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

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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

Class MappingMediaTypeFileExtensionResolver

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

MappingMediaTypeFileExtensionResolver

Method Detail

getMediaTypes

getAllMediaTypes

addMapping

resolveFileExtensions

getAllFileExtensions

lookupMediaType