Add Graal native image support

Fix spring-projects-experimental#29

.gitignore

@@ -6,3 +6,4 @@ build/
 *.iml
 *.ipr
 out/
+samples/graal-webapp/org.springframework.fu.sample.graal.applicationkt

README.adoc

@@ -67,7 +67,7 @@ You can have a look to the sample applications:
 
 * /~https://github.com/spring-projects/spring-fu/tree/master/samples/reactive-webapp[Reactive webapp]
 * /~https://github.com/spring-projects/spring-fu/tree/master/samples/coroutine-webapp[Coroutine webapp]
-* /~https://github.com/spring-projects/spring-fu/tree/master/samples/minimal-webapp[Minimal webapp]
+* /~https://github.com/spring-projects/spring-fu/tree/master/samples/graal-webapp[Graal native image webapp]
 
 === Credits
 

build.gradle.kts

@@ -70,4 +70,8 @@ subprojects {
 			dependency("org.jetbrains.kotlinx:kotlinx-coroutines-reactor:$coroutinesVersion")
 		}
 	}
+	configurations.all {
+		exclude(module = "spring-boot-autoconfigure")
+		exclude(module = "javax.annotation-api")
+	}
 }

core/build.gradle.kts

@@ -1,10 +1,5 @@
 dependencies {
-	api("org.springframework.boot:spring-boot-starter") {
-		exclude("spring-boot-autoconfigure")
-		exclude("javax.annotation-api")
-		exclude("snakeyaml")
-
-	}
+	api("org.springframework.boot:spring-boot-starter")
 	api("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
 	api("org.jetbrains.kotlin:kotlin-reflect")
 

core/src/main/kotlin/org/springframework/fu/ApplicationDsl.kt

@@ -20,13 +20,17 @@ import org.springframework.boot.SpringApplication
 import org.springframework.boot.WebApplicationType
 import org.springframework.boot.context.properties.bind.Bindable
 import org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext
+import org.springframework.context.ApplicationContext
 import org.springframework.context.ApplicationEvent
 import org.springframework.context.ApplicationListener
 import org.springframework.context.support.BeanDefinitionDsl
 import org.springframework.context.support.GenericApplicationContext
 import org.springframework.context.support.ReloadableResourceBundleMessageSource
 import org.springframework.context.support.registerBean
 import org.springframework.fu.properties.ConfigurationPropertiesBinder
+import org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor
+
+
 
 /**
  * @author Sebastien Deleuze
@@ -37,14 +41,15 @@ open class ApplicationDsl(private val startServer: Boolean, val init: Applicatio
 
 	override fun initialize(context: GenericApplicationContext) {
 		this.context = context
+		context.registerBean(AutowiredAnnotationBeanPostProcessor::class.java)
 
-		init()
 		context.registerBean("messageSource") {
 			ReloadableResourceBundleMessageSource().apply {
 				setBasename("messages")
 				setDefaultEncoding("UTF-8")
 			}
 		}
+		init()
 		super.initialize(context)
 	}
 
@@ -86,7 +91,11 @@ open class ApplicationDsl(private val startServer: Boolean, val init: Applicatio
 	 * @param profiles [ApplicationContext] profiles separated by commas.
 	 */
 	fun run(args: Array<String> = emptyArray(), profiles: String = "") {
-		val application = SpringApplication(Application::class.java)
+		val application = object: SpringApplication(Application::class.java) {
+			override fun load(context: ApplicationContext?, sources: Array<out Any>?) {
+				// We don't want the annotation bean definition reader
+			}
+		}
 		application.webApplicationType = if(startServer) WebApplicationType.REACTIVE else WebApplicationType.NONE
 		application.setApplicationContextClass(
 				if (startServer)
@@ -98,6 +107,7 @@ open class ApplicationDsl(private val startServer: Boolean, val init: Applicatio
 			application.setAdditionalProfiles(*profiles.split(",").map { it.trim() }.toTypedArray())
 		}
 		application.addInitializers(this)
+		application.setRegisterShutdownHook(false)
 		application.run(*args)
 	}
 

samples/coroutine-webapp/build.gradle.kts

@@ -9,7 +9,6 @@ kotlin {
 }
 
 dependencies {
-	api("org.springframework.boot:spring-boot-starter")
 	api(project(":modules:webflux-jackson"))
 	api(project(":modules:mongodb-coroutine"))
 	api(project(":modules:mongodb-embedded"))

samples/graal-webapp/README.adoc

@@ -0,0 +1,4 @@
+= Graal webapp
+
+This is a Spring Fu example of a minimal webapp compiled as a /~https://github.com/oracle/graal/tree/master/substratevm[Graal native image]. You can build it by running `build.sh` with Graal 1.0 RC5 or above.
+

samples/minimal-webapp/build.gradle.kts → samples/graal-webapp/build.gradle.kts

@@ -5,13 +5,19 @@ plugins {
 }
 
 dependencies {
-	api("org.springframework.boot:spring-boot-starter")
 	api(project(":modules:webflux"))
 
