github.com/dolthub/dolt/go@v0.40.5-0.20240520175717-68db7794bea6/libraries/doltcore/sqle/cluster/replication_service.go (about)

     1  // Copyright 2023 Dolthub, 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  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package cluster
    16  
    17  import (
    18  	"context"
    19  
    20  	"github.com/dolthub/go-mysql-server/sql"
    21  	"github.com/dolthub/go-mysql-server/sql/mysql_db"
    22  	"github.com/sirupsen/logrus"
    23  	"google.golang.org/grpc/codes"
    24  	"google.golang.org/grpc/status"
    25  
    26  	replicationapi "github.com/dolthub/dolt/go/gen/proto/dolt/services/replicationapi/v1alpha1"
    27  	"github.com/dolthub/dolt/go/libraries/utils/filesys"
    28  )
    29  
    30  type BranchControlPersistence interface {
    31  	LoadData(context.Context, []byte, bool) error
    32  	SaveData(context.Context, filesys.Filesys) error
    33  }
    34  
    35  type replicationServiceServer struct {
    36  	replicationapi.UnimplementedReplicationServiceServer
    37  
    38  	mysqlDb *mysql_db.MySQLDb
    39  	lgr     *logrus.Entry
    40  
    41  	ctxFactory func(context.Context) (*sql.Context, error)
    42  
    43  	branchControl        BranchControlPersistence
    44  	branchControlFilesys filesys.Filesys
    45  
    46  	dropDatabase func(*sql.Context, string) error
    47  }
    48  
    49  func (s *replicationServiceServer) UpdateUsersAndGrants(ctx context.Context, req *replicationapi.UpdateUsersAndGrantsRequest) (*replicationapi.UpdateUsersAndGrantsResponse, error) {
    50  	sqlCtx, err := s.ctxFactory(ctx)
    51  	if err != nil {
    52  		return nil, err
    53  	}
    54  
    55  	ed := s.mysqlDb.Editor()
    56  	defer ed.Close()
    57  	err = s.mysqlDb.OverwriteUsersAndGrantData(sqlCtx, ed, req.SerializedContents)
    58  	if err != nil {
    59  		return nil, err
    60  	}
    61  	err = s.mysqlDb.Persist(sqlCtx, ed)
    62  	if err != nil {
    63  		return nil, err
    64  	}
    65  	return &replicationapi.UpdateUsersAndGrantsResponse{}, nil
    66  }
    67  
    68  func (s *replicationServiceServer) UpdateBranchControl(ctx context.Context, req *replicationapi.UpdateBranchControlRequest) (*replicationapi.UpdateBranchControlResponse, error) {
    69  	sqlCtx, err := s.ctxFactory(ctx)
    70  	if err != nil {
    71  		return nil, err
    72  	}
    73  
    74  	err = s.branchControl.LoadData(sqlCtx, req.SerializedContents /* isFirstLoad */, false)
    75  	if err != nil {
    76  		return nil, err
    77  	}
    78  	err = s.branchControl.SaveData(sqlCtx, s.branchControlFilesys)
    79  	if err != nil {
    80  		return nil, err
    81  	}
    82  	return &replicationapi.UpdateBranchControlResponse{}, nil
    83  }
    84  
    85  func (s *replicationServiceServer) DropDatabase(ctx context.Context, req *replicationapi.DropDatabaseRequest) (*replicationapi.DropDatabaseResponse, error) {
    86  	if s.dropDatabase == nil {
    87  		return nil, status.Error(codes.Unimplemented, "unimplemented")
    88  	}
    89  
    90  	sqlCtx, err := s.ctxFactory(ctx)
    91  	if err != nil {
    92  		return nil, err
    93  	}
    94  
    95  	err = s.dropDatabase(sqlCtx, req.Name)
    96  	s.lgr.Tracef("dropped database [%s] through sqle.DropDatabase. err: %v", req.Name, err)
    97  	if err != nil && !sql.ErrDatabaseNotFound.Is(err) {
    98  		return nil, err
    99  	}
   100  	return &replicationapi.DropDatabaseResponse{}, nil
   101  }