twitter / finagleDuplication

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

6% duplication:

68,205 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
4,240 duplicated lines

646 duplicates

dependency graphs: 2D graph | 3D graph | 3D graph (with duplicates)...

Duplication per Extension

Duplication per Component (primary)

Duplication Between Components (50+ lines)

Download: SVG DOT (open online Graphviz editor)

From Component --> To Component	Duplicated Lines	File Pairs	Details
finagle-thrift (1%) --> finagle-thriftmux (8%)	174	2 file pairs	details...
finagle-memcached (1%) --> finagle-thrift (<1%)	82	1 file pair	details...
finagle-base-http (1%) --> finagle-core (<1%)	78	1 file pair	details...
finagle-redis (<1%) --> finagle-thrift (<1%)	60	1 file pair	details...
finagle-http (1%) --> finagle-memcached (1%)	60	1 file pair	details...
finagle-http (1%) --> finagle-thrift (<1%)	60	1 file pair	details...
finagle-memcached (1%) --> finagle-redis (<1%)	52	2 file pairs	details...
finagle-mysql (<1%) --> finagle-thrift (<1%)	52	1 file pair	details...

Open 2D force graph... Open 3D force graph...

Show more details on duplication between components...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 646 duplicates...

Size	#	Folders	Files	Lines	Code
62	x 2	finagle-thrift/src/main/.../twitter/finagle/thrift finagle-thrift/src/main/.../twitter/finagle/thrift	RichClientParam.scala RichServerParam.scala	115:203 (35%) 63:151 (69%)	view
29	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ConnectionOptions.java UpgradeReply.java	24:81 (21%) 23:80 (21%)	view
25	x 2	finagle-benchmark/src/ma...om/twitter/finagle/http finagle-benchmark/src/ma...om/twitter/finagle/http	HeaderMapBenchmark.scala HeaderMapBenchmark.scala	27:52 (29%) 68:94 (29%)	view
21	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Annotation.java BinaryAnnotation.java	427:459 (5%) 569:601 (4%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ClientId.java ConnectionOptions.java	44:86 (9%) 40:80 (15%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ConnectionOptions.java ResponseHeader.java	40:80 (15%) 50:92 (5%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ClientId.java UpgradeReply.java	44:86 (9%) 39:79 (15%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ClientId.java Delegation.java	44:86 (9%) 48:90 (6%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ClientId.java RequestContext.java	44:86 (9%) 48:90 (6%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ConnectionOptions.java RequestContext.java	40:80 (15%) 48:90 (6%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Delegation.java UpgradeReply.java	48:90 (6%) 39:79 (15%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Delegation.java ResponseHeader.java	48:90 (6%) 50:92 (5%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	RequestContext.java UpgradeReply.java	48:90 (6%) 39:79 (15%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	RequestContext.java ResponseHeader.java	48:90 (6%) 50:92 (5%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Delegation.java RequestContext.java	48:90 (6%) 48:90 (6%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ConnectionOptions.java Delegation.java	40:80 (15%) 48:90 (6%)	view
20	x 2	doc/src/sphinx/code/client-server-anatomy/netty3 doc/src/sphinx/code/client-server-anatomy/netty4	Pipeline.scala Pipeline.scala	7:40 (100%) 7:40 (100%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ClientId.java ResponseHeader.java	44:86 (9%) 50:92 (5%)	view
20	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ResponseHeader.java UpgradeReply.java	50:92 (5%) 39:79 (15%)	view
19	x 2	finagle-mysql/src/main/s...m/twitter/finagle/mysql finagle-mysql/src/main/s...m/twitter/finagle/mysql	Request.scala Request.scala	324:342 (6%) 355:373 (6%)	view
19	x 2	finagle-thrift/src/main/scala/com/twitter/finagle finagle-thriftmux/src/ma...ala/com/twitter/finagle	Thrift.scala ThriftMux.scala	490:509 (5%) 427:446 (5%)	view
18	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Annotation.java BinaryAnnotation.java	61:97 (4%) 93:129 (3%)	view
18	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Annotation.java BinaryAnnotation.java	383:413 (4%) 513:543 (3%)	view
