetMessage.cs	105	27	3
protected Variant ReadScalar() in src/Azure.IIoT.OpcUa/src/Encoders/BaseAvroDecoder.cs	93	27	2
internal static async Task ReadNodeStateAsync() in src/Azure.IIoT.OpcUa.Publisher/src/Stack/Extensions/SessionEx.cs	167	27	6
protected virtual void WriteScalar() in src/Azure.IIoT.OpcUa/src/Encoders/BaseAvroEncoder.cs	84	26	2
private static object? ReadRawScalar() in src/Azure.IIoT.OpcUa/src/Encoders/PubSub/UadpDataSetMessage.cs	58	26	2
public async Task ProcessDiscoveryEventsAsync() in src/Azure.IIoT.OpcUa.Publisher.Service/src/Services/ApplicationRegistry.cs	194	26	4
public override Exception Filter() in src/Azure.IIoT.OpcUa.Publisher.Module/src/Filters/RouterExceptionFilterAttribute.cs	80	26	2
protected override BaseInstanceState FindChild() in src/Azure.IIoT.OpcUa.Publisher.Testing/src/Generated/Boiler/Design/Boiler.Classes.cs	112	26	4
private Variant ReadVariantFromArray() in src/Azure.IIoT.OpcUa/src/Encoders/JsonDecoderEx.cs	100	25	2
private static RelativePathElement ParsePathElement() in src/Azure.IIoT.OpcUa.Publisher/src/Stack/Extensions/RelativePathEx.cs	101	25	2
private async Task BrowseAddressSpaceAsync() in src/Azure.IIoT.OpcUa.Publisher/src/Stack/Services/OpcUaClient.Browser.cs	195	25	2
public virtual bool IsEqual() in src/Azure.IIoT.OpcUa.Publisher.Testing/src/Generated/Isa95Jobs/Design/UAModel.ISA95_JOBCONTROL_V2.DataTypes.cs	25	25	1
internal override void Encode() in src/Azure.IIoT.OpcUa/src/Encoders/PubSub/MonitoredItemMessage.cs	106	24	4
internal override bool TryDecode() in src/Azure.IIoT.OpcUa/src/Encoders/PubSub/MonitoredItemMessage.cs	118	24	4