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github.com/qos-ch/slf4j

repository ↗ · DeepWiki ↗ · release SLF4J_1.5.8 ↗ · + Follow · compare 3 versions

1,176 symbols 3,459 edges 192 files 505 documented · 43% ● updated 2mo agov_2.0.18 · 2026-05-12★ 2,51848 open issues

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⨍ Functions 987◇ Types & classes 189

What it actually does AI analysis from the code graph — generated when you open this

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Extension points exported contracts — how you extend this code

Log (Interface)

A simple logging interface abstracting logging APIs. In order to be instantiated successfully by LogFactory, [8 implementers]

jcl-over-slf4j/src/main/java/org/apache/commons/logging/Log.java

Logger (Interface)

The org.slf4j.Logger interface is the main user entry point of SLF4J API. It is expected that logging takes place throug [6 …

slf4j-api/src/main/java/org/slf4j/Logger.java

TimeInstrument (Interface)

This interface sets the methods that must be implemented by Profiler and StopWatch classes. It settles [4 implementers]

slf4j-ext/src/main/java/org/slf4j/profiler/TimeInstrument.java

RuleSet (Interface)

(no doc) [11 implementers]

slf4j-migrator/src/main/java/org/slf4j/migrator/line/RuleSet.java

IntegrationTestConstants (Interface)

(no doc) [5 implementers]

slf4j-osgi-integration-test/src/test/java/org/slf4j/osgi/integration/IntegrationTestConstants.java

Probe (Interface)

Probe is a service for testing accessibility of Slf4j components from the test bundle. @author John Conlon [3 implementers]

slf4j-osgi-test-bundle/src/main/java/org/slf4j/osgi/test/service/Probe.java

ILoggerFactory (Interface)

ILoggerFactory instances manufacture Logger instances by name. Most users retrieve {@link Logge [16 implementers]

slf4j-api/src/main/java/org/slf4j/ILoggerFactory.java

ProgressListener (Interface)

(no doc) [4 implementers]

slf4j-migrator/src/main/java/org/slf4j/migrator/internal/ProgressListener.java

Core symbols most depended-on inside this repo

log

called by 120

slf4j-ext/src/main/java/org/slf4j/profiler/TimeInstrument.java

debug

called by 111

slf4j-api/src/main/java/org/slf4j/Logger.java

info

called by 97

slf4j-api/src/main/java/org/slf4j/Logger.java

format

called by 90

slf4j-api/src/main/java/org/slf4j/helpers/MessageFormatter.java

error

called by 77

slf4j-api/src/main/java/org/slf4j/Logger.java

get

called by 76

slf4j-api/src/main/java/org/slf4j/spi/MDCAdapter.java

add

called by 74

slf4j-api/src/main/java/org/slf4j/Marker.java

warn

called by 71

slf4j-api/src/main/java/org/slf4j/Logger.java

Shape

Method 961

Class 171

Function 26

Interface 15

Enum 3

Languages

Java98%

TypeScript2%

Modules by API surface

slf4j-site/src/site/pages/js/prettify.js26 symbols

slf4j-migrator/src/main/java/org/slf4j/migrator/internal/MigratorFrame.java26 symbols

jcl-over-slf4j/src/main/java/org/apache/commons/logging/impl/SimpleLog.java24 symbols

slf4j-ext/src/main/java/org/slf4j/ext/EventData.java21 symbols

log4j-over-slf4j/src/main/java/org/apache/log4j/Category.java21 symbols

slf4j-ext/src/main/java/org/slf4j/profiler/Profiler.java20 symbols

jcl-over-slf4j/src/main/java/org/apache/commons/logging/LogFactory.java19 symbols

slf4j-api/src/main/java/org/slf4j/helpers/MessageFormatter.java16 symbols

jcl-over-slf4j/src/main/java/org/apache/commons/logging/impl/SLF4JLog.java15 symbols

jcl-over-slf4j/src/main/java/org/apache/commons/logging/impl/SLF4JLocationAwareLog.java15 symbols

slf4j-simple/src/main/java/org/slf4j/impl/SimpleLogger.java14 symbols

slf4j-log4j12/src/main/java/org/slf4j/impl/Log4jLoggerAdapter.java14 symbols

For agents

$ claude mcp add slf4j \
  -- python -m otcore.mcp_server <graph>

⬇ download graph artifact

github.com/qos-ch/slf4j @SLF4J_1.5.8@v_2.0.18@v2.0.14

Extension points exported contracts — how you extend this code

Core symbols most depended-on inside this repo

Shape

Languages

Modules by API surface

For agents

Ask about this repo answers extend the page

github.com/qos-ch/slf4j