TestcontainersBeanRegistrationAotProcessor that replaces InstanceSupp…

…lier of Container by a reflection equivalent
spring-projects · Oct 26, 2024 · 2b1535f · 2b1535f
1 parent 4718485
commit 2b1535f
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Showing 5 changed files with 218 additions and 3 deletions.
diff --git a/...rc/dockerTest/java/org/springframework/boot/testcontainers/ImportTestcontainersTests.java b/...rc/dockerTest/java/org/springframework/boot/testcontainers/ImportTestcontainersTests.java
@@ -18,17 +18,26 @@
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
+import java.util.function.BiConsumer;
 
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.Test;
 import org.testcontainers.containers.Container;
 import org.testcontainers.containers.PostgreSQLContainer;
 
+import org.springframework.aot.test.generate.TestGenerationContext;
 import org.springframework.boot.testcontainers.beans.TestcontainerBeanDefinition;
 import org.springframework.boot.testcontainers.context.ImportTestcontainers;
 import org.springframework.boot.testsupport.container.DisabledIfDockerUnavailable;
 import org.springframework.boot.testsupport.container.TestImage;
+import org.springframework.context.ApplicationContextInitializer;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.aot.ApplicationContextAotGenerator;
+import org.springframework.context.support.GenericApplicationContext;
+import org.springframework.core.test.tools.CompileWithForkedClassLoader;
+import org.springframework.core.test.tools.Compiled;
+import org.springframework.core.test.tools.TestCompiler;
+import org.springframework.javapoet.ClassName;
 import org.springframework.test.context.DynamicPropertyRegistry;
 import org.springframework.test.context.DynamicPropertySource;
 
@@ -43,6 +52,8 @@
 @DisabledIfDockerUnavailable
 class ImportTestcontainersTests {
 
+	private final TestGenerationContext generationContext = new TestGenerationContext();
+
 	private AnnotationConfigApplicationContext applicationContext;
 
 	@AfterEach
@@ -122,6 +133,70 @@ void importWhenHasBadArgsDynamicPropertySourceMethod() {
 			.withMessage("@DynamicPropertySource method 'containerProperties' must be static");
 	}
 
+	@Test
+	@CompileWithForkedClassLoader
+	void importTestcontainersImportWithoutValueAotContributionRegistersTestcontainers() {
+		this.applicationContext = new AnnotationConfigApplicationContext();
+		this.applicationContext.register(ImportWithoutValue.class);
+		compile((freshContext, compiled) -> {
+			PostgreSQLContainer<?> container = freshContext.getBean(PostgreSQLContainer.class);
+			assertThat(container).isSameAs(ImportWithoutValue.container);
+		});
+	}
+
+	@Test
+	@CompileWithForkedClassLoader
+	void importTestcontainersImportWithValueAotContributionRegistersTestcontainers() {
+		this.applicationContext = new AnnotationConfigApplicationContext();
+		this.applicationContext.register(ImportWithValue.class);
+		compile((freshContext, compiled) -> {
+			PostgreSQLContainer<?> container = freshContext.getBean(PostgreSQLContainer.class);
+			assertThat(container).isSameAs(ContainerDefinitions.container);
+		});
+	}
+
+	@Test
+	@CompileWithForkedClassLoader
+	void importTestcontainersWithDynamicPropertySourceAotContributionRegistersTestcontainers() {
+		this.applicationContext = new AnnotationConfigApplicationContext();
+		this.applicationContext.register(ContainerDefinitionsWithDynamicPropertySource.class);
+		compile((freshContext, compiled) -> {
+			PostgreSQLContainer<?> container = freshContext.getBean(PostgreSQLContainer.class);
+			assertThat(container).isSameAs(ContainerDefinitionsWithDynamicPropertySource.container);
+		});
+	}
+
+	@Test
+	@CompileWithForkedClassLoader
+	void importTestcontainersWithCustomPostgreSQLContainerAotContributionRegistersTestcontainers() {
+		this.applicationContext = new AnnotationConfigApplicationContext();
+		this.applicationContext.register(CustomPostgreSQLContainerDefinitions.class);
+		compile((freshContext, compiled) -> {
+			PostgreSQLContainer<?> container = freshContext.getBean(PostgreSQLContainer.class);
+			assertThat(container).isSameAs(CustomPostgreSQLContainerDefinitions.container);
+		});
+	}
+
+	@SuppressWarnings("unchecked")
+	private void compile(BiConsumer<GenericApplicationContext, Compiled> result) {
+		ClassName className = processAheadOfTime();
+		TestCompiler.forSystem().with(this.generationContext).compile((compiled) -> {
+			GenericApplicationContext freshApplicationContext = new GenericApplicationContext();
+			ApplicationContextInitializer<GenericApplicationContext> initializer = compiled
+				.getInstance(ApplicationContextInitializer.class, className.toString());
+			initializer.initialize(freshApplicationContext);
+			freshApplicationContext.refresh();
+			result.accept(freshApplicationContext, compiled);
+		});
+	}
+
+	private ClassName processAheadOfTime() {
+		ClassName className = new ApplicationContextAotGenerator().processAheadOfTime(this.applicationContext,
+				this.generationContext);
+		this.generationContext.writeGeneratedContent();
+		return className;
+	}
+
 	@ImportTestcontainers
 	static class ImportWithoutValue {
 
