netflix / maestro - 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 2,645 units with 32,116 lines of code in units (65.7% of code).

1 very complex units (442 lines of code)
14 complex units (1,285 lines of code)
63 medium complex units (3,462 lines of code)
147 simple units (4,918 lines of code)
2,420 very simple units (22,009 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
private int jjMoveNfa_0() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParserTokenManager.java	442	195	2
private int jjMoveStringLiteralDfa1_0() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParserTokenManager.java	91	47	2
private int jjMoveStringLiteralDfa0_0() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParserTokenManager.java	108	46	0
public final void ForStatement() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	101	44	0
private final int jjStopStringLiteralDfa_0() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParserTokenManager.java	100	39	3
public final ASTExecute Execute() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	93	38	0
public final void Block() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	73	35	0
private boolean doExecute() in maestro-engine/src/main/java/com/netflix/maestro/engine/tasks/MaestroTask.java	139	34	5
private int jjMoveStringLiteralDfa3_0() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParserTokenManager.java	59	31	4
public final void PrimarySuffix() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	140	29	0
public final void Statement() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	96	29	0
private int jjMoveStringLiteralDfa2_0() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParserTokenManager.java	63	28	4
private int jjMoveStringLiteralDfa4_0() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParserTokenManager.java	59	28	4
public Token getNextToken() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParserTokenManager.java	102	27	0
public static Optional checkProgress() in maestro-engine/src/main/java/com/netflix/maestro/engine/utils/TaskHelper.java	61	26	4
private int jjMoveStringLiteralDfa5_0() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParserTokenManager.java	50	25	2
public static void deriveTaskStatus() in maestro-engine/src/main/java/com/netflix/maestro/engine/utils/TaskHelper.java	50	24	2
public final void ArrayInitializer() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	76	24	0
public final void UnaryExpression() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	94	24	0
static final int hexval() in netflix-sel/src/main/java/com/netflix/sel/ast/JavaCharStream.java	43	23	1
public final void Expression() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	59	22	0
public final void BlockStatement() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	37	22	0
public final void AllocationExpression() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	98	21	0
private Map castValuesWithListToArray() in maestro-common/src/main/java/com/netflix/maestro/models/parameter/MapParameter.java	63	19	3
public SelType binaryOps() in netflix-sel/src/main/java/com/netflix/sel/type/SelLong.java	45	19	2
private int jjMoveStringLiteralDfa6_0() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParserTokenManager.java	40	19	2
public final void ForInit() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	56	19	0
public char readChar() in netflix-sel/src/main/java/com/netflix/sel/ast/JavaCharStream.java	60	19	0
public void enrich() in maestro-common/src/main/java/com/netflix/maestro/models/timeline/Timeline.java	64	18	1
public SelType binaryOps() in netflix-sel/src/main/java/com/netflix/sel/type/SelDouble.java	45	18	2
public final void RelationalExpression() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	96	18	0
public void onFlowFinalized() in maestro-engine/src/main/java/com/netflix/maestro/engine/listeners/MaestroFinalFlowStatusCallback.java	114	17	1
public static Parameter deriveTypedParameter() in maestro-common/src/main/java/com/netflix/maestro/utils/ParamHelper.java	121	17	6
public SelType call() in netflix-sel/src/main/java/com/netflix/sel/type/SelMap.java	30	17	2
public Result execute() in maestro-engine/src/main/java/com/netflix/maestro/engine/steps/ForeachStepRuntime.java	135	16	3
private void processForStepEntity() in maestro-engine/src/main/java/com/netflix/maestro/engine/processors/StepInstanceWakeUpEventProcessor.java	74	16	1
public int tryExecuteTrigger() in maestro-signal/src/main/java/com/netflix/maestro/signal/dao/MaestroSignalBrokerDao.java	69	16	1
public SelType newSelTypeObj() in netflix-sel/src/main/java/com/netflix/sel/type/SelTypes.java	37	16	0
public final void Type() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	65	16	0
public final void MultiplicativeExpression() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	85	16	0
public Map translate() in maestro-engine/src/main/java/com/netflix/maestro/engine/transformation/DagTranslator.java	52	15	1
public Object eval() in maestro-engine/src/main/java/com/netflix/maestro/engine/eval/ExprEvaluator.java	33	15	2
public SelType call() in netflix-sel/src/main/java/com/netflix/sel/type/SelDouble.java	26	15	2
static SelMap of() in netflix-sel/src/main/java/com/netflix/sel/type/SelMap.java	40	15	1
public final void EqualityExpression() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	74	14	0
public final void AdditiveExpression() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	74	14	0
private void jj_rescan_token() in netflix-sel/src/main/java/com/netflix/sel/ast/SelParser.java	46	14	0
static void computeAndSetAggregatedInstanceStatus() in maestro-engine/src/main/java/com/netflix/maestro/engine/utils/AggregatedViewHelper.java	48	13	2
private Optional savePendingActionIfFeasible() in maestro-engine/src/main/java/com/netflix/maestro/engine/steps/ForeachStepRuntime.java	85	13	2
public static Map cleanupParams() in maestro-engine/src/main/java/com/netflix/maestro/engine/params/ParamsMergeHelper.java	58	13	1