elastic / apm-agent-nodejs - 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).

Learn more...

Conditional Complexity Overall

There are 997 units with 15,623 lines of code in units (82.5% of code).

0 very complex units (0 lines of code)
11 complex units (1,184 lines of code)
67 medium complex units (3,873 lines of code)
123 simple units (3,657 lines of code)
796 very simple units (6,909 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
function wrapRequest() in lib/instrumentation/modules/@elastic/elasticsearch.js	153	45	1
Client.prototype.config = function() in lib/apm-client/http-apm-client/index.js	87	38	1
function sqsMiddlewareFactory() in lib/instrumentation/modules/@aws-sdk/client-sqs.js	119	37	2
onValue() in lib/apm-client/http-apm-client/truncate.js	82	33	3
function s3MiddlewareFactory() in lib/instrumentation/modules/@aws-sdk/client-s3.js	121	33	2
Agent.prototype.captureError = function() in lib/agent.js	117	33	3
function snsMiddlewareFactory() in lib/instrumentation/modules/@aws-sdk/client-sns.js	101	31	2
function contextLength() in lib/apm-client/http-apm-client/truncate.js	61	29	2
_spanCompatMapping() in lib/opentelemetry-bridge/OTelSpan.js	70	28	0
function getChoppedStreamHandler() in lib/apm-client/http-apm-client/index.js	209	27	2
Span.prototype._inferServiceTargetAndDestinationService = function() in lib/instrumentation/span.js	64	26	0
constructor() in lib/instrumentation/azure-functions.js	103	25	3
function instrument() in lib/instrumentation/azure-functions.js	133	25	1
async function frameFromCallSite() in lib/stacktraces.js	120	23	5
function elasticApmAwsLambda() in lib/lambda.js	112	23	1
function dynamoDBMiddlewareFactory() in lib/instrumentation/modules/@aws-sdk/client-dynamodb.js	81	23	2
constructor() in lib/config/config.js	81	22	2
onValue() in lib/apm-client/http-apm-client/truncate.js	55	22	3
function createApmClient() in lib/apm-client/apm-client.js	88	22	2
function instrumentUndici() in lib/instrumentation/modules/undici.js	96	22	1
function getContextFromRequest() in lib/parsers.js	62	20	3
exports.traceOutgoingRequest = function() in lib/instrumentation/http-shared.js	79	20	3
function extractDetails() in lib/instrumentation/modules/graphql.js	45	20	2
startSpan() in lib/opentelemetry-bridge/OTelTracer.js	91	20	3
function bitrot() in dev-utils/bitrot.js	110	19	1
function metadataFromConf() in lib/apm-client/http-apm-client/index.js	81	18	2
Agent.prototype.start = function() in lib/agent.js	87	18	1
function createAPMError() in lib/errors.js	87	17	2
function loadSupportedDoc() in dev-utils/bitrot.js	73	16	0
function secondsFromDuration() in lib/config/normalizers.js	65	16	6
function setApiGatewayData() in lib/lambda.js	88	16	6
function wrapEachMessage() in lib/instrumentation/modules/kafkajs.js	64	16	1
function wrapProducerSendBatch() in lib/instrumentation/modules/kafkajs.js	57	16	1
function wrapQuery() in lib/instrumentation/modules/mysql2.js	67	16	1
function wrapExecute() in lib/instrumentation/modules/graphql.js	65	16	1
function agentActivationMethodFromStartStack() in lib/activation-method.js	57	16	2
function Client() in lib/apm-client/http-apm-client/index.js	87	15	1
Transaction.prototype.toJSON = function() in lib/instrumentation/transaction.js	53	15	0
module.exports = function() in lib/instrumentation/modules/@smithy/smithy-client.js	68	15	5
function getTargetUrlFromTransportConfig() in lib/instrumentation/modules/elasticsearch.js	35	15	1
function findPkgInfo() in lib/config/config.js	45	14	0
function destroyStream() in lib/apm-client/http-apm-client/index.js	24	14	1
Instrumentation.prototype.start = function() in lib/instrumentation/index.js	57	14	1
Instrumentation.prototype.addEndedSpan = function() in lib/instrumentation/index.js	51	14	1
function Transaction() in lib/instrumentation/transaction.js	56	14	3
function setTransDataFromHttpTriggerResult() in lib/instrumentation/azure-functions.js	57	14	2
function wrapRequest() in lib/instrumentation/modules/elasticsearch.js	48	14	1
function wrapQuery() in lib/instrumentation/modules/pg.js	82	14	2
function wrapQuery() in lib/instrumentation/modules/mysql.js	63	14	1
makeRequest() in lib/instrumentation/modules/tedious.js	51	14	3