org.springframework.web.accept

Class MappingMediaTypeFileExtensionResolver

java.lang.Object

org.springframework.web.accept.MappingMediaTypeFileExtensionResolver

All Implemented Interfaces:

MediaTypeFileExtensionResolver

Direct Known Subclasses:

AbstractMappingContentNegotiationStrategy

public class MappingMediaTypeFileExtensionResolver
extends Object
implements MediaTypeFileExtensionResolver

An implementation of MediaTypeFileExtensionResolver that maintains lookups between file extensions and MediaTypes in both directions.

Initially created with a map of file extensions and media types. Subsequently subclasses can use addMapping(java.lang.String, org.springframework.http.MediaType) to add more mappings.

Since:

3.2

Author:

Rossen Stoyanchev

Constructor Summary

Constructors

Constructor and Description
MappingMediaTypeFileExtensionResolver(Map<String,MediaType> mediaTypes) Create an instance with the given map of file extensions and media types.

Method Summary

Modifier and Type	Method and Description
protected void	addMapping(String extension, MediaType mediaType) Map an extension to a MediaType.
List<String>	getAllFileExtensions() Return all registered file extensions.
protected List<MediaType>	getAllMediaTypes()
Map<String,MediaType>	getMediaTypes()
protected MediaType	lookupMediaType(String extension) Use this method for a reverse lookup from extension to MediaType.
List<String>	resolveFileExtensions(MediaType mediaType) Resolve the given media type to a list of path extensions.

Methods inherited from class java.lang.Object

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

Constructor Detail

MappingMediaTypeFileExtensionResolver

public MappingMediaTypeFileExtensionResolver(Map<String,MediaType> mediaTypes)

Create an instance with the given map of file extensions and media types.

Method Detail

getMediaTypes

public Map<String,MediaType> getMediaTypes()

getAllMediaTypes

protected List<MediaType> getAllMediaTypes()

addMapping

protected void addMapping(String extension,
                          MediaType mediaType)

Map an extension to a MediaType. Ignore if extension already mapped.

resolveFileExtensions

public List<String> resolveFileExtensions(MediaType mediaType)

Description copied from interface: MediaTypeFileExtensionResolver

Resolve the given media type to a list of path extensions.

Specified by:

resolveFileExtensions in interface MediaTypeFileExtensionResolver

Parameters:

mediaType - the media type to resolve

Returns:

a list of extensions or an empty list (never null)

getAllFileExtensions

public List<String> getAllFileExtensions()

Description copied from interface: MediaTypeFileExtensionResolver

Return all registered file extensions.

Specified by:

getAllFileExtensions in interface MediaTypeFileExtensionResolver

Returns:

a list of extensions or an empty list (never null)

lookupMediaType

protected MediaType lookupMediaType(String extension)

Use this method for a reverse lookup from extension to MediaType.

Returns:

a MediaType for the key, or null if none found