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// Copyright 2021 Google LLC. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package mysql
import (
"github.com/go-sql-driver/mysql"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
const (
// ER_DUP_ENTRY: Error returned by driver when inserting a duplicate row.
errNumDuplicate = 1062
// ER_LOCK_DEADLOCK: Error returned when there was a deadlock.
errNumDeadlock = 1213
)
// mysqlToGRPC converts some types of MySQL errors to GRPC errors. This gives
// clients more signal when the operation can be retried.
func mysqlToGRPC(err error) error {
mysqlErr, ok := err.(*mysql.MySQLError)
if !ok {
return err
}
if mysqlErr.Number == errNumDeadlock {
return status.Errorf(codes.Aborted, "MySQL: %v", mysqlErr)
}
return err
}
func isDuplicateErr(err error) bool {
switch err := err.(type) {
case *mysql.MySQLError:
return err.Number == errNumDuplicate
default:
return false
}
}
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