forked from jaegertracing/jaeger
/
metrics.go
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/
metrics.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 configmanager
import (
"github.com/uber/jaeger-lib/metrics"
"github.com/jaegertracing/jaeger/thrift-gen/baggage"
"github.com/jaegertracing/jaeger/thrift-gen/sampling"
)
// configManagerMetrics holds metrics related to ClientConfigManager
type configManagerMetrics struct {
// Number of successful sampling rate responses from collector
SamplingSuccess metrics.Counter `metric:"collector-proxy" tags:"result=ok,endpoint=sampling"`
// Number of failed sampling rate responses from collector
SamplingFailures metrics.Counter `metric:"collector-proxy" tags:"result=err,endpoint=sampling"`
// Number of successful baggage restriction responses from collector
BaggageSuccess metrics.Counter `metric:"collector-proxy" tags:"result=ok,endpoint=baggage"`
// Number of failed baggage restriction responses from collector
BaggageFailures metrics.Counter `metric:"collector-proxy" tags:"result=err,endpoint=baggage"`
}
// ManagerWithMetrics is manager with metrics integration.
type ManagerWithMetrics struct {
wrapped ClientConfigManager
metrics configManagerMetrics
}
// WrapWithMetrics wraps ClientConfigManager and creates metrics for its invocations.
func WrapWithMetrics(manager ClientConfigManager, mFactory metrics.Factory) *ManagerWithMetrics {
m := configManagerMetrics{}
metrics.Init(&m, mFactory, nil)
return &ManagerWithMetrics{wrapped: manager, metrics: m}
}
// GetSamplingStrategy returns sampling strategy from server.
func (m *ManagerWithMetrics) GetSamplingStrategy(serviceName string) (*sampling.SamplingStrategyResponse, error) {
r, err := m.wrapped.GetSamplingStrategy(serviceName)
if err != nil {
m.metrics.SamplingFailures.Inc(1)
} else {
m.metrics.SamplingSuccess.Inc(1)
}
return r, err
}
// GetBaggageRestrictions returns baggage restrictions from server.
func (m *ManagerWithMetrics) GetBaggageRestrictions(serviceName string) ([]*baggage.BaggageRestriction, error) {
r, err := m.wrapped.GetBaggageRestrictions(serviceName)
if err != nil {
m.metrics.BaggageFailures.Inc(1)
} else {
m.metrics.BaggageSuccess.Inc(1)
}
return r, err
}