From d4fc77f453cb1c1cd1040e5da51aff59039d9951 Mon Sep 17 00:00:00 2001
From: Gary Russell <grussell@vmware.com>
Date: Wed, 20 Jul 2022 10:11:05 -0400
Subject: [PATCH] GH-1467: Support Spring AOT for Native Image

Resolves https://github.com/spring-projects/spring-amqp/issues/1467

Migrate proxy hints from spring-native.

Also add a proxy hint for `ChannelProxy` when it is also a `PublisherCallbackChannel`.
---
 .../aot/RabbitRuntimeHintsRegistrar.java      | 53 +++++++++++++++++++
 .../amqp/rabbit/aot/package-info.java         |  6 +++
 .../resources/META-INF/spring/aot.factories   |  1 +
 3 files changed, 60 insertions(+)
 create mode 100644 spring-rabbit/src/main/java/org/springframework/amqp/rabbit/aot/RabbitRuntimeHintsRegistrar.java
 create mode 100644 spring-rabbit/src/main/java/org/springframework/amqp/rabbit/aot/package-info.java
 create mode 100644 spring-rabbit/src/main/resources/META-INF/spring/aot.factories

diff --git a/spring-rabbit/src/main/java/org/springframework/amqp/rabbit/aot/RabbitRuntimeHintsRegistrar.java b/spring-rabbit/src/main/java/org/springframework/amqp/rabbit/aot/RabbitRuntimeHintsRegistrar.java
new file mode 100644
index 0000000000..f5c69b2a7d
--- /dev/null
+++ b/spring-rabbit/src/main/java/org/springframework/amqp/rabbit/aot/RabbitRuntimeHintsRegistrar.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2022 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.amqp.rabbit.aot;
+
+import org.springframework.amqp.rabbit.annotation.RabbitListener;
+import org.springframework.amqp.rabbit.connection.ChannelProxy;
+import org.springframework.amqp.rabbit.connection.PublisherCallbackChannel;
+import org.springframework.aop.SpringProxy;
+import org.springframework.aop.framework.Advised;
+import org.springframework.aot.hint.ProxyHints;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+import org.springframework.aot.hint.TypeReference;
+import org.springframework.aot.hint.support.RuntimeHintsUtils;
+import org.springframework.core.DecoratingProxy;
+import org.springframework.lang.Nullable;
+
+/**
+ * {@link RuntimeHintsRegistrar} for spring-rabbit.
+ *
+ * @author Gary Russell
+ * @since 3.0
+ *
+ */
+public class RabbitRuntimeHintsRegistrar implements RuntimeHintsRegistrar {
+
+	@Override
+	public void registerHints(RuntimeHints hints, @Nullable	ClassLoader classLoader) {
+		RuntimeHintsUtils.registerAnnotation(hints, RabbitListener.class);
+		ProxyHints proxyHints = hints.proxies();
+		proxyHints.registerJdkProxy(ChannelProxy.class);
+		proxyHints.registerJdkProxy(ChannelProxy.class, PublisherCallbackChannel.class);
+		proxyHints.registerJdkProxy(builder ->
+				builder.proxiedInterfaces(TypeReference.of(
+						"org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer$ContainerDelegate"))
+						.proxiedInterfaces(SpringProxy.class, Advised.class, DecoratingProxy.class));
+	}
+
+}
diff --git a/spring-rabbit/src/main/java/org/springframework/amqp/rabbit/aot/package-info.java b/spring-rabbit/src/main/java/org/springframework/amqp/rabbit/aot/package-info.java
new file mode 100644
index 0000000000..7cf34f813e
--- /dev/null
+++ b/spring-rabbit/src/main/java/org/springframework/amqp/rabbit/aot/package-info.java
@@ -0,0 +1,6 @@
+/**
+ * Provides classes to support Spring AOT.
+ */
+@org.springframework.lang.NonNullApi
+@org.springframework.lang.NonNullFields
+package org.springframework.amqp.rabbit.aot;
diff --git a/spring-rabbit/src/main/resources/META-INF/spring/aot.factories b/spring-rabbit/src/main/resources/META-INF/spring/aot.factories
new file mode 100644
index 0000000000..77cfb34d6c
--- /dev/null
+++ b/spring-rabbit/src/main/resources/META-INF/spring/aot.factories
@@ -0,0 +1 @@
+org.springframework.aot.hint.RuntimeHintsRegistrar=org.springframework.amqp.rabbit.aot.RabbitRuntimeHintsRegistrar