epam / edp-ddm-kong-admin-toolsConditional 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 1,962 units with 25,763 lines of code in units (13.3% of code).

1 very complex units (181 lines of code)
6 complex units (863 lines of code)
57 medium complex units (3,900 lines of code)
194 simple units (6,446 lines of code)
1,704 very simple units (14,373 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
lua function Schema:process_auto_fields() in kong/kong/db/schema/init.lua	181	52	4
lua function Schema:validate_field() in kong/kong/db/schema/init.lua	121	41	2
lua function declarative.load_into_cache() in kong/kong/db/declarative/init.lua	186	38	3
lua check = function() in kong/kong/db/schema/metaschema.lua	113	35	1
lua function PluginsIterator.new() in kong/kong/runloop/plugins_iterator.lua	159	34	1
lua function DB:run_migrations() in kong/kong/db/init.lua	143	33	2
lua function _M:communicate() in kong/kong/clustering/data_plane.lua	141	30	1
lua function Kong.init_worker() in kong/kong/init.lua	121	25	0
lua before = function() in kong/kong/runloop/handler.lua	144	25	1
lua _M.init = function() in kong/kong/resty/dns/client.lua	140	25	1
lua function AWSLambdaHandler:access() in kong/kong/plugins/aws-lambda/handler.lua	159	24	1
lua function _mt:insert() in kong/kong/db/strategies/cassandra/init.lua	106	24	2
lua function DB:cluster_mutex() in kong/kong/db/init.lua	92	23	3
lua function Kong.balancer() in kong/kong/init.lua	122	21	0
lua function State.load() in kong/kong/db/migrations/state.lua	95	21	1
lua after = function() in kong/kong/runloop/handler.lua	64	18	1
lua _G.math.randomseed = function() in kong/kong/globalpatches.lua	78	16	0
lua function ACMEHandler:certificate() in kong/kong/plugins/acme/handler.lua	70	16	1
lua function _RESPONSE.error() in kong/kong/pdk/response.lua	70	16	3
lua function _REQUEST.get_body() in kong/kong/pdk/request.lua	57	16	2
lua function _M:start_kong() in kong/spec/helpers/perf/drivers/docker.lua	67	15	2
lua function Kong.log() in kong/kong/init.lua	79	15	0
lua function balancer_prepare() in kong/kong/runloop/handler.lua	81	15	7
lua before = function() in kong/kong/runloop/handler.lua	92	15	0
lua function handle() in kong/kong/plugins/oidc/handler.lua	57	15	1
lua function _M.transform_json_body() in kong/kong/plugins/response-transformer/body_transformer.lua	52	15	2
lua function Schema.new() in kong/kong/db/schema/init.lua	55	15	2
lua function response.get_body() in kong/kong/pdk/service/response.lua	55	15	2
lua function _M:setup_kong() in kong/spec/helpers/perf/drivers/terraform.lua	114	14	1
lua function Kong.init() in kong/kong/init.lua	74	14	0
lua function _M.parse_simple_sequence() in kong/kong/plugins/jwt/asn_sequence.lua	45	14	1
lua function ACLHandler:access() in kong/kong/plugins/acl/handler.lua	67	14	1
lua function concurrency.with_coroutine_mutex() in kong/kong/concurrency.lua	51	14	2
lua _M.parseResolvConf = function() in kong/kong/resty/dns/utils.lua	45	14	1
def main() in kong/spec/helpers/perf/charts/charts.py	75	13	1
lua function lc:getPeer() in kong/kong/runloop/balancer/least_connections.lua	63	13	3
lua POST = function() in kong/kong/plugins/acme/api.lua	50	13	1
lua function ProxyCacheHandler:access() in kong/kong/plugins/proxy-cache/handler.lua	74	13	1
lua function Prometheus:metric_data() in kong/kong/plugins/prometheus/prometheus.lua	63	13	1
lua function CassandraConnector:schema_bootstrap() in kong/kong/db/strategies/cassandra/connector.lua	70	13	2
lua local check_fields = function() in kong/kong/db/schema/metaschema.lua	50	13	2
lua fdata_to_jsonable = function() in kong/kong/api/api_helpers.lua	36	13	2
lua POST = function() in kong/kong/api/routes/config.lua	70	13	2
lua function _M.new() in kong/kong/cluster_events/init.lua	68	13	1
lua function _M:select() in kong/kong/router/atc_compat.lua	70	13	10
lua function _M:get_start_load_cmd() in kong/spec/helpers/perf/drivers/docker.lua	48	12	4
lua function Kong.header_filter() in kong/kong/init.lua	58	12	0
lua before = function() in kong/kong/runloop/handler.lua	45	12	1
lua function ZipkinLogHandler:log() in kong/kong/plugins/zipkin/handler.lua	83	12	1
lua function RateLimitingHandler:access() in kong/kong/plugins/rate-limiting/handler.lua	69	12	1