Rename beforeRead/Write() to resolveRead/WriteHints()

This commit also removes the ServerHttpResponse parameter, not
needed here since it is possible to override the write() method.

Issue: SPR-14557

spring-web/src/main/java/org/springframework/http/codec/AbstractServerHttpMessageReader.java

@@ -33,7 +33,7 @@ import org.springframework.http.server.reactive.ServerHttpResponse;
 /**
  * {@link HttpMessageReader} wrapper that implements {@link ServerHttpMessageReader} in order
  * to allow providing hints to the nested {@code reader} or setting the response status for
- * example, by implementing {@link #beforeRead(ResolvableType, ResolvableType, ServerHttpRequest, ServerHttpResponse)}.
+ * example, by implementing {@link #resolveReadHints(ResolvableType, ResolvableType, ServerHttpRequest)}.
  *
  * @author Sebastien Deleuze
  * @since 5.0
@@ -72,7 +72,7 @@ public abstract class AbstractServerHttpMessageReader<T> implements ServerHttpMe
 			ServerHttpRequest request, ServerHttpResponse response, Map<String, Object> hints) {
 
 		Map<String, Object> mergedHints = new HashMap<>(hints);
-		mergedHints.putAll(beforeRead(streamType, elementType, request, response));
+		mergedHints.putAll(resolveReadHints(streamType, elementType, request));
 
 		return (this.reader instanceof ServerHttpMessageReader ?
 				((ServerHttpMessageReader<T>)this.reader).read(streamType, elementType, request, response, mergedHints) :
@@ -84,7 +84,7 @@ public abstract class AbstractServerHttpMessageReader<T> implements ServerHttpMe
 			ServerHttpRequest request, ServerHttpResponse response, Map<String, Object> hints) {
 
 		Map<String, Object> mergedHints = new HashMap<>(hints);
-		mergedHints.putAll(beforeRead(streamType, elementType, request, response));
+		mergedHints.putAll(resolveReadHints(streamType, elementType, request));
 
 		return (this.reader instanceof ServerHttpMessageReader ?
 				((ServerHttpMessageReader<T>)this.reader).readMono(streamType, elementType, request, response, mergedHints) :
@@ -92,17 +92,16 @@ public abstract class AbstractServerHttpMessageReader<T> implements ServerHttpMe
 	}
 
 	/**
-	 * Invoked before reading the request by
+	 * Invoked before reading the request to resolve hints by
 	 * {@link #read(ResolvableType, ResolvableType, ServerHttpRequest, ServerHttpResponse, Map)}.
 	 *
 	 * @param streamType the original type used for the method return value. For annotation
 	 * based controllers, the {@link MethodParameter} is available via {@link ResolvableType#getSource()}.
 	 * @param elementType the stream element type to process
 	 * @param request the current HTTP request
-	 * @param response the current HTTP response
 	 * @return Additional information about how to write the body
 	 */
-	protected abstract Map<String, Object> beforeRead(ResolvableType streamType,
+	protected abstract Map<String, Object> resolveReadHints(ResolvableType streamType,
-			ResolvableType elementType, ServerHttpRequest request, ServerHttpResponse response);
+			ResolvableType elementType, ServerHttpRequest request);
 
 }

spring-web/src/main/java/org/springframework/http/codec/AbstractServerHttpMessageWriter.java

@@ -33,7 +33,7 @@ import org.springframework.http.server.reactive.ServerHttpResponse;
 /**
  * {@link HttpMessageWriter} wrapper that implements {@link ServerHttpMessageWriter} in order
  * to allow providing hints to the nested {@code writer} or setting the response status for
- * example, by implementing {@link #beforeWrite(ResolvableType, ResolvableType, MediaType, ServerHttpRequest, ServerHttpResponse)}.
+ * example, by implementing {@link #resolveWriteHints(ResolvableType, ResolvableType, MediaType, ServerHttpRequest)}.
  *
  * @author Sebastien Deleuze
  * @since 5.0
@@ -68,7 +68,7 @@ public abstract class AbstractServerHttpMessageWriter<T> implements ServerHttpMe
 			MediaType mediaType, ServerHttpRequest request, ServerHttpResponse response, Map<String, Object> hints) {
 
 		Map<String, Object> mergedHints = new HashMap<>(hints);
-		mergedHints.putAll(beforeWrite(streamType, elementType, mediaType, request, response));
+		mergedHints.putAll(resolveWriteHints(streamType, elementType, mediaType, request));
 		return (this.writer instanceof ServerHttpMessageWriter ?
 				((ServerHttpMessageWriter<T>)this.writer).write(inputStream, streamType,
 						elementType, mediaType, request, response, mergedHints) :
@@ -76,7 +76,7 @@ public abstract class AbstractServerHttpMessageWriter<T> implements ServerHttpMe
 	}
 
