netflix / atlas - 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 2,114 units with 18,732 lines of code in units (61.9% of code).

0 very complex units (0 lines of code)
1 complex units (211 lines of code)
39 medium complex units (1,506 lines of code)
137 simple units (2,787 lines of code)
1,937 very simple units (14,228 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 createLogic() in atlas-eval/src/main/scala/com/netflix/atlas/eval/stream/FinalExprEval.scala	211	27	1
private def parse() in atlas-eval/src/main/scala/com/netflix/atlas/eval/model/LwcMessages.scala	50	24	1
override def createLogic() in atlas-eval/src/main/scala/com/netflix/atlas/eval/stream/LwcToAggrDatapoint.scala	98	24	1
override def createLogic() in atlas-eval/src/main/scala/com/netflix/atlas/eval/stream/TimeGrouped.scala	119	22	1
def bounds() in atlas-chart/src/main/scala/com/netflix/atlas/chart/model/PlotDef.scala	57	21	2
override def createImage() in atlas-chart/src/main/scala/com/netflix/atlas/chart/DefaultGraphEngine.scala	153	21	1
def merge[T]() in atlas-core/src/main/scala/com/netflix/atlas/core/util/ArrayHelper.scala	52	18	3
def simplify() in atlas-core/src/main/scala/com/netflix/atlas/core/model/Query.scala	19	17	2
def durationRange() in atlas-core/src/main/scala/com/netflix/atlas/core/util/UnitPrefix.scala	21	17	1
def sizeOf() in atlas-core/src/main/scala/com/netflix/atlas/core/model/Block.scala	17	16	1
private def findImpl() in atlas-core/src/main/scala/com/netflix/atlas/core/index/SimpleTagIndex.scala	34	16	1
override def draw() in atlas-chart/src/main/scala/com/netflix/atlas/chart/graphics/TimeSeriesGraph.scala	66	16	5
private def simplify() in atlas-lwcapi/src/main/scala/com/netflix/atlas/lwcapi/ExpressionSplitter.scala	19	16	1
def apply() in atlas-core/src/main/scala/com/netflix/atlas/core/algorithm/OnlineAlgorithm.scala	18	15	1
def time() in atlas-chart/src/main/scala/com/netflix/atlas/chart/graphics/Ticks.scala	36	15	4
private def handleReq() in atlas-webapi/src/main/scala/com/netflix/atlas/webapi/TagsApi.scala	21	15	1
private def toWhere() in atlas-postgres/src/main/scala/com/netflix/atlas/postgres/SqlUtils.scala	18	15	2
private def estimatePercentiles() in atlas-core/src/main/scala/com/netflix/atlas/core/model/MathExpr.scala	63	14	3
def merge() in atlas-core/src/main/scala/com/netflix/atlas/core/util/ArrayHelper.scala	39	14	1
private def tag() in atlas-core/src/main/scala/com/netflix/atlas/core/index/RoaringTagIndex.scala	21	14	2
def find() in atlas-core/src/main/scala/com/netflix/atlas/core/index/TaggedItemIndex.scala	18	14	2
def create() in atlas-eval/src/main/scala/com/netflix/atlas/eval/graph/Grapher.scala	82	14	2
private[events] def toDouble() in atlas-lwc-events/src/main/scala/com/netflix/atlas/lwc/events/DatapointConverter.scala	15	13	2
def forRange() in atlas-core/src/main/scala/com/netflix/atlas/core/util/UnitPrefix.scala	16	13	2
def binaryRange() in atlas-core/src/main/scala/com/netflix/atlas/core/util/UnitPrefix.scala	15	13	2
private def encodeBatchImpl() in atlas-eval/src/main/scala/com/netflix/atlas/eval/model/LwcMessages.scala	84	13	2
private def parseAtDuration() in atlas-core/src/main/scala/com/netflix/atlas/core/util/Strings.scala	16	12	2
def toString() in atlas-core/src/main/scala/com/netflix/atlas/core/util/Strings.scala	10	12	1
def logLinear() in atlas-chart/src/main/scala/com/netflix/atlas/chart/graphics/Ticks.scala	35	12	3
private def parseBatch() in atlas-eval/src/main/scala/com/netflix/atlas/eval/model/LwcMessages.scala	76	12	1
private def escapeAndPut() in atlas-postgres/src/main/scala/com/netflix/atlas/postgres/TextCopyBuffer.scala	23	12	1
private def hexToInt() in atlas-core/src/main/scala/com/netflix/atlas/core/model/ItemId.scala	8	11	1
private def hexValue() in atlas-core/src/main/scala/com/netflix/atlas/core/util/Strings.scala	6	11	1
def findValues() in atlas-core/src/main/scala/com/netflix/atlas/core/index/RoaringTagIndex.scala	39	11	1
private def readGraphDef() in atlas-chart/src/main/scala/com/netflix/atlas/chart/JsonCodec.scala	42	11	1
def draw() in atlas-chart/src/main/scala/com/netflix/atlas/chart/graphics/TimeSeriesStack.scala	35	11	5
private def durationLabelFormat() in atlas-chart/src/main/scala/com/netflix/atlas/chart/graphics/Ticks.scala	10	11	2
private def keyValues() in atlas-eval/src/main/scala/com/netflix/atlas/eval/graph/SimpleLegends.scala	14	11	1
private def parseExpr() in atlas-eval/src/main/scala/com/netflix/atlas/eval/stream/LwcToAggrDatapoint.scala	21	11	2
private def normalizeStat() in atlas-webapi/src/main/scala/com/netflix/atlas/webapi/ExprApi.scala	20	11	1
def matches() in atlas-lwc-events/src/main/scala/com/netflix/atlas/lwc/events/ExprUtils.scala	11	10	2
def compress() in atlas-core/src/main/scala/com/netflix/atlas/core/model/Block.scala	39	10	1
private def intValue() in atlas-core/src/main/scala/com/netflix/atlas/core/model/Block.scala	9	10	1
private def normalize() in atlas-core/src/main/scala/com/netflix/atlas/core/util/IsoDateTimeParser.scala	13	10	1
private def isLarge() in atlas-core/src/main/scala/com/netflix/atlas/core/util/UnitPrefix.scala	11	10	1
def binary() in atlas-core/src/main/scala/com/netflix/atlas/core/util/UnitPrefix.scala	9	10	1
def duration() in atlas-core/src/main/scala/com/netflix/atlas/core/util/UnitPrefix.scala	11	10	1
def update() in atlas-core/src/main/scala/com/netflix/atlas/core/db/BlockStore.scala	31	10	3
private def decimalTicks() in atlas-chart/src/main/scala/com/netflix/atlas/chart/graphics/Ticks.scala	44	10	6
private def sort() in atlas-eval/src/main/scala/com/netflix/atlas/eval/graph/Grapher.scala	30	10	5