Migrate Log4j 2.x to SLF4J 1.x

Usage

This recipe has no required configuration options. You’ll need the Moderne CLI configured before running the command below.

mod run . --recipe org.openrewrite.java.logging.slf4j.Log4j2ToSlf4j1

If the recipe isn’t available locally, install it with:

mod config recipes jar install org.openrewrite.recipe:rewrite-logging-frameworks:3.31.0

Definition

This recipe runs the following recipes in order.

• Change typeorg.openrewrite.java.ChangeType
• Change method nameorg.openrewrite.java.ChangeMethodName
• Change method nameorg.openrewrite.java.ChangeMethodName
• Replace Log4j 2.x active Level check with corresponding SLF4J method callsorg.openrewrite.java.logging.slf4j.Log4j2IsEnabledToSlf4jRecipes
• Change typeorg.openrewrite.java.ChangeType
• Parameterize SLF4J's logging statementsorg.openrewrite.java.logging.slf4j.ParameterizedLogging
• Replace any Lombok log annotations with target logging framework annotationorg.openrewrite.java.logging.ChangeLombokLogAnnotation

Data tables

Structured output this recipe can produce.

• Source files that had resultsSource files that were modified by the recipe run.org.openrewrite.table.SourcesFileResults
• Source files that had search resultsSearch results that were found during the recipe run.org.openrewrite.table.SearchResults
• Source files that errored on a recipeThe details of all errors produced by a recipe run.org.openrewrite.table.SourcesFileErrors
• Recipe performanceStatistics used in analyzing the performance of recipes.org.openrewrite.table.RecipeRunStats