[Kotlin] Use array for generated annotation

bin/configs/kotlin-spring-boot-delegate.yaml

@@ -0,0 +1,9 @@
+generatorName: kotlin-spring
+outputDir: samples/server/petstore/kotlin-springboot-delegate
+inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/kotlin-spring
+additionalProperties:
+  library: spring-boot
+  delegatePattern: "true"
+  swaggerAnnotations: "true"
+  beanValidations: "true"

modules/openapi-generator/src/main/resources/kotlin-spring/generatedAnnotation.mustache

@@ -1 +1 @@
-@javax.annotation.Generated(value = ["{{generatorClass}}"]{{^hideGenerationTimestamp}}, date = "{{generatedDate}}"{{/hideGenerationTimestamp}})
+@javax.annotation.Generated(value = ["{{generatorClass}}"]{{^hideGenerationTimestamp}}, date = "{{generatedDate}}"{{/hideGenerationTimestamp}})

samples/server/petstore/kotlin-springboot-delegate/.openapi-generator-ignore

@@ -0,0 +1,23 @@
+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md

samples/server/petstore/kotlin-springboot-delegate/.openapi-generator/FILES

@@ -0,0 +1,25 @@
+README.md
+build.gradle.kts
+pom.xml
+settings.gradle
+src/main/kotlin/org/openapitools/Application.kt
+src/main/kotlin/org/openapitools/api/ApiUtil.kt
+src/main/kotlin/org/openapitools/api/Exceptions.kt
+src/main/kotlin/org/openapitools/api/PetApi.kt
+src/main/kotlin/org/openapitools/api/PetApiController.kt
+src/main/kotlin/org/openapitools/api/PetApiDelegate.kt
+src/main/kotlin/org/openapitools/api/StoreApi.kt
+src/main/kotlin/org/openapitools/api/StoreApiController.kt
+src/main/kotlin/org/openapitools/api/StoreApiDelegate.kt
+src/main/kotlin/org/openapitools/api/UserApi.kt
+src/main/kotlin/org/openapitools/api/UserApiController.kt
+src/main/kotlin/org/openapitools/api/UserApiDelegate.kt
+src/main/kotlin/org/openapitools/model/Category.kt
+src/main/kotlin/org/openapitools/model/InlineObject.kt
+src/main/kotlin/org/openapitools/model/InlineObject1.kt
+src/main/kotlin/org/openapitools/model/ModelApiResponse.kt
+src/main/kotlin/org/openapitools/model/Order.kt
+src/main/kotlin/org/openapitools/model/Pet.kt
+src/main/kotlin/org/openapitools/model/Tag.kt
+src/main/kotlin/org/openapitools/model/User.kt
+src/main/resources/application.yaml

samples/server/petstore/kotlin-springboot-delegate/.openapi-generator/VERSION

@@ -0,0 +1 @@
+5.0.0-SNAPSHOT

samples/server/petstore/kotlin-springboot-delegate/README.md

@@ -0,0 +1,21 @@
+# openAPIPetstore
+
+This Kotlin based [Spring Boot](https://spring.io/projects/spring-boot) application has been generated using the [OpenAPI Generator](https://github.com/OpenAPITools/openapi-generator).
+
+## Getting Started
+
+This document assumes you have either maven or gradle available, either via the wrapper or otherwise. This does not come with a gradle / maven wrapper checked in.
+
+By default a [`pom.xml`](pom.xml) file will be generated. If you specified `gradleBuildFile=true` when generating this project, a `build.gradle.kts` will also be generated. Note this uses [Gradle Kotlin DSL](https://github.com/gradle/kotlin-dsl).
+
+To build the project using maven, run:
+```bash
+mvn package && java -jar target/openapi-spring-1.0.0.jar
+```
+
+To build the project using gradle, run:
+```bash
+gradle build && java -jar build/libs/openapi-spring-1.0.0.jar
+```
+
+If all builds successfully, the server should run on [http://localhost:8080/](http://localhost:8080/)

