Add Scala/Gradle starter

Author: oliver-brm

src/main/resources/templates/build.gradle.kts.ftl

@@ -17,6 +17,8 @@ plugins {
 <#else>
   kotlin ("jvm") version "1.7.21"
 </#if>
+<#elseif language == "scala">
+  scala
 <#else>
   java
 </#if>
@@ -71,11 +73,18 @@ dependencies {
 </#list>
 <#if language == "kotlin" && vertxVersion?starts_with("4.")>
   implementation(kotlin("stdlib-jdk8"))
+<#elseif language == "scala">
+  implementation("org.scala-lang:scala3-library_3:3.5.2")
+  implementation("io.vertx:vertx-lang-scala_3:${vertxVersion}")
 </#if>
 <#if hasPgClient>
   implementation("com.ongres.scram:client:2.1")
 </#if>
-<#if hasVertxJUnit5>
+<#if language == "scala">
+  testImplementation("io.vertx:vertx-lang-scala-test_3:${vertxVersion}")
+  testImplementation("org.scalatest:scalatest_3:3.2.19")
+  testRuntimeOnly("org.scalatestplus:junit-5-11_3:3.2.19.0")
+<#elseif hasVertxJUnit5>
   testImplementation("io.vertx:vertx-junit5")
   testImplementation("org.junit.jupiter:junit-jupiter:$junitJupiterVersion")
 <#elseif hasVertxUnit>
@@ -111,7 +120,9 @@ tasks.withType<ShadowJar> {
 }
 
 tasks.withType<Test> {
-<#if hasVertxJUnit5>
+<#if language == "scala">
+  useJUnitPlatform()
+<#elseif hasVertxJUnit5>
   useJUnitPlatform()
 <#elseif hasVertxUnit>
   useJUnit()

src/main/resources/templates/src/main/scala/MainVerticle.scala.ftl

@@ -25,4 +25,5 @@ class HttpVerticle extends ScalaVerticle:
         .putHeader("content-type", "text/plain")
         .end("Hello from Vert.x!"))
       .listen(8888)
+      .onSuccess(_ => println("HTTP server started on port 8888"))
       .mapEmpty[Unit]()

src/main/resources/templates/src/test/scala/TestMainVerticle.scala.ftl

@@ -10,7 +10,7 @@ import org.scalatest.matchers.should.Matchers
 import scala.language.implicitConversions
 
 
-class MainVerticleSpec extends VerticleTesting[HttpVerticle], Matchers:
+class TestMainVerticle extends VerticleTesting[HttpVerticle], Matchers:
 
   "HttpVerticle" should "bind to 8888 and answer with 'Hello from Vert.x!'" in {
     val httpClient = vertx.createHttpClient()

src/test/java/io/vertx/starter/service/GeneratorTest.java

@@ -292,7 +292,7 @@ private void verifyMavenFiles() {
 
   private void verifyMavenOutputFiles() throws IOException {
     try (Stream<Path> pathStream = Files.walk(workdir)) {
-      Optional<Path> testResult = pathStream.filter(p -> p.toString().endsWith("TestMainVerticle.txt")).findFirst();
+      Optional<Path> testResult = pathStream.filter(p -> p.toString().endsWith("TestMainVerticle.xml")).findFirst();
       assertThat(testResult).isPresent().hasValueSatisfying(p -> assertThat(p).isRegularFile());
       assertThat(workdir.resolve("target/demo-1.0.0-SNAPSHOT-fat.jar")).isRegularFile();
     }