From 248fe01b9a1834f23381bbf2bb05fbc310aa4d85 Mon Sep 17 00:00:00 2001
From: omercelikceng <omercelik.ceng@gmail.com>
Date: Mon, 18 Sep 2023 22:54:25 +0300
Subject: [PATCH] Cloud Stream Core RuntimeHints

 - Adding missing runtime hints for Stream Binding (InputBindingLifecycle and OutputBindingLifecycle)

Resolves spring-cloud#2793
---
 .../cloud/stream/aot/StreamRuntimeHints.java  | 45 +++++++++++++++++++
 .../resources/META-INF/spring/aot.factories   |  1 +
 2 files changed, 46 insertions(+)
 create mode 100644 core/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/aot/StreamRuntimeHints.java
 create mode 100644 core/spring-cloud-stream/src/main/resources/META-INF/spring/aot.factories

diff --git a/core/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/aot/StreamRuntimeHints.java b/core/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/aot/StreamRuntimeHints.java
new file mode 100644
index 000000000..83cf24f37
--- /dev/null
+++ b/core/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/aot/StreamRuntimeHints.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2023-2023 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.cloud.stream.aot;
+
+import java.util.stream.Stream;
+
+import org.springframework.aot.hint.MemberCategory;
+import org.springframework.aot.hint.ReflectionHints;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+import org.springframework.cloud.stream.binding.InputBindingLifecycle;
+import org.springframework.cloud.stream.binding.OutputBindingLifecycle;
+import org.springframework.lang.Nullable;
+
+/**
+ * {@link RuntimeHintsRegistrar} for the Core in Spring Cloud Stream.
+ *
+ * @author Omer Celik
+ *
+ */
+public class StreamRuntimeHints implements RuntimeHintsRegistrar {
+	@Override
+	public void registerHints(RuntimeHints hints, @Nullable ClassLoader classLoader) {
+		ReflectionHints reflectionHints = hints.reflection();
+		Stream.of(
+				InputBindingLifecycle.class,
+				OutputBindingLifecycle.class)
+			.forEach(type -> reflectionHints.registerType(type,
+				builder -> builder.withMembers(MemberCategory.DECLARED_FIELDS)));
+	}
+}
diff --git a/core/spring-cloud-stream/src/main/resources/META-INF/spring/aot.factories b/core/spring-cloud-stream/src/main/resources/META-INF/spring/aot.factories
new file mode 100644
index 000000000..d33153184
--- /dev/null
+++ b/core/spring-cloud-stream/src/main/resources/META-INF/spring/aot.factories
@@ -0,0 +1 @@
+org.springframework.aot.hint.RuntimeHintsRegistrar=org.springframework.cloud.stream.aot.StreamRuntimeHints