}

        public DefaultExternalResourceFileStore create(ArtifactCacheMetadata artifactCacheMetadata) {
            return new DefaultExternalResourceFileStore(
                artifactCacheMetadata.getExternalResourcesStoreDirectory(),
                temporaryFileProvider,
                fileAccessTimeJournal,
                checksumService
            );
        }
    }

     */
    File getFileStoreDirectory();

    /**
     * Returns the root directory for the external resources file store.
     *
     * @return File store location
     */
    File getExternalResourcesStoreDirectory();

    /**
     * Returns the root directory for the meta-data file store.
     *
     * @return Metadata store location
     */
    File getMetaDataStoreDirectory();

        return cacheDir;
    }

    @Override
    public File getFileStoreDirectory() {
        return createCacheRelativeDir(CacheLayout.FILE_STORE);
    }

    @Override
    public File getExternalResourcesStoreDirectory() {
        return createCacheRelativeDir(CacheLayout.RESOURCES);
    }

    @Override
    public File getMetaDataStoreDirectory() {

    def metaDataDir = cacheDir.createDir(CacheLayout.META_DATA.key)
    def artifactCacheMetadata = Stub(ArtifactCacheMetadata) {
        getCacheDir() >> cacheDir
        getExternalResourcesStoreDirectory() >> resourcesDir
        getFileStoreDirectory() >> filesDir
        getMetaDataStoreDirectory() >> metaDataDir.file("descriptors")
    }
    def fileAccessTimeJournal = new ModificationTimeFileAccessTimeJournal()

                .add(UnusedVersionsCacheCleanup.create(CacheLayout.MODULES.getName(), CacheLayout.MODULES.getVersionMapping(), usedGradleVersions))
                .add(cacheMetaData.getExternalResourcesStoreDirectory(),
                    UnusedVersionsCacheCleanup.create(CacheLayout.RESOURCES.getName(), CacheLayout.RESOURCES.getVersionMapping(), usedGradleVersions),