prometheus/vendor/go.opencensus.io/plugin/ocgrpc/client_stats_handler.go
Julius Volz b5c833ca21
Update go.mod dependencies before release (#5883)
* Update go.mod dependencies before release

Signed-off-by: Julius Volz <julius.volz@gmail.com>

* Add issue for showing query warnings in promtool

Signed-off-by: Julius Volz <julius.volz@gmail.com>

* Revert json-iterator back to 1.1.6

It produced errors when marshaling Point values with special float
values.

Signed-off-by: Julius Volz <julius.volz@gmail.com>

* Fix expected step values in promtool tests after client_golang update

Signed-off-by: Julius Volz <julius.volz@gmail.com>

* Update generated protobuf code after proto dep updates

Signed-off-by: Julius Volz <julius.volz@gmail.com>
2019-08-14 11:00:39 +02:00

50 lines
1.4 KiB
Go

// Copyright 2017, OpenCensus 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 ocgrpc
import (
"time"
"context"
"go.opencensus.io/tag"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/stats"
)
// statsTagRPC gets the tag.Map populated by the application code, serializes
// its tags into the GRPC metadata in order to be sent to the server.
func (h *ClientHandler) statsTagRPC(ctx context.Context, info *stats.RPCTagInfo) context.Context {
startTime := time.Now()
if info == nil {
if grpclog.V(2) {
grpclog.Infof("clientHandler.TagRPC called with nil info.", info.FullMethodName)
}
return ctx
}
d := &rpcData{
startTime: startTime,
method: info.FullMethodName,
}
ts := tag.FromContext(ctx)
if ts != nil {
encoded := tag.Encode(ts)
ctx = stats.SetTags(ctx, encoded)
}
return context.WithValue(ctx, rpcDataKey, d)
}