Uber / cadenceConditional 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).

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Conditional Complexity Overall

There are 14,073 units with 171,551 lines of code in units (78.6% of code).

5 very complex units (1,052 lines of code)
29 complex units (3,769 lines of code)
304 medium complex units (22,046 lines of code)
752 simple units (27,583 lines of code)
12,983 very simple units (117,101 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
func() in service/history/execution/state_builder.go	364	96	1
func() in common/domain/archivalConfigStateMachine.go	128	70	1
func parseWorkflowExecutionInfo() in common/persistence/nosql/nosqlplugin/cassandra/workflow_parsing_utils.go	143	65	1
func GetSizeOfHistoryEvent() in common/util.go	118	58	1
func() in service/history/decision/handler.go	299	53	1
func FromHistoryEvent() in common/types/mapper/proto/api.go	182	44	1
func ToHistoryEvent() in common/types/mapper/proto/api.go	140	44	1
func FromEventType() in common/types/mapper/thrift/shared.go	134	44	1
func ToEventType() in common/types/mapper/thrift/shared.go	134	44	1
func() in common/types/shared.go	137	44	1
func() in common/types/shared.go	90	43	1
func getEventAttributes() in tools/cli/utils.go	88	41	1
func() in common/domain/handler.go	180	39	1
func() in service/frontend/api/handler.go	205	39	1
func ValidateConflictResolveWorkflowModeState() in common/persistence/operationModeValidator.go	114	37	4
func() in service/history/engine/engineimpl/historyEngine.go	137	37	1
func() in common/persistence/workflowExecutionInfo.go	101	36	1
func() in common/config/persistence.go	110	35	1
func() in common/archiver/gcloud/queryParser.go	95	33	1
func() in service/history/decision/checker.go	125	33	1
func ToError() in common/types/mapper/proto/errors.go	135	32	1
func() in service/history/engine/engineimpl/historyEngine.go	202	32	1
func executionManagerTags() in common/persistence/wrappers/errorinjectors/utils.go	63	30	1
func() in service/history/task/transfer_active_task_executor.go	186	30	1
func() in service/frontend/api/handler.go	135	29	1
func() in service/history/task/timer_active_task_executor.go	138	29	1
func() in service/history/engine/engineimpl/historyEngine.go	159	29	1
func() in cmd/server/cadence/server.go	181	28	1
func GenerateReport() in tools/cli/admin_elastic_search_commands.go	118	27	1
func() in common/elasticsearch/esql/select.go	99	27	1
func() in host/taskpoller.go	149	26	1
func() in common/archiver/filestore/queryParser.go	80	26	1
func() in common/archiver/s3store/queryParser.go	80	26	1
func GetTransferTaskMetricsScope() in service/history/task/task_util.go	72	26	2
func FromDecisionTaskFailedCause() in common/types/mapper/proto/api.go	54	25	1
func ToDecisionTaskFailedCause() in common/types/mapper/proto/api.go	53	25	1
func FromDecisionTaskFailedCause() in common/types/mapper/thrift/shared.go	77	25	1
func ToDecisionTaskFailedCause() in common/types/mapper/thrift/shared.go	77	25	1
func() in common/types/shared.go	80	25	1
func() in common/elasticsearch/esql/aggregation.go	89	25	1
func() in service/history/execution/mutable_state_builder.go	75	25	1
func() in common/types/shared.go	52	24	1
func executeUpdateWorkflowBatchTransaction() in common/persistence/nosql/nosqlplugin/cassandra/workflow_utils.go	91	24	5
func() in common/elasticsearch/esql/select.go	94	24	1
func() in service/frontend/api/handler.go	135	24	1
func() in service/history/execution/context.go	161	24	1
func() in service/history/engine/engineimpl/historyEngine.go	118	24	1
func ResetInBatch() in tools/cli/workflow_commands.go	116	23	1
func FromError() in common/types/mapper/proto/errors.go	77	23	1
func FromError() in common/types/mapper/thrift/errors.go	51	23	1