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Polishing and minor refactoring

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See gh-24635
This commit is contained in:
Rossen Stoyanchev
2020-03-04 18:59:18 +00:00
parent e7df445e37
commit d3da7a50ec
4 changed files with 81 additions and 74 deletions
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11
spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/HttpEntityMethodProcessor.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2019 the original author or authors.
* Copyright 2002-2020 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.
@@ -21,10 +21,8 @@ import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Collections;
import java.util.EnumSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@@ -70,8 +68,6 @@ import org.springframework.web.servlet.support.RequestContextUtils;
*/
public class HttpEntityMethodProcessor extends AbstractMessageConverterMethodProcessor {
private static final Set<HttpMethod> SAFE_METHODS = EnumSet.of(HttpMethod.GET, HttpMethod.HEAD);
/**
* Basic constructor with converters only. Suitable for resolving
* {@code HttpEntity}. For handling {@code ResponseEntity} consider also
@@ -205,12 +201,11 @@ public class HttpEntityMethodProcessor extends AbstractMessageConverterMethodPro
int returnStatus = ((ResponseEntity<?>) responseEntity).getStatusCodeValue();
outputMessage.getServletResponse().setStatus(returnStatus);
if (returnStatus == 200) {
if (SAFE_METHODS.contains(inputMessage.getMethod())
HttpMethod method = inputMessage.getMethod();
if ((HttpMethod.GET.equals(method) || HttpMethod.HEAD.equals(method))
&& isResourceNotModified(inputMessage, outputMessage)) {
// Ensure headers are flushed, no body should be written.
outputMessage.flush();
ShallowEtagHeaderFilter.disableContentCaching(inputMessage.getServletRequest());
// Skip call to converters, as they may update the body.
return;
}
}