@Override
	Item parseIndexItem(Folder parent, String entry) {
		int index = entry.indexOf(INDEX_ITEM_SEPARATOR);
		if (index < 0) {
			return null;
		}
		String storageName = entry.substring(0, index);
		String name = entry.substring(index + 1);
		String fileId = null;
		index = name.indexOf(INDEX_ITEM_SEPARATOR);
		if (index > 0) {
			fileId = name.substring(index + 1);
			name = name.substring(0, index);
		}
		return new Item(parent, name, fileId, storageName);
	}
Construct existing indexed filesystem with an empty index.
This can be used to prepare for rebuilding the filesystem index.
@param rootPath
@throws IOException
Ghidra/Framework/FileSystem/src/main/java/ghidra/framework/store/local/IndexedV1LocalFileSystem.java