Places in code with 6 or more lines that are exactly the same.
Intro
- For duplication, we look at places in code where there are 6 or more lines of code that are exactly the same.
- Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
- You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.
- To learn more about duplications and techniques for eliminating duplication, Sokrates recommends the following resources:
- Avoid Repetition, MartinFlower.com (IEEE Software article)
- Refactoring duplicated code, sourcemaking.com
- Beck Design Rules, MartinFowler.com
- DRY (Don't Repeat Yourself) Principle, Wikipedia
- The Cut-and-Paste Programming Software Development Anti-Pattern, sourcemaking.com
- Code Smells / Duplicated Code, Jeff Atwood, codinghorror.com:
- "Duplicated code is the bane of software development. Stamp out duplication whenever possible. You should always be on the lookout for more subtle cases of near-duplication, too. Don't Repeat Yourself!"
- Reducing Coupling, MartinFlower.com (IEEE Software article):
- "There are several ways to describe coupling, but it boils down to this: If changing one module in a program requires changing another module, then coupling exists. ... Duplication always implies coupling, because changing one piece of duplicate code implies changing the other."
Duplication Overall
- 11% duplication:
- 16,263 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 1,941 duplicated lines
- 134 duplicates
Duplication per Extension
Duplication per Component (primary)
Duplication Between Components (50+ lines)
Open 3D force graph...
Show more details on duplication between components...
From Component
--> To Component
Duplicated
Lines
File Pairs
Details
neptune-export (<1%)
--> neptune-gremlin-client (1%)
54
2 file pairs
details...
| From Component --> To Component |
Duplicated Lines |
File Pairs | Details |
|---|---|---|---|
| neptune-export (<1%) --> neptune-gremlin-client (1%) |
54 | 2 file pairs | details... |
Longest Duplicates
The list of 20 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 38 | x 2 | neptune-export/src/main/...une/profiles/neptune_mlneptune-export/src/main/...une/profiles/neptune_ml |  NeptuneMachineLearningExportEventHand...NeptuneMachineLearningExportEventHand... |
180:233 (31%)189:242 (27%) | view |
| 32 | x 2 | neptune-export/src/main/...zonaws/services/neptuneneptune-export/src/main/...ws/services/neptune/cli | AddClone.javaCloneClusterModule.java |
43:75 (54%)32:64 (50%) | view |
| 31 | x 2 | neptune-export/src/main/...services/neptune/rdf/ioneptune-export/src/main/...services/neptune/rdf/io | NeptuneStreamsJsonNQuadsWriter.javaNeptuneStreamsSimpleJsonNQuadsWriter.... |
38:92 (52%)41:95 (31%) | view |
| 30 | x 2 | neptune-export/src/main/...eptune/propertygraph/ioneptune-export/src/main/...eptune/propertygraph/io | NeptuneStreamsJsonPropertyGraphPrinte...NeptuneStreamsSimpleJsonPropertyGraph... |
61:108 (34%)62:109 (35%) | view |
| 19 | x 2 | neptune-export/src/main/.../profiles/neptune_ml/v1neptune-export/src/main/.../profiles/neptune_ml/v2 | PropertyGraphTrainingDataConfigWriter...PropertyGraphTrainingDataConfigWriter... |
35:61 (4%)36:62 (4%) | view |
| 18 | x 2 | neptune-export/src/main/...s/neptune/propertygraphneptune-export/src/main/...s/neptune/propertygraph | AllLabels.javaSpecifiedLabels.java |
