Пример #1
0
func replyError(err error) error {
	if mysql.ErrorEqual(err, mysql.ErrBadConn) {
		return sqldriver.ErrBadConn
	} else {
		return errors.Trace(err)
	}
}
Пример #2
0
func (c *Canal) travelRowsEventHandler(e *RowsEvent) error {
	c.rsLock.Lock()
	defer c.rsLock.Unlock()

	var err error
	for _, h := range c.rsHandlers {
		if err = h.Do(e); err != nil && !mysql.ErrorEqual(err, ErrHandleInterrupted) {
			log.Errorf("handle %v err: %v", h, err)
		} else if mysql.ErrorEqual(err, ErrHandleInterrupted) {
			log.Errorf("handle %v err, interrupted", h)
			return ErrHandleInterrupted
		}

	}
	return nil
}
Пример #3
0
// Parse the dump data with Dumper generate.
// It can not parse all the data formats with mysqldump outputs
func Parse(r io.Reader, h ParseHandler) error {
	rb := bufio.NewReaderSize(r, 1024*16)

	var db string
	var binlogParsed bool

	for {
		line, err := rb.ReadString('\n')
		if err != nil && err != io.EOF {
			return errors.Trace(err)
		} else if mysql.ErrorEqual(err, io.EOF) {
			break
		}

		line = line[0 : len(line)-1]

		if !binlogParsed {
			if m := binlogExp.FindAllStringSubmatch(line, -1); len(m) == 1 {
				name := m[0][1]
				pos, err := strconv.ParseUint(m[0][2], 10, 64)
				if err != nil {
					return errors.Errorf("parse binlog %v err, invalid number", line)
				}

				if err = h.BinLog(name, pos); err != nil && err != ErrSkip {
					return errors.Trace(err)
				}

				binlogParsed = true
			}
		}

		if m := useExp.FindAllStringSubmatch(line, -1); len(m) == 1 {
			db = m[0][1]
		}

		if m := valuesExp.FindAllStringSubmatch(line, -1); len(m) == 1 {
			table := m[0][1]

			values, err := parseValues(m[0][2])
			if err != nil {
				return errors.Errorf("parse values %v err", line)
			}

			if err = h.Data(db, table, values); err != nil && err != ErrSkip {
				return errors.Trace(err)
			}
		}
	}

	return nil
}