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fix panic when logger or dialer is not set in canal config #743

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Merged
merged 1 commit into from
Nov 28, 2022
Merged

fix panic when logger or dialer is not set in canal config #743

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10 changes: 10 additions & 0 deletions canal/canal.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import (
"context"
"fmt"
"io"
"net"
"os"
"regexp"
"strconv"
Expand All @@ -19,6 +20,7 @@ import (
"github.com/go-mysql-org/go-mysql/schema"
"github.com/pingcap/errors"
"github.com/pingcap/parser"
"github.com/siddontang/go-log/log"
)

// Canal can sync your MySQL data into everywhere, like Elasticsearch, Redis, etc...
Expand Down Expand Up @@ -60,6 +62,14 @@ var ErrExcludedTable = errors.New("excluded table meta")

func NewCanal(cfg *Config) (*Canal, error) {
c := new(Canal)
if cfg.Logger == nil {
streamHandler, _ := log.NewStreamHandler(os.Stdout)
cfg.Logger = log.NewDefault(streamHandler)
}
if cfg.Dialer == nil {
dialer := &net.Dialer{}
cfg.Dialer = dialer.DialContext
}
c.cfg = cfg

c.ctx, c.cancel = context.WithCancel(context.Background())
Expand Down