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sampling_to_domain.go
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sampling_to_domain.go
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// Copyright (c) 2018 The Jaeger 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 jaeger
import (
"errors"
"github.com/jaegertracing/jaeger/proto-gen/api_v2"
"github.com/jaegertracing/jaeger/thrift-gen/sampling"
)
// ConvertSamplingResponseToDomain converts thrift sampling response to its proto representation.
func ConvertSamplingResponseToDomain(r *sampling.SamplingStrategyResponse) (*api_v2.SamplingStrategyResponse, error) {
if r == nil {
return nil, nil
}
t, err := convertStrategyTypeToDomain(r.GetStrategyType())
if err != nil {
return nil, err
}
response := &api_v2.SamplingStrategyResponse{
StrategyType: t,
ProbabilisticSampling: convertProbabilisticToDomain(r.GetProbabilisticSampling()),
RateLimitingSampling: convertRateLimitingToDomain(r.GetRateLimitingSampling()),
OperationSampling: convertPerOperationToDomain(r.GetOperationSampling()),
}
return response, nil
}
func convertRateLimitingToDomain(s *sampling.RateLimitingSamplingStrategy) *api_v2.RateLimitingSamplingStrategy {
if s == nil {
return nil
}
return &api_v2.RateLimitingSamplingStrategy{MaxTracesPerSecond: int32(s.GetMaxTracesPerSecond())}
}
func convertProbabilisticToDomain(s *sampling.ProbabilisticSamplingStrategy) *api_v2.ProbabilisticSamplingStrategy {
if s == nil {
return nil
}
return &api_v2.ProbabilisticSamplingStrategy{SamplingRate: s.GetSamplingRate()}
}
func convertPerOperationToDomain(s *sampling.PerOperationSamplingStrategies) *api_v2.PerOperationSamplingStrategies {
if s == nil {
return nil
}
poss := make([]*api_v2.OperationSamplingStrategy, len(s.PerOperationStrategies))
for i, pos := range s.PerOperationStrategies {
poss[i] = &api_v2.OperationSamplingStrategy{
Operation: pos.Operation,
ProbabilisticSampling: convertProbabilisticToDomain(pos.GetProbabilisticSampling()),
}
}
return &api_v2.PerOperationSamplingStrategies{
DefaultSamplingProbability: s.GetDefaultSamplingProbability(),
DefaultUpperBoundTracesPerSecond: s.GetDefaultUpperBoundTracesPerSecond(),
DefaultLowerBoundTracesPerSecond: s.GetDefaultLowerBoundTracesPerSecond(),
PerOperationStrategies: poss,
}
}
func convertStrategyTypeToDomain(t sampling.SamplingStrategyType) (api_v2.SamplingStrategyType, error) {
switch t {
case sampling.SamplingStrategyType_PROBABILISTIC:
return api_v2.SamplingStrategyType_PROBABILISTIC, nil
case sampling.SamplingStrategyType_RATE_LIMITING:
return api_v2.SamplingStrategyType_RATE_LIMITING, nil
default:
return api_v2.SamplingStrategyType_PROBABILISTIC, errors.New("could not convert sampling strategy type")
}
}