vitess.io/vitess@v0.16.2/go/vt/wrangler/switcher_interface.go (about)

     1  /*
     2  Copyright 2020 The Vitess Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package wrangler
    18  
    19  import (
    20  	"context"
    21  	"time"
    22  
    23  	"vitess.io/vitess/go/vt/vtctl/workflow"
    24  
    25  	topodatapb "vitess.io/vitess/go/vt/proto/topodata"
    26  )
    27  
    28  type iswitcher interface {
    29  	lockKeyspace(ctx context.Context, keyspace, action string) (context.Context, func(*error), error)
    30  	cancelMigration(ctx context.Context, sm *workflow.StreamMigrator)
    31  	stopStreams(ctx context.Context, sm *workflow.StreamMigrator) ([]string, error)
    32  	stopSourceWrites(ctx context.Context) error
    33  	waitForCatchup(ctx context.Context, filteredReplicationWaitTime time.Duration) error
    34  	migrateStreams(ctx context.Context, sm *workflow.StreamMigrator) error
    35  	createReverseVReplication(ctx context.Context) error
    36  	createJournals(ctx context.Context, sourceWorkflows []string) error
    37  	allowTargetWrites(ctx context.Context) error
    38  	changeRouting(ctx context.Context) error
    39  	streamMigraterfinalize(ctx context.Context, ts *trafficSwitcher, workflows []string) error
    40  	startReverseVReplication(ctx context.Context) error
    41  	switchTableReads(ctx context.Context, cells []string, servedType []topodatapb.TabletType, direction workflow.TrafficSwitchDirection) error
    42  	switchShardReads(ctx context.Context, cells []string, servedType []topodatapb.TabletType, direction workflow.TrafficSwitchDirection) error
    43  	validateWorkflowHasCompleted(ctx context.Context) error
    44  	removeSourceTables(ctx context.Context, removalType workflow.TableRemovalType) error
    45  	dropSourceShards(ctx context.Context) error
    46  	dropSourceDeniedTables(ctx context.Context) error
    47  	freezeTargetVReplication(ctx context.Context) error
    48  	dropSourceReverseVReplicationStreams(ctx context.Context) error
    49  	dropTargetVReplicationStreams(ctx context.Context) error
    50  	removeTargetTables(ctx context.Context) error
    51  	dropTargetShards(ctx context.Context) error
    52  	deleteRoutingRules(ctx context.Context) error
    53  	deleteShardRoutingRules(ctx context.Context) error
    54  	addParticipatingTablesToKeyspace(ctx context.Context, keyspace, tableSpecs string) error
    55  	logs() *[]string
    56  }