feat: new module for generating OpenAPI contract at build-time for SpringMVC applications

src/main/java/tech/jhipster/lite/generator/server/springboot/apidocumentation/openapicontract/application/OpenApiContractApplicationService.java

@@ -0,0 +1,20 @@
+package tech.jhipster.lite.generator.server.springboot.apidocumentation.openapicontract.application;
+
+import org.springframework.stereotype.Service;
+import tech.jhipster.lite.generator.server.springboot.apidocumentation.openapicontract.domain.OpenApiContractModuleFactory;
+import tech.jhipster.lite.module.domain.JHipsterModule;
+import tech.jhipster.lite.module.domain.properties.JHipsterModuleProperties;
+
+@Service
+public class OpenApiContractApplicationService {
+
+  private final OpenApiContractModuleFactory factory;
+
+  public OpenApiContractApplicationService() {
+    factory = new OpenApiContractModuleFactory();
+  }
+
+  public JHipsterModule buildModule(JHipsterModuleProperties properties) {
+    return factory.buildModule(properties);
+  }
+}

src/main/java/tech/jhipster/lite/generator/server/springboot/apidocumentation/openapicontract/domain/OpenApiContractModuleFactory.java

@@ -0,0 +1,59 @@
+package tech.jhipster.lite.generator.server.springboot.apidocumentation.openapicontract.domain;
+
+import static tech.jhipster.lite.module.domain.JHipsterModule.*;
+
+import tech.jhipster.lite.module.domain.JHipsterModule;
+import tech.jhipster.lite.module.domain.mavenplugin.MavenPlugin;
+import tech.jhipster.lite.module.domain.mavenplugin.MavenPlugin.MavenPluginOptionalBuilder;
+import tech.jhipster.lite.module.domain.properties.JHipsterModuleProperties;
+import tech.jhipster.lite.shared.error.domain.Assert;
+
+public class OpenApiContractModuleFactory {
+
+  public JHipsterModule buildModule(JHipsterModuleProperties properties) {
+    Assert.notNull("properties", properties);
+
+    //@formatter:off
+    return moduleBuilder(properties)
+      .mavenPlugins()
+        .pluginManagement(openApiPluginManagement(properties))
+        .plugin(openApiPlugin().build())
+        .and()
+      .build();
+    //@formatter:on
+  }
+
+  private MavenPluginOptionalBuilder openApiPlugin() {
+    return mavenPlugin().groupId("io.github.kbuntrock").artifactId("openapi-maven-plugin");
+  }
+
+  private MavenPlugin openApiPluginManagement(JHipsterModuleProperties properties) {
+    return openApiPlugin()
+      .versionSlug("openapi-maven-plugin")
+      .addExecution(pluginExecution().goals("documentation").id("generate-openapi-contract"))
+      .configuration(
+        """
+        <apiConfiguration>
+          <library>SPRING_MVC</library>
+        </apiConfiguration>
+        <apis>
+          <api>
+            <filename>openapi-contract.yml</filename>
+            <locations>
+              <location>%s</location>
+            </locations>
+            <tag>
+              <substitutions>
+                <sub>
+                  <regex>Resource$</regex>
+                  <substitute />
+                </sub>
+              </substitutions>
+            </tag>
+          </api>
+        </apis>\
+        """.formatted(properties.basePackage())
+      )
+      .build();
+  }
+}

src/main/java/tech/jhipster/lite/generator/server/springboot/apidocumentation/openapicontract/infrastructure/primary/OpenApiContractModuleConfiguration.java

@@ -0,0 +1,24 @@
+package tech.jhipster.lite.generator.server.springboot.apidocumentation.openapicontract.infrastructure.primary;
+
+import static tech.jhipster.lite.generator.slug.domain.JHLiteFeatureSlug.SPRING_MVC_SERVER;
+import static tech.jhipster.lite.generator.slug.domain.JHLiteModuleSlug.*;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import tech.jhipster.lite.generator.server.springboot.apidocumentation.openapicontract.application.OpenApiContractApplicationService;
+import tech.jhipster.lite.module.domain.resource.*;
+
+@Configuration
+class OpenApiContractModuleConfiguration {
+
+  @Bean
+  JHipsterModuleResource openApiContractModule(OpenApiContractApplicationService openApiContract) {
+    return JHipsterModuleResource.builder()
+      .slug(OPENAPI_CONTRACT)
+      .propertiesDefinition(JHipsterModulePropertiesDefinition.builder().addBasePackage().build())
+      .apiDoc("Spring Boot - OpenAPI", "Generates OpenAPI contract at build time using openapi-maven-plugin")
+      .organization(JHipsterModuleOrganization.builder().addDependency(SPRING_MVC_SERVER).addDependency(MAVEN_JAVA).build())
+      .tags("server", "spring", "spring-boot", "documentation", "swagger", "openapi")
+      .factory(openApiContract::buildModule);
+  }
+}

src/main/java/tech/jhipster/lite/generator/server/springboot/apidocumentation/openapicontract/package-info.java