 	/**
-	 * Invoked before writing the response by
+	 * Invoked before writing the response to resolve hints by
 	 * {@link #write(Publisher, ResolvableType, ResolvableType, MediaType, ServerHttpRequest, ServerHttpResponse, Map)}.
 	 *
 	 * @param streamType the original type used for the method return value. For annotation
@@ -85,10 +85,9 @@ public abstract class AbstractServerHttpMessageWriter<T> implements ServerHttpMe
 	 * @param mediaType the content type to use when writing. May be {@code null} to
 	 * indicate that the default content type of the converter must be used.
 	 * @param request the current HTTP request
-	 * @param response the current HTTP response
 	 * @return Additional information about how to write the body
 	 */
-	protected abstract Map<String, Object> beforeWrite(ResolvableType streamType, ResolvableType elementType,
+	protected abstract Map<String, Object> resolveWriteHints(ResolvableType streamType, ResolvableType elementType,
-			MediaType mediaType, ServerHttpRequest request, ServerHttpResponse response);
+			MediaType mediaType, ServerHttpRequest request);
 
 }

spring-web/src/main/java/org/springframework/http/codec/Jackson2ServerHttpMessageReader.java

@@ -25,7 +25,6 @@ import org.springframework.core.MethodParameter;
 import org.springframework.core.ResolvableType;
 import org.springframework.http.codec.json.AbstractJackson2Codec;
 import org.springframework.http.server.reactive.ServerHttpRequest;
-import org.springframework.http.server.reactive.ServerHttpResponse;
 
 /**
  * {@link ServerHttpMessageReader} that resolves those annotation or request based Jackson 2 hints:
@@ -44,8 +43,8 @@ public class Jackson2ServerHttpMessageReader extends AbstractServerHttpMessageRe
 	}
 
 	@Override
-	protected Map<String, Object> beforeRead(ResolvableType streamType,
+	protected Map<String, Object> resolveReadHints(ResolvableType streamType,
-			ResolvableType elementType, ServerHttpRequest request, ServerHttpResponse response) {
+			ResolvableType elementType, ServerHttpRequest request) {
 
 		Object source = streamType.getSource();
 		MethodParameter parameter = (source instanceof MethodParameter ? (MethodParameter)source : null);

spring-web/src/main/java/org/springframework/http/codec/Jackson2ServerHttpMessageWriter.java

@@ -27,7 +27,6 @@ import org.springframework.core.ResolvableType;
 import org.springframework.http.MediaType;
 import org.springframework.http.codec.json.AbstractJackson2Codec;
 import org.springframework.http.server.reactive.ServerHttpRequest;
-import org.springframework.http.server.reactive.ServerHttpResponse;
 
 /**
  * {@link ServerHttpMessageWriter} that resolves those annotation or request based Jackson 2 hints:
@@ -46,8 +45,8 @@ public class Jackson2ServerHttpMessageWriter extends AbstractServerHttpMessageWr
 	}
 
 	@Override
-	protected Map<String, Object> beforeWrite(ResolvableType streamType, ResolvableType elementType,
+	protected Map<String, Object> resolveWriteHints(ResolvableType streamType,
-			MediaType mediaType, ServerHttpRequest request, ServerHttpResponse response) {
+			ResolvableType elementType, MediaType mediaType, ServerHttpRequest request) {
 
 		Map<String, Object> hints = new HashMap<>();
 		Object source = streamType.getSource();

spring-web/src/main/java/org/springframework/http/codec/ResourceHttpMessageWriter.java

@@ -75,12 +75,11 @@ public class ResourceHttpMessageWriter extends AbstractServerHttpMessageWriter<R
 	}
 
 	@Override
-	protected Map<String, Object> beforeWrite(ResolvableType streamType, ResolvableType elementType,
+	protected Map<String, Object> resolveWriteHints(ResolvableType streamType, ResolvableType elementType,
-			MediaType mediaType, ServerHttpRequest request, ServerHttpResponse response) {
+			MediaType mediaType, ServerHttpRequest request) {
 		try {
 			List<HttpRange> httpRanges = request.getHeaders().getRange();
 			if (!httpRanges.isEmpty()) {
-				response.setStatusCode(HttpStatus.PARTIAL_CONTENT);
 				return Collections.singletonMap(ResourceHttpMessageWriter.HTTP_RANGE_REQUEST_HINT, httpRanges);
 			}
 		}
@@ -111,8 +110,9 @@ public class ResourceHttpMessageWriter extends AbstractServerHttpMessageWriter<R
 			ServerHttpResponse response, Map<String, Object> hints) {
 
 		Map<String, Object> mergedHints = new HashMap<>(hints);
-		mergedHints.putAll(beforeWrite(streamType, elementType, mediaType, request, response));
+		mergedHints.putAll(resolveWriteHints(streamType, elementType, mediaType, request));
 		if (mergedHints.containsKey(HTTP_RANGE_REQUEST_HINT)) {
+			response.setStatusCode(HttpStatus.PARTIAL_CONTENT);
 			List<HttpRange> httpRanges = (List<HttpRange>) mergedHints.get(HTTP_RANGE_REQUEST_HINT);
 			if (httpRanges.size() > 1) {
 				final String boundary = MimeTypeUtils.generateMultipartBoundaryString();