import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.function.Consumer;

public class NonHierarchicalFileWatcherUpdater extends AbstractFileWatcherUpdater {
    private static final Logger LOGGER = LoggerFactory.getLogger(NonHierarchicalFileWatcherUpdater.class);

    private final FileWatcher fileWatcher;
    private final Multiset<String> watchedDirectories = HashMultiset.create();

    }

    @Override
    protected FileWatcherUpdater createFileWatcherUpdater(LinuxFileWatcher watcher, FileWatcherProbeRegistry probeRegistry, WatchableHierarchies watchableHierarchies) {
        return new NonHierarchicalFileWatcherUpdater(watcher, probeRegistry, watchableHierarchies, new LinuxMovedDirectoryHandler(watcher, watchableHierarchies));
    }

class NonHierarchicalFileWatcherUpdaterTest extends AbstractFileWatcherUpdaterTest {

    @Override
    FileWatcherUpdater createUpdater(FileWatcher watcher, WatchableHierarchies watchableHierarchies) {
        new NonHierarchicalFileWatcherUpdater(watcher, probeRegistry, watchableHierarchies, movedWatchedDirectoriesSupplier)
    }

    @Override
    int getIfNonHierarchical() { 1 }

    def "only watches directories in hierarchies to watch"() {

 *     hierarchies, but need to individually watch each directory and its immediate children.
 *     See {@link org.gradle.internal.watch.registry.impl.NonHierarchicalFileWatcherUpdater}.</dd>
 *
 *     <dt>probed hierarchies</dt>
 *     <dd>The list of file system hierarchies that we've activated a file system probe for.