org.springframework.web.servlet.resource

## Interface ResourceTransformerChain

-     public interface ResourceTransformerChain

  A contract for invoking a chain of `ResourceTransformers` where each resolver is given a reference to the chain allowing it to delegate when necessary.
  Since:
    4.1
  Author:
    Rossen Stoyanchev

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `ResourceResolverChain` | `getResolverChain()` Return the `ResourceResolverChain` that was used to resolve the `Resource` being transformed.
    `Resource` | `transform(HttpServletRequest request, Resource resource)` Transform the given resource.

- - ### Method Detail

    - #### getResolverChain

          ResourceResolverChain getResolverChain()

      Return the `ResourceResolverChain` that was used to resolve the `Resource` being transformed. This may be needed for resolving related resources, e.g. links to other resources.

    - #### transform

          Resource transform(HttpServletRequest request,
                             Resource resource)
                      throws IOException

      Transform the given resource.
      Parameters:
        `request` - the current request
        `resource` - the candidate resource to transform
      Returns:
        the transformed or the same resource, never `null`
      Throws:
        `IOException` - if transformation fails