Replace Log4j 2.x active Level check with corresponding SLF4J method calls

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.Log4j2IsEnabledToSlf4jRecipes

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.

• Replace Log4j 2.x Logger.isEnabled(Level.TRACE) with SLF4J's Logger.isTraceEnabled()org.openrewrite.java.logging.slf4j.Log4j2IsEnabledToSlf4jRecipes$LoggerIsEnabledLevelTraceRecipe
• Replace Log4j 2.x Logger.isEnabled(Level.DEBUG) with SLF4J's Logger.isDebugEnabled()org.openrewrite.java.logging.slf4j.Log4j2IsEnabledToSlf4jRecipes$LoggerIsEnabledLevelDebugRecipe
• Replace Log4j 2.x Logger.isEnabled(Level.INFO) with SLF4J's Logger.isInfoEnabled()org.openrewrite.java.logging.slf4j.Log4j2IsEnabledToSlf4jRecipes$LoggerIsEnabledLevelInfoRecipe
• Replace Log4j 2.x Logger.isEnabled(Level.WARN) with SLF4J's Logger.isWarnEnabled()org.openrewrite.java.logging.slf4j.Log4j2IsEnabledToSlf4jRecipes$LoggerIsEnabledLevelWarnRecipe
• Replace Log4j 2.x Logger.isEnabled(Level.ERROR) with SLF4J's Logger.isErrorEnabled()org.openrewrite.java.logging.slf4j.Log4j2IsEnabledToSlf4jRecipes$LoggerIsEnabledLevelErrorRecipe

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