twitter / stitchConditional 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 243 units with 5,086 lines of code in units (87.3% of code).

0 very complex units (0 lines of code)
4 complex units (466 lines of code)
15 medium complex units (934 lines of code)
16 simple units (355 lines of code)
208 very simple units (3,331 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
override def run[T2 <: T, V]() in src/main/scala/com/twitter/stitch/Arrow.scala	117	41	4
def join[A, B, C, D, E, F, G, H, I, J, K, L, M, N, O]() in src/main/scala/com/twitter/stitch/Arrow.scala	125	30	28
def join[A, B, C, D, E, F, G, H, I, J, K, L, M, N]() in src/main/scala/com/twitter/stitch/Arrow.scala	117	28	26
def join[A, B, C, D, E, F, G, H, I, J, K, L, M]() in src/main/scala/com/twitter/stitch/Arrow.scala	107	26	24
override def run[T2 <:() in src/main/scala/com/twitter/stitch/Arrow.scala	107	24	3
def join[A, B, C, D, E, F, G, H, I, J, K, L]() in src/main/scala/com/twitter/stitch/Arrow.scala	99	24	22
def handle[T, U >: T]() in src/main/scala/com/twitter/stitch/Arrow.scala	64	23	2
def join[A, B, C, D, E, F, G, H, I, J, K]() in src/main/scala/com/twitter/stitch/Arrow.scala	81	22	20
override def simplify() in src/main/scala/com/twitter/stitch/Stitch.scala	58	21	1
override def run[T2 <: Seq[T], V]() in src/main/scala/com/twitter/stitch/Arrow.scala	71	20	4
def join[A, B, C, D, E, F, G, H, I, J]() in src/main/scala/com/twitter/stitch/Arrow.scala	74	20	18
def join[A, B, C, D, E, F, G, H, I]() in src/main/scala/com/twitter/stitch/Arrow.scala	67	18	16
def join[A, B, C, D, E, F, G, H]() in src/main/scala/com/twitter/stitch/Arrow.scala	60	16	14
override def run[T2 <:() in src/main/scala/com/twitter/stitch/Arrow.scala	47	15	2
private[this] def isConstant() in src/main/scala/com/twitter/stitch/Arrow.scala	51	15	1
def join[A, B, C, D, E, F, G]() in src/main/scala/com/twitter/stitch/Arrow.scala	41	14	12
def fillBatch[K]() in src/main/scala/com/twitter/stitch/BatchPacking.scala	50	13	4
def join[A, B, C, D, E, F]() in src/main/scala/com/twitter/stitch/Arrow.scala	36	12	10
override def simplify() in src/main/scala/com/twitter/stitch/Stitch.scala	28	11	1
override def add[C, R]() in src/main/scala/com/twitter/stitch/Pending.scala	27	10	3
override def simplify() in src/main/scala/com/twitter/stitch/Stitch.scala	21	10	1
def join[A, B, C, D, E]() in src/main/scala/com/twitter/stitch/Arrow.scala	31	10	8
override def simplify() in src/main/scala/com/twitter/stitch/Stitch.scala	25	9	1
private[this] def simplifyAndPruneRoots() in src/main/scala/com/twitter/stitch/Pending.scala	23	8	0
def packBatches[K, B]() in src/main/scala/com/twitter/stitch/BatchPacking.scala	49	8	5
override def run[T2 <: T, V]() in src/main/scala/com/twitter/stitch/Arrow.scala	39	8	4
def join[A, B, C, D]() in src/main/scala/com/twitter/stitch/Arrow.scala	22	8	6
def collect[T, U]() in src/main/scala/com/twitter/stitch/Arrow.scala	14	8	2
override def runner() in src/main/scala/com/twitter/stitch/Stitch.scala	28	7	0
override def simplify() in src/main/scala/com/twitter/stitch/Stitch.scala	17	6	1
private[this] def isConstant() in src/main/scala/com/twitter/stitch/Arrow.scala	15	6	1
def applyPure() in src/main/scala/com/twitter/stitch/Arrow.scala	13	6	1
def applyPure() in src/main/scala/com/twitter/stitch/Arrow.scala	13	6	1
def applyPure() in src/main/scala/com/twitter/stitch/Arrow.scala	5	6	1
def join[A, B, C]() in src/main/scala/com/twitter/stitch/Arrow.scala	13	6	4
private[this] def pruneSatisfiedFutures() in src/main/scala/com/twitter/stitch/Pending.scala	14	5	0
def ref[T]() in src/main/scala/com/twitter/stitch/Stitch.scala	11	5	1
def add() in src/main/scala/com/twitter/stitch/Stitch.scala	11	5	1
override def simplify() in src/main/scala/com/twitter/stitch/Stitch.scala	11	5	1
override def simplify() in src/main/scala/com/twitter/stitch/Stitch.scala	11	5	1
def run() in src/main/scala/com/twitter/stitch/Runner.scala	22	5	0
def run() in src/main/scala/com/twitter/stitch/Runner.scala	19	5	0
override def run[T2 <: T, V]() in src/main/scala/com/twitter/stitch/Arrow.scala	16	5	4
override def run[V]() in src/main/scala/com/twitter/stitch/Arrow.scala	25	5	4
override def transform() in build.sbt	5	4	1
private[this] def loop() in src/main/scala/com/twitter/stitch/Pending.scala	13	4	0
private[this] def runNewBatches() in src/main/scala/com/twitter/stitch/Pending.scala	17	4	0
def sleep() in src/main/scala/com/twitter/stitch/Stitch.scala	14	4	1
private[stitch] def app[T, U]() in src/main/scala/com/twitter/stitch/Stitch.scala	6	4	2
override def simplify() in src/main/scala/com/twitter/stitch/Stitch.scala	9	4	1