Improve RabbitMQ support in CLI

This commit deprecates the proprietary EnableRabbitMessaging annotation
in favour of the standard @EnableRabbit introduced as of Spring Rabbit
1.4.

Fixes gh-1494

spring-boot-cli/samples/rabbit.groovy

@@ -4,7 +4,7 @@ import java.util.concurrent.CountDownLatch
 
 @Log
 @Configuration
-@EnableRabbitMessaging
+@EnableRabbit
 class RabbitExample implements CommandLineRunner {
 
 	private CountDownLatch latch = new CountDownLatch(1)
@@ -12,52 +12,21 @@ class RabbitExample implements CommandLineRunner {
 	@Autowired
 	RabbitTemplate rabbitTemplate
 
-	private String queueName = "spring-boot"
-
-	@Bean
-	Queue queue() {
-		new Queue(queueName, false)
-	}
-
-	@Bean
-	TopicExchange exchange() {
-		new TopicExchange("spring-boot-exchange")
-	}
-
-	/**
-	 * The queue and topic exchange cannot be inlined inside this method and have
-	 * dynamic creation with Spring AMQP work properly.
-	 */
-	@Bean
-	Binding binding(Queue queue, TopicExchange exchange) {
-		BindingBuilder
-				.bind(queue)
-				.to(exchange)
-				.with("spring-boot")
-	}
-
-	@Bean
-	SimpleMessageListenerContainer container(CachingConnectionFactory connectionFactory) {
-		return new SimpleMessageListenerContainer(
-		connectionFactory: connectionFactory,
-		queueNames: [queueName],
-		messageListener: new MessageListenerAdapter(new Receiver(latch:latch), "receive")
-		)
-	}
-
 	void run(String... args) {
 		log.info "Sending RabbitMQ message..."
-		rabbitTemplate.convertAndSend(queueName, "Greetings from Spring Boot via RabbitMQ")
+		rabbitTemplate.convertAndSend("spring-boot", "Greetings from Spring Boot via RabbitMQ")
 		latch.await()
 	}
-}
-
-@Log
-class Receiver {
-	CountDownLatch latch
 
+	@RabbitListener(queues = 'spring-boot')
 	def receive(String message) {
 		log.info "Received ${message}"
 		latch.countDown()
 	}
-}
+
+	@Bean
+	Queue queue() {
+		new Queue("spring-boot", false)
+	}
+
+}

spring-boot-cli/src/main/java/org/springframework/boot/cli/compiler/autoconfigure/RabbitCompilerAutoConfiguration.java

@@ -28,14 +28,14 @@ import org.springframework.boot.groovy.EnableRabbitMessaging;
  * {@link CompilerAutoConfiguration} for Spring Rabbit.
  *
  * @author Greg Turnquist
+ * @author Stephane Nicoll
  */
 public class RabbitCompilerAutoConfiguration extends CompilerAutoConfiguration {
 
 	@Override
 	public boolean matches(ClassNode classNode) {
-		// Slightly weird detection algorithm because there is no @Enable annotation for
-		// Integration
-		return AstUtils.hasAtLeastOneAnnotation(classNode, "EnableRabbitMessaging");
+		return AstUtils.hasAtLeastOneAnnotation(classNode, "EnableRabbit")
+				|| AstUtils.hasAtLeastOneAnnotation(classNode, "EnableRabbitMessaging");
 	}
 
 	@Override
@@ -47,7 +47,9 @@ public class RabbitCompilerAutoConfiguration extends CompilerAutoConfiguration {
 
 	@Override
 	public void applyImports(ImportCustomizer imports) throws CompilationFailedException {
-		imports.addStarImports("org.springframework.amqp.rabbit.core",
+		imports.addStarImports("org.springframework.amqp.rabbit.annotation",
+				"org.springframework.amqp.rabbit.core",
+				"org.springframework.amqp.rabbit.config",
 				"org.springframework.amqp.rabbit.connection",
 				"org.springframework.amqp.rabbit.listener",
 				"org.springframework.amqp.rabbit.listener.adapter",

spring-boot-cli/src/main/java/org/springframework/boot/groovy/EnableRabbitMessaging.java

@@ -26,10 +26,13 @@ import org.springframework.boot.cli.compiler.autoconfigure.RabbitCompilerAutoCon
 
 /**
  * Pseudo annotation used to trigger {@link RabbitCompilerAutoConfiguration}.
+ *
+ * @deprecated since 1.2.0 in favor of {@code EnableRabbit}
  */
 @Target(ElementType.TYPE)
 @Documented
 @Retention(RetentionPolicy.RUNTIME)
+@Deprecated
 public @interface EnableRabbitMessaging {
 
 }

spring-boot-docs/src/main/asciidoc/spring-boot-cli.adoc

@@ -122,7 +122,7 @@ The following items are used as ``grab hints'':
 |`@Test`
 |JUnit.
 
-|`@EnableRabbitMessaging`
+|`@EnableRabbit`
 |RabbitMQ.
 
 |`@EnableReactor`