Design Partners
Migrate Log4j 2.x to Logback
** org.openrewrite.java.logging.logback.Log4jToLogback** Migrates usage of Apache Log4j 2.x to using logback as an SLF4J implementation directly. Note, this currently does not modify log4j.properties files.

Tags

  • logging
  • log4j
  • logback

Source

  • groupId: org.openrewrite.recipe
  • artifactId: rewrite-logging-frameworks
  • version: 1.8.0

Usage

This recipe has no required configuration options and can be activated directly after taking a dependency on org.openrewrite.recipe:rewrite-logging-frameworks:1.8.0 in your build file:
Gradle
Maven
build.gradle
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plugins {
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id("org.openrewrite.rewrite") version("5.22.2")
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}
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rewrite {
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activeRecipe("org.openrewrite.java.logging.logback.Log4jToLogback")
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}
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repositories {
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mavenCentral()
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}
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dependencies {
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rewrite("org.openrewrite.recipe:rewrite-logging-frameworks:1.8.0")
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}
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pom.xml
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<project>
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<build>
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<plugins>
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<plugin>
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<groupId>org.openrewrite.maven</groupId>
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<artifactId>rewrite-maven-plugin</artifactId>
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<version>4.25.0</version>
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<configuration>
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<activeRecipes>
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<recipe>org.openrewrite.java.logging.logback.Log4jToLogback</recipe>
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</activeRecipes>
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</configuration>
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<dependencies>
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<dependency>
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<groupId>org.openrewrite.recipe</groupId>
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<artifactId>rewrite-logging-frameworks</artifactId>
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<version>1.8.0</version>
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</dependency>
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</dependencies>
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</plugin>
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</plugins>
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</build>
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</project>
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Recipes can also be activated directly from the command line by adding the argument -Drewrite.activeRecipesorg.openrewrite.java.logging.logback.Log4jToLogback

Definition

Recipe List
Yaml Recipe List
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---
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type: specs.openrewrite.org/v1beta/recipe
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name: org.openrewrite.java.logging.logback.Log4jToLogback
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displayName: Migrate Log4j 2.x to Logback
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description: Migrates usage of Apache Log4j 2.x to using `logback` as an SLF4J implementation directly. Note, this currently does not modify `log4j.properties` files.
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tags:
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- logging
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- log4j
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- logback
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recipeList:
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- org.openrewrite.java.logging.slf4j.Log4jToSlf4j
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- org.openrewrite.java.logging.logback.Log4jAppenderToLogback
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- org.openrewrite.java.logging.logback.Log4jLayoutToLogback
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- org.openrewrite.maven.AddDependency:
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groupId: ch.qos.logback
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artifactId: logback-core
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version: latest.release
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onlyIfUsing: org.apache.logging.log4j.*
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- org.openrewrite.maven.AddDependency:
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groupId: ch.qos.logback
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artifactId: logback-classic
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version: latest.release
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onlyIfUsing: org.apache.logging.log4j.*
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- org.openrewrite.maven.AddDependency:
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groupId: org.slf4j
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artifactId: slf4j-api
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version: latest.release
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onlyIfUsing: org.apache.logging.log4j.*
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- org.openrewrite.maven.RemoveDependency:
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groupId: org.apache.logging.log4j
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artifactId: log4j-*
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