org.springframework.web.accept

Class ParameterContentNegotiationStrategy

java.lang.Object

org.springframework.web.accept.MappingMediaTypeFileExtensionResolver

org.springframework.web.accept.AbstractMappingContentNegotiationStrategy

org.springframework.web.accept.ParameterContentNegotiationStrategy

All Implemented Interfaces:

ContentNegotiationStrategy, MediaTypeFileExtensionResolver

public class ParameterContentNegotiationStrategy
extends AbstractMappingContentNegotiationStrategy

A ContentNegotiationStrategy that uses a request parameter to determine what media types are requested. The default parameter name is format. Its value is used to look up the media type in the map given to the constructor.

Since:

3.2

Author:

Rossen Stoyanchev

Constructor Summary

Constructors

Constructor and Description
ParameterContentNegotiationStrategy(Map<String,MediaType> mediaTypes) Create an instance with the given extension-to-MediaType lookup.

Method Summary

Modifier and Type	Method and Description
protected String	getMediaTypeKey(NativeWebRequest webRequest) Sub-classes must extract the key to use to look up a media type.
protected void	handleMatch(String mediaTypeKey, MediaType mediaType) Invoked when a matching media type is found in the lookup map.
protected MediaType	handleNoMatch(NativeWebRequest request, String key) Invoked when no matching media type is found in the lookup map.
void	setParameterName(String parameterName) Set the parameter name that can be used to determine the requested media type.

Methods inherited from class org.springframework.web.accept.AbstractMappingContentNegotiationStrategy

resolveMediaTypeKey, resolveMediaTypes

Methods inherited from class org.springframework.web.accept.MappingMediaTypeFileExtensionResolver

addMapping, getAllFileExtensions, getAllMediaTypes, lookupMediaType, resolveFileExtensions

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.accept.MediaTypeFileExtensionResolver

getAllFileExtensions, resolveFileExtensions

Constructor Detail

ParameterContentNegotiationStrategy

public ParameterContentNegotiationStrategy(Map<String,MediaType> mediaTypes)

Create an instance with the given extension-to-MediaType lookup.

Throws:

IllegalArgumentException - if a media type string cannot be parsed

Method Detail

setParameterName

public void setParameterName(String parameterName)

Set the parameter name that can be used to determine the requested media type.

The default parameter name is format.

getMediaTypeKey

protected String getMediaTypeKey(NativeWebRequest webRequest)

Description copied from class: AbstractMappingContentNegotiationStrategy

Sub-classes must extract the key to use to look up a media type.

Specified by:

getMediaTypeKey in class AbstractMappingContentNegotiationStrategy

Returns:

the lookup key or null if the key cannot be derived

handleMatch

protected void handleMatch(String mediaTypeKey,
                           MediaType mediaType)

Description copied from class: AbstractMappingContentNegotiationStrategy

Invoked when a matching media type is found in the lookup map.

Overrides:

handleMatch in class AbstractMappingContentNegotiationStrategy

handleNoMatch

protected MediaType handleNoMatch(NativeWebRequest request,
                                  String key)
                           throws HttpMediaTypeNotAcceptableException

Description copied from class: AbstractMappingContentNegotiationStrategy

Invoked when no matching media type is found in the lookup map. Sub-classes can take further steps to determine the media type.

Overrides:

handleNoMatch in class AbstractMappingContentNegotiationStrategy

Throws:

HttpMediaTypeNotAcceptableException