• There are 445 files with units, with 43,124 lines of code.
• 2 very complex files (McCabe index sum 251+; 2,200 lines of code)
• 3 complex files (McCabe index sum 126-250; 3,060 lines of code)
• 23 medium complex files (McCabe index sum 51-125; 8,467 lines of code)
• 33 slightly complex files (McCabe index sum 26-50; 9,730 lines of code)
• 384 simple files (McCabe index sum 1-25; 19,667 lines of code)
• 235 main files have no units (e.g. languages without unit analysis, or files without functions) and are not classified.

The McCabe index of a file grows with its size: per 100 lines tells a large but plain file from a dense one, and most complex unit whether the complexity sits in one unit or is spread over many.

File	# lines	# units	McCabe index (sum)	per 100 lines	most complex unit
PartitionParserTokenManager.java in metacat-common-server/src/main/java/com/netflix/metacat/common/server/partition/parser	1063	28	368	35	179
PartitionParser.java in metacat-common-server/src/main/java/com/netflix/metacat/common/server/partition/parser	1137	53	254	22	31
CatalogThriftHiveMetastore.java in metacat-thrift/src/main/java/com/netflix/metacat/thrift	1342	140	212	16	12
TableServiceImpl.java in metacat-main/src/main/java/com/netflix/metacat/main/services/impl	820	41	179	22	28
MysqlUserMetadataService.java in metacat-metadata-mysql/src/main/java/com/netflix/metacat/metadata/mysql	898	37	147	16	26
QualifiedName.java in metacat-common/src/main/java/com/netflix/metacat/common	436	37	114	26	10
DirectSqlGetPartition.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/sql	913	22	111	12	18
PostgreSqlTypeConverter.java in metacat-connector-postgresql/src/main/java/com/netflix/metacat/connector/postgresql	228	3	108	47	74
HiveConnectorTableService.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive	417	15	97	23	27
ElasticSearchUtilImpl.java in metacat-main/src/main/java/com/netflix/metacat/main/services/search	561	36	93	17	10
PartitionFilterGenerator.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/util	340	25	90	26	33
DefaultConfigImpl.java in metacat-common-server/src/main/java/com/netflix/metacat/common/server/properties	414	89	89	21	1
HiveConnectorPartitionService.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive	411	14	84	20	19
MetacatHMSHandler.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/metastore	380	26	84	22	12
HiveConnectorInfoConverter.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/converters	377	17	72	19	15
MySqlTypeConverter.java in metacat-connector-mysql/src/main/java/com/netflix/metacat/connector/mysql	170	2	70	41	35
SnowflakeTypeConverter.java in metacat-connector-snowflake/src/main/java/com/netflix/metacat/connector/snowflake	146	3	67	46	36
PartitionServiceImpl.java in metacat-main/src/main/java/com/netflix/metacat/main/services/impl	477	22	66	14	16
SimpleCharStream.java in metacat-common-server/src/main/java/com/netflix/metacat/common/server/partition/parser	355	33	65	18	10
CassandraTypeConverter.java in metacat-connector-cassandra/src/main/java/com/netflix/metacat/connector/cassandra	198	3	63	32	30
PolarisConnectorTableService.java in metacat-connector-polaris/src/main/java/com/netflix/metacat/connector/polaris	403	12	63	16	15
ElasticSearchRefresh.java in metacat-main/src/main/java/com/netflix/metacat/main/services/search	593	24	63	11	12
HiveConvertersImpl.java in metacat-thrift/src/main/java/com/netflix/metacat/thrift	346	14	62	18	14
PartitionParserEval.java in metacat-common-server/src/main/java/com/netflix/metacat/common/server/partition/visitor	252	29	62	25	11
RedshiftTypeConverter.java in metacat-connector-redshift/src/main/java/com/netflix/metacat/connector/redshift	140	3	61	44	30
S3ConnectorPartitionService.java in metacat-connector-s3/src/main/java/com/netflix/metacat/connector/s3	354	20	56	16	12
MySqlTagService.java in metacat-metadata-mysql/src/main/java/com/netflix/metacat/metadata/mysql	371	19	56	15	7
TypeSignature.java in metacat-common/src/main/java/com/netflix/metacat/common/type	185	6	51	28	31
HiveConnectorFastPartitionService.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/sql	263	13	49	19	10
MViewServiceImpl.java in metacat-main/src/main/java/com/netflix/metacat/main/services/impl	396	23	49	12	9
PartitionController.java in metacat-main/src/main/java/com/netflix/metacat/main/api/v1	1155	24	48	4	5
S3ConnectorInfoConverter.java in metacat-connector-s3/src/main/java/com/netflix/metacat/connector/s3	283	24	47	17	4
MySqlParentChildRelMetaDataService.java in metacat-metadata-mysql/src/main/java/com/netflix/metacat/metadata/mysql	388	24	47	12	7
IcebergFilterGenerator.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/util	163	17	42	26	7
HiveTypeConverter.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/converters	203	7	40	20	17
DirectSqlTable.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/sql	387	12	40	10	10
DirectSqlSavePartition.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/sql	381	14	40	10	8
EmbeddedHiveClient.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/client/embedded	257	26	39	15	5
IcebergTableHandler.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/iceberg	312	14	38	12	10
ConnectorManager.java in metacat-main/src/main/java/com/netflix/metacat/main/manager	227	22	38	17	7
HiveConnectorDatabaseService.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive	163	8	37	23	8
JdbcConnectorTableService.java in metacat-connector-jdbc/src/main/java/com/netflix/metacat/connector/jdbc/services	301	14	37	12	8
SNSNotificationServiceImpl.java in metacat-main/src/main/java/com/netflix/metacat/main/services/notifications/sns	391	14	37	9	6
MetacatHiveClient.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/client/thrift	301	26	36	12	3
S3ConnectorTableService.java in metacat-connector-s3/src/main/java/com/netflix/metacat/connector/s3	221	9	36	16	19
TableDto.java in metacat-common/src/main/java/com/netflix/metacat/common/dto	170	14	35	21	5
RequestWrapper.java in metacat-main/src/main/java/com/netflix/metacat/main/api	218	7	35	16	20
PolarisConnectorDatabaseService.java in metacat-connector-polaris/src/main/java/com/netflix/metacat/connector/polaris	191	8	32	17	11
MetacatController.java in metacat-main/src/main/java/com/netflix/metacat/main/api/v1	1013	24	32	3	3
HiveMetastoreClientFactory.java in metacat-connector-hive/src/main/java/com/netflix/metacat/connector/hive/client/thrift	163	19	31	19	5

• File complexity is the sum of the McCabe indexes (conditional complexity) of the units (methods, functions...) in a file.
• Files are classified in five categories based on that sum: 1-25 (simple files), 26-50 (slightly complex files), 51-125 (medium complex files), 126-250 (complex files), 251+ (very complex files). The default bands are five times the unit complexity bands, as a file is a group of units.
• Only main code files with units are classified. Files without units (languages without unit analysis, or files without functions) have no complexity to measure and are left out rather than counted as simple.
• A very complex file holds many decisions, which often means it has too many responsibilities: a candidate to split, and a place where changes need more testing.