grpc-go/internal/testutils/stubstatshandler.go

66 lines
2.0 KiB
Go

/*
*
* Copyright 2023 gRPC 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 testutils
import (
"context"
"google.golang.org/grpc/stats"
)
// StubStatsHandler is a stats handler that is easy to customize within
// individual test cases. It is a stubbable implementation of
// google.golang.org/grpc/stats.Handler for testing purposes.
type StubStatsHandler struct {
TagRPCF func(ctx context.Context, info *stats.RPCTagInfo) context.Context
HandleRPCF func(ctx context.Context, info stats.RPCStats)
TagConnF func(ctx context.Context, info *stats.ConnTagInfo) context.Context
HandleConnF func(ctx context.Context, info stats.ConnStats)
}
// TagRPC calls the StubStatsHandler's TagRPCF, if set.
func (ssh *StubStatsHandler) TagRPC(ctx context.Context, info *stats.RPCTagInfo) context.Context {
if ssh.TagRPCF != nil {
return ssh.TagRPCF(ctx, info)
}
return ctx
}
// HandleRPC calls the StubStatsHandler's HandleRPCF, if set.
func (ssh *StubStatsHandler) HandleRPC(ctx context.Context, rs stats.RPCStats) {
if ssh.HandleRPCF != nil {
ssh.HandleRPCF(ctx, rs)
}
}
// TagConn calls the StubStatsHandler's TagConnF, if set.
func (ssh *StubStatsHandler) TagConn(ctx context.Context, info *stats.ConnTagInfo) context.Context {
if ssh.TagConnF != nil {
return ssh.TagConnF(ctx, info)
}
return ctx
}
// HandleConn calls the StubStatsHandler's HandleConnF, if set.
func (ssh *StubStatsHandler) HandleConn(ctx context.Context, cs stats.ConnStats) {
if ssh.HandleConnF != nil {
ssh.HandleConnF(ctx, cs)
}
}