apache / logging-log4j2
Components & Dependencies

An overview of source code logical components.

Intro

Logical decomposition is a representation of the organization of the main source code, where every and each file is put in exactly one logical component.

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Logical Decompositions Overview

Analyzed system has 1 logical decomposition:

Logical Decomposition #1: PRIMARY

The decompositions is based on the folder structure at level 1 (relative to the source code root).

Bubble Chart | Tree Map
Component Sizes (Lines of Code)
The "primary" logical decomposition has 37 components.
  • 3,431 files, 147,516 LOC (100.0% vs. main code).
  • "log4j-core" is biggest, containing 40.05% of LOC.
  • "log4j-spring-cloud-config" is smallest, containing 0.03% of LOC.


log4j-core59084 LOC (40%) 712 files
src32032 LOC (21%) 1,956 files
log4j-api13641 LOC (9%) 144 files
log4j-1.2-api11879 LOC (8%) 162 files
log4j-perf9077 LOC (6%) 124 files
log4j-layout-template-json6740 LOC (4%) 83 files
log4j-iostreams1788 LOC (1%) 26 files
log4j-flume-ng1700 LOC (1%) 11 files
log4j-jpa962 LOC (<1%) 18 files
log4j-slf4j2-impl823 LOC (<1%) 9 files
log4j-jul820 LOC (<1%) 13 files
log4j-web714 LOC (<1%) 13 files
log4j-jakarta-web714 LOC (<1%) 13 files
log4j-slf4j-impl680 LOC (<1%) 12 files
log4j-to-slf4j623 LOC (<1%) 8 files
log4j-taglib610 LOC (<1%) 20 files
log4j-docker608 LOC (<1%) 8 files
log4j-core-java9571 LOC (<1%) 16 files
log4j-jmx-gui495 LOC (<1%) 7 files
log4j-kubernetes486 LOC (<1%) 4 files
log4j-spring-boot406 LOC (<1%) 4 files
log4j-mongodb3401 LOC (<1%) 6 files
log4j-jdbc-dbcp2335 LOC (<1%) 2 files
log4j-to-jul310 LOC (<1%) 7 files
log4j-cassandra303 LOC (<1%) 4 files
log4j-jakarta-smtp277 LOC (<1%) 2 files
log4j-mongodb4251 LOC (<1%) 6 files
log4j-api-java9235 LOC (<1%) 17 files
log4j-appserver205 LOC (<1%) 4 files
log4j-jcl153 LOC (<1%) 4 files
log4j-couchdb149 LOC (<1%) 3 files
log4j-layout-template-json-test145 LOC (<1%) 2 files
log4j-jpl132 LOC (<1%) 3 files
log4j-core-test47 LOC (<1%) 2 files
ROOT42 LOC (<1%) 3 files
log4j-distribution39 LOC (<1%) 1 file
log4j-spring-cloud-config39 LOC (<1%) 2 files
Static Dependencies
Dependencies among components are static code dependencies among files in different components.
  • Analyzed system has 124 links (arrows) between components.
  • The number on the arrow represents the number of files from referring component that depend on files in referred component.
  • These 124 links contain 1710 dependencies.
  • There are 4 places (8 links) with cyclic dependencies (299 file dependencies).
G log4j-jdbc-dbcp2 log4j-jdbc-dbcp2 log4j-api-java9 log4j-api-java9 log4j-jdbc-dbcp2->log4j-api-java9 1 log4j-api log4j-api log4j-jdbc-dbcp2->log4j-api 1 log4j-appserver log4j-appserver log4j-perf log4j-perf log4j-appserver->log4j-perf 2 log4j-appserver->log4j-api-java9 2 log4j-appserver->log4j-api 2 log4j-jpl log4j-jpl log4j-jpl->log4j-perf 2 log4j-jpl->log4j-api-java9 2 log4j-jpl->log4j-api 2 log4j-1.2-api log4j-1.2-api log4j-1.2-api->log4j-perf 33 log4j-core-java9 log4j-core-java9 log4j-1.2-api->log4j-core-java9 12 log4j-1.2-api->log4j-api-java9 54 log4j-1.2-api->log4j-api 54 log4j-core log4j-core log4j-1.2-api->log4j-core 55 log4j-couchdb log4j-couchdb log4j-couchdb->log4j-perf 1 log4j-couchdb->log4j-api-java9 2 log4j-couchdb->log4j-api 2 log4j-couchdb->log4j-core 2 ROOT ROOT log4j-mongodb3 