public class CsvLoader {

    public static void loadCsv(World w, String pathToCsvFile, Integer startX, Integer startY, Integer startZ) {
        List<List<String>> blocks;
        try {
            blocks = loadBlockList(new FileReader(pathToCsvFile));
        } catch (FileNotFoundException e) {
            throw new RuntimeException(e);
        }
        for (List<String> blockRecord : blocks) {
            int xOffset = Integer.parseInt(blockRecord.get(0)), yOffset = Integer.parseInt(blockRecord.get(1)), zOffset = Integer.parseInt(blockRecord.get(2));
            Material blockType = Material.getMaterial(blockRecord.get(3));
            String blockDataSerialized = blockRecord.get(4);
            Block block = w.getBlockAt(startX + xOffset, startY + yOffset, startZ + zOffset);
            block.setType(blockType);
            block.setBlockData(Bukkit.createBlockData(blockDataSerialized));
        }
    }

    private static List<List<String>> loadBlockList(FileReader structureFileReader) {
        List<List<String>> blocks = new ArrayList<>();
        try (BufferedReader br = new BufferedReader(structureFileReader)) {
            String line;
            while ((line = br.readLine()) != null) {
                String[] values = line.split("\t");
                blocks.add(Arrays.asList(values));
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        return blocks;
    }
}