alibaba / arthas - 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 5,101 units with 39,006 lines of code in units (62.9% of code).

2 very complex units (652 lines of code)
7 complex units (848 lines of code)
88 medium complex units (4,814 lines of code)
231 simple units (6,661 lines of code)
4,773 very simple units (26,031 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 void renderObject() in core/src/main/java/com/taobao/arthas/core/view/ObjectView.java	396	95	4
public static void main() in boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java	256	61	1
public void process() in core/src/main/java/com/taobao/arthas/core/command/basic1000/JFRCommand.java	152	43	1
private String executeArgs() in core/src/main/java/com/taobao/arthas/core/command/monitor200/ProfilerCommand.java	117	38	1
public static Class defineClass() in common/src/main/java/com/taobao/arthas/common/ReflectUtils.java	70	30	5
private int __read() in client/src/main/java/org/apache/commons/net/telnet/TelnetInputStream.java	147	30	1
public void process() in core/src/main/java/com/taobao/arthas/core/command/monitor200/ProfilerCommand.java	121	30	1
public void process() in core/src/main/java/com/taobao/arthas/core/command/klass100/RetransformCommand.java	136	29	1
public void query() in labs/arthas-grpc-web-proxy/src/main/java/com/taobao/arthas/grpcweb/grpc/service/ObjectService.java	105	26	2
public static boolean nullSafeEquals() in core/src/main/java/com/taobao/arthas/core/util/ObjectUtils.java	42	25	2
public static String getFullStacktrace() in core/src/main/java/com/taobao/arthas/core/util/ThreadUtil.java	93	25	3
private void bind() in core/src/main/java/com/taobao/arthas/core/server/ArthasBootstrap.java	112	24	1
public static String getFullStacktrace() in core/src/main/java/com/taobao/arthas/core/util/ThreadUtil.java	82	22	6
public static int process() in client/src/main/java/com/taobao/arthas/client/TelnetConsole.java	111	21	2
public List sample() in core/src/main/java/com/taobao/arthas/core/command/monitor200/ThreadSampler.java	101	21	1
public void process() in core/src/main/java/com/taobao/arthas/core/command/klass100/RedefineCommand.java	87	21	1
public void process() in core/src/main/java/com/taobao/arthas/core/command/klass100/ClassLoaderCommand.java	59	20	1
proto.io.arthas.api.WatchRequest.deserializeBinaryFromReader = function() in labs/arthas-grpc-web-proxy/ui/src/assets/proto/ArthasServices_pb.js	82	20	2
private static String normalizeArch() in common/src/main/java/com/taobao/arthas/common/OSUtils.java	58	19	1
public int read() in client/src/main/java/org/apache/commons/net/telnet/TelnetInputStream.java	99	19	0
private static boolean arrayEquals() in core/src/main/java/com/taobao/arthas/core/env/PropertySource.java	30	19	2
public static void inject() in core/src/main/java/com/taobao/arthas/core/config/BinderUtils.java	58	19	4
private boolean match() in core/src/main/java/com/taobao/arthas/core/util/matcher/WildcardMatcher.java	64	19	4
public static int getItemCount() in core/src/main/java/com/taobao/arthas/core/distribution/ResultConsumerHelper.java	50	18	1
public String apply() in core/src/main/java/com/taobao/arthas/core/shell/command/internal/GrepHandler.java	62	18	1
private void initMethod() in core/src/main/java/com/taobao/arthas/core/advisor/ArthasMethod.java	70	18	0
proto.io.arthas.api.WatchRequest.serializeBinaryToWriter = function() in labs/arthas-grpc-web-proxy/ui/src/assets/proto/ArthasServices_pb.js	122	18	2
public static boolean completeFilePath() in core/src/main/java/com/taobao/arthas/core/shell/cli/CompletionUtils.java	61	17	1
public static JavaObject toJavaObject() in labs/arthas-grpc-web-proxy/src/main/java/com/taobao/arthas/grpcweb/grpc/objectUtils/JavaObjectConverter.java	61	17	2
public void channelRead0() in tunnel-client/src/main/java/com/alibaba/arthas/tunnel/client/TunnelClientSocketClientHandler.java	69	16	2
protected void channelRead0() in labs/arthas-grpc-web-proxy/src/main/java/com/taobao/arthas/grpcweb/grpc/server/httpServer/NettyHttpStaticFileHandler.java	71	16	2
public static long select() in boot/src/main/java/com/taobao/arthas/boot/ProcessUtils.java	54	15	3
public static DefaultFullHttpResponse directView() in core/src/main/java/com/taobao/arthas/core/shell/term/impl/http/DirectoryBrowser.java	89	15	4
public void process() in core/src/main/java/com/taobao/arthas/core/command/monitor200/VmToolCommand.java	80	15	1
public ChannelFuture connect() in tunnel-client/src/main/java/com/alibaba/arthas/tunnel/client/TunnelClient.java	73	14	1
private static synchronized void main() in agent/src/main/java/com/taobao/arthas/agent334/AgentBootstrap.java	71	14	2
public static List getClassLoader() in core/src/main/java/com/taobao/arthas/core/util/ClassLoaderUtils.java	32	14	3
public static String modifier() in core/src/main/java/com/taobao/arthas/core/util/StringUtils.java	43	14	2
public boolean containsValue() in common/src/main/java/com/taobao/arthas/common/concurrent/ConcurrentWeakKeyHashMap.java	45	13	1
void _processDo() in client/src/main/java/org/apache/commons/net/telnet/Telnet.java	67	13	1
public List pollResults() in core/src/main/java/com/taobao/arthas/core/distribution/impl/ResultConsumerImpl.java	46	13	0
private ApiResponse processRequest() in core/src/main/java/com/taobao/arthas/core/shell/term/impl/http/api/HttpApiHandler.java	53	13	2
protected void channelRead0() in core/src/main/java/com/taobao/arthas/core/shell/term/impl/http/HttpRequestHandler.java	46	13	2
public static Class objectiveClass() in core/src/main/java/com/taobao/arthas/core/env/convert/DefaultConversionService.java	25	13	1
private static String nullSafeToString() in core/src/main/java/com/taobao/arthas/core/env/MutablePropertySources.java	37	13	1
public static BlockingLockInfo findMostBlockingLock() in core/src/main/java/com/taobao/arthas/core/util/ThreadUtil.java	45	13	0
public void level() in core/src/main/java/com/taobao/arthas/core/command/logger/LoggerCommand.java	49	13	1
private void checkArguments() in core/src/main/java/com/taobao/arthas/core/command/monitor200/TimeTunnelCommand.java	17	13	0
public void process() in core/src/main/java/com/taobao/arthas/core/command/klass100/JadCommand.java	47	13	1
public void process() in core/src/main/java/com/taobao/arthas/core/command/klass100/SearchMethodCommand.java	55	13	1