50:80 (41%)131:161 (18%) | view |
| 17 | x 2 | neptune-export/src/main/...une/profiles/neptune_mlneptune-export/src/main/...une/profiles/neptune_ml | NeptuneMachineLearningExportEventHand...NeptuneMachineLearningExportEventHand... |
67:85 (14%)59:77 (12%) | view |
| 17 | x 2 | neptune-export/src/main/...zonaws/services/neptuneneptune-export/src/main/...zonaws/services/neptune | ExportPropertyGraph.javaExportPropertyGraphFromConfig.java |
102:122 (20%)84:104 (26%) | view |
| 16 | x 2 | glue-neptune/glue_neptuneneptune-python-utils/neptune_python_utils |  GremlinCsvTransforms.pyglue_gremlin_csv_transforms.py |
30:62 (94%)21:53 (94%) | view |
| 16 | x 2 | neptune-export/src/main/...services/neptune/rdf/ioneptune-export/src/main/...services/neptune/rdf/io | EnhancedNQuadsWriter.javaEnhancedTurtleWriter.java |
32:55 (64%)33:57 (61%) | view |
| 16 | x 2 | neptune-gremlin-client/g...software/amazon/neptuneneptune-gremlin-client/g...software/amazon/neptune | RefreshAgentDemo.javaRollingSubsetOfEndpointDemo.java |
48:67 (21%)49:68 (21%) | view |
| 16 | x 2 | neptune-export/src/main/...ervices/neptune/clusterneptune-gremlin-client/g.../amazon/neptune/cluster | NeptuneClusterMetadata.javaGetEndpointsFromNeptuneManagementApi.... |
76:94 (11%)109:127 (14%) | view |
| 15 | x 2 | neptune-export/src/main/...ervices/neptune/clusterneptune-export/src/main/...ervices/neptune/cluster | DoNotCloneCluster.javaSimulatedCloneCluster.java |
30:52 (68%)32:54 (62%) | view |
| 15 | x 2 | neptune-export/src/main/...zonaws/services/neptuneneptune-export/src/main/...zonaws/services/neptune | ExportPropertyGraph.javaExportPropertyGraphFromConfig.java |
54:75 (18%)44:65 (23%) | view |
| 14 | x 2 | neptune-export/src/main/...eptune/propertygraph/ioneptune-export/src/main/...eptune/propertygraph/io | RewriteAndMergeCsv.javaRewriteCsv.java |
77:97 (14%)76:96 (14%) | view |
| 14 | x 2 | neptune-export/src/main/...eptune/propertygraph/ioneptune-export/src/main/...eptune/propertygraph/io | NeptuneStreamsJsonPropertyGraphPrinte...NeptuneStreamsSimpleJsonPropertyGraph... |
112:134 (15%)114:136 (16%) | view |
| 12 | x 2 | neptune-export/src/main/...ervices/neptune/clusterneptune-export/src/main/...ervices/neptune/cluster | EventId.javaStreamRecordsNotFoundExceptionParser.... |
25:42 (54%)24:41 (44%) | view |
| 12 | x 2 | neptune-export/src/main/...s/neptune/propertygraphneptune-export/src/main/...s/neptune/propertygraph | Scope.javaScope.java |
86:97 (8%)127:138 (8%) | view |
| 12 | x 2 | neptune-export/src/main/...s/neptune/propertygraphneptune-export/src/main/...s/neptune/propertygraph | EdgesClient.javaNodesClient.java |
116:134 (13%)114:132 (13%) | view |
| 11 | x 2 | neptune-export/src/main/...eptune/propertygraph/ioneptune-export/src/main/...eptune/propertygraph/io | JsonPropertyGraphPrinter.javaVariableRowCsvPropertyGraphPrinter.java |
156:172 (9%)101:117 (16%) | view |
Duplicated Units
The list of top 18 duplicated units.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 19 | x 2 | neptune-export/src/main/...une/profiles/neptune_mlneptune-export/src/main/...une/profiles/neptune_ml | NeptuneMachineLearningExportEventHand...NeptuneMachineLearningExportEventHand... |
