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

java.lang.Object
  org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodArgumentResolver

All Implemented Interfaces:

HandlerMethodArgumentResolver

Direct Known Subclasses:

AbstractMessageConverterMethodProcessor, RequestPartMethodArgumentResolver

public abstract class AbstractMessageConverterMethodArgumentResolver
extends Object
implements HandlerMethodArgumentResolver

A base class for resolving method argument values by reading from the body of a request with HttpMessageConverters.

Since:

3.1

Author:

Arjen Poutsma, Rossen Stoyanchev

Field Summary

protected List<MediaType>	allSupportedMediaTypes
protected Log	logger
protected List<HttpMessageConverter<?>>	messageConverters

Constructor Summary

AbstractMessageConverterMethodArgumentResolver(List<HttpMessageConverter<?>> messageConverters)

Method Summary

protected ServletServerHttpRequest	createInputMessage(NativeWebRequest webRequest) Creates a new HttpInputMessage from the given NativeWebRequest.
protected <T> Object	readWithMessageConverters(HttpInputMessage inputMessage, MethodParameter methodParam, Class<T> paramType) Creates the method argument value of the expected parameter type by reading from the given HttpInputMessage.
protected <T> Object	readWithMessageConverters(NativeWebRequest webRequest, MethodParameter methodParam, Class<T> paramType) Creates the method argument value of the expected parameter type by reading from the given request.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.web.method.support.HandlerMethodArgumentResolver

resolveArgument, supportsParameter

Field Detail

logger

protected final Log logger

messageConverters

protected final List<HttpMessageConverter<?>> messageConverters

allSupportedMediaTypes

protected final List<MediaType> allSupportedMediaTypes

Constructor Detail

AbstractMessageConverterMethodArgumentResolver

public AbstractMessageConverterMethodArgumentResolver(List<HttpMessageConverter<?>> messageConverters)

Method Detail

readWithMessageConverters

protected <T> Object readWithMessageConverters(NativeWebRequest webRequest,
                                               MethodParameter methodParam,
                                               Class<T> paramType)
                                    throws IOException,
                                           HttpMediaTypeNotSupportedException

Creates the method argument value of the expected parameter type by reading from the given request.

Type Parameters:

T - the expected type of the argument value to be created

Parameters:

webRequest - the current request

methodParam - the method argument

paramType - the type of the argument value to be created

Returns:

the created method argument value

Throws:

IOException - if the reading from the request fails

HttpMediaTypeNotSupportedException - if no suitable message converter is found

readWithMessageConverters

protected <T> Object readWithMessageConverters(HttpInputMessage inputMessage,
                                               MethodParameter methodParam,
                                               Class<T> paramType)
                                    throws IOException,
                                           HttpMediaTypeNotSupportedException

Creates the method argument value of the expected parameter type by reading from the given HttpInputMessage.

Type Parameters:

T - the expected type of the argument value to be created

Parameters:

inputMessage - the HTTP input message representing the current request

methodParam - the method argument

paramType - the type of the argument value to be created

Returns:

the created method argument value

Throws:

IOException - if the reading from the request fails

HttpMediaTypeNotSupportedException - if no suitable message converter is found

createInputMessage

protected ServletServerHttpRequest createInputMessage(NativeWebRequest webRequest)

Creates a new HttpInputMessage from the given NativeWebRequest.

Parameters:

webRequest - the web request to create an input message from

Returns:

the input message