make log level configurable

Author: jenschude

dependencies.gradle

@@ -13,7 +13,7 @@ ext {
             picocli: '4.6.1',
             rmf: '0.2.0-20240722205528',
             rxjava: '3.1.2',
-            slf4j: '1.7.25',
+            slf4j: '2.0.17',
             spock: '2.2-groovy-4.0',
             swaggerParser: '2.1.20',
             jsoup: '1.15.1',

tools/cli-application/build.gradle

@@ -98,6 +98,8 @@ dependencies {
     api 'org.eclipse.elk:org.eclipse.elk.alg.layered:0.8.1'
     api 'org.eclipse.elk:org.eclipse.elk.alg.mrtree:0.8.1'
 
+    api 'ch.qos.logback:logback-classic:1.5.10'
+
     implementation orgkotlin.stdlib
     implementation google.guava
     implementation picocli.cli

tools/cli-application/src/main/kotlin/io/vrap/rmf/codegen/cli/GenerateSubcommand.kt

@@ -43,9 +43,7 @@ import io.vrap.codegen.languages.typescript.joi.JoiBaseTypes
 import io.vrap.codegen.languages.typescript.joi.JoiModule
 import io.vrap.rmf.codegen.CodeGeneratorConfig
 import io.vrap.rmf.codegen.di.*
-import io.vrap.rmf.codegen.io.DataSink
 import io.vrap.rmf.codegen.io.FileDataSink
-import io.vrap.rmf.codegen.io.TemplateFile
 import io.vrap.rmf.codegen.toSeconds
 import io.vrap.rmf.codegen.types.VrapObjectType
 import io.vrap.rmf.codegen.types.VrapType

tools/cli-application/src/main/kotlin/io/vrap/rmf/codegen/cli/Utils.kt

@@ -1,11 +1,13 @@
 package io.vrap.rmf.codegen.cli
 
+import io.vrap.rmf.codegen.io.ConsoleDataSink
 import io.vrap.rmf.raml.model.RamlDiagnostic
 import io.vrap.rmf.raml.model.RamlModelResult
 import io.vrap.rmf.raml.model.modules.Api
 import io.vrap.rmf.raml.validation.Violation
 import org.eclipse.emf.common.util.Diagnostic
 import org.eclipse.emf.common.util.URI
+import org.slf4j.LoggerFactory
 import java.nio.file.Paths
 import kotlin.io.path.toPath
 
@@ -151,36 +153,37 @@ class GithubRamlDiagnosticPrinter: RamlDiagnosticPrinter {
 
 object InternalLogger {
 
+    private val LOGGER = LoggerFactory.getLogger(InternalLogger::class.java)
+
     var logLevel = LogLevel.INFO
 
     fun debug(message: String) {
         if (logLevel.level <= LogLevel.DEBUG.level) {
-            println("✅   $message")
+            LOGGER.debug("✅   $message")
         }
     }
 
     fun info(message: String) {
         if (logLevel.level <= LogLevel.INFO.level) {
-            println("✅   $message")
+            LOGGER.info("✅   $message")
         }
     }
 
     fun warn(message: Throwable) {
         if (logLevel.level <= LogLevel.WARN.level) {
-            println("⚠️   $message")
+            LOGGER.warn("⚠️   $message")
         }
     }
 
     fun error(message: String) {
         if (logLevel.level <= LogLevel.ERROR.level) {
-            println("🛑   $message")
+            LOGGER.error("🛑   $message")
         }
     }
 
     fun error(throwable: Throwable) {
         if (logLevel.level <= LogLevel.ERROR.level) {
-            println("🛑   $throwable")
-
+            LOGGER.error("🛑   $throwable")
         }
     }
 }

tools/cli-application/src/main/kotlin/io/vrap/rmf/codegen/cli/VerifySubcommand.kt

@@ -84,5 +84,3 @@ class VerifySubcommand : Callable<Int> {
     }
 
 }
-
-

tools/cli-application/src/main/resources/application.properties

@@ -0,0 +1 @@
+slf4j.internal.verbosity=WARN

tools/cli-application/src/main/resources/logback.xml

@@ -0,0 +1,11 @@
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%msg%n</pattern>
+        </encoder>
+    </appender>
+    <variable name="LOGLEVEL" value="${LOGLEVEL:-INFO}" />
+    <root level="${LOGLEVEL}">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>