apache / logging-log4j1Conditional 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 2,171 units with 19,433 lines of code in units (66.8% of code).

0 very complex units (0 lines of code)
2 complex units (185 lines of code)
43 medium complex units (2,218 lines of code)
116 simple units (3,259 lines of code)
2,010 very simple units (13,771 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 void setOption() in contribs/ThomasFenner/JDBCAppender.java	107	34	2
void parse() in src/main/java/org/apache/log4j/xml/DOMConfigurator.java	78	27	1
public static void parse() in src/main/java/org/apache/log4j/pattern/PatternParser.java	128	24	5
PatternConverter parse() in src/main/java/org/apache/log4j/helpers/PatternParser.java	92	24	0
public boolean handleRequest() in contribs/VolkerMentzner/Log4jRequestHandler.java	115	22	2
int getFacility() in src/main/java/org/apache/log4j/net/SyslogAppender.java	48	22	1
public LocationInfo() in src/main/java/org/apache/log4j/spi/LocationInfo.java	85	22	2
public boolean ready() in contribs/ThomasFenner/JDBCLogger.java	58	21	0
String getFacilityString() in src/main/java/org/apache/log4j/net/SyslogAppender.java	25	21	1
StringBuffer format() in src/main/java/org/apache/log4j/helpers/ISO8601DateFormat.java	62	21	3
public void setLogType() in contribs/ThomasFenner/JDBCLogger.java	60	19	3
void finalizeConverter() in src/main/java/org/apache/log4j/helpers/PatternParser.java	97	19	1
public static NameAbbreviator getAbbreviator() in src/main/java/org/apache/log4j/pattern/NameAbbreviator.java	61	17	1
void append() in src/main/java/org/apache/log4j/net/SyslogAppender.java	48	16	1
void run() in src/main/java/org/apache/log4j/net/SocketHubAppender.java	64	16	0
protected void existingInit() in contribs/KevinSteppe/CompositeRollingAppender.java	52	15	0
void setProperties() in src/main/java/org/apache/log4j/config/PropertySetter.java	46	15	2
protected boolean configure() in contribs/ThomasFenner/JDBCAppender.java	51	14	0
public void run() in src/main/java/org/apache/log4j/net/SocketNode.java	44	14	0
public void append() in src/main/java/org/apache/log4j/AsyncAppender.java	50	14	1
void rollOver() in src/main/java/org/apache/log4j/RollingFileAppender.java	54	14	0
public void run() in contribs/VolkerMentzner/PluggableHTTPServer.java	50	13	0
public void run() in contribs/JamesHouse/LogTextPanelExample.java	32	13	0
private String formatElement() in src/main/java/org/apache/log4j/EnhancedThrowableRenderer.java	53	13	2
private static PatternConverter createConverter() in src/main/java/org/apache/log4j/pattern/PatternParser.java	75	13	5
static public String escapeTags() in src/main/java/org/apache/log4j/helpers/Transform.java	30	13	1
Level toLevel() in src/main/java/org/apache/log4j/helpers/OptionConverter.java	54	13	2
public void setOption() in contribs/LeosLiterak/TempFileAppender.java	28	12	2
void append() in src/main/java/org/apache/log4j/net/SocketHubAppender.java	44	12	1
Object getAttribute() in src/main/java/org/apache/log4j/jmx/AppenderDynamicMBean.java	37	12	1
void setAttribute() in src/main/java/org/apache/log4j/jmx/AppenderDynamicMBean.java	47	12	1
Appender parseAppender() in src/main/java/org/apache/log4j/PropertyConfigurator.java	68	12	2
Appender parseAppender() in src/main/java/org/apache/log4j/xml/DOMConfigurator.java	55	12	1
private static String format() in src/main/java/org/apache/log4j/LogMF.java	39	12	2
static public URL getResource() in src/main/java/org/apache/log4j/helpers/Loader.java	39	12	1
protected void connect() in contribs/ThomasFenner/JDBCAppender.java	35	11	0
protected Object getColumn() in src/main/java/org/apache/log4j/lf5/viewer/FilteredLogTableModel.java	29	11	2
public void valueChanged() in src/main/java/org/apache/log4j/lf5/viewer/LogTable.java	34	11	1
void printOptions() in src/main/java/org/apache/log4j/config/PropertyPrinter.java	29	11	2
void setAttribute() in src/main/java/org/apache/log4j/jmx/LayoutDynamicMBean.java	46	11	1
void parseCatsAndRenderers() in src/main/java/org/apache/log4j/PropertyConfigurator.java	43	11	2
void parseCategory() in src/main/java/org/apache/log4j/PropertyConfigurator.java	35	11	5
private static String format() in src/main/java/org/apache/log4j/LogMF.java	39	11	2
Level toLevel() in src/main/java/org/apache/log4j/Level.java	15	11	2
String convertSpecialChars() in src/main/java/org/apache/log4j/helpers/OptionConverter.java	22	11	1
void setOption() in contribs/JamesHouse/TextPanelAppender.java	21	10	2
protected void rollOverSize() in contribs/KevinSteppe/CompositeRollingAppender.java	43	10	0
protected void addressMessage() in src/main/java/org/apache/log4j/net/SMTPAppender.java	19	10	1
public void activateOptions() in src/main/java/org/apache/log4j/net/JMSAppender.java	61	10	0
public void append() in src/main/java/org/apache/log4j/net/SocketAppender.java	42	10	1