log4j-mongodb3 log4j-mongodb3->log4j-perf 3 log4j-mongodb3->log4j-api-java9 3 log4j-mongodb3->log4j-api 3 log4j-mongodb3->log4j-core 3 log4j-slf4j2-impl log4j-slf4j2-impl log4j-slf4j2-impl->log4j-perf 6 log4j-slf4j2-impl->log4j-api-java9 6 log4j-slf4j2-impl->log4j-api 6 log4j-flume-ng log4j-flume-ng log4j-flume-ng->log4j-perf 4 log4j-flume-ng->log4j-core-java9 5 log4j-flume-ng->log4j-api-java9 5 log4j-flume-ng->log4j-api 5 log4j-flume-ng->log4j-core 8 log4j-mongodb4 log4j-mongodb4 log4j-mongodb4->log4j-perf 3 log4j-mongodb4->log4j-api-java9 3 log4j-mongodb4->log4j-api 3 log4j-mongodb4->log4j-core 3 log4j-distribution log4j-distribution log4j-perf->log4j-1.2-api 3 log4j-perf->log4j-core-java9 23 log4j-perf->log4j-api-java9 18 log4j-perf->log4j-api 18 log4j-jpa log4j-jpa log4j-perf->log4j-jpa 2 log4j-perf->log4j-core 38 log4j-core-java9->log4j-api-java9 3 log4j-core-java9->log4j-api 3 log4j-layout-template-json log4j-layout-template-json log4j-layout-template-json->log4j-perf 10 log4j-layout-template-json->log4j-core-java9 5 log4j-layout-template-json->log4j-api-java9 19 log4j-layout-template-json->log4j-api 19 log4j-layout-template-json->log4j-core 54 log4j-jakarta-smtp log4j-jakarta-smtp log4j-jakarta-smtp->log4j-core-java9 2 log4j-jakarta-smtp->log4j-core 2 log4j-kubernetes log4j-kubernetes log4j-kubernetes->log4j-perf 3 log4j-kubernetes->log4j-api-java9 4 log4j-kubernetes->log4j-api 4 log4j-cassandra log4j-cassandra log4j-cassandra->log4j-core-java9 2 log4j-cassandra->log4j-core 3 log4j-jpa->log4j-perf 7 log4j-jpa->log4j-core-java9 6 log4j-jpa->log4j-api-java9 14 log4j-jpa->log4j-api 14 log4j-jpa->log4j-core 7 log4j-jul log4j-jul log4j-jul->log4j-perf 10 log4j-jul->log4j-api-java9 10 log4j-jul->log4j-api 10 log4j-web log4j-web log4j-web->log4j-perf 8 log4j-web->log4j-core-java9 2 log4j-web->log4j-api-java9 9 log4j-web->log4j-api 9 log4j-web->log4j-core 7 log4j-spring-cloud-config log4j-spring-cloud-config log4j-iostreams log4j-iostreams log4j-iostreams->log4j-perf 24 log4j-iostreams->log4j-api-java9 24 log4j-iostreams->log4j-api 24 log4j-jakarta-web log4j-jakarta-web log4j-jakarta-web->log4j-perf 8 log4j-jakarta-web->log4j-core-java9 2 log4j-jakarta-web->log4j-api-java9 9 log4j-jakarta-web->log4j-api 9 log4j-jakarta-web->log4j-core 7 log4j-layout-template-json-test log4j-layout-template-json-test log4j-layout-template-json-test->log4j-perf 1 log4j-layout-template-json-test->log4j-core 2 log4j-to-slf4j log4j-to-slf4j log4j-to-slf4j->log4j-perf 6 log4j-to-slf4j->log4j-api-java9 7 log4j-to-slf4j->log4j-api 7 log4j-core->log4j-perf 192 log4j-core->log4j-api-java9 304 log4j-core->log4j-api 304 log4j-jcl log4j-jcl log4j-jcl->log4j-perf 3 log4j-jcl->log4j-api-java9 3 log4j-jcl->log4j-api 3 log4j-slf4j-impl log4j-slf4j-impl log4j-slf4j-impl->log4j-perf 6 log4j-slf4j-impl->log4j-api-java9 6 log4j-slf4j-impl->log4j-api 6 log4j-jmx-gui log4j-jmx-gui log4j-jmx-gui->log4j-core 3 log4j-to-jul log4j-to-jul log4j-to-jul->log4j-perf 4 log4j-to-jul->log4j-api-java9 6 log4j-to-jul->log4j-api 6 log4j-docker log4j-docker log4j-spring-boot log4j-spring-boot log4j-spring-boot->log4j-perf 3 log4j-spring-boot->log4j-core-java9 2 log4j-spring-boot->log4j-api-java9 4 log4j-spring-boot->log4j-api 4 log4j-spring-boot->log4j-core 3 log4j-core-test log4j-core-test src src log4j-taglib log4j-taglib log4j-taglib->log4j-perf 16 log4j-taglib->log4j-api-java9 16 log4j-taglib->log4j-api 16


