aws-samples / iot-reference-architectures
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
  • 10% duplication:
    • 4,760 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
    • 478 duplicated lines
  • 76 duplicates
system10% (478 lines)
Duplication per Extension
yaml46% (191 lines)
kts29% (148 lines)
java5% (139 lines)
Duplication per Component (primary)
cross-account-publish25% (148 lines)
dynamodb-api8% (81 lines)
cloudwatch-events38% (78 lines)
serverless-ui4% (73 lines)
cbor-stack27% (36 lines)
amazon-ion-stack26% (30 lines)
mqtt-over-websockets-jitpack54% (19 lines)
results-iterator-jitpack39% (13 lines)
greengrass-v20% (0 lines)
tools0% (0 lines)
cross-account-register-ztp0% (0 lines)
partner-attribution0% (0 lines)

Duplication Between Components (50+ lines)

G cloudwatch-events cloudwatch-events cross-account-publish cross-account-publish cloudwatch-events--cross-account-publish 157 serverless-ui serverless-ui cross-account-publish--serverless-ui 62 amazon-ion-stack amazon-ion-stack cbor-stack cbor-stack amazon-ion-stack--cbor-stack 58

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Show more details on duplication between components...
Longest Duplicates
The list of 20 longest duplicates.
See data for all 76 duplicates...
Size#FoldersFilesLinesCode
25 x 2 cross-account-publish/c-sharp
cross-account-publish/python
customer-account.yaml
customer-account.yaml
 1:26 (89%)
1:26 (92%)
 view
18 x 2 amazon-ion-stack
cbor-stack
build.gradle.kts
build.gradle.kts
 1:29 (36%)
1:29 (36%)
 view
15 x 2 cloudwatch-events/python
cross-account-publish/python
customer-account.yaml
partner-account.yaml
 33:48 (20%)
25:39 (23%)
 view
14 x 2 cloudwatch-events/python
cloudwatch-events/python
customer-account.yaml
partner-account.yaml
 33:47 (18%)
46:59 (17%)
 view
14 x 2 cloudwatch-events/python
cross-account-publish/python
partner-account.yaml
partner-account.yaml
 46:59 (17%)
25:38 (22%)
 view
11 x 2 dynamodb-api/src/main/ja...t/dynamodb/api/handlers
dynamodb-api/src/main/ja...t/dynamodb/api/handlers
HandleIotGetEvent.java
HandleIotNextEvent.java
 55:73 (29%)
60:78 (25%)
 view
11 x 2 dynamodb-api/src/main/ja...t/dynamodb/api/handlers
dynamodb-api/src/main/ja...t/dynamodb/api/handlers
HandleIotDeleteEvent.java
HandleIotNextEvent.java
 42:60 (36%)
60:78 (25%)
 view
11 x 2 amazon-ion-stack
cbor-stack
build.gradle.kts
build.gradle.kts
 31:49 (22%)
31:49 (22%)
 view
11 x 2 dynamodb-api/src/main/ja...t/dynamodb/api/handlers
dynamodb-api/src/main/ja...t/dynamodb/api/handlers
HandleIotDeleteEvent.java
HandleIotGetEvent.java
 42:60 (36%)
55:73 (29%)
 view
9 x 2 cross-account-publish/c-sharp
cross-account-publish/python
partner-account.yaml
partner-account.yaml
 20:28 (28%)
32:40 (14%)
 view
9 x 2 cross-account-publish/c-sharp
cross-account-publish/python
partner-account.yaml
partner-account.yaml
 10:18 (28%)
22:30 (14%)
 view
9 x 2 amazon-ion-stack
cross-account-publish/certificate-based-stack
build.gradle.kts
build.gradle.kts
 21:32 (18%)
28:40 (13%)
 view
9 x 2 cloudwatch-events/python
cross-account-publish/python
partner-account.yaml
partner-account.yaml
 71:80 (11%)
54:63 (14%)
 view
9 x 2 cloudwatch-events/python
cross-account-publish/python
customer-account.yaml
partner-account.yaml
 54:62 (12%)
41:49 (14%)
 view
8 x 2 cloudwatch-events/python
cloudwatch-events/python
partner-account.yaml
partner-account.yaml
 32:39 (10%)
53:60 (10%)
 view
8 x 2 serverless-ui/jwt-stack/...ples/client/attribution
serverless-ui/jwt-stack/...wssamples/client/create
AttributionPresenter.java
CreatePresenter.java
 33:44 (36%)
134:145 (10%)
 view
8 x 2 cloudwatch-events/python
cross-account-publish/python
partner-account.yaml
customer-account.yaml
 32:39 (10%)
20:27 (29%)
 view
8 x 2 cloudwatch-events/python
cross-account-publish/c-sharp
customer-account.yaml
partner-account.yaml
 40:48 (10%)
20:27 (25%)
 view
8 x 2 cloudwatch-events/python
cross-account-publish/python
partner-account.yaml
customer-account.yaml
 53:60 (10%)
20:27 (29%)
 view
8 x 2 cloudwatch-events/python
cloudwatch-events/python
customer-account.yaml
partner-account.yaml
 53:60 (10%)
61:68 (10%)
 view