Package org.springframework.web.reactive.resource

Class CachingResourceTransformer

java.lang.Object

org.springframework.web.reactive.resource.CachingResourceTransformer

All Implemented Interfaces:

ResourceTransformer

public class CachingResourceTransformer
extends Object
implements ResourceTransformer

A ResourceTransformer that checks a Cache to see if a previously transformed resource exists in the cache and returns it if found, or otherwise delegates to the resolver chain and caches the result.

Since:

5.0

Author:

Rossen Stoyanchev

Constructor Summary

Constructors

Constructor	Description
CachingResourceTransformer(org.springframework.cache.Cache cache)
CachingResourceTransformer(org.springframework.cache.CacheManager cacheManager, String cacheName)

Method Summary

Modifier and Type	Method	Description
org.springframework.cache.Cache	getCache()	Return the configured Cache.
reactor.core.publisher.Mono<org.springframework.core.io.Resource>	transform(org.springframework.web.server.ServerWebExchange exchange, org.springframework.core.io.Resource resource, ResourceTransformerChain transformerChain)	Transform the given resource.

Methods inherited from class java.lang.Object

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

Constructor Details

CachingResourceTransformer

public CachingResourceTransformer(org.springframework.cache.Cache cache)

CachingResourceTransformer

public CachingResourceTransformer(org.springframework.cache.CacheManager cacheManager,
 String cacheName)

Method Details

getCache

public org.springframework.cache.Cache getCache()

Return the configured Cache.

transform

public reactor.core.publisher.Mono<org.springframework.core.io.Resource> transform(org.springframework.web.server.ServerWebExchange exchange,
 org.springframework.core.io.Resource resource,
 ResourceTransformerChain transformerChain)

Description copied from interface: ResourceTransformer

Transform the given resource.

Specified by:

transform in interface ResourceTransformer

Parameters:

exchange - the current exchange

resource - the resource to transform

transformerChain - the chain of remaining transformers to delegate to

Returns:

the transformed resource (never empty)