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

Class AbstractMappingJacksonResponseBodyAdvice

java.lang.Object

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

All Implemented Interfaces:

ResponseBodyAdvice<Object>

Direct Known Subclasses:

JsonViewResponseBodyAdvice

public abstract class AbstractMappingJacksonResponseBodyAdvice
extends Object
implements ResponseBodyAdvice<Object>

A convenient base class for ResponseBodyAdvice implementations that customize the response before JSON serialization with AbstractJackson2HttpMessageConverter's concrete subclasses.

Since:

4.1

Author:

Rossen Stoyanchev, Sebastien Deleuze

Constructor Summary

Constructors

Constructor	Description
AbstractMappingJacksonResponseBodyAdvice()

Method Summary

Modifier and Type	Method	Description
final Object	beforeBodyWrite(Object body, MethodParameter returnType, MediaType contentType, Class<? extends HttpMessageConverter<?>> converterType, ServerHttpRequest request, ServerHttpResponse response)	Invoked after an HttpMessageConverter is selected and just before its write method is invoked.
protected abstract void	beforeBodyWriteInternal(MappingJacksonValue bodyContainer, MediaType contentType, MethodParameter returnType, ServerHttpRequest request, ServerHttpResponse response)	Invoked only if the converter type is MappingJackson2HttpMessageConverter.
protected MappingJacksonValue	getOrCreateContainer(Object body)	Wrap the body in a MappingJacksonValue value container (for providing additional serialization instructions) or simply cast it if already wrapped.
boolean	supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType)	Whether this component supports the given controller method return type and the selected HttpMessageConverter type.

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractMappingJacksonResponseBodyAdvice

public AbstractMappingJacksonResponseBodyAdvice()

Method Details

supports

public boolean supports(MethodParameter returnType,
 Class<? extends HttpMessageConverter<?>> converterType)

Description copied from interface: ResponseBodyAdvice

Whether this component supports the given controller method return type and the selected HttpMessageConverter type.

Specified by:

supports in interface ResponseBodyAdvice<Object>

Parameters:

returnType - the return type

converterType - the selected converter type

Returns:

true if ResponseBodyAdvice.beforeBodyWrite(T, org.springframework.core.MethodParameter, org.springframework.http.MediaType, java.lang.Class<? extends org.springframework.http.converter.HttpMessageConverter<?>>, org.springframework.http.server.ServerHttpRequest, org.springframework.http.server.ServerHttpResponse) should be invoked; false otherwise

beforeBodyWrite

@Nullable
public final Object beforeBodyWrite(@Nullable
 Object body,
 MethodParameter returnType,
 MediaType contentType,
 Class<? extends HttpMessageConverter<?>> converterType,
 ServerHttpRequest request,
 ServerHttpResponse response)

Description copied from interface: ResponseBodyAdvice

Invoked after an HttpMessageConverter is selected and just before its write method is invoked.

Specified by:

beforeBodyWrite in interface ResponseBodyAdvice<Object>

Parameters:

body - the body to be written

returnType - the return type of the controller method

contentType - the content type selected through content negotiation

converterType - the converter type selected to write to the response

request - the current request

response - the current response

Returns:

the body that was passed in or a modified (possibly new) instance

getOrCreateContainer

protected MappingJacksonValue getOrCreateContainer(Object body)

Wrap the body in a MappingJacksonValue value container (for providing additional serialization instructions) or simply cast it if already wrapped.

beforeBodyWriteInternal

protected abstract void beforeBodyWriteInternal(MappingJacksonValue bodyContainer,
 MediaType contentType,
 MethodParameter returnType,
 ServerHttpRequest request,
 ServerHttpResponse response)

Invoked only if the converter type is MappingJackson2HttpMessageConverter.