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Component Commits
Components ordered by number of commits
Total Commits per Component
All commits, some commits may include files from multiple components.
log4j-core3832 commits (30%)
log4j-api1232 commits (9%)
src970 commits (7%)
log4j-1.2-api353 commits (2%)
log4j-perf265 commits (2%)
log4j-flume-ng139 commits (1%)
log4j-web116 commits (<1%)
log4j-to-slf4j98 commits (<1%)
log4j-jul77 commits (<1%)
log4j-slf4j-impl62 commits (<1%)
log4j-layout-template-json56 commits (<1%)
log4j-api-java935 commits (<1%)
log4j-jmx-gui34 commits (<1%)
log4j-iostreams25 commits (<1%)
log4j-taglib25 commits (<1%)
log4j-appserver23 commits (<1%)
log4j-jcl21 commits (<1%)
log4j-jdbc-dbcp217 commits (<1%)
log4j-jpa16 commits (<1%)
log4j-spring-boot12 commits (<1%)
log4j-slf4j2-impl11 commits (<1%)
log4j-mongodb311 commits (<1%)
log4j-jakarta-web11 commits (<1%)
log4j-cassandra10 commits (<1%)
log4j-docker10 commits (<1%)
log4j-core-java99 commits (<1%)
log4j-mongodb49 commits (<1%)
ROOT8 commits (<1%)
log4j-to-jul7 commits (<1%)
log4j-spring-cloud-config7 commits (<1%)
log4j-kubernetes7 commits (<1%)
log4j-distribution6 commits (<1%)
log4j-jpl5 commits (<1%)
log4j-couchdb5 commits (<1%)
log4j-core-test3 commits (<1%)
log4j-jakarta-smtp3 commits (<1%)
log4j-layout-template-json-test2 commits (<1%)
Yearly File Updates Trend per Components
The number of file changes in commits
animated commit history: all time cumulative | 12 months window
2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
src
9633
81
74
23
24
40
130
362
167
181
146
144
43
log4j-core
911
335
293
259
251
1012
1167
4726
1960
1967
306
log4j-1.2-api
269
377
80
141
116
16
13
152
16
34
29
log4j-api
199
101
50
59
39
218
255
967
321
366
74
log4j-perf
143
8
12
34
18
36
55
417
61
83
log4j-layout-template-json
103
18
114
102
log4j-api-java9
21
11
3
4
8
7
18
log4j-slf4j2-impl
18
14
log4j-jul
18
10
4
8
3
10
5
8
23
34
log4j-iostreams
25
3
28
33
1
1
1
91
log4j-web
17
7
7
5
10
4
54
14
65
log4j-jakarta-web
17
5
29
log4j-slf4j-impl
11
10
7
5
2
1
5
14
39
6
log4j-jpa
17
3
1
2
30
log4j-flume-ng
18
2
3
4
6
11
10
77
30
52
15
log4j-core-java9
20
11
log4j-taglib
19
1
2
6
10
17
21
log4j-to-jul
8
10
log4j-spring-boot
9
7
1
4
log4j-docker
15
1
3
1
13
log4j-to-slf4j
15
1
6
1
6
44
5
21
27
log4j-mongodb4
8
6
5
log4j-mongodb3
5
6
2
4
5
log4j-kubernetes
8
2
4
3
log4j-jpl
6
1
1
3
ROOT
6
1
1
log4j-cassandra
6
7
4
log4j-jmx-gui
6
1
3
2
4
4
7
17
3
log4j-core-test
3
2
log4j-jakarta-smtp
3
2
log4j-jcl
3
1
1
3
1
2
13
4
log4j-spring-cloud-config
4
1
2
3
log4j-jdbc-dbcp2
3
1
1
14
log4j-layout-template-json-test
2
2
log4j-couchdb
3
2
3
log4j-appserver
2
1
4
20
log4j-distribution
5
1