@@ -196,4 +271,19 @@ void containerProperties() {
 
 	}
 
+	@ImportTestcontainers
+	static class CustomPostgreSQLContainerDefinitions {
+
+		static CustomPostgreSQLContainer container = new CustomPostgreSQLContainer();
+
+	}
+
+	static class CustomPostgreSQLContainer extends PostgreSQLContainer<CustomPostgreSQLContainer> {
+
+		CustomPostgreSQLContainer() {
+			super("postgres:14");
+		}
+
+	}
+
 }
diff --git a/...ava/org/springframework/boot/testcontainers/context/TestcontainerFieldBeanDefinition.java b/...ava/org/springframework/boot/testcontainers/context/TestcontainerFieldBeanDefinition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 the original author or authors.
+ * Copyright 2012-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -38,9 +38,10 @@ class TestcontainerFieldBeanDefinition extends RootBeanDefinition implements Tes
 	TestcontainerFieldBeanDefinition(Field field, Container<?> container) {
 		this.container = container;
 		this.annotations = MergedAnnotations.from(field);
-		this.setBeanClass(container.getClass());
+		setBeanClass(container.getClass());
 		setInstanceSupplier(() -> container);
 		setRole(ROLE_INFRASTRUCTURE);
+		setAttribute(TestcontainerFieldBeanDefinition.class.getName(), field);
 	}
 
