public static boolean isQuery()

in src/main/java/com/aliyun/odps/jdbc/OdpsStatement.java [353:375]

• 22 lines of code
• 6 McCabe index (conditional complexity)

  public static boolean isQuery(String sql) throws SQLException {
    BufferedReader reader = new BufferedReader(new StringReader(sql));
    try {
      String line;
      while ((line = reader.readLine()) != null) {
        if (line.matches("^\\s*(--|#).*")) { // skip the comment starting with '--' or '#'
          continue;
        }
        if (line.matches("^\\s*$")) { // skip the whitespace line
          continue;
        }
        // The first none-comment line start with "select"
        if (line.matches("(?i)^(\\s*)(SELECT).*$")) {
          return true;
        } else {
          break;
        }
      }
    } catch (IOException e) {
      throw new SQLException(e.getMessage(), e);
    }
    return false;
  }