@FunctionalInterface public interface ProtocolResolver
Used as an SPI for DefaultResourceLoader, allowing for
 custom protocols to be handled without subclassing the loader
 implementation (or application context implementation).
DefaultResourceLoader.addProtocolResolver(org.springframework.core.io.ProtocolResolver)| Modifier and Type | Method and Description | 
|---|---|
| Resource | resolve(String location,
       ResourceLoader resourceLoader)Resolve the given location against the given resource loader
 if this implementation's protocol matches. | 
@Nullable Resource resolve(String location, ResourceLoader resourceLoader)
location - the user-specified resource locationresourceLoader - the associated resource loaderResource handle if the given location
 matches this resolver's protocol, or null otherwise