/
factory.go
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/
factory.go
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// Copyright (c) 2019 The Jaeger Authors.
// Copyright (c) 2017 Uber Technologies, Inc.
//
// 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 memory
import (
"flag"
"github.com/spf13/viper"
"go.uber.org/zap"
"github.com/jaegertracing/jaeger/pkg/distributedlock"
"github.com/jaegertracing/jaeger/pkg/memory/config"
"github.com/jaegertracing/jaeger/pkg/metrics"
"github.com/jaegertracing/jaeger/plugin"
"github.com/jaegertracing/jaeger/storage"
"github.com/jaegertracing/jaeger/storage/dependencystore"
"github.com/jaegertracing/jaeger/storage/samplingstore"
"github.com/jaegertracing/jaeger/storage/spanstore"
)
var ( // interface comformance checks
_ storage.Factory = (*Factory)(nil)
_ storage.ArchiveFactory = (*Factory)(nil)
_ storage.SamplingStoreFactory = (*Factory)(nil)
_ plugin.Configurable = (*Factory)(nil)
)
// Factory implements storage.Factory and creates storage components backed by memory store.
type Factory struct {
options Options
metricsFactory metrics.Factory
logger *zap.Logger
store *Store
}
// NewFactory creates a new Factory.
func NewFactory() *Factory {
return &Factory{}
}
// NewFactoryWithConfig is used from jaeger(v2).
func NewFactoryWithConfig(
cfg config.Configuration,
metricsFactory metrics.Factory,
logger *zap.Logger,
) *Factory {
f := NewFactory()
f.InitFromOptions(Options{Configuration: cfg})
_ = f.Initialize(metricsFactory, logger)
return f
}
// AddFlags implements plugin.Configurable
func (f *Factory) AddFlags(flagSet *flag.FlagSet) {
AddFlags(flagSet)
}
// InitFromViper implements plugin.Configurable
func (f *Factory) InitFromViper(v *viper.Viper, logger *zap.Logger) {
f.options.InitFromViper(v)
}
// InitFromOptions initializes factory from the supplied options
func (f *Factory) InitFromOptions(opts Options) {
f.options = opts
}
// Initialize implements storage.Factory
func (f *Factory) Initialize(metricsFactory metrics.Factory, logger *zap.Logger) error {
f.metricsFactory, f.logger = metricsFactory, logger
f.store = WithConfiguration(f.options.Configuration)
logger.Info("Memory storage initialized", zap.Any("configuration", f.store.defaultConfig))
f.publishOpts()
return nil
}
// CreateSpanReader implements storage.Factory
func (f *Factory) CreateSpanReader() (spanstore.Reader, error) {
return f.store, nil
}
// CreateSpanWriter implements storage.Factory
func (f *Factory) CreateSpanWriter() (spanstore.Writer, error) {
return f.store, nil
}
// CreateArchiveSpanReader implements storage.ArchiveFactory
func (f *Factory) CreateArchiveSpanReader() (spanstore.Reader, error) {
return f.store, nil
}
// CreateArchiveSpanWriter implements storage.ArchiveFactory
func (f *Factory) CreateArchiveSpanWriter() (spanstore.Writer, error) {
return f.store, nil
}
// CreateDependencyReader implements storage.Factory
func (f *Factory) CreateDependencyReader() (dependencystore.Reader, error) {
return f.store, nil
}
// CreateSamplingStore implements storage.SamplingStoreFactory
func (f *Factory) CreateSamplingStore(maxBuckets int) (samplingstore.Store, error) {
return NewSamplingStore(maxBuckets), nil
}
// CreateLock implements storage.SamplingStoreFactory
func (f *Factory) CreateLock() (distributedlock.Lock, error) {
return &lock{}, nil
}
func (f *Factory) publishOpts() {
internalFactory := f.metricsFactory.Namespace(metrics.NSOptions{Name: "internal"})
internalFactory.Gauge(metrics.Options{Name: limit}).
Update(int64(f.options.Configuration.MaxTraces))
}