Exemple #1
0
  private static void addFolder(FileSystem fs, Path p, JsonArray succeeded, JsonArray failed) {
    try {
      if (fs == null) return;
      for (FileStatus file : fs.listStatus(p)) {
        Path pfs = file.getPath();
        if (file.isDir()) {
          addFolder(fs, pfs, succeeded, failed);
        } else {
          Key k = Key.make(pfs.toString());
          long size = file.getLen();
          Value val = null;
          if (pfs.getName().endsWith(Extensions.JSON)) {
            JsonParser parser = new JsonParser();
            JsonObject json = parser.parse(new InputStreamReader(fs.open(pfs))).getAsJsonObject();
            JsonElement v = json.get(Constants.VERSION);
            if (v == null) throw new InvalidDataException("Missing version");
            JsonElement type = json.get(Constants.TYPE);
            if (type == null) throw new InvalidDataException("Missing type");
            Class c = Class.forName(type.getAsString());
            Model model = (Model) c.newInstance();
            model.fromJson(json);
          } else if (pfs.getName().endsWith(Extensions.HEX)) { // Hex file?
            FSDataInputStream s = fs.open(pfs);
            int sz = (int) Math.min(1L << 20, size); // Read up to the 1st meg
            byte[] mem = MemoryManager.malloc1(sz);
            s.readFully(mem);
            // Convert to a ValueArray (hope it fits in 1Meg!)
            ValueArray ary = new ValueArray(k, 0).read(new AutoBuffer(mem));
            val = new Value(k, ary, Value.HDFS);
          } else if (size >= 2 * ValueArray.CHUNK_SZ) {
            val =
                new Value(
                    k,
                    new ValueArray(k, size),
                    Value.HDFS); // ValueArray byte wrapper over a large file
          } else {
            val = new Value(k, (int) size, Value.HDFS); // Plain Value
          }
          val.setdsk();
          DKV.put(k, val);

          JsonObject o = new JsonObject();
          o.addProperty(Constants.KEY, k.toString());
          o.addProperty(Constants.FILE, pfs.toString());
          o.addProperty(Constants.VALUE_SIZE, file.getLen());
          succeeded.add(o);
        }
      }
    } catch (Exception e) {
      Log.err(e);
      JsonObject o = new JsonObject();
      o.addProperty(Constants.FILE, p.toString());
      o.addProperty(Constants.ERROR, e.getMessage());
      failed.add(o);
    }
  }