org.springframework.web.servlet.resource

Class AbstractResourceResolver

java.lang.Object

org.springframework.web.servlet.resource.AbstractResourceResolver

All Implemented Interfaces:

ResourceResolver

Direct Known Subclasses:

CachingResourceResolver, GzipResourceResolver, PathResourceResolver, VersionResourceResolver, WebJarsResourceResolver

public abstract class AbstractResourceResolver
extends Object
implements ResourceResolver

Base class for ResourceResolver implementations. Provides consistent logging.

Since:

4.1

Author:

Rossen Stoyanchev

Field Summary

Fields

Modifier and Type	Field and Description
protected Log	logger

Constructor Summary

Constructors

Constructor and Description
AbstractResourceResolver()

Method Summary

Modifier and Type	Method and Description
Resource	resolveResource(HttpServletRequest request, String requestPath, List<? extends Resource> locations, ResourceResolverChain chain) Resolve the supplied request and request path to a Resource that exists under one of the given resource locations.
protected abstract Resource	resolveResourceInternal(HttpServletRequest request, String requestPath, List<? extends Resource> locations, ResourceResolverChain chain)
String	resolveUrlPath(String resourceUrlPath, List<? extends Resource> locations, ResourceResolverChain chain) Resolve the externally facing public URL path for clients to use to access the resource that is located at the given internal resource path.
protected abstract String	resolveUrlPathInternal(String resourceUrlPath, List<? extends Resource> locations, ResourceResolverChain chain)

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected final Log logger

Constructor Detail

AbstractResourceResolver

public AbstractResourceResolver()

Method Detail

resolveResource

public Resource resolveResource(HttpServletRequest request,
                                String requestPath,
                                List<? extends Resource> locations,
                                ResourceResolverChain chain)

Description copied from interface: ResourceResolver

Resolve the supplied request and request path to a Resource that exists under one of the given resource locations.

Specified by:

resolveResource in interface ResourceResolver

Parameters:

request - the current request

requestPath - the portion of the request path to use

locations - the locations to search in when looking up resources

chain - the chain of remaining resolvers to delegate to

Returns:

the resolved resource or null if unresolved

resolveUrlPath

public String resolveUrlPath(String resourceUrlPath,
                             List<? extends Resource> locations,
                             ResourceResolverChain chain)

Description copied from interface: ResourceResolver

Resolve the externally facing public URL path for clients to use to access the resource that is located at the given internal resource path.

This is useful when rendering URL links to clients.

Specified by:

resolveUrlPath in interface ResourceResolver

Parameters:

resourceUrlPath - the internal resource path

locations - the locations to search in when looking up resources

chain - the chain of resolvers to delegate to

Returns:

the resolved public URL path or null if unresolved

resolveResourceInternal

protected abstract Resource resolveResourceInternal(HttpServletRequest request,
                                                    String requestPath,
                                                    List<? extends Resource> locations,
                                                    ResourceResolverChain chain)

resolveUrlPathInternal

protected abstract String resolveUrlPathInternal(String resourceUrlPath,
                                                 List<? extends Resource> locations,
                                                 ResourceResolverChain chain)