awslabs / smithy
Duplication

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.
Learn more...
Duplication Overall
  • 4% duplication:
    • 37,530 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
    • 1,826 duplicated lines
  • 255 duplicates
system4% (1,826 lines)
Duplication per Extension
java4% (1,826 lines)
Duplication per Component (primary)
smithy-model2% (433 lines)
smithy-openapi8% (309 lines)
smithy-build10% (227 lines)
smithy-diff13% (146 lines)
smithy-aws-apigateway-traits20% (139 lines)
smithy-jmespath6% (124 lines)
smithy-utils7% (124 lines)
smithy-aws-apigateway-openapi9% (89 lines)
smithy-aws-cloudformation7% (68 lines)
smithy-aws-traits3% (64 lines)
smithy-cli3% (37 lines)
smithy-linters4% (24 lines)
smithy-waiters2% (18 lines)
smithy-aws-iam-traits3% (12 lines)
smithy-codegen-core<1% (12 lines)
smithy-aws-cloudformation-traits0% (0 lines)
smithy-jsonschema0% (0 lines)
smithy-mqtt-traits0% (0 lines)

Duplication Between Components (50+ lines)

G smithy-aws-apigateway-openapi smithy-aws-apigateway-openapi smithy-openapi smithy-openapi smithy-aws-apigateway-openapi--smithy-openapi 127 smithy-jmespath smithy-jmespath smithy-utils smithy-utils smithy-jmespath--smithy-utils 66

