{"id":29471994,"url":"https://github.com/funcool/log4j2-clojure","last_synced_at":"2025-07-14T14:08:38.517Z","repository":{"id":62432752,"uuid":"315443033","full_name":"funcool/log4j2-clojure","owner":"funcool","description":"A clojure specific appender implementation for Log4j2.","archived":false,"fork":false,"pushed_at":"2021-02-14T17:56:36.000Z","size":10,"stargazers_count":4,"open_issues_count":0,"forks_count":1,"subscribers_count":4,"default_branch":"main","last_synced_at":"2025-06-06T16:51:49.461Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"Java","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mpl-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/funcool.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2020-11-23T21:17:36.000Z","updated_at":"2024-03-11T17:43:36.000Z","dependencies_parsed_at":"2022-11-01T20:47:17.971Z","dependency_job_id":null,"html_url":"https://github.com/funcool/log4j2-clojure","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/funcool/log4j2-clojure","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/funcool%2Flog4j2-clojure","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/funcool%2Flog4j2-clojure/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/funcool%2Flog4j2-clojure/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/funcool%2Flog4j2-clojure/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/funcool","download_url":"https://codeload.github.com/funcool/log4j2-clojure/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/funcool%2Flog4j2-clojure/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":264687981,"owners_count":23649592,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2025-07-14T14:08:37.507Z","updated_at":"2025-07-14T14:08:38.508Z","avatar_url":"https://github.com/funcool.png","language":"Java","readme":"# A log4j2 appender for Clojure\n\nThis library exposes the appender implementation for log4j2 that calls\na user defined function for each log.\n\nRequires JDK \u003e= 11.\n\n## Getting Started ##\n\nAdd dependencies:\n\n```clojure\norg.apache.logging.log4j/log4j-api {:mvn/version \"2.13.3\"}\norg.apache.logging.log4j/log4j-core {:mvn/version \"2.13.3\"}\norg.clojure/tools.logging {:mvn/version \"1.1.0\"}\nfuncool/log4j2-clojure {:mvn/version \"2020.11.23-1\"}\n```\n\nConfigure logging (log4j2.xml):\n\n```xml\n\u003c?xml version=\"1.0\" encoding=\"UTF-8\"?\u003e\n\u003cConfiguration status=\"info\"\u003e\n  \u003cAppenders\u003e\n    \u003cConsole name=\"main\" target=\"SYSTEM_OUT\"\u003e\n      \u003cPatternLayout pattern=\"[%d{YYYY-MM-dd HH:mm:ss.SSS}] [%t] %level{length=1} %logger{36} - %msg%n\"/\u003e\n    \u003c/Console\u003e\n\n    \u003cCljFn name=\"test\" ns=\"some.ns\" fn=\"print-log\"\u003e\n      \u003cPatternLayout pattern=\"[%d{YYYY-MM-dd HH:mm:ss.SSS}] [%t] %logger{36} - %msg%n\"/\u003e\n    \u003c/CljFn\u003e\n  \u003c/Appenders\u003e\n\n  \u003cLoggers\u003e\n    \u003cRoot level=\"info\"\u003e\n      \u003cAppenderRef ref=\"main\" /\u003e\n      \u003cAppenderRef ref=\"test\" /\u003e\n    \u003c/Root\u003e\n  \u003c/Loggers\u003e\n\u003c/Configuration\u003e\n```\n\nThis is a simple configuration that logs info (or greater levels) to\nthe console and to the `CljFn` appender. The `CljFn` appender will try\nti import the `some.ns/print-log` function and call it for each log\nentry.\n\nExample:\n\n```clojure\n(ns some.ns)\n\n(defn print-log\n  [event]\n  (println (str event)))\n```\n\nThe `event` is just a wrapper to the log4j2 LogEvent instance and it implementes IDeref\nfor obtain the original LogEvent and `.toString()` to format the log using the configured\nlayout (in this case the PatternLayout).\n\n```clojure\nuser=\u003e (require '[clojure.tools.logging :as log])\nuser=\u003e (log/info \"foobar\")\n[2020-11-23 22:12:39.648] [main] user - foobar\n```\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffuncool%2Flog4j2-clojure","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ffuncool%2Flog4j2-clojure","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffuncool%2Flog4j2-clojure/lists"}