Moderne licensed

Migrate JUL to Log4j 2.x API

Recipe IDorg.openrewrite.java.logging.log4j.JulToLog4jArtifactorg.openrewrite.recipe:rewrite-logging-frameworks

Transforms code written using java.util.logging to use Log4j 2.x API.

Composite recipeloggingjava-util-logginglog4jMSAL

Add to your build

Get a download tokenThis recipe is Moderne licensed, so the token must belong to a Moderne customer. It replaces YOUR_DOWNLOAD_TOKEN below.

~/.gradle/gradle.properties

codeGenomeUsername=you@example.com
codeGenomeToken=YOUR_DOWNLOAD_TOKEN

build.gradle.kts

plugins {
    id("org.openrewrite.rewrite") version("latest.release")
}

rewrite {
    activeRecipe("org.openrewrite.java.logging.log4j.JulToLog4j")
}

repositories {
    mavenCentral()
    maven {
        url = uri("https://artifacts.codegenomeproject.org/maven")
        credentials {
            username = providers.gradleProperty("codeGenomeUsername").get()
            password = providers.gradleProperty("codeGenomeToken").get()
        }
    }
}

dependencies {
    rewrite("org.openrewrite.recipe:rewrite-logging-frameworks:3.34.0")
}

Then run

./gradlew rewriteRun

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.log4j.JulToLog4j

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

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

Definition

This recipe runs the following recipes in order.

Replace JUL Level arguments with the corresponding method callsorg.openrewrite.java.logging.jul.LoggerLevelArgumentToMethodRecipes
Change method target to staticorg.openrewrite.java.ChangeMethodTargetToStatic
Change method name java.util.logging.Logger config(..) to infoorg.openrewrite.java.ChangeMethodName
Change method name java.util.logging.Logger fine(..) to debugorg.openrewrite.java.ChangeMethodName
Change method name java.util.logging.Logger finer(..) to traceorg.openrewrite.java.ChangeMethodName
Change method name java.util.logging.Logger finest(..) to traceorg.openrewrite.java.ChangeMethodName
Change method name java.util.logging.Logger severe(..) to errororg.openrewrite.java.ChangeMethodName
Change method name java.util.logging.Logger warning(..) to warnorg.openrewrite.java.ChangeMethodName
Rewrites JUL's Logger#entering method to Log4j APIorg.openrewrite.java.logging.log4j.ConvertJulEntering
Rewrites JUL's Logger#exiting method to Log4j APIorg.openrewrite.java.logging.log4j.ConvertJulExiting
Change type java.util.logging.Logger to org.apache.logging.log4j.Loggerorg.openrewrite.java.ChangeType
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