apache / knox - 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 6,774 units with 51,536 lines of code in units (45.5% of code).

1 very complex units (354 lines of code)
3 complex units (363 lines of code)
71 medium complex units (3,741 lines of code)
334 simple units (9,062 lines of code)
6,365 very simple units (38,016 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 int init() in gateway-server/src/main/java/org/apache/knox/gateway/util/KnoxCLI.java	354	141	1
private static Map generateTopology() in gateway-topology-simple/src/main/java/org/apache/knox/gateway/topology/simple/SimpleDescriptorHandler.java	184	45	10
protected boolean hasShiroProviderErrors() in gateway-server/src/main/java/org/apache/knox/gateway/util/KnoxCLI.java	74	32	2
private List parse() in gateway-util-common/src/main/java/org/apache/knox/gateway/util/JsonPath.java	105	29	1
public Cluster discover() in gateway-discovery-ambari/src/main/java/org/apache/knox/gateway/topology/discovery/ambari/AmbariServiceDiscovery.java	98	25	3
public void init() in gateway-service-knoxtoken/src/main/java/org/apache/knox/gateway/service/knoxtoken/TokenResource.java	93	24	0
public static Map handle() in gateway-topology-simple/src/main/java/org/apache/knox/gateway/topology/simple/SimpleDescriptorHandler.java	81	24	5
public Object execute() in gateway-shell/src/main/java/org/apache/knox/gateway/shell/commands/DataSourceCommand.java	81	20	1
public Object execute() in gateway-shell/src/main/java/org/apache/knox/gateway/shell/commands/SelectCommand.java	84	20	1
public Object buildSslContextFactory() in gateway-server/src/main/java/org/apache/knox/gateway/services/security/impl/JettySSLService.java	86	20	1
public List evaluate() in gateway-util-common/src/main/java/org/apache/knox/gateway/util/JsonPath.java	83	20	1
onFinishAdd() in gateway-admin-ui/admin-ui/app/provider-config-wizard/provider-config-wizard.component.ts	58	19	0
public void init() in gateway-provider-security-pac4j/src/main/java/org/apache/knox/gateway/pac4j/filter/Pac4jDispatcherFilter.java	85	18	1
public static HaServiceConfig createServiceConfig() in gateway-provider-ha/src/main/java/org/apache/knox/gateway/ha/provider/impl/HaDescriptorFactory.java	45	18	12
public void execute() in gateway-server/src/main/java/org/apache/knox/gateway/util/KnoxCLI.java	95	18	0
private void processEvent() in gateway-provider-rewrite/src/main/java/org/apache/knox/gateway/filter/rewrite/impl/xml/XmlFilterReader.java	38	17	1
public void doFilter() in gateway-provider-security-jwt/src/main/java/org/apache/knox/gateway/provider/federation/jwt/filter/JWTFederationFilter.java	67	17	3
public List create() in gateway-discovery-ambari/src/main/java/org/apache/knox/gateway/topology/discovery/ambari/HDFSURLCreatorBase.java	58	17	2
private boolean checkACLs() in gateway-provider-security-authz-path-acls/src/main/java/org/apache/knox/gateway/filter/PathAclsAuthorizationFilter.java	43	16	2
protected boolean verifyTokenSignature() in gateway-provider-security-jwt/src/main/java/org/apache/knox/gateway/provider/federation/jwt/filter/AbstractJWTFilter.java	42	16	1
public void doFilter() in gateway-server/src/main/java/org/apache/knox/gateway/GatewayFilter.java	86	16	2
private Response getAuthenticationToken() in gateway-service-knoxsso/src/main/java/org/apache/knox/gateway/service/knoxsso/WebSSOResource.java	92	16	1
protected boolean enforceAclAuthorizationPolicy() in gateway-provider-security-authz-acls/src/main/java/org/apache/knox/gateway/filter/AclsAuthorizationFilter.java	41	16	3
private Match createMatch() in gateway-util-urltemplate/src/main/java/org/apache/knox/gateway/util/urltemplate/Matcher.java	43	16	4
