Copy cookies and hints to ServerResponse builders

Closes gh-22351

spring-webflux/src/main/java/org/springframework/web/reactive/function/server/DefaultEntityResponseBuilder.java

@@ -157,6 +157,12 @@ class DefaultEntityResponseBuilder<T> implements EntityResponse.Builder<T> {
 		return this;
 	}
 
+	@Override
+	public EntityResponse.Builder<T> hints(Consumer<Map<String, Object>> hintsConsumer) {
+		hintsConsumer.accept(this.hints);
+		return this;
+	}
+
 	@Override
 	public EntityResponse.Builder<T> lastModified(ZonedDateTime lastModified) {
 		this.headers.setLastModified(lastModified);

spring-webflux/src/main/java/org/springframework/web/reactive/function/server/DefaultServerResponseBuilder.java

@@ -165,6 +165,12 @@ class DefaultServerResponseBuilder implements ServerResponse.BodyBuilder {
 		return this;
 	}
 
+	@Override
+	public ServerResponse.BodyBuilder hints(Consumer<Map<String, Object>> hintsConsumer) {
+		hintsConsumer.accept(this.hints);
+		return this;
+	}
+
 	@Override
 	public ServerResponse.BodyBuilder lastModified(ZonedDateTime lastModified) {
 		this.headers.setLastModified(lastModified);
@@ -222,8 +228,10 @@ class DefaultServerResponseBuilder implements ServerResponse.BodyBuilder {
 
 		return new DefaultEntityResponseBuilder<>(publisher,
 				BodyInserters.fromPublisher(publisher, elementClass))
-				.headers(this.headers)
 				.status(this.statusCode)
+				.headers(this.headers)
+				.cookies(cookies -> cookies.addAll(this.cookies))
+				.hints(hints -> hints.putAll(this.hints))
 				.build()
 				.map(entityResponse -> entityResponse);
 	}
@@ -237,8 +245,10 @@ class DefaultServerResponseBuilder implements ServerResponse.BodyBuilder {
 
 		return new DefaultEntityResponseBuilder<>(publisher,
 				BodyInserters.fromPublisher(publisher, typeReference))
-				.headers(this.headers)
 				.status(this.statusCode)
+				.headers(this.headers)
+				.cookies(cookies -> cookies.addAll(this.cookies))
+				.hints(hints -> hints.putAll(this.hints))
 				.build()
 				.map(entityResponse -> entityResponse);
 	}
@@ -251,8 +261,10 @@ class DefaultServerResponseBuilder implements ServerResponse.BodyBuilder {
 
 		return new DefaultEntityResponseBuilder<>(body,
 				BodyInserters.fromObject(body))
-				.headers(this.headers)
 				.status(this.statusCode)
+				.headers(this.headers)
+				.cookies(cookies -> cookies.addAll(this.cookies))
+				.hints(hints -> hints.putAll(this.hints))
 				.build()
 				.map(entityResponse -> entityResponse);
 	}
@@ -266,8 +278,9 @@ class DefaultServerResponseBuilder implements ServerResponse.BodyBuilder {
 	@Override
 	public Mono<ServerResponse> render(String name, Object... modelAttributes) {
 		return new DefaultRenderingResponseBuilder(name)
-				.headers(this.headers)
 				.status(this.statusCode)
+				.headers(this.headers)
+				.cookies(cookies -> cookies.addAll(this.cookies))
 				.modelAttributes(modelAttributes)
 				.build()
 				.map(renderingResponse -> renderingResponse);
@@ -276,8 +289,9 @@ class DefaultServerResponseBuilder implements ServerResponse.BodyBuilder {
 	@Override
 	public Mono<ServerResponse> render(String name, Map<String, ?> model) {
 		return new DefaultRenderingResponseBuilder(name)
-				.headers(this.headers)
 				.status(this.statusCode)
+				.headers(this.headers)
+				.cookies(cookies -> cookies.addAll(this.cookies))
 				.modelAttributes(model)
 				.build()
 				.map(renderingResponse -> renderingResponse);

spring-webflux/src/main/java/org/springframework/web/reactive/function/server/EntityResponse.java

 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -19,6 +19,7 @@ package org.springframework.web.reactive.function.server;
 import java.net.URI;
 import java.time.Instant;
 import java.time.ZonedDateTime;
+import java.util.Map;
 import java.util.Set;
 import java.util.function.Consumer;
 
@@ -262,6 +263,15 @@ public interface EntityResponse<T> extends ServerResponse {
 		 */
 		Builder<T> hint(String key, Object value);
 
+		/**
+		 * Manipulate serialization hint with the given consumer.
+		 *
+		 * @param hintsConsumer a function that consumes the hints
+		 * @return this builder
+		 * @since 5.1.6
+		 */
+		Builder<T> hints(Consumer<Map<String, Object>> hintsConsumer);
+
 		/**
 		 * Build the response.
 		 * @return the built response

spring-webflux/src/main/java/org/springframework/web/reactive/function/server/ServerResponse.java

 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -376,6 +376,15 @@ public interface ServerResponse {
 		 */
 		BodyBuilder hint(String key, Object value);
 
+		/**
+		 * Manipulate serialization hint with the given consumer.
+		 *
+		 * @param hintsConsumer a function that consumes the hints
+		 * @return this builder
+		 * @since 5.1.6
+		 */
+		BodyBuilder hints(Consumer<Map<String, Object>> hintsConsumer);
+
 		/**
 		 * Set the body of the response to the given asynchronous {@code Publisher} and return it.
 		 * This convenience method combines {@link #body(BodyInserter)} and

spring-webflux/src/test/java/org/springframework/web/reactive/function/server/DefaultServerResponseBuilderTests.java

@@ -41,6 +41,7 @@ import org.springframework.mock.http.server.reactive.test.MockServerHttpResponse
 import org.springframework.mock.web.test.server.MockServerWebExchange;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
+import org.springframework.web.reactive.function.BodyInserters;
 import org.springframework.web.reactive.result.view.ViewResolver;
 
 import static org.junit.Assert.*;
@@ -302,6 +303,23 @@ public class DefaultServerResponseBuilderTests {
 				.verify();
 	}
 
+	@Test
+	public void copyCookies() {
+		Mono<ServerResponse> serverResponse = ServerResponse.ok()
+				.cookie(ResponseCookie.from("foo", "bar").build())
+				.syncBody("body");
+
+		assertFalse(serverResponse.block().cookies().isEmpty());
+
+		serverResponse = ServerResponse.ok()
+				.cookie(ResponseCookie.from("foo", "bar").build())
+				.body(BodyInserters.fromObject("body"));
+
+
+		assertFalse(serverResponse.block().cookies().isEmpty());
+	}
+
+
 	@Test
 	public void build() {
 		ResponseCookie cookie = ResponseCookie.from("name", "value").build();