@@ -0,0 +1,2 @@
+@tech.jhipster.lite.BusinessContext
+package tech.jhipster.lite.generator.server.springboot.apidocumentation.openapicontract;

src/main/java/tech/jhipster/lite/generator/slug/domain/JHLiteModuleSlug.java

@@ -80,6 +80,7 @@ public enum JHLiteModuleSlug implements JHipsterModuleSlugFactory {
   MYSQL("mysql"),
   NEO4J("neo4j"),
   NEO4J_MIGRATIONS("neo4j-migrations"),
+  OPENAPI_CONTRACT("openapi-contract"),
   OPTIONAL_TYPESCRIPT("optional-typescript"),
   PAGINATION_DOMAIN("pagination-domain"),
   PLAYWRIGHT_COMPONENT_TESTS("playwright-component-tests"),

src/main/java/tech/jhipster/lite/module/domain/properties/JHipsterBasePackage.java

@@ -25,4 +25,9 @@ public String get() {
   public String path() {
     return basePackage().replace('.', '/');
   }
+
+  @Override
+  public String toString() {
+    return basePackage;
+  }
 }

src/main/resources/generator/dependencies/pom.xml

@@ -69,6 +69,7 @@
     <surefire-plugin.version>3.5.0</surefire-plugin.version>
     <failsafe-plugin.version>3.5.0</failsafe-plugin.version>
     <asciidoctor-maven-plugin.version>3.0.0</asciidoctor-maven-plugin.version>
+    <openapi-maven-plugin.version>0.0.20</openapi-maven-plugin.version>
   </properties>
 
   <dependencyManagement>
@@ -394,6 +395,11 @@
         <artifactId>asciidoctor-maven-plugin</artifactId>
         <version>${asciidoctor-maven-plugin.version}</version>
       </dependency>
+      <dependency>
+        <groupId>io.github.kbuntrock</groupId>
+        <artifactId>openapi-maven-plugin</artifactId>
+        <version>${openapi-maven-plugin.version}</version>
+      </dependency>
     </dependencies>
   </dependencyManagement>
 </project>

src/test/features/server/springboot/openapi-contract.feature

@@ -0,0 +1,6 @@
+Feature: OpenAPI contract generation
+
+  Scenario: Should apply OpenAPI contract module
+    When I apply "openapi-contract" module to default project with maven file
+      | packageName | tech.jhipster.chips |
+    Then I should have "openapi-maven-plugin" in "pom.xml"

src/test/java/tech/jhipster/lite/generator/server/springboot/apidocumentation/openapicontract/domain/OpenApiContractModuleFactoryTest.java

@@ -0,0 +1,75 @@
+package tech.jhipster.lite.generator.server.springboot.apidocumentation.openapicontract.domain;
+
+import static tech.jhipster.lite.TestFileUtils.tmpDirForTest;
+import static tech.jhipster.lite.module.domain.JHipsterModulesFixture.propertiesBuilder;
+import static tech.jhipster.lite.module.infrastructure.secondary.JHipsterModulesAssertions.assertThatModuleWithFiles;
+import static tech.jhipster.lite.module.infrastructure.secondary.JHipsterModulesAssertions.pomFile;
+
+import org.junit.jupiter.api.Test;
+import tech.jhipster.lite.UnitTest;
+import tech.jhipster.lite.module.domain.JHipsterModule;
+import tech.jhipster.lite.module.domain.properties.JHipsterModuleProperties;
+
+@UnitTest
+class OpenApiContractModuleFactoryTest {
+
+  private static final OpenApiContractModuleFactory factory = new OpenApiContractModuleFactory();
+
+  @Test
+  void shouldBuildModuleOnProjectWithoutDefaultGoal() {
+    JHipsterModuleProperties properties = propertiesBuilder(tmpDirForTest()).basePackage("tech.jhipster.jhlitest").build();
+
+    JHipsterModule module = factory.buildModule(properties);
+
+    assertThatModuleWithFiles(module, pomFile())
+      .hasFile("pom.xml")
+      .containing(
+        // language=xml
+        """
+              <plugin>
+                <groupId>io.github.kbuntrock</groupId>
+                <artifactId>openapi-maven-plugin</artifactId>
+              </plugin>\
+        """
+      )
+      .containing(
+        // language=xml
+        """
+                <plugin>
+                  <groupId>io.github.kbuntrock</groupId>
+                  <artifactId>openapi-maven-plugin</artifactId>
+                  <version>${openapi-maven-plugin.version}</version>
+                  <executions>
+                    <execution>
+                      <id>generate-openapi-contract</id>
+                      <goals>
+                        <goal>documentation</goal>
+                      </goals>
+                    </execution>
+                  </executions>
+                  <configuration>
+                    <apiConfiguration>
+                      <library>SPRING_MVC</library>
+                    </apiConfiguration>
+                    <apis>
+                      <api>
+                        <filename>openapi-contract.yml</filename>
+                        <locations>
+                          <location>tech.jhipster.jhlitest</location>
+                        </locations>
+                        <tag>
+                          <substitutions>
+                            <sub>
+                              <regex>Resource$</regex>
+                              <substitute />
+                            </sub>
+                          </substitutions>
+                        </tag>
+                      </api>
+                    </apis>
+                  </configuration>
+                </plugin>\
+        """
+      );
+  }
+}

tests-ci/generate.sh

@@ -137,6 +137,7 @@ elif [[ $application == 'fullapp' ]]; then
     "jpa-pagination" \
     "spring-boot-async" \
     "spring-boot-devtools" \
+    "openapi-contract" \
     "logstash" \
     "jib" \
     "dockerfile-${java_build_tool}" \