netflix / eureka - 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 2,019 units with 16,760 lines of code in units (67.5% of code).

0 very complex units (0 lines of code)
3 complex units (289 lines of code)
22 medium complex units (1,023 lines of code)
126 simple units (3,459 lines of code)
1,868 very simple units (11,989 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 InstanceInfo deserialize() in eureka-client/src/main/java/com/netflix/discovery/converters/EurekaJacksonCodec.java	157	48	2
public static boolean equal() in eureka-client/src/main/java/com/netflix/discovery/util/EurekaEntityComparators.java	84	46	3
public static boolean equalMini() in eureka-client/src/main/java/com/netflix/discovery/util/EurekaEntityComparators.java	48	26	2
public static List getServiceUrlsFromDNS() in eureka-client/src/main/java/com/netflix/discovery/endpoint/EndpointUtils.java	78	18	4
public Object unmarshal() in eureka-client/src/main/java/com/netflix/discovery/converters/Converters.java	54	17	2
public boolean equals() in eureka-core/src/main/java/com/netflix/eureka/cluster/protocol/ReplicationInstance.java	20	16	1
public AmazonInfo autoBuild() in eureka-client/src/main/java/com/netflix/appinfo/AmazonInfo.java	54	16	1
public Applications getApplicationsFromMultipleRegions() in eureka-core/src/main/java/com/netflix/eureka/registry/AbstractInstanceRegistry.java	57	15	1
public List getInstancesByVipAddressAndAppName() in eureka-client/src/main/java/com/netflix/discovery/DiscoveryClient.java	39	15	3
public static boolean equal() in eureka-client/src/main/java/com/netflix/discovery/util/EurekaEntityComparators.java	26	14	2
private void scheduleServerEndpointTask() in eureka-client/src/main/java/com/netflix/discovery/DiscoveryClient.java	84	14	2
public Response addInstance() in eureka-core/src/main/java/com/netflix/eureka/resources/ApplicationResource.java	40	13	2
public Applications getApplicationDeltasFromMultipleRegions() in eureka-core/src/main/java/com/netflix/eureka/registry/AbstractInstanceRegistry.java	60	13	1
public synchronized InstanceInfo get() in eureka-client/src/main/java/com/netflix/appinfo/providers/EurekaConfigBasedInstanceInfoProvider.java	66	13	0
private void updateDelta() in eureka-client/src/main/java/com/netflix/discovery/DiscoveryClient.java	49	13	1
private void _shuffleAndStoreInstances() in eureka-client/src/main/java/com/netflix/discovery/shared/Application.java	40	13	5
public void bindEIP() in eureka-core/src/main/java/com/netflix/eureka/aws/EIPManager.java	51	12	0
public void register() in eureka-core/src/main/java/com/netflix/eureka/registry/AbstractInstanceRegistry.java	68	12	3
public List getInstancesById() in eureka-core/src/main/java/com/netflix/eureka/registry/AbstractInstanceRegistry.java	30	12	2
public static boolean equal() in eureka-client/src/main/java/com/netflix/discovery/util/EurekaEntityComparators.java	23	12	2
public boolean accept() in eureka-client/src/main/java/com/netflix/discovery/shared/transport/decorator/ServerStatusEvaluators.java	14	12	2
public void run() in eureka-core/src/main/java/com/netflix/eureka/util/batcher/TaskExecutors.java	31	11	0
public RemoteRegionRegistry() in eureka-core/src/main/java/com/netflix/eureka/registry/RemoteRegionRegistry.java	101	11	5
public static boolean equal() in eureka-client/src/main/java/com/netflix/discovery/util/EurekaEntityComparators.java	27	11	2
public boolean equals() in eureka-client/src/main/java/com/netflix/discovery/shared/resolver/DefaultEndpoint.java	11	11	1
private static Target getTarget() in eureka-core/src/main/java/com/netflix/eureka/RateLimitingFilter.java	23	10	1
private Applications fetchRemoteRegistry() in eureka-core/src/main/java/com/netflix/eureka/registry/RemoteRegionRegistry.java	35	10	1
public Applications getApplications() in eureka-core/src/main/java/com/netflix/eureka/registry/AbstractInstanceRegistry.java	35	10	1
public void run() in eureka-client/src/main/java/com/netflix/discovery/TimedSupervisorTask.java	38	10	0
public synchronized void setRegionsToFetch() in eureka-client/src/main/java/com/netflix/discovery/AbstractAzToRegionMapper.java	37	10	1
protected EurekaHttpResponse execute() in eureka-client/src/main/java/com/netflix/discovery/shared/transport/decorator/RetryableEurekaHttpClient.java	39	10	1
public Object unmarshal() in eureka-client/src/main/java/com/netflix/discovery/converters/Converters.java	33	10	2
public LeaseInfo deserialize() in eureka-client/src/main/java/com/netflix/discovery/converters/EurekaJacksonCodec.java	31	10	2
public Application deserialize() in eureka-client/src/main/java/com/netflix/discovery/converters/EurekaJacksonCodec.java	36	10	2
public Applications deserialize() in eureka-client/src/main/java/com/netflix/discovery/converters/EurekaJacksonCodec.java	30	10	2
public Jersey2ApplicationClientFactory build() in eureka-client-jersey2/src/main/java/com/netflix/discovery/shared/transport/jersey2/Jersey2ApplicationClientFactory.java	40	9	0
public Response getContainerDifferential() in eureka-core/src/main/java/com/netflix/eureka/resources/ApplicationsResource.java	41	9	1
protected void updatePeerEurekaNodes() in eureka-core/src/main/java/com/netflix/eureka/cluster/PeerEurekaNodes.java	35	9	1
long transmissionDelay() in eureka-core/src/main/java/com/netflix/eureka/util/batcher/TrafficShaper.java	21	9	0
private void drainInputQueues() in eureka-core/src/main/java/com/netflix/eureka/util/batcher/AcceptorExecutor.java	15	9	0
private void updateDelta() in eureka-core/src/main/java/com/netflix/eureka/registry/RemoteRegionRegistry.java	42	9	1
public int syncUp() in eureka-core/src/main/java/com/netflix/eureka/registry/PeerAwareInstanceRegistryImpl.java	27	9	0
private void primeAwsReplicas() in eureka-core/src/main/java/com/netflix/eureka/registry/PeerAwareInstanceRegistryImpl.java	45	9	1
public boolean statusUpdate() in eureka-core/src/main/java/com/netflix/eureka/registry/AbstractInstanceRegistry.java	44	9	5
public void evict() in eureka-core/src/main/java/com/netflix/eureka/registry/AbstractInstanceRegistry.java	37	9	1
private Value generatePayload() in eureka-core/src/main/java/com/netflix/eureka/registry/ResponseCacheImpl.java	50	9	1
public InstanceInfo() in eureka-client/src/main/java/com/netflix/appinfo/InstanceInfo.java	64	9	1
public static List getServiceUrlsFromConfig() in eureka-client/src/main/java/com/netflix/discovery/endpoint/EndpointUtils.java	31	9	3
public static String getServerIPv4() in eureka-client/src/main/java/com/netflix/discovery/util/SystemUtil.java	23	9	0
private static boolean equal() in eureka-client/src/main/java/com/netflix/discovery/util/EurekaEntityComparators.java	19	9	2