go.temporal.io/server@v1.23.0/common/rpc/interceptor/stream_error.go (about)

     1  // The MIT License
     2  //
     3  // Copyright (c) 2020 Temporal Technologies Inc.  All rights reserved.
     4  //
     5  // Copyright (c) 2020 Uber Technologies, Inc.
     6  //
     7  // Permission is hereby granted, free of charge, to any person obtaining a copy
     8  // of this software and associated documentation files (the "Software"), to deal
     9  // in the Software without restriction, including without limitation the rights
    10  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    11  // copies of the Software, and to permit persons to whom the Software is
    12  // furnished to do so, subject to the following conditions:
    13  //
    14  // The above copyright notice and this permission notice shall be included in
    15  // all copies or substantial portions of the Software.
    16  //
    17  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    18  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    19  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    20  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    21  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    22  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    23  // THE SOFTWARE.
    24  
    25  package interceptor
    26  
    27  import (
    28  	"context"
    29  	"io"
    30  
    31  	"go.temporal.io/api/serviceerror"
    32  	"google.golang.org/grpc"
    33  	"google.golang.org/grpc/codes"
    34  	"google.golang.org/grpc/status"
    35  )
    36  
    37  type (
    38  	ClientStreamErrorInterceptor struct {
    39  		grpc.ClientStream
    40  	}
    41  )
    42  
    43  var _ grpc.ClientStream = (*ClientStreamErrorInterceptor)(nil)
    44  
    45  func NewClientStreamErrorInterceptor(
    46  	clientStream grpc.ClientStream,
    47  ) *ClientStreamErrorInterceptor {
    48  	return &ClientStreamErrorInterceptor{
    49  		ClientStream: clientStream,
    50  	}
    51  }
    52  
    53  func (c *ClientStreamErrorInterceptor) CloseSend() error {
    54  	return errorConvert(c.ClientStream.CloseSend())
    55  }
    56  
    57  func (c *ClientStreamErrorInterceptor) SendMsg(m interface{}) error {
    58  	return errorConvert(c.ClientStream.SendMsg(m))
    59  }
    60  
    61  func (c *ClientStreamErrorInterceptor) RecvMsg(m interface{}) error {
    62  	return errorConvert(c.ClientStream.RecvMsg(m))
    63  }
    64  
    65  func StreamErrorInterceptor(
    66  	ctx context.Context,
    67  	desc *grpc.StreamDesc,
    68  	cc *grpc.ClientConn,
    69  	method string,
    70  	streamer grpc.Streamer,
    71  	opts ...grpc.CallOption,
    72  ) (grpc.ClientStream, error) {
    73  	clientStream, err := streamer(ctx, desc, cc, method, opts...)
    74  	if err != nil {
    75  		return nil, errorConvert(err)
    76  	}
    77  	return NewClientStreamErrorInterceptor(clientStream), nil
    78  }
    79  
    80  func errorConvert(err error) error {
    81  	switch err {
    82  	case nil:
    83  		return nil
    84  	case io.EOF:
    85  		return io.EOF
    86  	default:
    87  		return FromStatus(status.Convert(err))
    88  	}
    89  }
    90  
    91  // FromStatus converts gRPC Status to service error.
    92  func FromStatus(st *status.Status) error {
    93  	if st == nil {
    94  		return nil
    95  	}
    96  
    97  	switch st.Code() {
    98  	case codes.OK:
    99  		return nil
   100  	case codes.DeadlineExceeded:
   101  		return serviceerror.NewDeadlineExceeded(st.Message())
   102  	case codes.Canceled:
   103  		return serviceerror.NewCanceled(st.Message())
   104  	case codes.InvalidArgument:
   105  		return serviceerror.NewInvalidArgument(st.Message())
   106  	case codes.FailedPrecondition:
   107  		return serviceerror.NewFailedPrecondition(st.Message())
   108  	case codes.Unavailable:
   109  		return serviceerror.NewUnavailable(st.Message())
   110  	case codes.Internal:
   111  		return serviceerror.NewInternal(st.Message())
   112  	case codes.Unknown:
   113  		return serviceerror.NewInternal(st.Message())
   114  	default:
   115  		return serviceerror.NewInternal(st.Message())
   116  	}
   117  }