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Moderne licensed

Migrate Log4j to SLF4J

Recipe IDorg.openrewrite.java.logging.slf4j.Log4jToSlf4j
Artifactorg.openrewrite.recipe:rewrite-logging-frameworks

Migrates usage of Apache Log4j to using SLF4J directly. Use of the traditional Log4j to SLF4J bridge can result in loss of performance, as the Log4j messages must be formatted before they can be passed to SLF4J. Note, this currently does not modify log4j.properties files.

Composite recipeslf4jlogginglog4jMSAL

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.Log4jToSlf4j

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.

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