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 java.lang.Object
implements MediaTypeFileExtensionResolver

An implementation of MediaTypeFileExtensionResolver that maintains a lookup from extension to MediaType.

Since:

3.2

Author:

Rossen Stoyanchev

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.List<java.lang.String>	allFileExtensions
private MultiValueMap<MediaType,java.lang.String>	fileExtensions
private java.util.concurrent.ConcurrentMap<java.lang.String,MediaType>	mediaTypes

Constructor Summary

Constructors

Constructor and Description
MappingMediaTypeFileExtensionResolver(java.util.Map<java.lang.String,MediaType> mediaTypes) Create an instance with the given mappings between extensions and media types.

Method Summary

Modifier and Type	Method and Description
protected void	addMapping(java.lang.String extension, MediaType mediaType) Map a MediaType to an extension or ignore if the extensions is already mapped.
java.util.List<java.lang.String>	getAllFileExtensions() Return all known file extensions.
protected java.util.List<MediaType>	getAllMediaTypes()
protected MediaType	lookupMediaType(java.lang.String extension) Return the MediaType mapped to the given extension.
java.util.List<java.lang.String>	resolveFileExtensions(MediaType mediaType) Find the file extensions mapped to the given MediaType.

Methods inherited from class java.lang.Object

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

Field Detail

mediaTypes

private final java.util.concurrent.ConcurrentMap<java.lang.String,MediaType> mediaTypes

fileExtensions

private final MultiValueMap<MediaType,java.lang.String> fileExtensions

allFileExtensions

private final java.util.List<java.lang.String> allFileExtensions

Constructor Detail

MappingMediaTypeFileExtensionResolver

public MappingMediaTypeFileExtensionResolver(java.util.Map<java.lang.String,MediaType> mediaTypes)

Create an instance with the given mappings between extensions and media types.

Throws:

java.lang.IllegalArgumentException - if a media type string cannot be parsed

Method Detail

resolveFileExtensions

public java.util.List<java.lang.String> resolveFileExtensions(MediaType mediaType)

Find the file extensions mapped to the given MediaType.

Specified by:

resolveFileExtensions in interface MediaTypeFileExtensionResolver

Parameters:

mediaType - the media type to resolve

Returns:

0 or more extensions, never null

getAllFileExtensions

public java.util.List<java.lang.String> getAllFileExtensions()

Description copied from interface: MediaTypeFileExtensionResolver

Return all known file extensions.

Specified by:

getAllFileExtensions in interface MediaTypeFileExtensionResolver

Returns:

a list of extensions or an empty list, never null

getAllMediaTypes

protected java.util.List<MediaType> getAllMediaTypes()

lookupMediaType

protected MediaType lookupMediaType(java.lang.String extension)

Return the MediaType mapped to the given extension.

Returns:

a MediaType for the key or null

addMapping

protected void addMapping(java.lang.String extension,
                          MediaType mediaType)

Map a MediaType to an extension or ignore if the extensions is already mapped.