apache / ratis - 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 4,202 units with 27,809 lines of code in units (67.1% of code).

0 very complex units (0 lines of code)
0 complex units (0 lines of code)
16 medium complex units (964 lines of code)
128 simple units (3,550 lines of code)
4,058 very simple units (23,295 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
List evict() in ratis-server/src/main/java/org/apache/ratis/server/raftlog/segmented/CacheInvalidationPolicy.java	69	21	5
private ResultAndTerm waitForResults() in ratis-server/src/main/java/org/apache/ratis/server/impl/LeaderElection.java	73	21	5
private String substituteVars() in ratis-common/src/main/java/org/apache/ratis/conf/RaftProperties.java	65	20	1
private CompletableFuture notifyStateMachineToInstallSnapshot() in ratis-server/src/main/java/org/apache/ratis/server/impl/SnapshotInstallationHandler.java	112	17	2
RaftNettyServerReplyProto handle() in ratis-netty/src/main/java/org/apache/ratis/netty/server/NettyRpcService.java	108	15	1
public void run() in ratis-server/src/main/java/org/apache/ratis/server/leader/LogAppenderDefault.java	37	13	0
public CompletableFuture setConfigurationAsync() in ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerImpl.java	61	13	1
static void sendRequestWithRetry() in ratis-client/src/main/java/org/apache/ratis/client/impl/UnorderedAsync.java	65	13	2
private void run() in ratis-server/src/main/java/org/apache/ratis/server/raftlog/segmented/SegmentedRaftLogWorker.java	55	12	0
private boolean askForVotes() in ratis-server/src/main/java/org/apache/ratis/server/impl/LeaderElection.java	39	12	2
private void readImpl() in ratis-netty/src/main/java/org/apache/ratis/netty/server/DataStreamManagement.java	63	12	5
static RaftClientReply toRaftClientReply() in ratis-client/src/main/java/org/apache/ratis/client/impl/ClientProtoUtils.java	45	12	1
private synchronized CompletableFuture changeToFollower() in ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerImpl.java	34	11	5
void handleIOException() in ratis-client/src/main/java/org/apache/ratis/client/impl/RaftClientImpl.java	29	11	4
public RaftClientReply sendRequest() in ratis-grpc/src/main/java/org/apache/ratis/grpc/client/GrpcClientRpc.java	48	11	1
public void onNext() in ratis-grpc/src/main/java/org/apache/ratis/grpc/server/GrpcLogAppender.java	61	11	1
public LogEntryProto nextEntry() in ratis-server/src/main/java/org/apache/ratis/server/raftlog/segmented/SegmentedRaftLogInputStream.java	33	10	0
protected CompletableFuture appendEntryImpl() in ratis-server/src/main/java/org/apache/ratis/server/raftlog/segmented/SegmentedRaftLog.java	52	10	2
private void runImpl() in ratis-server/src/main/java/org/apache/ratis/server/impl/LeaderElection.java	34	10	0
private CompletableFuture checkAndInstallSnapshot() in ratis-server/src/main/java/org/apache/ratis/server/impl/SnapshotInstallationHandler.java	61	10	2
boolean hasNoChange() in ratis-server/src/main/java/org/apache/ratis/server/impl/RaftConfigurationImpl.java	25	10	2
private RequestVoteReplyProto requestVote() in ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerImpl.java	44	10	5
static RaftClientRequestProto toRaftClientRequestProto() in ratis-client/src/main/java/org/apache/ratis/client/impl/ClientProtoUtils.java	35	10	2
public int run() in ratis-shell/src/main/java/org/apache/ratis/shell/cli/sh/local/RaftMetaConfCommand.java	59	10	1
static InetSocketAddress createSocketAddr() in ratis-common/src/main/java/org/apache/ratis/util/NetUtils.java	27	10	2
public void installSnapshot() in ratis-server/src/main/java/org/apache/ratis/server/storage/SnapshotManager.java	54	9	2
private AppendEntriesReplyProto sendAppendEntriesWithRetries() in ratis-server/src/main/java/org/apache/ratis/server/leader/LogAppenderDefault.java	35	9	1
public void close() in ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerImpl.java	48	9	0
CompletableFuture transferLeadershipAsync() in ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerImpl.java	36	9	1
private CompletableFuture appendEntriesAsync() in ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerImpl.java	74	9	4
private long checkInconsistentAppendEntries() in ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerImpl.java	25	9	2
static Throwable tryUnwrapThrowable() in ratis-grpc/src/main/java/org/apache/ratis/grpc/GrpcUtil.java	32	9	1
static void shutdownManagedChannel() in ratis-grpc/src/main/java/org/apache/ratis/grpc/GrpcUtil.java	26	9	1
static void printField() in ratis-common/src/main/java/org/apache/ratis/conf/ConfUtils.java	28	9	3
public void update() in ratis-common/src/main/java/org/apache/ratis/util/PureJavaCrc32C.java	31	9	3
public TimeDuration multiply() in ratis-common/src/main/java/org/apache/ratis/util/TimeDuration.java	25	9	1
StorageState analyzeStorage() in ratis-server/src/main/java/org/apache/ratis/server/storage/RaftStorageDirectoryImpl.java	35	8	1
public InstallSnapshotRequestProto next() in ratis-server/src/main/java/org/apache/ratis/server/leader/InstallSnapshotRequests.java	28	8	0
private void handleReply() in ratis-server/src/main/java/org/apache/ratis/server/leader/LogAppenderDefault.java	32	8	2
static LogValidation scanEditLog() in ratis-server/src/main/java/org/apache/ratis/server/raftlog/segmented/SegmentedRaftLogInputStream.java	35	8	2
TruncationSegments truncate() in ratis-server/src/main/java/org/apache/ratis/server/raftlog/segmented/SegmentedRaftLogCache.java	49	8	3
void close() in ratis-server/src/main/java/org/apache/ratis/server/impl/ServerState.java	26	8	0
private void checkPeersForYieldingLeader() in ratis-server/src/main/java/org/apache/ratis/server/impl/LeaderStateImpl.java	30	8	0
void groupRemove() in ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerImpl.java	39	8	2
private CompletableFuture checkLeaderState() in ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerImpl.java	27	8	2
private CompletableFuture appendTransaction() in ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerImpl.java	43	8	3
public static long getCallId() in ratis-netty/src/main/java/org/apache/ratis/netty/NettyRpcProxy.java	22	8	1
private RaftNettyServerRequestProto buildRequestProto() in ratis-netty/src/main/java/org/apache/ratis/netty/client/NettyClientRpc.java	37	8	1
default SnapshotInfo shouldInstallSnapshot() in ratis-server-api/src/main/java/org/apache/ratis/server/leader/LogAppender.java	20	8	0
static RaftClientReplyProto toRaftClientReplyProto() in ratis-client/src/main/java/org/apache/ratis/client/impl/ClientProtoUtils.java	68	8	1