202:228 193:219 | view |
| 17 | x 2 | neptune-export/src/main/...eptune/propertygraph/ioneptune-export/src/main/...eptune/propertygraph/io | NeptuneStreamsSimpleJsonPropertyGraph...NeptuneStreamsJsonPropertyGraphPrinte... |
68:89 67:88 | view |
| 12 | x 2 | neptune-export/src/main/...services/neptune/rdf/ioneptune-export/src/main/...services/neptune/rdf/io | EnhancedTurtleWriter.javaEnhancedNQuadsWriter.java |
39:55 38:53 | view |
| 11 | x 2 | neptune-export/src/main/...ptune_ml/common/parsingneptune-export/src/main/...ptune_ml/common/parsing | ParseSubject.javaParseObject.java |
27:38 27:38 | view |
| 10 | x 2 | neptune-export/src/main/...eptune/propertygraph/ioneptune-export/src/main/...eptune/propertygraph/io | PropertyGraphExportFormat.javaPropertyGraphExportFormat.java |
84:94 124:134 | view |
| 10 | x 2 | neptune-export/src/main/...s/services/neptune/utilneptune-export/src/main/...s/services/neptune/util | Timer.javaTimer.java |
53:64 70:81 | view |
| 9 | x 2 | neptune-export/src/main/...s/services/neptune/utilneptune-export/src/main/...s/services/neptune/util | Timer.javaTimer.java |
21:31 37:47 | view |
| 8 | x 2 | neptune-export/src/main/...s/neptune/propertygraphneptune-export/src/main/...s/neptune/propertygraph | NodesClient.javaEdgesClient.java |
48:56 47:55 | view |
| 8 | x 2 | neptune-export/src/main/...s/neptune/propertygraphneptune-export/src/main/...s/neptune/propertygraph | NodesClient.javaEdgesClient.java |
120:129 122:131 | view |
| 8 | x 2 | neptune-export/src/main/...s/services/neptune/utilneptune-export/src/main/...s/services/neptune/util | Timer.javaTimer.java |
83:91 93:101 | view |
| 7 | x 2 | neptune-export/src/main/...services/neptune/rdf/ioneptune-export/src/main/...services/neptune/rdf/io | NeptuneStreamsJsonNQuadsWriter.javaNeptuneStreamsSimpleJsonNQuadsWriter.... |
37:44 40:47 | view |
| 7 | x 2 | neptune-export/src/main/...une/profiles/neptune_mlneptune-export/src/main/...une/profiles/neptune_ml | NeptuneMachineLearningExportEventHand...NeptuneMachineLearningExportEventHand... |
230:237 221:228 | view |
| 7 | x 2 | neptune-export/src/main/...aws/services/neptune/ioneptune-export/src/main/...aws/services/neptune/io | DirectoryStructure.javaDirectoryStructure.java |
56:63 67:74 | view |
| 6 | x 2 | neptune-export/src/main/...eptune/propertygraph/ioneptune-export/src/main/...eptune/propertygraph/io | RewriteCsv.javaRewriteAndMergeCsv.java |
45:51 46:52 | view |
| 6 | x 2 | neptune-export/src/main/...eptune/propertygraph/ioneptune-export/src/main/...eptune/propertygraph/io | RewriteCsv.javaRewriteAndMergeCsv.java |
54:62 55:63 | view |
| 6 | x 3 | neptune-export/src/main/...s/neptune_ml/v1/parsingneptune-export/src/main/...s/neptune_ml/v2/parsingneptune-export/src/main/...s/neptune_ml/v2/parsing | ParseBucketCountV1.javaParseMinDfV2.javaParseMaxFeaturesV2.java |
29:35 29:35 29:35 | view |
| 6 | x 2 | neptune-export/src/main/...s/neptune_ml/v1/parsingneptune-export/src/main/...s/neptune_ml/v2/parsing | ParseFeaturesV1.javaParseFeaturesV2.java |
139:145 278:284 | view |
| 6 | x 2 | neptune-export/src/main/.../profiles/neptune_ml/v1neptune-export/src/main/.../profiles/neptune_ml/v2 | PropertyGraphTrainingDataConfigWriter...PropertyGraphTrainingDataConfigWriter... |
161:167 359:365 | view |