Dependencies between components in same commits (past 180 days)
The number on the lines shows the number of shared commits.
See detailed temporal dependencies report...

G log4j-core log4j-core log4j-core--log4j-core 14 log4j-1.2-api log4j-1.2-api log4j-core--log4j-1.2-api 6 log4j-api log4j-api log4j-core--log4j-api 6 log4j-core-java9 log4j-core-java9 log4j-core--log4j-core-java9 4 log4j-1.2-api--log4j-1.2-api 5 log4j-api--log4j-1.2-api 5 log4j-api--log4j-api 5 log4j-flume-ng log4j-flume-ng log4j-flume-ng--log4j-core 4 log4j-flume-ng--log4j-1.2-api 3 log4j-flume-ng--log4j-api 4 log4j-flume-ng--log4j-flume-ng 4 log4j-core-java9--log4j-core-java9 4 log4j-perf log4j-perf log4j-perf--log4j-core 3 log4j-perf--log4j-1.2-api 3 log4j-perf--log4j-api 2 log4j-perf--log4j-perf 3 log4j-spring-boot log4j-spring-boot log4j-spring-boot--log4j-core 3 log4j-spring-boot--log4j-1.2-api 3 log4j-spring-boot--log4j-api 3 log4j-spring-boot--log4j-core-java9 2 log4j-layout-template-json log4j-layout-template-json log4j-spring-boot--log4j-layout-template-json 3 log4j-layout-template-json--log4j-core 3 log4j-layout-template-json--log4j-1.2-api 3 log4j-layout-template-json--log4j-api 3 log4j-jakarta-web log4j-jakarta-web log4j-layout-template-json--log4j-jakarta-web 3 log4j-web log4j-web log4j-web--log4j-core 3 log4j-web--log4j-1.2-api 3 log4j-web--log4j-api 3 log4j-web--log4j-spring-boot 3 log4j-web--log4j-layout-template-json 3 log4j-web--log4j-web 3 log4j-web--log4j-jakarta-web 3 log4j-jul log4j-jul log4j-jul--log4j-core 3 log4j-jul--log4j-1.2-api 3 log4j-jul--log4j-api 3 log4j-jul--log4j-flume-ng 3 log4j-jul--log4j-jul 3 log4j-to-slf4j log4j-to-slf4j log4j-to-slf4j--log4j-core 3 log4j-to-slf4j--log4j-1.2-api 3 log4j-to-slf4j--log4j-api 3 log4j-to-slf4j--log4j-flume-ng 3 log4j-to-slf4j--log4j-jul 3 log4j-jakarta-web--log4j-core 3 log4j-jakarta-web--log4j-1.2-api 3 log4j-jakarta-web--log4j-api 3 log4j-jakarta-web--log4j-spring-boot 3 log4j-jakarta-web--log4j-jakarta-web 3 log4j-cassandra log4j-cassandra log4j-cassandra--log4j-perf 2 log4j-jpl log4j-jpl log4j-jpl--log4j-core 2 log4j-kubernetes log4j-kubernetes log4j-kubernetes--log4j-jpl 2

2023-08-10 14:48