• There are 87 files with units, with 8,386 lines of code.
• 1 very complex files (McCabe index sum 251+; 1,447 lines of code)
• 0 complex files (McCabe index sum 126-250; 0 lines of code)
• 1 medium complex files (McCabe index sum 51-125; 449 lines of code)
• 6 slightly complex files (McCabe index sum 26-50; 966 lines of code)
• 79 simple files (McCabe index sum 1-25; 5,524 lines of code)
• 26 main files have no units (e.g. languages without unit analysis, or files without functions) and are not classified.

The McCabe index of a file grows with its size: per 100 lines tells a large but plain file from a dense one, and most complex unit whether the complexity sits in one unit or is spread over many.

File	# lines	# units	McCabe index (sum)	per 100 lines	most complex unit
EventFilterLexer.java in netflix-infix/src/main/java/com/netflix/infix/lang/infix/antlr	1447	41	282	19	77
EventBusImpl.java in netflix-eventbus/src/main/java/com/netflix/eventbus/impl	449	29	81	18	10
EventConsumer.java in netflix-eventbus/src/main/java/com/netflix/eventbus/impl	262	21	49	19	10
Histogram.java in netflix-statistics/src/main/java/com/netflix/stats/distribution	184	16	41	22	9
HashCode.java in netflix-commons-util/src/main/java/com/netflix/util	126	24	39	31	4
AbstractEventBusBridge.java in netflix-eventbus-bridge/src/main/java/com/netflix/eventbus/bridge	150	23	31	21	3
NumericValuePredicate.java in netflix-infix/src/main/java/com/netflix/infix	138	19	30	22	8
TimeStringValuePredicate.java in netflix-infix/src/main/java/com/netflix/infix	106	9	28	26	16
TimeRangeValuePredicate.java in netflix-infix/src/main/java/com/netflix/infix	105	8	24	23	13
TimeMillisValuePredicate.java in netflix-infix/src/main/java/com/netflix/infix	88	8	23	26	13
AgeBatchingQueue.java in netflix-eventbus/src/main/java/com/netflix/eventbus/impl	155	14	21	14	4
SubscriberValidator.java in netflix-eventbus/src/main/java/com/netflix/eventbus/impl	101	2	21	21	17
SyncSubscribersGatekeeper.java in netflix-eventbus/src/main/java/com/netflix/eventbus/spi	119	5	20	17	6
Distribution.java in netflix-statistics/src/main/java/com/netflix/stats/distribution	86	11	20	23	4
DataBuffer.java in netflix-statistics/src/main/java/com/netflix/stats/distribution	84	10	20	24	9
RegexValuePredicate.java in netflix-infix/src/main/java/com/netflix/infix	80	7	19	24	8
AbstractEventBusStats.java in netflix-eventbus/src/main/java/com/netflix/eventbus/impl	120	16	19	16	3
PathValueEventFilter.java in netflix-infix/src/main/java/com/netflix/infix	71	7	18	25	10
XPathValuePredicate.java in netflix-infix/src/main/java/com/netflix/infix	70	7	18	26	10
EventBusUtils.java in netflix-eventbus/src/main/java/com/netflix/eventbus/utils	130	10	18	14	5
DataDistribution.java in netflix-statistics/src/main/java/com/netflix/stats/distribution	94	14	18	19	4
PathExistsEventFilter.java in netflix-infix/src/main/java/com/netflix/infix	57	6	14	25	7
InfixEventFilter.java in netflix-eventbus/src/main/java/com/netflix/eventbus/filter/lang/infix	56	8	14	25	6
BooleanValuePredicate.java in netflix-infix/src/main/java/com/netflix/infix	54	6	13	24	7
StringValuePredicate.java in netflix-infix/src/main/java/com/netflix/infix	52	6	13	25	7
OrPredicate.java in netflix-infix/src/main/java/com/netflix/infix	42	6	12	29	6
AndPredicate.java in netflix-infix/src/main/java/com/netflix/infix	42	6	12	29	6
DataPublisher.java in netflix-statistics/src/main/java/com/netflix/stats/distribution	63	8	12	19	3
EqualityComparisonBaseTreeNode.java in netflix-infix/src/main/java/com/netflix/infix/lang/infix/antlr	53	3	11	21	9
NotPredicate.java in netflix-infix/src/main/java/com/netflix/infix	39	5	11	28	6
Pair.java in netflix-commons-util/src/main/java/com/netflix/util	41	7	11	27	5
MeasuredRate.java in netflix-commons-util/src/main/java/com/netflix/util	50	7	10	20	3
EventFilterParser.java in netflix-infix/src/main/java/com/netflix/infix/lang/infix/antlr	2210	7	8	0	2
Predicates.java in netflix-infix/src/main/java/com/netflix/infix	27	8	8	30	1
SizeAndAgeBatchingQueue.java in netflix-eventbus/src/main/java/com/netflix/eventbus/impl	50	4	8	16	4
ComparableTreeNode.java in netflix-infix/src/main/java/com/netflix/infix/lang/infix/antlr	50	4	7	14	4
RxEventBus.java in netflix-eventbus-rx/src/main/java/com/netflix/eventbus/rx	86	5	7	8	2
AlwaysFalseEventFilter.java in netflix-eventbus/src/main/java/com/netflix/eventbus/filter	34	7	7	21	1
AlwaysTrueEventFilter.java in netflix-eventbus/src/main/java/com/netflix/eventbus/filter	32	7	7	22	1
TimeStringValueTreeNode.java in netflix-infix/src/main/java/com/netflix/infix/lang/infix/antlr	24	6	6	25	1
CatchAllSubscriber.java in netflix-eventbus/src/main/java/com/netflix/eventbus/spi	27	4	6	22	3
ImmutableEventBusBridgeStats.java in netflix-eventbus-bridge/src/main/java/com/netflix/eventbus/bridge	27	6	6	22	1
TimeMillisValueTreeNode.java in netflix-infix/src/main/java/com/netflix/infix/lang/infix/antlr	21	5	5	24	1
OrTreeNode.java in netflix-infix/src/main/java/com/netflix/infix/lang/infix/antlr	35	5	5	14	1
FalseValueTreeNode.java in netflix-infix/src/main/java/com/netflix/infix/lang/infix/antlr	24	5	5	21	1
AlwaysFalsePredicate.java in netflix-infix/src/main/java/com/netflix/infix	23	5	5	22	1
AlwaysTruePredicate.java in netflix-infix/src/main/java/com/netflix/infix	23	5	5	22	1
NullValuePredicate.java in netflix-infix/src/main/java/com/netflix/infix	24	5	5	21	1
ThrowableExceptionMapper.java in netflix-jersey-guice/src/main/java/com/netflix/jersey/guice/providers/exception	36	2	5	14	4
DefaultConsumerQueueSupplier.java in netflix-eventbus/src/main/java/com/netflix/eventbus/impl	48	1	5	10	5

• File complexity is the sum of the McCabe indexes (conditional complexity) of the units (methods, functions...) in a file.
• Files are classified in five categories based on that sum: 1-25 (simple files), 26-50 (slightly complex files), 51-125 (medium complex files), 126-250 (complex files), 251+ (very complex files). The default bands are five times the unit complexity bands, as a file is a group of units.
• Only main code files with units are classified. Files without units (languages without unit analysis, or files without functions) have no complexity to measure and are left out rather than counted as simple.
• A very complex file holds many decisions, which often means it has too many responsibilities: a candidate to split, and a place where changes need more testing.