18	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	RequestHeader.java Span.java	89:129 (1%) 82:122 (2%)	view
18	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	BinaryAnnotation.java RequestContext.java	412:432 (3%) 267:287 (5%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ClientId.java RequestHeader.java	44:79 (8%) 89:124 (1%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Annotation.java ClientId.java	62:97 (4%) 44:79 (8%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Annotation.java RequestContext.java	62:97 (4%) 48:83 (5%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Annotation.java Span.java	62:97 (4%) 82:117 (2%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	BinaryAnnotation.java RequestContext.java	481:504 (3%) 310:333 (5%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ClientId.java Endpoint.java	44:79 (8%) 59:94 (4%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ConnectionOptions.java Endpoint.java	40:75 (12%) 59:94 (4%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	RequestContext.java Span.java	48:83 (5%) 82:117 (2%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	RequestHeader.java ResponseHeader.java	89:124 (1%) 50:85 (4%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	BinaryAnnotation.java UpgradeReply.java	94:129 (3%) 39:74 (12%)	view
17	x 2	finagle-core/src/main/sc...twitter/finagle/service finagle-core/src/main/sc...twitter/finagle/service	ExpiringService.scala ExpiringService.scala	28:46 (14%) 76:94 (14%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	BinaryAnnotation.java Endpoint.java	94:129 (3%) 59:94 (4%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Endpoint.java ResponseHeader.java	59:94 (4%) 50:85 (4%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Annotation.java ConnectionOptions.java	62:97 (4%) 40:75 (12%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	BinaryAnnotation.java RequestHeader.java	94:129 (3%) 89:124 (1%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	BinaryAnnotation.java Delegation.java	94:129 (3%) 48:83 (5%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Annotation.java ResponseHeader.java	62:97 (4%) 50:85 (4%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	RequestContext.java RequestHeader.java	48:83 (5%) 89:124 (1%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ClientId.java Span.java	44:79 (8%) 82:117 (2%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Annotation.java UpgradeReply.java	62:97 (4%) 39:74 (12%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ConnectionOptions.java RequestHeader.java	40:75 (12%) 89:124 (1%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Endpoint.java Span.java	59:94 (4%) 82:117 (2%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	BinaryAnnotation.java ResponseHeader.java	94:129 (3%) 50:85 (4%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Endpoint.java UpgradeReply.java	59:94 (4%) 39:74 (12%)	view
17	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	Delegation.java Span.java	48:83 (5%) 82:117 (2%)	view

Duplicated Units

The list of top 6 duplicated units.

See data for all 6 unit duplicates...

Size	#	Folders	Files	Lines	Code
28	x 2	finagle-thrift/src/main/.../twitter/finagle/thrift finagle-thrift/src/main/.../twitter/finagle/thrift	RichServerParam.scala RichClientParam.scala	83:116 135:168	view
22	x 2	finagle-thrift/src/main/.../twitter/finagle/thrift finagle-thrift/src/main/.../twitter/finagle/thrift	RichServerParam.scala RichClientParam.scala	129:154 181:206	view
16	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ConnectionOptions.java UpgradeReply.java	210:229 209:228	view
6	x 2	finagle-core/src/main/sc...witter/finagle/dispatch finagle-base-http/src/ma...om/twitter/finagle/http	ServerDispatcher.scala GenStreamingSerialServerDispatcher.scala	45:61 54:70	view
6	x 4	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	RequestHeader.java Endpoint.java Span.java Annotation.java	1023:1031 437:445 865:873 458:466	view
6	x 2	finagle-thrift/src/main/...r/finagle/thrift/thrift finagle-thrift/src/main/...r/finagle/thrift/thrift	ConnectionOptions.java UpgradeReply.java	114:122 113:121	view