samples/server/petstore/kotlin-springboot-delegate/build.gradle.kts

@@ -0,0 +1,54 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+buildscript {
+    repositories {
+        jcenter()
+        maven { url = uri("https://repo1.maven.org/maven2") }
+    }
+    dependencies {
+        classpath("org.springframework.boot:spring-boot-gradle-plugin:2.2.0.M3")
+    }
+}
+
+group = "org.openapitools"
+version = "1.0.0"
+
+repositories {
+    jcenter()
+    maven { url = uri("https://repo1.maven.org/maven2") }
+}
+
+tasks.withType<KotlinCompile> {
+    kotlinOptions.jvmTarget = "1.8"
+}
+
+plugins {
+    val kotlinVersion = "1.3.30"
+    id("org.jetbrains.kotlin.jvm") version kotlinVersion
+    id("org.jetbrains.kotlin.plugin.jpa") version kotlinVersion
+    id("org.jetbrains.kotlin.plugin.spring") version kotlinVersion
+    id("org.springframework.boot") version "2.2.0.M3"
+    id("io.spring.dependency-management") version "1.0.5.RELEASE"
+}
+
+dependencies {
+	val kotlinxCoroutinesVersion="1.2.0"
+    compile("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
+    compile("org.jetbrains.kotlin:kotlin-reflect")
+    compile("org.springframework.boot:spring-boot-starter-web")
+    compile("io.swagger:swagger-annotations:1.5.21")
+    compile("com.fasterxml.jackson.dataformat:jackson-dataformat-yaml")
+    compile("com.fasterxml.jackson.dataformat:jackson-dataformat-xml")
+    compile("com.fasterxml.jackson.module:jackson-module-kotlin")
+
+    testCompile("org.jetbrains.kotlin:kotlin-test-junit5")
+    testCompile("org.springframework.boot:spring-boot-starter-test") {
+        exclude(module = "junit")
+    }
+}
+
+repositories {
+	maven { url = uri("https://repo1.maven.org/maven2") }
+	maven { url = uri("https://repo.spring.io/snapshot") }
+	maven { url = uri("https://repo.spring.io/milestone") }
+}

samples/server/petstore/kotlin-springboot-delegate/pom.xml

@@ -0,0 +1,160 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.openapitools</groupId>
+    <artifactId>openapi-spring</artifactId>
+    <packaging>jar</packaging>
+    <name>openapi-spring</name>
+    <version>1.0.0</version>
+    <properties>
+        <kotlin.version>1.3.30</kotlin.version>
+	    <kotlinx-coroutines.version>1.2.0</kotlinx-coroutines.version>
+        <javax-annotation-version>1.3.2</javax-annotation-version>
+    </properties>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.2.0.M3</version>
+    </parent>
+    <build>
+        <sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
+        <testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>repackage</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <artifactId>kotlin-maven-plugin</artifactId>
+                <groupId>org.jetbrains.kotlin</groupId>
+                <version>${kotlin.version}</version>
+                <configuration>
+                    <compilerPlugins>
+                        <plugin>spring</plugin>
+                    </compilerPlugins>
+                    <jvmTarget>1.8</jvmTarget>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>compile</id>
+                        <phase>compile</phase>
+                        <goals>
+                            <goal>compile</goal>
+                        </goals>
+                    </execution>
+                    <execution>
+                        <id>test-compile</id>
+                        <phase>test-compile</phase>
+                        <goals>
+                            <goal>test-compile</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.jetbrains.kotlin</groupId>
+                        <artifactId>kotlin-maven-allopen</artifactId>
+                        <version>${kotlin.version}</version>
+                    </dependency>
+                </dependencies>
+            </plugin>
+        </plugins>
+    </build>
+    <dependencies>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-stdlib-jdk8</artifactId>
+            <version>${kotlin.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-reflect</artifactId>
+            <version>${kotlin.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>io.swagger</groupId>
+            <artifactId>swagger-annotations</artifactId>
+            <version>1.5.21</version>
+        </dependency>
+        <!-- @Nullable annotation -->
+        <dependency>
+            <groupId>com.google.code.findbugs</groupId>
+            <artifactId>jsr305</artifactId>
+            <version>3.0.2</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.dataformat</groupId>
+            <artifactId>jackson-dataformat-yaml</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.dataformat</groupId>
+            <artifactId>jackson-dataformat-xml</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.datatype</groupId>
+            <artifactId>jackson-datatype-jsr310</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.module</groupId>
+            <artifactId>jackson-module-kotlin</artifactId>
+        </dependency>
+        <!-- Bean Validation API support -->
+        <dependency>
+            <groupId>javax.validation</groupId>
+            <artifactId>validation-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>javax.annotation</groupId>
+            <artifactId>javax.annotation-api</artifactId>
+            <version>${javax-annotation-version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-test-junit5</artifactId>
+            <version>1.3.31</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+	<repositories>
+		<repository>
+			<id>spring-snapshots</id>
+			<name>Spring Snapshots</name>
+			<url>https://repo.spring.io/snapshot</url>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+		</repository>
+		<repository>
+			<id>spring-milestones</id>
+			<name>Spring Milestones</name>
+			<url>https://repo.spring.io/milestone</url>
+		</repository>
+	</repositories>
+	<pluginRepositories>
+		<pluginRepository>
+			<id>spring-snapshots</id>
+			<name>Spring Snapshots</name>
+			<url>https://repo.spring.io/snapshot</url>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+		</pluginRepository>
+		<pluginRepository>
+			<id>spring-milestones</id>
+			<name>Spring Milestones</name>
+			<url>https://repo.spring.io/milestone</url>
+		</pluginRepository>
+	</pluginRepositories>
+</project>

