Uber / aresdbConditional 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 2,787 units with 37,216 lines of code in units (65.0% of code).

1 very complex units (546 lines of code)
16 complex units (1,781 lines of code)
118 medium complex units (7,187 lines of code)
248 simple units (7,874 lines of code)
2,404 very simple units (19,828 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 query/context/query_context_helper.go	546	134	1
func() in memstore/common/upsert_batch_builder.go	132	48	1
func() in query/expr/scanner.go	86	36	1
int bindGeneric() in query/binder.hpp	150	36	1
func() in client/connector.go	136	36	1
func ReadRequest() in api/common/request.go	103	34	3
func() in memstore/ingestion.go	102	33	1
func() in memstore/common/data_value.go	105	33	1
func() in metastore/validator.go	83	32	1
func() in memstore/ingestion.go	142	30	1
func ValueFromString() in memstore/common/data_value.go	147	30	2
func() in broker/query_plan_non_agg.go	122	29	1
func NewDataType() in memstore/common/data_type.go	35	28	1
func GetDataValue() in memstore/common/data_value.go	129	28	3
func() in subscriber/common/job/controller.go	127	28	1
func() in query/expr/parser.go	93	27	1
func() in datanode/datanode.go	89	26	1
func() in query/aql_compiler.go	85	25	1
func() in broker/result_merge.go	87	24	1
func parseTimeFilterExpression() in query/common/time_filter.go	92	24	2
func parseOldTimeseriesHLLResult() in query/common/hll.go	110	24	2
func() in query/aql_compiler.go	99	24	1
func() in metastore/validator.go	55	24	1
func() in datanode/bootstrap/bootstrap_server.go	139	23	1
func parseTimeseriesHLLResult() in query/common/hll.go	106	23	2
func() in query/aql_compiler.go	81	23	1
func() in memstore/common/data_value.go	84	22	1
func shouldSkipLiveBatchWithFilter() in query/aql_processor.go	63	22	2
func() in api/debug_handler.go	95	21	1
int bind() in query/binder.hpp	101	21	0
func() in query/sql/sql_parser.go	57	21	1
func() in controller/tasks/etcd/ingestion_assignment.go	93	20	1
func() in memstore/schema.go	87	19	1
func formatTimeDimension() in query/common/dimval.go	60	19	3
func traverseRecursive() in query/common/hll.go	91	19	8
func readUpsertBatch() in memstore/common/upsert_batch.go	79	18	1
func() in memstore/backfill.go	127	18	1
func() in memstore/vector_party.go	86	18	1
func() in redolog/kafka_redolog_manager.go	68	18	1
result_type operator() in query/functor.hpp	24	18	0
func() in query/aql_processor.go	88	18	1
func() in query/aql_processor.go	86	18	1
func() in query/aql_processor.go	54	18	1
func parseAbsoluteTime() in query/common/time_filter.go	80	18	3
func ReadDimension() in query/common/dimval.go	56	18	7
func() in query/time_series_aggregate.go	89	18	1
func() in query/aql_compiler.go	53	18	1
func() in query/aql_compiler.go	79	18	1
func ConvertValueForType() in memstore/common/data_type.go	42	17	2
func() in memstore/list/archive_vector_party.go	70	17	1