github.com/pingcap/ticdc@v0.0.0-20220526033649-485a10ef2652/cdc/sink/syncpointStore.go (about)

     1  // Copyright 2020 PingCAP, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package sink
    15  
    16  import (
    17  	"context"
    18  	"net/url"
    19  	"strings"
    20  
    21  	"github.com/pingcap/ticdc/cdc/model"
    22  	cerror "github.com/pingcap/ticdc/pkg/errors"
    23  )
    24  
    25  // SyncpointStore is an abstraction for anything that a changefeed may emit into.
    26  type SyncpointStore interface {
    27  	// CreateSynctable create a table to record the syncpoints
    28  	CreateSynctable(ctx context.Context) error
    29  
    30  	// SinkSyncpoint record the syncpoint(a map with ts) in downstream db
    31  	SinkSyncpoint(ctx context.Context, id string, checkpointTs uint64) error
    32  
    33  	// Close closes the SyncpointSink
    34  	Close() error
    35  }
    36  
    37  // NewSyncpointStore creates a new Spyncpoint sink with the sink-uri
    38  func NewSyncpointStore(ctx context.Context, changefeedID model.ChangeFeedID, sinkURIStr string) (SyncpointStore, error) {
    39  	// parse sinkURI as a URI
    40  	sinkURI, err := url.Parse(sinkURIStr)
    41  	if err != nil {
    42  		return nil, cerror.WrapError(cerror.ErrSinkURIInvalid, err)
    43  	}
    44  	switch strings.ToLower(sinkURI.Scheme) {
    45  	case "mysql", "tidb", "mysql+ssl", "tidb+ssl":
    46  		return newMySQLSyncpointStore(ctx, changefeedID, sinkURI)
    47  	default:
    48  		return nil, cerror.ErrSinkURIInvalid.GenWithStack("the sink scheme (%s) is not supported", sinkURI.Scheme)
    49  	}
    50  }