ResourceLocator rootLocator;
Genome genome;
public FeatureDirSource(ResourceLocator locator, Genome genome) throws IOException {
this.genome = genome;
featureCache = new LRUCache(3);
rootLocator = locator;
setRootDir(locator.getPath());
fileMap = new Properties();
InputStream propStream = ParsingUtils.openInputStreamGZ(locator);