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Show more details on duplication between components...
Longest Duplicates
The list of 20 longest duplicates.
See data for all 255 duplicates...
Size#FoldersFilesLinesCode
31 x 2 smithy-aws-apigateway-tr...y/aws/apigateway/traits
smithy-aws-apigateway-tr...y/aws/apigateway/traits
IntegrationTrait.java
MockIntegrationTrait.java
 565:676 (14%)
220:331 (31%)
 view
26 x 2 smithy-aws-cloudformatio...dformation/schema/model
smithy-aws-cloudformatio...dformation/schema/model
Remote.java
ResourceSchema.java
 89:128 (44%)
262:301 (9%)
 view
17 x 2 smithy-openapi/src/main/...pi/fromsmithy/protocols
smithy-openapi/src/main/...pi/fromsmithy/protocols
HeaderSchemaVisitor.java
QuerySchemaVisitor.java
 43:69 (42%)
41:67 (47%)
 view
16 x 2 smithy-diff/src/main/jav.../smithy/diff/evaluators
smithy-model/src/main/ja...smithy/model/validation
AbstractDiffEvaluator.java
AbstractValidator.java
 40:69 (66%)
31:60 (59%)
 view
16 x 2 smithy-jmespath/src/main.../amazon/smithy/jmespath
smithy-utils/src/main/ja...are/amazon/smithy/utils
Lexer.java
SimpleParser.java
 202:222 (3%)
258:278 (13%)
 view
12 x 2 smithy-aws-apigateway-tr...y/aws/apigateway/traits
smithy-aws-apigateway-tr...y/aws/apigateway/traits
IntegrationTrait.java
MockIntegrationTrait.java
 248:299 (5%)
94:145 (12%)
 view
12 x 2 smithy-build/src/main/ja...smithy/build/transforms
smithy-build/src/main/ja...smithy/build/transforms
ExcludeTraitsByTag.java
IncludeTraitsByTag.java
 71:86 (42%)
71:86 (42%)
 view
12 x 2 smithy-linters/src/main/...e/amazon/smithy/linters
smithy-linters/src/main/...e/amazon/smithy/linters
RepeatedShapeNameValidator.java
StutteredShapeNameValidator.java
 65:78 (25%)
40:53 (46%)
 view
11 x 2 smithy-build/src/main/ja...smithy/build/transforms
smithy-build/src/main/ja...smithy/build/transforms
ExcludeMetadata.java
IncludeMetadata.java
 33:59 (50%)
33:59 (50%)
 view
11 x 2 smithy-openapi/src/main/...on/smithy/openapi/model
smithy-openapi/src/main/...on/smithy/openapi/model
MediaTypeObject.java
ParameterObject.java
 102:118 (15%)
244:260 (6%)
 view
11 x 2 smithy-model/src/main/ja...zon/smithy/model/traits
smithy-model/src/main/ja...zon/smithy/model/traits
LengthTrait.java
RangeTrait.java
 59:78 (22%)
60:79 (22%)
 view
11 x 2 smithy-build/src/main/ja...smithy/build/transforms
smithy-build/src/main/ja...smithy/build/transforms
ExcludeTags.java
IncludeShapesByTag.java
 32:60 (57%)
37:65 (45%)
 view
11 x 2 smithy-build/src/main/ja...smithy/build/transforms
smithy-build/src/main/ja...smithy/build/transforms
ExcludeTags.java
IncludeTraitsByTag.java
 32:60 (57%)
40:67 (39%)
 view
11 x 2 smithy-build/src/main/ja...smithy/build/transforms
smithy-build/src/main/ja...smithy/build/transforms
ExcludeTraits.java
IncludeTraits.java
 46:78 (35%)
46:78 (34%)
 view
11 x 2 smithy-aws-apigateway-op.../aws/apigateway/openapi
smithy-aws-apigateway-op.../aws/apigateway/openapi
AddIntegrations.java
AddRequestValidators.java
 44:56 (21%)
61:73 (22%)
 view
11 x 2 smithy-build/src/main/ja...smithy/build/transforms
smithy-build/src/main/ja...smithy/build/transforms
ExcludeTags.java
IncludeTags.java
 32:60 (57%)
33:61 (57%)
 view
11 x 2 smithy-build/src/main/ja...smithy/build/transforms
smithy-build/src/main/ja...smithy/build/transforms
ExcludeTraitsByTag.java
IncludeTags.java
 41:67 (39%)
33:61 (57%)
 view
11 x 2 smithy-build/src/main/ja...smithy/build/transforms
smithy-build/src/main/ja...smithy/build/transforms
ExcludeShapesByTag.java
IncludeShapesByTag.java
 36:64 (45%)
37:65 (45%)
 view
11 x 2 smithy-build/src/main/ja...smithy/build/transforms
smithy-build/src/main/ja...smithy/build/transforms
IncludeShapesByTag.java
IncludeTraitsByTag.java
 37:65 (45%)
40:67 (39%)
 view
11 x 2 smithy-build/src/main/ja...smithy/build/transforms
smithy-build/src/main/ja...smithy/build/transforms
ExcludeTags.java
ExcludeTraitsByTag.java
 32:60 (57%)
41:67 (39%)
 view
Duplicated Units
The list of top 15 duplicated units.
See data for all 15 unit duplicates...
Size#FoldersFilesLinesCode
20 x 2 smithy-jmespath/src/main.../amazon/smithy/jmespath
smithy-utils/src/main/ja...are/amazon/smithy/utils
Lexer.java
SimpleParser.java
 201:223 
257:279 
 view
17 x 2 smithy-diff/src/main/jav.../smithy/diff/evaluators
smithy-diff/src/main/jav.../smithy/diff/evaluators
AddedOperationError.java
AddedServiceError.java
 39:58 
39:58 
 view
14 x 2 smithy-jmespath/src/main.../amazon/smithy/jmespath
smithy-utils/src/main/ja...are/amazon/smithy/utils
Lexer.java
SimpleParser.java
 179:195 
177:193 
 view
10 x 2 smithy-jmespath/src/main.../amazon/smithy/jmespath
smithy-utils/src/main/ja...are/amazon/smithy/utils
Lexer.java
SimpleParser.java
 237:248 
317:328 
 view
8 x 2 smithy-openapi/src/main/...ithy/openapi/fromsmithy
smithy-openapi/src/main/...ithy/openapi/fromsmithy
OpenApiMapper.java
OpenApiMapper.java
 87:95 
110:118 
 view
7 x 2 smithy-jmespath/src/main.../amazon/smithy/jmespath
smithy-jmespath/src/main.../amazon/smithy/jmespath
ExpressionSerializer.java
ExpressionSerializer.java
 237:245 
248:256 
 view
7 x 2 smithy-linters/src/main/...e/amazon/smithy/linters
smithy-linters/src/main/...e/amazon/smithy/linters
RepeatedShapeNameValidator.java
StutteredShapeNameValidator.java
 66:73 
41:48 
 view
7 x 2 smithy-model/src/main/ja...zon/smithy/model/traits
smithy-model/src/main/ja...zon/smithy/model/traits
LengthTrait.java
RangeTrait.java
 35:42 
36:43 
 view
6 x 2 smithy-jmespath/src/main.../amazon/smithy/jmespath
smithy-utils/src/main/ja...are/amazon/smithy/utils
Lexer.java
SimpleParser.java
 156:163 
135:142 
 view
6 x 2 smithy-jmespath/src/main.../amazon/smithy/jmespath
smithy-utils/src/main/ja...are/amazon/smithy/utils
Lexer.java
SimpleParser.java
 165:172 
150:157 
 view
6 x 2 smithy-aws-traits/src/ma...mazon/smithy/aws/traits
smithy-aws-traits/src/ma...mazon/smithy/aws/traits
SdkServiceIdValidator.java
EventSourceValidator.java
 71:77 
44:50 
 view
6 x 2 smithy-openapi/src/main/...ithy/openapi/fromsmithy
smithy-aws-apigateway-op.../aws/apigateway/openapi
Context.java
AddCorsPreflightIntegration.java
 231:237 
150:156 
 view
6 x 3 smithy-openapi/src/main/...api/fromsmithy/security
smithy-openapi/src/main/...api/fromsmithy/security
smithy-openapi/src/main/...api/fromsmithy/security
HttpDigestConverter.java
HttpBearerConverter.java
HttpBasicConverter.java
 36:42 
36:42 
36:42 
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6 x 2 smithy-model/src/jmh/jav...amazon/smithy/model/jmh
smithy-model/src/jmh/jav...amazon/smithy/model/jmh
Selectors.java
Selectors.java
 63:69 
71:77 
 view
6 x 2 smithy-model/src/main/ja...mazon/smithy/model/node
smithy-model/src/main/ja...mazon/smithy/model/node
DefaultNodeSerializers.java
DefaultNodeSerializers.java
 220:226 
237:243 
 view