public static String readIntString(DataInputStream input) throws IOException {
    return readIntString(input, StandardCharsets.UTF_8);
  }
Reads a String whose length is an int from the given input stream
@param input The input stream from which to read the String from
@return The String read from the stream
@throws IOException
ambry-utils/src/main/java/com/github/ambry/utils/Utils.java