private static void updateUnion()

in src/main/java/org/apache/datasketches/pig/theta/DataToSketch.java [328:374]
45 lines of code
12 McCabe index (conditional complexity)

  private static void updateUnion(final DataBag bag, final Union union) {
    //Bag is not empty. process each innerTuple in the bag
    for (Tuple innerTuple : bag) {
      final Object f0 = extractFieldAtIndex(innerTuple, 0); //consider only field 0
      if (f0 == null) {
        continue;
      }
      final Byte type = extractTypeAtIndex(innerTuple, 0);
      if (type == null) {
        continue;
      }

      switch (type) {
        case DataType.NULL:
          break;
        case DataType.BYTE:
          union.update((byte) f0);
          break;
        case DataType.INTEGER:
          union.update((int) f0);
          break;
        case DataType.LONG:
          union.update((long) f0);
          break;
        case DataType.FLOAT:
          union.update((float) f0);
          break;
        case DataType.DOUBLE:
          union.update((double) f0);
          break;
        case DataType.BYTEARRAY: {
          final DataByteArray dba = (DataByteArray) f0;
          union.update(dba.get()); //checks null, empty
          break;
        }
        case DataType.CHARARRAY: {
          union.update(f0.toString()); //checks null, empty
          break;
        }
        default: // types not handled
          throw new IllegalArgumentException("Field 0 of innerTuple must be one of "
              + "NULL, BYTE, INTEGER, LONG, FLOAT, DOUBLE, BYTEARRAY or CHARARRAY. "
              + "Given Type = " + DataType.findTypeName(type)
              + ", Object = " + f0.toString());
      } //End switch
    } //End for
  }