Package org.springframework.web.servlet.mvc.method.annotation

Class HttpEntityMethodProcessor

java.lang.Object

org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodArgumentResolver

org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor

org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor

All Implemented Interfaces:

org.springframework.web.method.support.HandlerMethodArgumentResolver, org.springframework.web.method.support.HandlerMethodReturnValueHandler

public class HttpEntityMethodProcessor
extends AbstractMessageConverterMethodProcessor

Resolves HttpEntity and RequestEntity method argument values, as well as return values of type HttpEntity, ResponseEntity, ErrorResponse and ProblemDetail.

An HttpEntity return type has a specific purpose. Therefore, this handler should be configured ahead of handlers that support any return value type annotated with @ModelAttribute or @ResponseBody to ensure they don't take over.

Since:

3.1

Author:

Arjen Poutsma, Rossen Stoyanchev, Brian Clozel, Sam Brannen

Field Summary

Fields inherited from class org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodArgumentResolver

logger, messageConverters

Constructor Summary

Constructors

Constructor	Description
HttpEntityMethodProcessor(List<org.springframework.http.converter.HttpMessageConverter<?>> converters)	Basic constructor with converters only.
HttpEntityMethodProcessor(List<org.springframework.http.converter.HttpMessageConverter<?>> converters, List<Object> requestResponseBodyAdvice)	Complete constructor for resolving HttpEntity method arguments.
HttpEntityMethodProcessor(List<org.springframework.http.converter.HttpMessageConverter<?>> converters, org.springframework.web.accept.ContentNegotiationManager manager)	Basic constructor with converters and ContentNegotiationManager.
HttpEntityMethodProcessor(List<org.springframework.http.converter.HttpMessageConverter<?>> converters, org.springframework.web.accept.ContentNegotiationManager manager, List<Object> requestResponseBodyAdvice)	Complete constructor for resolving HttpEntity and handling ResponseEntity.

Method Summary

Modifier and Type	Method	Description
protected Class<?>	getReturnValueType(Object returnValue, org.springframework.core.MethodParameter returnType)	Return the type of the value to be written to the response.
void	handleReturnValue(Object returnValue, org.springframework.core.MethodParameter returnType, org.springframework.web.method.support.ModelAndViewContainer mavContainer, org.springframework.web.context.request.NativeWebRequest webRequest)
Object	resolveArgument(org.springframework.core.MethodParameter parameter, org.springframework.web.method.support.ModelAndViewContainer mavContainer, org.springframework.web.context.request.NativeWebRequest webRequest, org.springframework.web.bind.support.WebDataBinderFactory binderFactory)
boolean	supportsParameter(org.springframework.core.MethodParameter parameter)
boolean	supportsReturnType(org.springframework.core.MethodParameter returnType)

Methods inherited from class org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor

createOutputMessage, getProducibleMediaTypes, getProducibleMediaTypes, isResourceType, writeWithMessageConverters, writeWithMessageConverters

Methods inherited from class org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodArgumentResolver

adaptArgumentIfNecessary, createInputMessage, getSupportedMediaTypes, isBindExceptionRequired, readWithMessageConverters, readWithMessageConverters, validateIfApplicable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

HttpEntityMethodProcessor

public HttpEntityMethodProcessor(List<org.springframework.http.converter.HttpMessageConverter<?>> converters)

Basic constructor with converters only. Suitable for resolving HttpEntity. For handling ResponseEntity consider also providing a ContentNegotiationManager.

HttpEntityMethodProcessor

public HttpEntityMethodProcessor(List<org.springframework.http.converter.HttpMessageConverter<?>> converters,
 org.springframework.web.accept.ContentNegotiationManager manager)

Basic constructor with converters and ContentNegotiationManager. Suitable for resolving HttpEntity and handling ResponseEntity without Request~ or ResponseBodyAdvice.

HttpEntityMethodProcessor

public HttpEntityMethodProcessor(List<org.springframework.http.converter.HttpMessageConverter<?>> converters,
 List<Object> requestResponseBodyAdvice)

Complete constructor for resolving HttpEntity method arguments. For handling ResponseEntity consider also providing a ContentNegotiationManager.

Since:

4.2

HttpEntityMethodProcessor

public HttpEntityMethodProcessor(List<org.springframework.http.converter.HttpMessageConverter<?>> converters,
 @Nullable
 org.springframework.web.accept.ContentNegotiationManager manager,
 List<Object> requestResponseBodyAdvice)

Complete constructor for resolving HttpEntity and handling ResponseEntity.

Method Details

supportsParameter

public boolean supportsParameter(org.springframework.core.MethodParameter parameter)

supportsReturnType

public boolean supportsReturnType(org.springframework.core.MethodParameter returnType)

resolveArgument

@Nullable
public Object resolveArgument(org.springframework.core.MethodParameter parameter,
 @Nullable
 org.springframework.web.method.support.ModelAndViewContainer mavContainer,
 org.springframework.web.context.request.NativeWebRequest webRequest,
 @Nullable
 org.springframework.web.bind.support.WebDataBinderFactory binderFactory)
                       throws IOException,
org.springframework.web.HttpMediaTypeNotSupportedException

Throws:

IOException

org.springframework.web.HttpMediaTypeNotSupportedException

handleReturnValue

public void handleReturnValue(@Nullable
 Object returnValue,
 org.springframework.core.MethodParameter returnType,
 org.springframework.web.method.support.ModelAndViewContainer mavContainer,
 org.springframework.web.context.request.NativeWebRequest webRequest)
                       throws Exception

Throws:

Exception

getReturnValueType

protected Class<?> getReturnValueType(@Nullable
 Object returnValue,
 org.springframework.core.MethodParameter returnType)

Description copied from class: AbstractMessageConverterMethodProcessor

Return the type of the value to be written to the response. Typically this is a simple check via getClass on the value but if the value is null, then the return type needs to be examined possibly including generic type determination (e.g. ResponseEntity<T>).

Overrides:

getReturnValueType in class AbstractMessageConverterMethodProcessor