 	@Override

diff --git a/...ringframework/boot/testcontainers/context/TestcontainersBeanRegistrationAotProcessor.java b/...ringframework/boot/testcontainers/context/TestcontainersBeanRegistrationAotProcessor.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2012-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.testcontainers.context;
+
+import java.lang.reflect.Field;
+
+import javax.lang.model.element.Modifier;
+
+import org.testcontainers.containers.Container;
+
+import org.springframework.aot.generate.GeneratedMethod;
+import org.springframework.aot.generate.GenerationContext;
+import org.springframework.beans.factory.aot.BeanRegistrationAotContribution;
+import org.springframework.beans.factory.aot.BeanRegistrationAotProcessor;
+import org.springframework.beans.factory.aot.BeanRegistrationCode;
+import org.springframework.beans.factory.aot.BeanRegistrationCodeFragments;
+import org.springframework.beans.factory.aot.BeanRegistrationCodeFragmentsDecorator;
+import org.springframework.beans.factory.support.InstanceSupplier;
+import org.springframework.beans.factory.support.RegisteredBean;
+import org.springframework.beans.factory.support.RootBeanDefinition;
+import org.springframework.javapoet.ClassName;
+import org.springframework.javapoet.CodeBlock;
+import org.springframework.util.Assert;
+import org.springframework.util.ClassUtils;
+import org.springframework.util.ReflectionUtils;
+
+/**
+ * {@link BeanRegistrationAotProcessor} that replaces InstanceSupplier of
+ * {@link Container} by a reflection equivalent.
+ *
+ * @author Dmytro Nosan
+ */
+class TestcontainersBeanRegistrationAotProcessor implements BeanRegistrationAotProcessor {
+
+	@Override
+	public BeanRegistrationAotContribution processAheadOfTime(RegisteredBean registeredBean) {
+		RootBeanDefinition bd = registeredBean.getMergedBeanDefinition();
+		String attributeName = TestcontainerFieldBeanDefinition.class.getName();
+		Object field = bd.getAttribute(attributeName);
+		if (field != null) {
+			Assert.isInstanceOf(Field.class, field,
+					"BeanDefinition attribute '" + attributeName + "' value must be a type of '" + Field.class + "'");
+			return BeanRegistrationAotContribution.withCustomCodeFragments(
+					(codeFragments) -> new AotContribution(codeFragments, registeredBean, ((Field) field)));
+		}
+		return null;
+	}
+
+	static class AotContribution extends BeanRegistrationCodeFragmentsDecorator {
+
+		private final RegisteredBean registeredBean;
+
+		private final Field field;
+
+		AotContribution(BeanRegistrationCodeFragments delegate, RegisteredBean registeredBean, Field field) {
+			super(delegate);
+			this.registeredBean = registeredBean;
+			this.field = field;
+		}
+
+		@Override
+		public ClassName getTarget(RegisteredBean registeredBean) {
+			return ClassName.get(this.registeredBean.getBeanClass());
+		}
+
+		@Override
+		public CodeBlock generateInstanceSupplierCode(GenerationContext generationContext,
+				BeanRegistrationCode beanRegistrationCode, boolean allowDirectSupplierShortcut) {
+			Class<?> beanClass = this.registeredBean.getBeanClass();
+			Class<?> testClass = this.field.getDeclaringClass();
+			String fieldName = this.field.getName();
+			GeneratedMethod generatedMethod = beanRegistrationCode.getMethods()
+				.add("getInstance", (method) -> method
+					.addJavadoc("Get the bean instance for '$L'.", this.registeredBean.getBeanName())
+					.addModifiers(Modifier.PRIVATE, Modifier.STATIC)
+					.returns(beanClass)
+					.addStatement("$T<?> testClass = $T.forName($S, null)", Class.class, ClassUtils.class,
+							testClass.getName())
+					.addStatement("$T field = $T.findField(testClass, $S)", Field.class, ReflectionUtils.class,
+							fieldName)
+					.addStatement("$T.notNull(field, $S)", Assert.class, "Field '" + fieldName + "' is not found")
+					.addStatement("$T.makeAccessible(field)", ReflectionUtils.class)
+					.addStatement("$T container = ($T) $T.getField(field, null)", beanClass, beanClass,
+							ReflectionUtils.class)
+					.addStatement("$T.notNull(container, $S)", Assert.class,
+							"Container field '" + fieldName + "' must not have a null value")
+					.addStatement("return container")
+					.addException(ClassNotFoundException.class));
+			return CodeBlock.of("$T.using($T::$L)", InstanceSupplier.class, beanRegistrationCode.getClassName(),
+					generatedMethod.getName());
+		}
+
+	}
+
+}
diff --git a/...java/org/springframework/boot/testcontainers/properties/TestcontainersPropertySource.java b/...java/org/springframework/boot/testcontainers/properties/TestcontainersPropertySource.java
@@ -26,9 +26,11 @@
 import org.testcontainers.containers.Container;
 
 import org.springframework.beans.BeansException;
+import org.springframework.beans.factory.aot.BeanRegistrationExcludeFilter;
 import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
 import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
 import org.springframework.beans.factory.support.BeanDefinitionRegistry;
+import org.springframework.beans.factory.support.RegisteredBean;
 import org.springframework.beans.factory.support.RootBeanDefinition;
 import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.context.ApplicationEventPublisherAware;
@@ -166,4 +168,13 @@ public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)
 
 	}
 
+	static class TestcontainersEventPublisherBeanRegistrationExcludeFilter implements BeanRegistrationExcludeFilter {
+
+		@Override
+		public boolean isExcludedFromAotProcessing(RegisteredBean registeredBean) {
+			return EventPublisherRegistrar.NAME.equals(registeredBean.getBeanName());
+		}
+
+	}
+
 }
diff --git a/...-boot-project/spring-boot-testcontainers/src/main/resources/META-INF/spring/aot.factories b/...-boot-project/spring-boot-testcontainers/src/main/resources/META-INF/spring/aot.factories
@@ -1,5 +1,9 @@
 org.springframework.beans.factory.aot.BeanRegistrationExcludeFilter=\
-org.springframework.boot.testcontainers.service.connection.ConnectionDetailsRegistrar.ServiceConnectionBeanRegistrationExcludeFilter
+org.springframework.boot.testcontainers.service.connection.ConnectionDetailsRegistrar.ServiceConnectionBeanRegistrationExcludeFilter,\
+org.springframework.boot.testcontainers.properties.TestcontainersPropertySource.TestcontainersEventPublisherBeanRegistrationExcludeFilter
 
 org.springframework.aot.hint.RuntimeHintsRegistrar=\
 org.springframework.boot.testcontainers.service.connection.ContainerConnectionDetailsFactory.ContainerConnectionDetailsFactoriesRuntimeHints
+
+org.springframework.beans.factory.aot.BeanRegistrationAotProcessor=\
+org.springframework.boot.testcontainers.context.TestcontainersBeanRegistrationAotProcessor