java.lang.Object
- org.springframework.web.reactive.resource.ResourceTransformerSupport

All Implemented Interfaces:
ResourceTransformer
Direct Known Subclasses:
AppCacheManifestTransformer, CssLinkResourceTransformer
```
public abstract class ResourceTransformerSupport
extends Object
implements ResourceTransformer
```
A base class for a ResourceTransformer with an optional helper method for resolving public links within a transformed resource.
Since:
5.0
Author:
Rossen Stoyanchev, Brian Clozel

Constructor Summary
Constructors
Constructor Description
ResourceTransformerSupport()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`ResourceUrlProvider`	`getResourceUrlProvider()`	Return the configured `ResourceUrlProvider`.
`protected reactor.core.publisher.Mono<String>`	`resolveUrlPath(String resourcePath, ServerWebExchange exchange, Resource resource, ResourceTransformerChain transformerChain)`	A transformer can use this method when a resource being transformed contains links to other resources.
`void`	`setResourceUrlProvider(ResourceUrlProvider resourceUrlProvider)`	Configure a `ResourceUrlProvider` to use when resolving the public URL of links in a transformed resource (e.g.
`protected String`	`toAbsolutePath(String path, ServerWebExchange exchange)`	Transform the given relative request path to an absolute path, taking the path of the given request as a point of reference.

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.reactive.resource.ResourceTransformer
transform

- Constructor Detail
  - ResourceTransformerSupport
```
public ResourceTransformerSupport()
```
- Method Detail
  - setResourceUrlProvider
```
public void setResourceUrlProvider(@Nullable
                                   ResourceUrlProvider resourceUrlProvider)
```
    Configure a ResourceUrlProvider to use when resolving the public URL of links in a transformed resource (e.g. import links in a CSS file). This is required only for links expressed as full paths and not for relative links.
    Parameters:
    resourceUrlProvider - the URL provider to use
  - getResourceUrlProvider
```
@Nullable
public ResourceUrlProvider getResourceUrlProvider()
```
    Return the configured ResourceUrlProvider.
  - resolveUrlPath
```
protected reactor.core.publisher.Mono<String> resolveUrlPath(String resourcePath,
                                                             ServerWebExchange exchange,
                                                             Resource resource,
                                                             ResourceTransformerChain transformerChain)
```
    A transformer can use this method when a resource being transformed contains links to other resources. Such links need to be replaced with the public facing link as determined by the resource resolver chain (e.g. the public URL may have a version inserted).
    Parameters:
    resourcePath - the path to a resource that needs to be re-written
    exchange - the current exchange
    resource - the resource being transformed
    transformerChain - the transformer chain
    Returns:
    the resolved URL or an empty Mono
  - toAbsolutePath
```
protected String toAbsolutePath(String path,
                                ServerWebExchange exchange)
```
    Transform the given relative request path to an absolute path, taking the path of the given request as a point of reference. The resulting path is also cleaned from sequences like "path/..".
    Parameters:
    path - the relative path to transform
    exchange - the current exchange
    Returns:
    the absolute request path for the given resource path

Class ResourceTransformerSupport

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface org.springframework.web.reactive.resource.ResourceTransformer

Constructor Detail

ResourceTransformerSupport

Method Detail

setResourceUrlProvider

getResourceUrlProvider

resolveUrlPath

toAbsolutePath