github.com/mre-fog/trillianxx@v1.1.2-0.20180615153820-ae375a99d36a/server/errors/errors.go (about)

     1  // Copyright 2017 Google Inc. All Rights Reserved.
     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 errors
    16  
    17  import (
    18  	"database/sql"
    19  
    20  	"google.golang.org/grpc/codes"
    21  	"google.golang.org/grpc/status"
    22  )
    23  
    24  // WrapError wraps err as a gRPC error if err is a well-known error instance
    25  // (such as canonical SQL errors), else err is returned unmodified.
    26  func WrapError(err error) error {
    27  	if err == sql.ErrNoRows {
    28  		return status.Errorf(codes.NotFound, err.Error())
    29  	}
    30  
    31  	return err
    32  }