addDocument(indexName, client, num);

        ESSourceReader reader = new ESSourceReader(client, settings, indexName);
        reader.setScrollSize(1);
        reader.setLimitDocNumPercentage("1%");
        int count = 0;
        Set<String> valueSet = Collections.synchronizedSet(new HashSet<>());
        Map<String, Object> source;
        while ((source = reader.read()) != null) {

    @Inject
    private ModelLocator locator;

    @Inject
    private ModelReader reader;

    public DefaultModelProcessor setModelLocator(ModelLocator locator) {
        this.locator = locator;
        return this;
    }

    public DefaultModelProcessor setModelReader(ModelReader reader) {
        this.reader = reader;
        return this;
    }

    @Override

	}
}

var UnreadRuneErrorTests = []struct {
	name string
	f    func(*Reader)
}{
	{"Read", func(r *Reader) { r.Read([]byte{0}) }},
	{"ReadByte", func(r *Reader) { r.ReadByte() }},
	{"UnreadRune", func(r *Reader) { r.UnreadRune() }},
	{"Seek", func(r *Reader) { r.Seek(0, io.SeekCurrent) }},
	{"WriteTo", func(r *Reader) { r.WriteTo(&Buffer{}) }},
}

func TestUnreadRuneError(t *testing.T) {

            this.inputStream = inputStream;
            return this;
        }

        public XmlReaderRequestBuilder reader(Reader reader) {
            this.reader = reader;
            return this;
        }

        public XmlReaderRequestBuilder transformer(Transformer transformer) {
            this.transformer = transformer;
            return this;

    }

    /**
     * Reads an XML node from a reader.
     */
    @Nonnull
    public static XmlNode read(Reader reader) throws XMLStreamException {
        return read(reader, null);
    }

    /**
     * Reads an XML node from a reader.
     */
    @Nonnull
    public static XmlNode read(Reader reader, @Nullable InputLocationBuilder locationBuilder)

    /**
     *
     * @param reader a reader object.
     * @throws IOException IOException if any.
     * @throws XmlPullParserException XmlPullParserException if
     * any.
     * @return Model
     */
    public Model read(Reader reader) throws IOException, XmlPullParserException {
        return read(reader, true);
    } // -- Model read( Reader )

    protected Model read(InputStream is, boolean strict, InputSource source)

  TF_CheckpointReader* reader = new TF_CheckpointReader(filename, status);
  if (!status->status.ok()) {
    TF_DeleteCheckpointReader(reader);
    return nullptr;
  }
  const auto& m = reader->GetVariableToDataTypeMap();
  for (auto it = m.begin(); it != m.end(); ++it)
    reader->variable_list.push_back(it->first);
  std::sort(reader->variable_list.begin(), reader->variable_list.end());
  return reader;
}

		req.Trailer = nil
	}
	return &s3UnsignedChunkedReader{
		trailers: req.Trailer,
		reader:   bufio.NewReader(req.Body),
		buffer:   make([]byte, 64*1024),
	}, ErrNone
}

// Represents the overall state that is required for decoding a
// AWS Signature V4 chunked reader.
type s3UnsignedChunkedReader struct {
	reader   *bufio.Reader
	trailers http.Header

	buffer []byte
	offset int
	err    error
	debug  bool
}

    CharSequenceReader reader = new CharSequenceReader(string);
    assertTrue(reader.markSupported());

    assertThat(readFully(reader)).isEqualTo(string);
    assertFullyRead(reader);

    // reset and read again
    reader.reset();
    assertThat(readFully(reader)).isEqualTo(string);
    assertFullyRead(reader);

    // reset, skip, mark, then read the rest
    reader.reset();
    assertEquals(5, reader.skip(5));

func HardLimitReader(r io.Reader, n int64) io.Reader { return &HardLimitedReader{r, n} }

// A HardLimitedReader reads from R but limits the amount of
// data returned to just N bytes. Each call to Read
// updates N to reflect the new amount remaining.
// Read returns EOF when N <= 0 or when the underlying R returns EOF.
type HardLimitedReader struct {
	R io.Reader // underlying reader
	N int64     // max bytes remaining
}