-	implementation("io.projectreactor.netty:reactor-netty")
+	// Remove when Graal RC6 will be released
+	implementation("org.aspectj:aspectjweaver")
+	implementation("com.jcraft:jzlib:1.1.3")
 
 	testImplementation("org.junit.jupiter:junit-jupiter-api")
 	testImplementation("org.springframework:spring-test")
 
 	testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine")
 }
+
+configurations.all {
+	exclude(module = "netty-transport-native-epoll")
+	exclude(module = "netty-transport-native-unix-common")
+}

samples/graal-webapp/build.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env sh
+
+cd ../../
+./gradlew clean build -x test
+cd samples/graal-webapp
+unzip build/libs/graal-webapp-0.0.1.BUILD-SNAPSHOT.jar -d build/libs/graal-webapp-0.0.1.BUILD-SNAPSHOT
+native-image -H:ReflectionConfigurationFiles=graal.json -Dio.netty.noUnsafe=true -H:+ReportUnsupportedElementsAtRuntime -Dfile.encoding=UTF-8 -cp ".:$(echo build/libs/graal-webapp-0.0.1.BUILD-SNAPSHOT/BOOT-INF/lib/*.jar | tr ' ' ':')":build/libs/graal-webapp-0.0.1.BUILD-SNAPSHOT/BOOT-INF/classes org.springframework.fu.sample.graal.ApplicationKt

samples/graal-webapp/graal.json

@@ -0,0 +1,50 @@
+[
+  {
+    "name": "org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor",
+    "methods": [
+      { "name": "<init>", "parameterTypes": [] }
+    ]
+  },
+  {
+    "name": "org.apache.logging.log4j.message.ReusableMessageFactory",
+    "methods": [
+      { "name": "<init>", "parameterTypes": [] }
+    ]
+  },
+  {
+    "name": "org.apache.logging.log4j.message.DefaultFlowMessageFactory",
+    "methods": [
+      { "name": "<init>", "parameterTypes": [] }
+    ]
+  },
+  {
+    "name": "org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext",
+    "methods": [
+      { "name": "<init>", "parameterTypes": [] }
+    ]
+  },
+  {
+    "name": "org.springframework.context.support.GenericApplicationContext",
+    "methods": [
+      { "name": "<init>", "parameterTypes": [] }
+    ]
+  },
+  {
+    "name": "org.springframework.context.annotation.ConfigurationClassPostProcessor",
+    "methods": [
+      { "name": "<init>", "parameterTypes": [] }
+    ]
+  },
+  {
+    "name": "org.springframework.http.codec.support.DefaultServerCodecConfigurer",
+    "methods": [
+      { "name": "<init>", "parameterTypes": [] }
+    ]
+  },
+  {
+    "name": "io.netty.channel.socket.nio.NioServerSocketChannel",
+    "methods": [
+      { "name": "<init>", "parameterTypes": [] }
+    ]
+  }
+]

samples/minimal-webapp/src/main/kotlin/org/springframework/fu/sample/minimal/Application.kt → samples/graal-webapp/src/main/kotlin/org/springframework/fu/sample/graal/Application.kt

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.fu.sample.minimal
+package org.springframework.fu.sample.graal
 
 import org.springframework.core.io.ClassPathResource
 import org.springframework.fu.application

samples/minimal-webapp/src/test/kotlin/org/springframework/fu/sample/minimal/IntegrationTests.kt → samples/graal-webapp/src/test/kotlin/org/springframework/fu/sample/graal/IntegrationTests.kt

@@ -1,4 +1,4 @@
-package org.springframework.fu.sample.minimal
+package org.springframework.fu.sample.graal
 
 import org.junit.jupiter.api.AfterAll
 import org.junit.jupiter.api.BeforeAll

settings.gradle.kts

@@ -15,7 +15,7 @@ include(
 		"modules:webflux-mustache",
 		"modules:webflux-thymeleaf",
 		"samples:coroutine-webapp",
-		"samples:minimal-webapp",
+		"samples:graal-webapp",
 		"samples:reactive-webapp"
 )