vitess.io/vitess@v0.16.2/go/vt/vttablet/tabletconn/grpc_error.go (about)

     1  /*
     2  Copyright 2019 The Vitess Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package tabletconn
    18  
    19  import (
    20  	"io"
    21  
    22  	"google.golang.org/grpc/codes"
    23  	"google.golang.org/grpc/status"
    24  
    25  	"vitess.io/vitess/go/vt/vterrors"
    26  
    27  	vtrpcpb "vitess.io/vitess/go/vt/proto/vtrpc"
    28  )
    29  
    30  // ErrorFromGRPC converts a GRPC error to vtError for
    31  // tabletserver calls.
    32  func ErrorFromGRPC(err error) error {
    33  	// io.EOF is end of stream. Don't treat it as an error.
    34  	if err == nil || err == io.EOF {
    35  		return nil
    36  	}
    37  	code := codes.Unknown
    38  	if s, ok := status.FromError(err); ok {
    39  		code = s.Code()
    40  	}
    41  	return vterrors.Errorf(vtrpcpb.Code(code), "vttablet: %v", err)
    42  }
    43  
    44  // ErrorFromVTRPC converts a *vtrpcpb.RPCError to vtError for
    45  // tabletserver calls.
    46  func ErrorFromVTRPC(err *vtrpcpb.RPCError) error {
    47  	if err == nil {
    48  		return nil
    49  	}
    50  	return vterrors.Errorf(err.Code, "vttablet: %s", err.Message)
    51  }