uber / uForwarder 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 1,837 units with 16,407 lines of code in units (59.7% of code).

0 very complex units (0 lines of code)
0 complex units (0 lines of code)
12 medium complex units (921 lines of code)
46 simple units (1,970 lines of code)
1,779 very simple units (13,516 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 State nextState() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/worker/controller/StateWorking.java	303	22	0
public static DispatcherResponse dispatcherResponseFromGrpcStatus() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/dispatcher/DispatcherImpl.java	38	20	1
public boolean equals() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/dispatcher/DispatcherMessage.java	26	20	1
public boolean equals() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/processor/ProcessorMessage.java	23	17	1
private Fallback getKafkaProducerAsyncFallbackPolicy() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/processor/ProcessorImpl.java	114	16	2
public boolean equals() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/dispatcher/grpc/GrpcRequest.java	22	16	1
public void seekStartOffset() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/worker/fetchers/kafka/AbstractKafkaFetcherThread.java	98	16	2
void processFetchedData() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/worker/fetchers/kafka/AbstractKafkaFetcherThread.java	97	15	2
public void computeJobState() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/BatchRpcUriRebalancer.java	41	13	2
private void reportHealthIssues() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/dispatcher/DispatcherImpl.java	28	12	2
public long ack() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/processor/LinkedAckTrackingQueue.java	53	11	1
public void gcPipelines() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/worker/pipelines/PipelineManager.java	78	11	0
public void postProcess() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/BatchRpcUriRebalancer.java	73	10	2
private RetryPolicy getGrpcRetryPolicy() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/processor/ProcessorImpl.java	47	10	2
Permit doAcquire() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/limiter/LongFixedInflightLimiter.java	29	10	2
Map addToCheckPointManager() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/worker/fetchers/kafka/AbstractKafkaFetcherThread.java	50	10	2
private Map ensureWorkerGetAssigned() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/AbstractRpcUriRebalancer.java	39	9	2
List podifyJobGroupsAndWorkers() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/JobGroupAndWorkerPodifier.java	48	9	2
protected DispatcherResponse handleTimeout() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/processor/ProcessorImpl.java	36	9	3
boolean extractTopicPartitionMap() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/worker/fetchers/kafka/AbstractKafkaFetcherThread.java	73	9	3
public T withException() in instrumentation/src/main/java/com/uber/data/kafka/instrumentation/Instrumentation.java	48	8	7
private void emitMetrics() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/RpcJobColocatingRebalancer.java	96	8	3
private void minimizeWorkers() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/AbstractRpcUriRebalancer.java	54	8	1
private CompletionStage doDispatch() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/processor/ProcessorImpl.java	53	8	4
private void tryCompleteFuture() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/limiter/AsyncInflightLimiterAdapter.java	28	8	0
public SeekStartOffsetOption getSeekStartOffsetOption() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/fetcher/OriginalTopicKafkaFetcher.java	23	8	4
public void doWork() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/worker/fetchers/kafka/AbstractKafkaFetcherThread.java	85	8	0
private void ensureWorkersLoadBalanced() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/RpcJobColocatingRebalancer.java	51	7	2
public synchronized boolean cancel() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/processor/MessageStub.java	25	7	1
public abstract void receive() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/processor/AbstractAckTrackingQueue.java	46	7	2
public static int findFirstSmaller() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/controller/autoscalar/ScalePredictionUtils.java	22	7	2
void updateJobStatuses() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/controller/rpc/ControllerWorkerService.java	79	7	2
void commitOffsets() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/worker/fetchers/kafka/AbstractKafkaFetcherThread.java	36	7	1
private void assignJobsToCorrectVirtualPartition() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/RpcJobColocatingRebalancer.java	34	6	5
private boolean adjustJobsOnWorker() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/RpcJobColocatingRebalancer.java	29	6	4
private static List calculateWorkerNeededPerPartition() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/RebalancerCommon.java	53	6	3
protected static void insertWorkersIntoRebalancingTable() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/RebalancerCommon.java	47	6	5
private void consolidateJobGroupWithCacheBeforeRebalance() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/ShadowRebalancerDelegateImpl.java	23	6	2
private Map ensureWorkerUnderloaded() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/AbstractRpcUriRebalancer.java	35	6	1
void reportAndLogNewJobStates() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/controller/rebalancer/AbstractRpcUriRebalancer.java	30	6	1
void onUpdate() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/processor/AbstractAckTrackingQueue.java	15	6	2
private synchronized Optional tryResolve() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/processor/BlockingQueueStubManager.java	24	6	0
public boolean equals() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/processor/TopicPartitionOffset.java	12	6	1
public ClientCall interceptCall() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/dispatcher/grpc/DedupHeaderInterceptor.java	41	6	3
public static long getTimeout() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/dispatcher/grpc/GrpcUtils.java	50	6	4
Permit doAcquire() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/limiter/AdaptiveInflightLimiter.java	23	6	1
public KafkaFetcher create() in uforwarder/src/main/java/com/uber/data/kafka/consumerproxy/worker/fetcher/KafkaFetcherFactory.java	61	6	4
private void expandOrShrink() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/common/KafkaPartitionExpansionWatcher.java	63	6	2
public static int getJobKey() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/common/JobUtils.java	14	6	1
public static Job withJobKey() in uforwarder-core/src/main/java/com/uber/data/kafka/datatransfer/common/JobUtils.java	14	6	2