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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| package handlers | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| table_types "github.com/ydb-platform/ydb-go-sdk/v3/table/types" | ||
| "go.uber.org/zap" | ||
| "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, getQueryBuilder func(ctx context.Context) queries.WriteTableQuery, | ||
| ) types.OperationHandler { | ||
| return func(ctx context.Context, op types.Operation) error { | ||
| return DBOperationHandler(ctx, op, db, s3, getQueryBuilder) | ||
| } | ||
| } | ||
|
|
||
| func DBOperationHandler( | ||
| ctx context.Context, | ||
| operation types.Operation, | ||
| db db.DBConnector, | ||
| s3 s3.S3Connector, | ||
| 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)) | ||
| } | ||
|
|
||
| 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) | ||
| } | ||
| } | ||
|
|
||
| operation.SetState(types.OperationStateDone) | ||
| backupToWrite.Status = types.BackupStateDeleted | ||
| 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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