alibaba / NimoShake - 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).

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Conditional Complexity Overall

There are 234 units with 4,750 lines of code in units (83.4% of code).

1 very complex units (119 lines of code)
4 complex units (506 lines of code)
19 medium complex units (1,160 lines of code)
39 simple units (1,348 lines of code)
171 very simple units (1,617 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 sanitizeOptions() in nimo-shake/main/main.go	119	58	0
func PrepareFullSyncCkpt() in nimo-shake/checkpoint/manager.go	202	35	3
func() in nimo-shake/protocal/raw_converter.go	98	31	1
func() in nimo-shake/protocal/type_converter.go	103	31	1
func() in nimo-shake/incr-sync/syncer.go	103	27	1
func() in nimo-shake/incr-sync/fetcher.go	132	23	1
int main() in scripts/hypervisor.c	91	21	2
func() in nimo-shake/protocal/type_converter.go	83	21	1
func Start() in nimo-shake/run/run.go	87	19	0
func() in nimo-shake/full-sync/document-syncer.go	65	17	1
func checkTableExists() in nimo-shake/full-sync/syncer.go	63	16	2
func sanitizeOptions() in nimo-full-check/main/main.go	46	15	0
func CheckCkpt() in nimo-shake/checkpoint/manager.go	60	15	2
func() in nimo-full-check/checker/document-checker.go	60	14	1
func GetMetricWithSize() in nimo-shake/common/metric.go	37	14	1
func CheckSingleStream() in nimo-shake/checkpoint/manager.go	57	14	3
static int parseopt() in scripts/hypervisor.c	55	13	2
func BlockMongoUrlPassword() in nimo-shake/common/common.go	29	13	2
func MongodbIgnoreError() in nimo-shake/common/error.go	32	13	3
func FindFirstErrorIndexAndMessage() in nimo-shake/common/operator.go	39	12	1
func() in nimo-shake/incr-sync/syncer.go	69	12	1
func() in nimo-shake/incr-sync/syncer.go	54	12	1
func() in nimo-shake/writer/mongodb_community_driver.go	45	11	1
func() in nimo-shake/incr-sync/syncer.go	56	11	1
func() in nimo-shake/common/mongodb_mgo.go	29	10	1
func() in nimo-shake/common/metric.go	42	10	1
func DynamoIgnoreError() in nimo-shake/common/error.go	25	10	3
func() in nimo-shake/full-sync/table-syncer.go	72	10	1
func Start() in nimo-shake/full-sync/syncer.go	49	10	2
func() in nimo-shake/protocal/raw_converter.go	33	10	1
func() in nimo-shake/writer/dynamo_proxy.go	60	10	1
func() in nimo-shake/writer/mongodb_community_driver.go	57	10	1
func() in nimo-shake/incr-sync/syncer.go	48	10	1
func() in nimo-shake/checkpoint/fileWriter.go	46	10	1
func main() in nimo-shake/main/main.go	52	9	0
func() in nimo-shake/writer/mongodb_mgo_driver.go	38	9	1
func() in nimo-shake/writer/mongodb_mgo_driver.go	54	9	1
func() in nimo-full-check/checker/checker.go	41	8	1
func Start() in nimo-shake/incr-sync/syncer.go	50	8	2
func() in nimo-shake/incr-sync/syncer.go	21	8	1
func main() in nimo-full-check/main/main.go	27	7	0
func NewMongoConn() in nimo-shake/common/mongodb_mgo.go	29	7	3
func NewMongoCommunityConn() in nimo-shake/common/mongodb_community.go	30	7	3
func BuildShardTree() in nimo-shake/common/shard.go	36	7	3
func TraverseShard() in nimo-shake/common/shard.go	20	7	2
func CheckFcv() in nimo-shake/configure/check.go	25	7	2
func() in nimo-shake/writer/mongodb_mgo_driver.go	28	7	1
func() in nimo-shake/writer/mongodb_mgo_driver.go	29	7	1
func() in nimo-shake/writer/dynamo_proxy.go	34	7	1
func() in nimo-shake/writer/mongodb_community_driver.go	28	7	1