forked from jaegertracing/jaeger
/
sampling_from_domain.go
100 lines (91 loc) · 3.61 KB
/
sampling_from_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"
"fmt"
"math"
"github.com/jaegertracing/jaeger/proto-gen/api_v2"
"github.com/jaegertracing/jaeger/thrift-gen/sampling"
)
// ConvertSamplingResponseFromDomain converts proto sampling response to its thrift representation.
func ConvertSamplingResponseFromDomain(r *api_v2.SamplingStrategyResponse) (*sampling.SamplingStrategyResponse, error) {
typ, err := convertStrategyTypeFromDomain(r.GetStrategyType())
if err != nil {
return nil, err
}
rl, err := convertRateLimitingFromDomain(r.GetRateLimitingSampling())
if err != nil {
return nil, err
}
thriftResp := &sampling.SamplingStrategyResponse{StrategyType: typ,
ProbabilisticSampling: convertProbabilisticFromDomain(r.GetProbabilisticSampling()),
RateLimitingSampling: rl,
OperationSampling: convertPerOperationFromDomain(r.GetOperationSampling()),
}
return thriftResp, nil
}
func convertProbabilisticFromDomain(s *api_v2.ProbabilisticSamplingStrategy) *sampling.ProbabilisticSamplingStrategy {
if s == nil {
return nil
}
return &sampling.ProbabilisticSamplingStrategy{SamplingRate: s.GetSamplingRate()}
}
func convertRateLimitingFromDomain(s *api_v2.RateLimitingSamplingStrategy) (*sampling.RateLimitingSamplingStrategy, error) {
if s == nil {
return nil, nil
}
if s.MaxTracesPerSecond > math.MaxInt16 {
return nil, errors.New("maxTracesPerSecond is higher than int16")
}
return &sampling.RateLimitingSamplingStrategy{MaxTracesPerSecond: int16(s.GetMaxTracesPerSecond())}, nil
}
func convertPerOperationFromDomain(s *api_v2.PerOperationSamplingStrategies) *sampling.PerOperationSamplingStrategies {
if s == nil {
return nil
}
r := &sampling.PerOperationSamplingStrategies{
DefaultSamplingProbability: s.GetDefaultSamplingProbability(),
DefaultLowerBoundTracesPerSecond: s.GetDefaultLowerBoundTracesPerSecond(),
DefaultUpperBoundTracesPerSecond: &s.DefaultUpperBoundTracesPerSecond,
}
fmt.Println(s.GetDefaultUpperBoundTracesPerSecond())
//if s.GetDefaultUpperBoundTracesPerSecond() > 0 {}
if s.GetPerOperationStrategies() != nil {
r.PerOperationStrategies = make([]*sampling.OperationSamplingStrategy, len(s.GetPerOperationStrategies()))
for i, k := range s.PerOperationStrategies {
r.PerOperationStrategies[i] = convertOperationFromDomain(k)
}
}
return r
}
func convertOperationFromDomain(s *api_v2.OperationSamplingStrategy) *sampling.OperationSamplingStrategy {
if s == nil {
return nil
}
return &sampling.OperationSamplingStrategy{
Operation: s.GetOperation(),
ProbabilisticSampling: convertProbabilisticFromDomain(s.GetProbabilisticSampling()),
}
}
func convertStrategyTypeFromDomain(s api_v2.SamplingStrategyType) (sampling.SamplingStrategyType, error) {
switch s {
case api_v2.SamplingStrategyType_PROBABILISTIC:
return sampling.SamplingStrategyType_PROBABILISTIC, nil
case api_v2.SamplingStrategyType_RATE_LIMITING:
return sampling.SamplingStrategyType_RATE_LIMITING, nil
default:
return sampling.SamplingStrategyType_PROBABILISTIC, errors.New("could not convert sampling strategy type")
}
}