private ClouderaManagerCluster discoverCluster() in gateway-discovery-cm/src/main/java/org/apache/knox/gateway/topology/discovery/cm/ClouderaManagerServiceDiscovery.java	54	15	3
private Set rolesFor() in gateway-provider-security-shiro/src/main/java/org/apache/knox/gateway/shirorealm/KnoxLdapRealm.java	59	15	4
public Object execute() in gateway-shell/src/main/java/org/apache/knox/gateway/shell/commands/WebHDFSCommand.java	72	15	1
public void childEvent() in gateway-server/src/main/java/org/apache/knox/gateway/services/security/impl/ZookeeperRemoteAliasService.java	46	15	3
JSONObject invoke() in gateway-discovery-ambari/src/main/java/org/apache/knox/gateway/topology/discovery/ambari/RESTInvoker.java	61	15	3
private void configure() in gateway-discovery-cm/src/main/java/org/apache/knox/gateway/topology/discovery/cm/DiscoveryApiClient.java	52	14	3
public Template rewrite() in gateway-provider-rewrite/src/main/java/org/apache/knox/gateway/filter/rewrite/api/UrlRewriteProcessor.java	54	14	4
protected CloseableHttpClient createClient() in gateway-shell/src/main/java/org/apache/knox/gateway/shell/KnoxSession.java	104	14	1
private void buildTrustStore() in gateway-provider-security-authc-remote/src/main/java/org/apache/knox/gateway/filter/RemoteAuthFilter.java	37	14	1
public void execute() in gateway-server/src/main/java/org/apache/knox/gateway/util/KnoxCLI.java	56	14	0
private Response setTokenEnabledFlag() in gateway-service-knoxtoken/src/main/java/org/apache/knox/gateway/service/knoxtoken/TokenResource.java	35	14	3
public List create() in gateway-discovery-ambari/src/main/java/org/apache/knox/gateway/topology/discovery/ambari/AmbariDynamicServiceURLCreator.java	57	14	2
public ZooKeeperConfig getZooKeeperConfiguration() in gateway-discovery-ambari/src/main/java/org/apache/knox/gateway/topology/discovery/ambari/AmbariCluster.java	39	14	1
private boolean hasConfigChanged() in gateway-discovery-cm/src/main/java/org/apache/knox/gateway/topology/discovery/cm/monitor/PollingConfigurationAnalyzer.java	44	13	3
private void processCurrentToken() in gateway-provider-rewrite/src/main/java/org/apache/knox/gateway/filter/rewrite/impl/json/JsonFilterReader.java	36	13	0
private void processBufferedElement() in gateway-provider-rewrite/src/main/java/org/apache/knox/gateway/filter/rewrite/impl/xml/XmlFilterReader.java	53	13	2
protected String getUserDn() in gateway-provider-security-shiro/src/main/java/org/apache/knox/gateway/shirorealm/KnoxLdapRealm.java	60	13	1
public String resolve() in gateway-provider-rewrite-func-service-registry/src/main/java/org/apache/knox/gateway/svcregfunc/impl/ServiceMappedAddressFunctionProcessor.java	35	13	2
public void start() in gateway-server/src/main/java/org/apache/knox/gateway/services/token/impl/DefaultTokenAuthorityService.java	51	13	0
public void run() in gateway-discovery-ambari/src/main/java/org/apache/knox/gateway/topology/discovery/ambari/AmbariConfigurationMonitor.java	36	13	0
private void handleCookieSetup() in gateway-service-knoxsso/src/main/java/org/apache/knox/gateway/service/knoxsso/WebSSOResource.java	51	13	0
public static Map parseQueryString() in gateway-util-common/src/main/java/org/apache/knox/gateway/util/HttpUtils.java	45	13	1
public void contributeFilter() in gateway-provider-security-webappsec/src/main/java/org/apache/knox/gateway/webappsec/deploy/WebAppSecContributor.java	85	12	5
private SimpleDescriptor parseXmlDescriptor() in gateway-topology-hadoop-xml/src/main/java/org/apache/knox/gateway/topology/hadoop/xml/HadoopXmlResourceParser.java	49	12	2
public void log() in gateway-i18n-logging-sl4j/src/main/java/org/apache/knox/gateway/i18n/messages/loggers/sl4j/Sl4jMessageLogger.java	40	12	5
static HttpUriRequest modifyOutboundRequest() in gateway-service-nifi/src/main/java/org/apache/knox/gateway/dispatch/NiFiRequestUtil.java	38	12	2