Design Partners
Migrate Log4j 1.x to SLF4J 1.x
** org.openrewrite.java.logging.slf4j.Log4j1ToSlf4j1** Transforms usages of Log4j 1.x to leveraging SLF4J 1.x directly. Note, this currently does not modify log4j.properties files.

Tags

  • slf4j
  • logging
  • log4j

Source

  • groupId: org.openrewrite.recipe
  • artifactId: rewrite-logging-frameworks
  • version: 1.6.0

Usage

This recipe has no required configuration options and can be activated directly after taking a dependency on org.openrewrite.recipe:rewrite-logging-frameworks:1.6.0 in your build file:
Gradle
Maven
build.gradle
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plugins {
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id("org.openrewrite.rewrite") version("5.20.0")
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}
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rewrite {
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activeRecipe("org.openrewrite.java.logging.slf4j.Log4j1ToSlf4j1")
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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:1.6.0")
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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>4.23.0</version>
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<configuration>
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<activeRecipes>
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<recipe>org.openrewrite.java.logging.slf4j.Log4j1ToSlf4j1</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>1.6.0</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.activeRecipes=org.openrewrite.java.logging.slf4j.Log4j1ToSlf4j1

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.slf4j.Log4j1ToSlf4j1
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displayName: Migrate Log4j 1.x to SLF4J 1.x
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description: Transforms usages of Log4j 1.x to leveraging SLF4J 1.x directly. Note, this currently does not modify `log4j.properties` files.
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tags:
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- slf4j
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- logging
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- log4j
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recipeList:
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- org.openrewrite.java.ChangeType:
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oldFullyQualifiedTypeName: org.apache.log4j.MDC
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newFullyQualifiedTypeName: org.slf4j.MDC
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- org.openrewrite.java.logging.log4j.Log4j1ToLog4j2
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- org.openrewrite.java.logging.slf4j.Log4j2ToSlf4j1
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- org.openrewrite.java.logging.slf4j.ParameterizedLogging
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