github.com/cloudwego/kitex@v0.9.0/internal/stream/tracing.go (about)

     1  /*
     2   * Copyright 2023 CloudWeGo 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 stream
    18  
    19  import (
    20  	"context"
    21  
    22  	"github.com/cloudwego/kitex/pkg/endpoint"
    23  	"github.com/cloudwego/kitex/pkg/stats"
    24  	"github.com/cloudwego/kitex/pkg/streaming"
    25  )
    26  
    27  func (s *StreamingConfig) streamRecvTraceMW(ctx context.Context) endpoint.RecvMiddleware {
    28  	return func(next endpoint.RecvEndpoint) endpoint.RecvEndpoint {
    29  		return func(stream streaming.Stream, message interface{}) (err error) {
    30  			defer func() {
    31  				s.EventHandler(stream.Context(), stats.StreamRecv, err)
    32  			}()
    33  			return next(stream, message)
    34  		}
    35  	}
    36  }
    37  
    38  func (s *StreamingConfig) streamSendTraceMW(ctx context.Context) endpoint.SendMiddleware {
    39  	return func(next endpoint.SendEndpoint) endpoint.SendEndpoint {
    40  		return func(stream streaming.Stream, message interface{}) (err error) {
    41  			defer func() {
    42  				s.EventHandler(stream.Context(), stats.StreamSend, err)
    43  			}()
    44  			return next(stream, message)
    45  		}
    46  	}
    47  }