samples/server/petstore/kotlin-springboot-delegate/settings.gradle

@@ -0,0 +1,15 @@
+pluginManagement {
+	repositories {
+		maven { url = uri("https://repo.spring.io/snapshot") }
+		maven { url = uri("https://repo.spring.io/milestone") }
+		gradlePluginPortal()
+	}
+	resolutionStrategy {
+		eachPlugin {
+			if (requested.id.id == "org.springframework.boot") {
+				useModule("org.springframework.boot:spring-boot-gradle-plugin:${requested.version}")
+			}
+		}
+	}
+}
+rootProject.name = "openapi-spring"

samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/Application.kt

@@ -0,0 +1,14 @@
+package org.openapitools
+
+import org.springframework.boot.runApplication
+import org.springframework.context.annotation.ComponentScan
+import org.springframework.boot.autoconfigure.SpringBootApplication
+
+
+@SpringBootApplication
+@ComponentScan(basePackages = ["org.openapitools", "org.openapitools.api", "org.openapitools.model"])
+class Application
+
+fun main(args: Array<String>) {
+    runApplication<Application>(*args)
+}

samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/ApiUtil.kt

@@ -0,0 +1,19 @@
+package org.openapitools.api
+
+import org.springframework.web.context.request.NativeWebRequest
+
+import javax.servlet.http.HttpServletResponse
+import java.io.IOException
+
+object ApiUtil {
+    fun setExampleResponse(req: NativeWebRequest, contentType: String, example: String) {
+        try {
+            val res = req.getNativeResponse(HttpServletResponse::class.java)
+            res?.characterEncoding = "UTF-8"
+            res?.addHeader("Content-Type", contentType)
+            res?.writer?.print(example)
+        } catch (e: IOException) {
+            throw RuntimeException(e)
+        }
+    }
+}

samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/Exceptions.kt

@@ -0,0 +1,29 @@
+package org.openapitools.api
+
+import org.springframework.http.HttpStatus
+import org.springframework.web.bind.annotation.ControllerAdvice
+import org.springframework.web.bind.annotation.ExceptionHandler
+import javax.servlet.http.HttpServletResponse
+import javax.validation.ConstraintViolationException
+
+// TODO Extend ApiException for custom exception handling, e.g. the below NotFound exception
+sealed class ApiException(msg: String, val code: Int) : Exception(msg)
+
+class NotFoundException(msg: String, code: Int = HttpStatus.NOT_FOUND.value()) : ApiException(msg, code)
+
+
+@ControllerAdvice
+class DefaultExceptionHandler {
+
+    @ExceptionHandler(value = [ApiException::class])
+    fun onApiException(ex: ApiException, response: HttpServletResponse): Unit =
+        response.sendError(ex.code, ex.message)
+
+    @ExceptionHandler(value = [NotImplementedError::class])
+    fun onNotImplemented(ex: NotImplementedError, response: HttpServletResponse): Unit =
+        response.sendError(HttpStatus.NOT_IMPLEMENTED.value())
+
+    @ExceptionHandler(value = [ConstraintViolationException::class])
+    fun onConstraintViolation(ex: ConstraintViolationException, response: HttpServletResponse): Unit =
+        response.sendError(HttpStatus.BAD_REQUEST.value(), ex.constraintViolations.joinToString(", ") { it.message })
+}