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logging.go
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logging.go
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/*
* Copyright 2022 The Yorkie Authors. All rights reserved.
*
* 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 connecthelper provides helper functions for connectRPC.
package connecthelper
import (
"context"
"strconv"
"sync/atomic"
"connectrpc.com/connect"
"github.com/yorkie-team/yorkie/server/logging"
)
type reqID int32
func (c *reqID) next() string {
next := atomic.AddInt32((*int32)(c), 1)
return "r" + strconv.Itoa(int(next))
}
// LoggingInterceptor is an interceptor for request logging.
type LoggingInterceptor struct {
reqID reqID
}
// NewLoggingInterceptor creates a new instance of LoggingInterceptor.
func NewLoggingInterceptor() *LoggingInterceptor {
return &LoggingInterceptor{}
}
// WrapUnary creates a unary server interceptor for request logging.
func (i *LoggingInterceptor) WrapUnary(next connect.UnaryFunc) connect.UnaryFunc {
return func(
ctx context.Context,
req connect.AnyRequest,
) (connect.AnyResponse, error) {
reqLogger := logging.New(i.reqID.next())
return next(logging.With(ctx, reqLogger), req)
}
}
// WrapStreamingClient creates a stream client interceptor for request logging.
func (i *LoggingInterceptor) WrapStreamingClient(next connect.StreamingClientFunc) connect.StreamingClientFunc {
return func(
ctx context.Context,
spec connect.Spec,
) connect.StreamingClientConn {
return next(ctx, spec)
}
}
// WrapStreamingHandler creates a stream server interceptor for request logging.
func (i *LoggingInterceptor) WrapStreamingHandler(next connect.StreamingHandlerFunc) connect.StreamingHandlerFunc {
return func(
ctx context.Context,
conn connect.StreamingHandlerConn,
) error {
reqLogger := logging.New(i.reqID.next())
return next(logging.With(ctx, reqLogger), conn)
}
}