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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,136 @@ | ||
package handlers | ||
|
||
import ( | ||
"context" | ||
"fmt" | ||
table_types "github.com/ydb-platform/ydb-go-sdk/v3/table/types" | ||
"go.uber.org/zap" | ||
"google.golang.org/protobuf/types/known/timestamppb" | ||
"ydbcp/internal/config" | ||
"ydbcp/internal/connectors/db" | ||
"ydbcp/internal/connectors/db/yql/queries" | ||
"ydbcp/internal/connectors/s3" | ||
"ydbcp/internal/types" | ||
"ydbcp/internal/util/xlog" | ||
) | ||
|
||
func NewDBOperationHandler( | ||
db db.DBConnector, | ||
s3 s3.S3Connector, | ||
config config.Config, | ||
getQueryBuilder func(ctx context.Context) queries.WriteTableQuery, | ||
) types.OperationHandler { | ||
return func(ctx context.Context, op types.Operation) error { | ||
return DBOperationHandler(ctx, op, db, s3, config, getQueryBuilder) | ||
} | ||
} | ||
|
||
func DBOperationHandler( | ||
ctx context.Context, | ||
operation types.Operation, | ||
db db.DBConnector, | ||
s3 s3.S3Connector, | ||
config config.Config, | ||
getQueryBuilder func(ctx context.Context) queries.WriteTableQuery, | ||
) error { | ||
xlog.Info( | ||
ctx, "received operation", | ||
zap.String("id", operation.GetID()), | ||
zap.String("type", string(operation.GetType())), | ||
zap.String("state", string(operation.GetState())), | ||
zap.String("message", operation.GetMessage()), | ||
) | ||
|
||
if operation.GetType() != types.OperationTypeDB { | ||
return fmt.Errorf( | ||
"wrong type %s != %s for operation %s", | ||
operation.GetType(), types.OperationTypeDB, types.OperationToString(operation), | ||
) | ||
} | ||
|
||
dbOp, ok := operation.(*types.DeleteBackupOperation) | ||
if !ok { | ||
return fmt.Errorf("can't cast operation to DeleteBackupOperation %s", types.OperationToString(operation)) | ||
} | ||
|
||
if deadlineExceeded(dbOp.Audit.CreatedAt, config) { | ||
operation.SetState(types.OperationStateError) | ||
operation.SetMessage("Operation deadline exceeded") | ||
return db.UpdateOperation(ctx, operation) | ||
} | ||
|
||
backups, err := db.SelectBackups( | ||
ctx, queries.NewReadTableQuery( | ||
queries.WithTableName("Backups"), | ||
queries.WithSelectFields(queries.AllBackupFields...), | ||
queries.WithQueryFilters( | ||
queries.QueryFilter{ | ||
Field: "id", | ||
Values: []table_types.Value{table_types.StringValueFromString(dbOp.BackupID)}, | ||
}, | ||
), | ||
), | ||
) | ||
|
||
if err != nil { | ||
return fmt.Errorf("can't select backups: %v", err) | ||
} | ||
|
||
if len(backups) == 0 { | ||
return fmt.Errorf("backup not found") | ||
} | ||
|
||
backupToWrite := types.Backup{ | ||
ID: dbOp.BackupID, | ||
Status: types.BackupStateUnknown, | ||
} | ||
|
||
deleteBackup := func(pathPrefix string, bucket string) error { | ||
objects, err := s3.ListObjects(pathPrefix, bucket) | ||
if err != nil { | ||
return fmt.Errorf("failed to list S3 objects: %v", err) | ||
} | ||
|
||
if len(objects) != 0 { | ||
err = s3.DeleteObjects(objects, bucket) | ||
if err != nil { | ||
return fmt.Errorf("failed to delete S3 objects: %v", err) | ||
} | ||
} | ||
|
||
backupToWrite.Status = types.BackupStateDeleted | ||
operation.SetState(types.OperationStateDone) | ||
operation.SetMessage("Success") | ||
operation.GetAudit().CompletedAt = timestamppb.Now() | ||
return nil | ||
} | ||
|
||
switch dbOp.State { | ||
case types.OperationStatePending: | ||
{ | ||
operation.SetState(types.OperationStateRunning) | ||
err := db.UpdateOperation(ctx, operation) | ||
if err != nil { | ||
return fmt.Errorf("can't update operation: %v", err) | ||
} | ||
|
||
err = deleteBackup(backups[0].S3PathPrefix, backups[0].S3Bucket) | ||
if err != nil { | ||
return err | ||
} | ||
} | ||
case types.OperationStateRunning: | ||
{ | ||
err = deleteBackup(backups[0].S3PathPrefix, backups[0].S3Bucket) | ||
if err != nil { | ||
return err | ||
} | ||
} | ||
default: | ||
return fmt.Errorf("unexpected operation state %s", dbOp.State) | ||
} | ||
|
||
return db.ExecuteUpsert( | ||
ctx, getQueryBuilder(ctx).WithUpdateOperation(operation).WithUpdateBackup(backupToWrite), | ||
) | ||
} |
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