EventHandlerV2 support handle event with replication.EventHeader

[BLAZZ]

add EventHandlerV2 to get timestamp from event, so that canal can show the how much time delay when process like

func (s *handler) OnXID(header *replication.EventHeader, nextPos mysql.Position) error {
	s.queue <- model.Position{
		Name:      nextPos.Name,
		Pos:       nextPos.Pos,
		Timestamp: header.Timestamp,
		Force:     false,
	}
	return nil
}

it can show on UI like
binlog file: mysql-bin.000102
binlog position: 1142900
binlog timestamp: 2022-11-25 15:54:07 (1669362847)
tiem delay: 2 sec

[atercattus]

Maybe we should change an EventHandler and increment semver as a major update?

[BLAZZ]

Maybe we should change an EventHandler and increment semver as a major update?

change EventHandlerV2 name to another like EventHandlerWithHeader or change the method in EventHandler ?

[lance6716]

Maybe we should change an EventHandler and increment semver as a major update?

Oh i forget that for major version updates we can break compatibility. I agree with this.

Maybe we should change an EventHandler and increment semver as a major update?

change EventHandlerV2 name to another like EventHandlerWithHeader or change the method in EventHandler ?

It means we can change the API interface while keeping the old name EventHandler.

But because this chance is rare, we might ask other developers what they want to change and do them at once

[lance6716]

sorry for my previous comments, now I think we can change the old EventHandler to this interface (will review more carefully later)

[lance6716]

don't forget this comment @BLAZZ

[BLAZZ]

I have changed EventHandlerV2 to EventHandler

[lance6716]

please fix CI, some test files need to be updated