tracing.go

/*
 * Copyright 2023 CloudWeGo Authors
 *
 * 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 stream

import (
	"context"

	"github.com/cloudwego/kitex/pkg/endpoint"
	"github.com/cloudwego/kitex/pkg/stats"
	"github.com/cloudwego/kitex/pkg/streaming"
)

func (s *StreamingConfig) streamRecvTraceMW(ctx context.Context) endpoint.RecvMiddleware {
	return func(next endpoint.RecvEndpoint) endpoint.RecvEndpoint {
		return func(stream streaming.Stream, message interface{}) (err error) {
			defer func() {
				s.EventHandler(stream.Context(), stats.StreamRecv, err)
			}()
			return next(stream, message)
		}
	}
}

func (s *StreamingConfig) streamSendTraceMW(ctx context.Context) endpoint.SendMiddleware {
	return func(next endpoint.SendEndpoint) endpoint.SendEndpoint {
		return func(stream streaming.Stream, message interface{}) (err error) {
			defer func() {
				s.EventHandler(stream.Context(), stats.StreamSend, err)
			}()
			return next(stream, message)
		}
	}
}