apache / log4j-extrasConditional 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 933 units with 8,824 lines of code in units (75.5% of code).

0 very complex units (0 lines of code)
2 complex units (241 lines of code)
25 medium complex units (1,755 lines of code)
54 simple units (1,629 lines of code)
852 very simple units (5,199 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 Vector decodeEvents() in src/main/java/org/apache/log4j/receivers/xml/UtilLoggingXMLDecoder.java	107	26	1
private Vector decodeEvents() in src/main/java/org/apache/log4j/receivers/xml/XMLDecoder.java	134	26	1
protected void initialize() in src/main/java/org/apache/log4j/receivers/varia/LogFilePatternReceiver.java	91	25	0
public static void parse() in src/main/java/org/apache/log4j/pattern/ExtrasPatternParser.java	145	25	5
void parse() in src/main/java/org/apache/log4j/extras/DOMConfigurator.java	70	24	1
public Object getValue() in src/main/java/org/apache/log4j/spi/LoggingEventFieldResolver.java	50	23	2
public synchronized String format() in src/main/java/org/apache/log4j/xml/XSLTLayout.java	111	21	1
protected void append() in src/main/java/org/apache/log4j/DBAppender.java	118	21	1
public synchronized String format() in src/main/java/org/apache/log4j/extras/XSLTLayout.java	111	21	1
public void execute() in src/main/java/org/apache/log4j/receivers/db/CustomSQLDBReceiver.java	127	20	0
public boolean rollover() in src/main/java/org/apache/log4j/rolling/RollingFileAppender.java	87	18	0
public void run() in src/main/java/org/apache/log4j/receivers/net/XMLSocketNode.java	77	18	0
String infixToPostFix() in src/main/java/org/apache/log4j/rule/InFixToPostFix.java	56	18	1
private LoggingEvent convertToEvent() in src/main/java/org/apache/log4j/receivers/varia/LogFilePatternReceiver.java	80	17	2
public void run() in src/main/java/org/apache/log4j/receivers/net/SocketNode13.java	62	16	0
private boolean purge() in src/main/java/org/apache/log4j/rolling/FixedWindowRollingPolicy.java	61	14	2
protected void process() in src/main/java/org/apache/log4j/receivers/varia/LogFilePatternReceiver.java	45	14	1
public void setTransform() in src/main/java/org/apache/log4j/xml/XSLTLayout.java	42	14	1
public Rule compileExpression() in src/main/java/org/apache/log4j/rule/ExpressionRule.java	38	14	1
public Rule getRule() in src/main/java/org/apache/log4j/rule/RuleFactory.java	39	14	2
public void parseInput() in src/main/java/org/apache/log4j/rule/InFixToPostFix.java	41	14	2
public void setTransform() in src/main/java/org/apache/log4j/extras/XSLTLayout.java	42	14	1
public void activateOptions() in src/main/java/org/apache/log4j/receivers/xml/LogFileXMLReceiver.java	52	13	0
private static PatternConverter createConverter() in src/main/java/org/apache/log4j/pattern/ExtrasPatternParser.java	75	13	5
public void run() in src/main/java/org/apache/log4j/receivers/net/UDPReceiver.java	41	12	0
public void activateOptions() in src/main/java/org/apache/log4j/rolling/RollingFileAppender.java	54	11	0
public void run() in src/main/java/org/apache/log4j/receivers/net/MulticastReceiver.java	40	11	0
public void activateOptions() in src/main/java/org/apache/log4j/receivers/varia/LogFilePatternReceiver.java	49	10	0
public boolean evaluate() in src/main/java/org/apache/log4j/rule/InequalityRule.java	33	10	2
Appender parseAppender() in src/main/java/org/apache/log4j/extras/DOMConfigurator.java	52	10	1
public void activateOptions() in src/main/java/org/apache/log4j/receivers/net/JMSReceiver.java	45	9	0
private String quoteTimeStampChars() in src/main/java/org/apache/log4j/receivers/varia/LogFilePatternReceiver.java	20	9	1
public static Level toLevel() in src/main/java/org/apache/log4j/receivers/helpers/UtilLoggingLevel.java	29	9	2
public boolean evaluate() in src/main/java/org/apache/log4j/rule/OrRule.java	35	9	2
public boolean evaluate() in src/main/java/org/apache/log4j/rule/AndRule.java	33	9	2
public static Level toLevel() in src/main/java/org/apache/log4j/extras/UtilLoggingLevel.java	29	9	2
void parseErrorHandler() in src/main/java/org/apache/log4j/extras/DOMConfigurator.java	36	9	2
public boolean execute() in src/main/java/org/apache/log4j/rolling/helper/CompositeAction.java	26	8	0
public LoggingEvent rewrite() in src/main/java/org/apache/log4j/receivers/rewrite/ReflectionRewritePolicy.java	42	8	1
public void activateOptions() in src/main/java/org/apache/log4j/receivers/net/MulticastReceiver.java	36	8	0
public void activateOptions() in src/main/java/org/apache/log4j/receivers/net/MulticastAppender.java	36	8	0
public void append() in src/main/java/org/apache/log4j/receivers/net/MulticastAppender.java	32	8	1
public void activateOptions() in src/main/java/org/apache/log4j/receivers/net/UDPAppender.java	34	8	0
public void append() in src/main/java/org/apache/log4j/receivers/net/UDPAppender.java	32	8	1
public void run() in src/main/java/org/apache/log4j/receivers/net/SocketReceiver.java	53	8	0
public Vector decode() in src/main/java/org/apache/log4j/receivers/xml/UtilLoggingXMLDecoder.java	44	8	1
public Vector decode() in src/main/java/org/apache/log4j/receivers/xml/XMLDecoder.java	44	8	1
public static UtilLoggingLevel toLevel() in src/main/java/org/apache/log4j/receivers/helpers/UtilLoggingLevel.java	21	8	2
public boolean evaluate() in src/main/java/org/apache/log4j/rule/TimestampInequalityRule.java	26	8	2
private int handleText() in src/main/java/org/apache/log4j/rule/InFixToPostFix.java	30	8	3