apache / xalan-java - 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 9,245 units with 110,217 lines of code in units (59.5% of code).

4 very complex units (1,451 lines of code)
54 complex units (6,944 lines of code)
309 medium complex units (19,009 lines of code)
641 simple units (20,015 lines of code)
8,237 very simple units (62,798 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
public static void main() in xalan/src/main/java/org/apache/xalan/xslt/Process.java	814	168	1
public void setParameter() in serializer/src/main/java/org/apache/xml/serializer/dom3/LSSerializerImpl.java	260	78	2
void tokenize() in xalan/src/main/java/org/apache/xpath/compiler/Lexer.java	230	69	2
public void processingInstruction() in xalan/src/main/java/org/apache/xml/utils/StylesheetPIHandler.java	147	58	2
protected void serializeAttList() in serializer/src/main/java/org/apache/xml/serializer/dom3/DOM3TreeWalker.java	142	49	1
void setProp() in serializer/src/main/java/org/apache/xml/serializer/ToStream.java	129	46	3
public Object callFunction() in xalan/src/main/java/org/apache/xalan/extensions/ExtensionHandlerJavaClass.java	219	46	4
private Method outline() in xalan/src/main/java/org/apache/xalan/xsltc/compiler/util/MethodGenerator.java	309	45	4
protected boolean nextNode() in xalan/src/main/java/org/apache/xml/dtm/ref/dom2dtm/DOM2DTM.java	153	45	0
private void getFormattedNumber() in xalan/src/main/java/org/apache/xalan/templates/ElemNumber.java	212	44	6
protected void inlineParser() in xalan/src/main/java/org/apache/xalan/lib/sql/SQLQueryParser.java	115	43	0
public Object getParameter() in serializer/src/main/java/org/apache/xml/serializer/dom3/LSSerializerImpl.java	57	42	1
public void compileApplyImports() in xalan/src/main/java/org/apache/xalan/xsltc/compiler/Mode.java	212	42	3
public void transform() in xalan/src/main/java/org/apache/xalan/transformer/TransformerIdentityImpl.java	197	42	2
static Object convert() in xalan/src/main/java/org/apache/xalan/extensions/MethodResolver.java	165	42	2
public void compileApplyTemplates() in xalan/src/main/java/org/apache/xalan/xsltc/compiler/Mode.java	208	41	1
public Object callFunction() in xalan/src/main/java/org/apache/xalan/extensions/ExtensionHandlerJavaPackage.java	201	40	4
public String getNamespaceOfNode() in xalan/src/main/java/org/apache/xml/utils/DOMHelper.java	163	40	1
synchronized public DTM getDTM() in xalan/src/main/java/org/apache/xml/dtm/ref/DTMManagerDefault.java	148	40	5
public void characters() in serializer/src/main/java/org/apache/xml/serializer/ToStream.java	167	38	3
public static boolean compare() in xalan/src/main/java/org/apache/xalan/xsltc/runtime/BasisLibrary.java	108	38	4
private void initialize() in xalan/src/main/java/org/apache/xml/utils/URI.java	143	37	2
private static boolean isOptimizableForDescendantIterator() in xalan/src/main/java/org/apache/xpath/axes/WalkerFactory.java	77	36	3
public Templates newTemplates() in xalan/src/main/java/org/apache/xalan/xsltc/trax/TransformerFactoryImpl.java	126	35	1
public boolean checkAxisMismatch() in xalan/src/main/java/org/apache/xalan/xsltc/compiler/ParentLocationPath.java	42	35	0
public void transformSelectedNodes() in xalan/src/main/java/org/apache/xalan/templates/ElemApplyTemplates.java	182	34	1
public boolean equals() in serializer/src/main/java/org/apache/xml/serializer/utils/URI.java	18	33	1
public void parseContents() in xalan/src/main/java/org/apache/xalan/xsltc/compiler/Output.java	136	33	1
boolean widenConditionalBranchTargetOffsets() in xalan/src/main/java/org/apache/xalan/xsltc/compiler/util/MethodGenerator.java	95	33	0
public boolean equals() in xalan/src/main/java/org/apache/xml/utils/URI.java	18	33	1
private void initialize() in serializer/src/main/java/org/apache/xml/serializer/utils/URI.java	136	32	2
private static boolean isNaturalDocOrder() in xalan/src/main/java/org/apache/xpath/axes/WalkerFactory.java	65	32	4
public Expression compile() in xalan/src/main/java/org/apache/xpath/compiler/Compiler.java	76	32	1
public void startElement() in xalan/src/main/java/org/apache/xalan/processor/ProcessorLRE.java	186	32	5
public static DTMAxisIterator nodeList2Iterator() in xalan/src/main/java/org/apache/xalan/xsltc/runtime/BasisLibrary.java	129	32	3
private void parse() in xalan/src/main/java/org/apache/xalan/xsltc/trax/DOM2SAX.java	110	32	1
public boolean write() in serializer/src/main/java/org/apache/xml/serializer/dom3/LSSerializerImpl.java	133	31	2
public static DTMIterator newDTMIterator() in xalan/src/main/java/org/apache/xpath/axes/WalkerFactory.java	81	31	3
public Type typeCheckExternal() in xalan/src/main/java/org/apache/xalan/xsltc/compiler/FunctionCall.java	106	31	1
private void parse() in xalan/src/main/java/org/apache/xalan/xsltc/trax/DOM2TO.java	102	30	1
public void parseContents() in xalan/src/main/java/org/apache/xalan/xsltc/compiler/XslAttribute.java	70	30	1
private void initializePath() in serializer/src/main/java/org/apache/xml/serializer/utils/URI.java	93	29	1
public AVT() in xalan/src/main/java/org/apache/xalan/templates/AVT.java	201	29	6
private void parseAVTemplate() in xalan/src/main/java/org/apache/xalan/xsltc/compiler/AttributeValueTemplate.java	114	29	2
private void initializePath() in xalan/src/main/java/org/apache/xml/utils/URI.java	93	29	1
private static int analyze() in xalan/src/main/java/org/apache/xpath/axes/WalkerFactory.java	91	28	3
public DTM getDTM() in xalan/src/main/java/org/apache/xalan/xsltc/dom/XSLTCDTMManager.java	120	28	9
public void setAttribute() in xalan/src/main/java/org/apache/xalan/xsltc/trax/TransformerFactoryImpl.java	87	28	2
public void dumpDTM() in xalan/src/main/java/org/apache/xml/dtm/ref/DTMDefaultBase.java	120	28	1
protected void startNode() in serializer/src/main/java/org/apache/xml/serializer/TreeWalker.java	138	26	1