org.springframework.web.servlet.resource

Interface VersionStrategy

All Known Implementing Classes:

AbstractVersionStrategy, ContentBasedVersionStrategy, FixedVersionStrategy

public interface VersionStrategy

A strategy for handling version strings in request paths when resolving static resources with a VersionResourceResolver.

Since:

4.1

Author:

Brian Clozel

See Also:

VersionResourceResolver

Method Summary

Modifier and Type	Method and Description
String	addVersionToUrl(String baseUrl, List<? extends org.springframework.core.io.Resource> locations, ResourceResolverChain chain) Adds a version string to the given baseUrl.
String	deleteVersionFromPath(String requestPath, String candidateVersion) Deletes the given candidate version string from the given request path.
String	extractVersionFromPath(String requestPath) Extracts a version string from the request path.
boolean	resourceVersionMatches(org.springframework.core.io.Resource baseResource, String candidateVersion) Checks whether the given Resource matches the candidate version string.

Method Detail

extractVersionFromPath

String extractVersionFromPath(String requestPath)

Extracts a version string from the request path.

Parameters:

requestPath - the request path of the resource being resolved

Returns:

the version string or an empty string if none was found

deleteVersionFromPath

String deleteVersionFromPath(String requestPath,
                             String candidateVersion)

Deletes the given candidate version string from the given request path.

Parameters:

requestPath - the request path of the resource being resolved

candidateVersion - the candidate version string

Returns:

the modified request path, without the version string

resourceVersionMatches

boolean resourceVersionMatches(org.springframework.core.io.Resource baseResource,
                               String candidateVersion)

Checks whether the given Resource matches the candidate version string. Useful when the version string is managed on a per-resource basis.

Parameters:

baseResource - the resource to check against the given version

candidateVersion - the candidate version for the given resource

Returns:

true if the resource matches the version string, false otherwise

addVersionToUrl

String addVersionToUrl(String baseUrl,
                       List<? extends org.springframework.core.io.Resource> locations,
                       ResourceResolverChain chain)

Adds a version string to the given baseUrl.

Parameters:

baseUrl - the baseUrl of the requested resource

locations - the resource locations to resolve resources from

chain - the chain of resource resolvers

Returns:

the baseUrl updated with a version string