https://github.com/luminus-framework/log4j-edn-config

EDN configuration plugin for log4j
https://github.com/luminus-framework/log4j-edn-config

Last synced: 6 months ago
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EDN configuration plugin for log4j

• Host: GitHub
• URL: https://github.com/luminus-framework/log4j-edn-config
• Owner: luminus-framework
• License: other
• Created: 2016-07-06T13:47:39.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2016-07-10T22:21:50.000Z (almost 10 years ago)
• Last Synced: 2025-08-21T00:36:09.992Z (10 months ago)
• Language: Java
• Size: 17.6 KB
• Stars: 3
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# log4j-edn-config

A Clojure library designed to provide EDN configuration support for log4j2

## Usage

[![Clojars Project](https://img.shields.io/clojars/v/log4j-edn-config.svg)](https://clojars.org/log4j-edn-config)

**warning** Log4j has [a bug](https://issues.apache.org/jira/browse/LOG4J2-369) that makes plugins incompatible with compatible uberjars. Log4j generates a plugin dat file, and only a single file can be present on the classpath, when multiple ones are present, then you'll end up with unexpected behaviors. Maven provides a [plugin](https://stackoverflow.com/questions/25065580/log4j2-custom-plugins-annotation-processing-with-maven-assembly-plugin) for handling the issue, however there's no way to do that via Leiningen at the moment.

Include the dependency in the project, log4j will pick it and allow using `.edn` files for configuraiton.

The logging configruation must be present under the `:logger` key in the EDN file, e.g:

```clojure

{:logger

 {:configuration

  {:name "DefaultConfig"

   :ThresholdFilter {:level "debug"}

   :appenders

   {:appender

    [{:type "Console"

      :name "Console"

      :target "SYSTEM_OUT"

      :PatternLayout {:pattern "[%d][%p][%c] %m%n"}}

     {:type "RollingFile"

      :name "File"

      :fileName "./log/myapp.log"

      :filePattern "./log/myapp-%d{MM-dd-yyyy}-%i.log.gz"

      :PatternLayout {:pattern "[%d][%p][%c] %m%n"}

      :DefaultRolloverStrategy {:max "10"}

      :Policies

      {:SizeBasedTriggeringPolicy {:size "10 MB"}}}]}

   :loggers {:logger

             [{:name "org.xnio.nio"

               :level "warn"}]

             :root {:level "info"

                    :AppenderRef

                    [{:ref "Console"}

                     {:ref "File"}]}}}}}

```

The EDN under the `:logger` key is converted to JSON and follows log4j JSON configuration format.

See the official log4j documentation on [configuring JSON logging](https://logging.apache.org/log4j/2.x/manual/configuration.html#JSON) for details.

## License

Copyright © 2016 Dmitri Sotnikov

Distributed under the Apache License 2.0