*/
    fun <T : Any> useForStateLoad(stateType: StateType, action: (ConfigurationCacheStateFile) -> T): T

    /**
     * Writes some value to zero or more state files.
     */
    fun <T> useForStore(action: (ConfigurationCacheRepository.Layout) -> T): T

    /**
     * Creates a new [ValueStore] that can be used to load and store multiple values.
     */
    fun <T> createValueStore(
        stateType: StateType,

        return projectMetadata.loadOrCreateOriginalValue(identityPath, creator)
    }

    override fun finalizeCacheEntry() {
        if (problems.shouldDiscardEntry) {
            store.useForStore { layout ->
                layout.fileFor(StateType.Entry).delete()
            }
            cacheEntryRequiresCommit = false
        } else if (cacheEntryRequiresCommit) {

            return withExclusiveAccessToCache(baseDir) { cacheDir ->
                action(ReadableLayout(cacheDir))
            }
        }

        override fun <T> useForStore(action: (Layout) -> T): T =
            withExclusiveAccessToCache(baseDir) { cacheDir ->
                // TODO GlobalCache require(!cacheDir.isDirectory)
                Files.createDirectories(cacheDir.toPath())