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type_config.go
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/
type_config.go
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// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package aggregation
import (
"fmt"
"github.com/m3db/m3/src/x/instrument"
"github.com/m3db/m3/src/x/pool"
)
// TypesConfiguration contains configuration for aggregation types.
type TypesConfiguration struct {
// Default aggregation types for counter metrics.
DefaultCounterAggregationTypes *Types `yaml:"defaultCounterAggregationTypes"`
// Default aggregation types for timer metrics.
DefaultTimerAggregationTypes *Types `yaml:"defaultTimerAggregationTypes"`
// Default aggregation types for gauge metrics.
DefaultGaugeAggregationTypes *Types `yaml:"defaultGaugeAggregationTypes"`
// CounterTransformFnType configures the type string transformation function for counters.
CounterTransformFnType *transformFnType `yaml:"counterTransformFnType"`
// TimerTransformFnType configures the type string transformation function for timers.
TimerTransformFnType *transformFnType `yaml:"timerTransformFnType"`
// GaugeTransformFnType configures the type string transformation function for gauges.
GaugeTransformFnType *transformFnType `yaml:"gaugeTransformFnType"`
// Pool of aggregation types.
AggregationTypesPool pool.ObjectPoolConfiguration `yaml:"aggregationTypesPool"`
// Pool of quantile slices.
QuantilesPool pool.BucketizedPoolConfiguration `yaml:"quantilesPool"`
}
// NewOptions creates a new Option.
func (c TypesConfiguration) NewOptions(instrumentOpts instrument.Options) (TypesOptions, error) {
opts := NewTypesOptions()
if c.DefaultCounterAggregationTypes != nil {
opts = opts.SetDefaultCounterAggregationTypes(*c.DefaultCounterAggregationTypes)
}
if c.DefaultGaugeAggregationTypes != nil {
opts = opts.SetDefaultGaugeAggregationTypes(*c.DefaultGaugeAggregationTypes)
}
if c.DefaultTimerAggregationTypes != nil {
opts = opts.SetDefaultTimerAggregationTypes(*c.DefaultTimerAggregationTypes)
}
if c.CounterTransformFnType != nil {
fn, err := c.CounterTransformFnType.TransformFn()
if err != nil {
return nil, err
}
opts = opts.SetCounterTypeStringTransformFn(fn)
}
if c.TimerTransformFnType != nil {
fn, err := c.TimerTransformFnType.TransformFn()
if err != nil {
return nil, err
}
opts = opts.SetTimerTypeStringTransformFn(fn)
}
if c.GaugeTransformFnType != nil {
fn, err := c.GaugeTransformFnType.TransformFn()
if err != nil {
return nil, err
}
opts = opts.SetGaugeTypeStringTransformFn(fn)
}
// Set aggregation types pool.
scope := instrumentOpts.MetricsScope()
iOpts := instrumentOpts.SetMetricsScope(scope.SubScope("aggregation-types-pool"))
aggTypesPoolOpts := c.AggregationTypesPool.NewObjectPoolOptions(iOpts)
aggTypesPool := NewTypesPool(aggTypesPoolOpts)
opts = opts.SetTypesPool(aggTypesPool)
aggTypesPool.Init(func() Types {
return make(Types, 0, len(ValidTypes))
})
// Set quantiles pool.
iOpts = instrumentOpts.SetMetricsScope(scope.SubScope("quantile-pool"))
quantilesPool := pool.NewFloatsPool(
c.QuantilesPool.NewBuckets(),
c.QuantilesPool.NewObjectPoolOptions(iOpts),
)
opts = opts.SetQuantilesPool(quantilesPool)
quantilesPool.Init()
return opts, nil
}
type transformFnType string
var (
noopTransformType transformFnType = "noop"
emptyTransformType transformFnType = "empty"
suffixTransformType transformFnType = "suffix"
validTypes = []transformFnType{
noopTransformType,
emptyTransformType,
suffixTransformType,
}
)
func (t *transformFnType) UnmarshalYAML(unmarshal func(interface{}) error) error {
var str string
if err := unmarshal(&str); err != nil {
return err
}
var validStrings []string
for _, validType := range validTypes {
validString := string(validType)
if validString == str {
*t = validType
return nil
}
validStrings = append(validStrings, validString)
}
return fmt.Errorf("invalid transform type %s, valid types are: %v", str, validStrings)
}
func (t transformFnType) TransformFn() (TypeStringTransformFn, error) {
switch t {
case noopTransformType:
return NoOpTransform, nil
case emptyTransformType:
return EmptyTransform, nil
case suffixTransformType:
return SuffixTransform, nil
default:
return nil, fmt.Errorf("invalid type string transform function type: %s", string(t))
}
}