API-first with openapiprocessor and modelmapper

build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id 'java'
     id 'org.springframework.boot' version '2.7.2'
+    id 'io.openapiprocessor.openapi-processor' version '2021.3'
     id 'io.spring.dependency-management' version '1.0.12.RELEASE'
     id 'com.github.jk1.dependency-license-report' version '2.1'
     id "org.owasp.dependencycheck" version "7.1.1"
@@ -45,6 +46,8 @@ dependencies {
     implementation 'org.springdoc:springdoc-openapi-ui:1.6.9'
     implementation 'org.liquibase:liquibase-core'
     implementation 'com.vladmihalcea:hibernate-types-55:2.17.1'
+    implementation 'org.openapitools:jackson-databind-nullable:0.2.3'// https://mvnrepository.com/artifact/org.modelmapper/modelmapper
+    implementation 'org.modelmapper:modelmapper:3.1.0'
 
     compileOnly 'org.projectlombok:lombok'
 
@@ -75,11 +78,29 @@ tasks.named('test') {
     useJUnitPlatform()
 }
 
+openapiProcessor {
+    spring {
+        processor 'io.openapiprocessor:openapi-processor-spring:2021.4'
+        apiPath "$projectDir/src/main/resources/api-definition.yaml"
+        targetDir "$projectDir/build/generated/sources/openapi"
+        mapping "$projectDir/src/main/resources/api-mappings.yaml"
+        showWarnings true
+    }
+}
+sourceSets.main.java.srcDir 'build/generated/sources/openapi'
+compileJava.dependsOn('processSpring')
+
 spotless {
     java {
         removeUnusedImports()
         endWithNewline()
         toggleOffOn()
+
+        // target 'src/main/java**/*.java', 'src/test/java**/*.java' // not generated
+        target project.fileTree(project.rootDir) {
+            include '**/*.java'
+            exclude '**/generated/**/*.java'
+        }
     }
 }
 project.tasks.check.dependsOn(spotlessCheck)