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function.go
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function.go
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package sortByName
import (
"context"
"sort"
"github.com/bookingcom/carbonapi/expr/helper"
"github.com/bookingcom/carbonapi/expr/interfaces"
"github.com/bookingcom/carbonapi/expr/types"
"github.com/bookingcom/carbonapi/pkg/parser"
)
type sortByName struct {
interfaces.FunctionBase
}
func GetOrder() interfaces.Order {
return interfaces.Any
}
func New(configFile string) []interfaces.FunctionMetadata {
res := make([]interfaces.FunctionMetadata, 0)
f := &sortByName{}
functions := []string{"sortByName"}
for _, n := range functions {
res = append(res, interfaces.FunctionMetadata{Name: n, F: f})
}
return res
}
// sortByName(seriesList, natural=false)
func (f *sortByName) Do(ctx context.Context, e parser.Expr, from, until int32, values map[parser.MetricRequest][]*types.MetricData, getTargetData interfaces.GetTargetData) ([]*types.MetricData, error) {
original, err := helper.GetSeriesArg(ctx, e.Args()[0], from, until, values, getTargetData)
if err != nil {
return nil, err
}
natSort, err := e.GetBoolNamedOrPosArgDefault("natural", 1, false)
if err != nil {
return nil, err
}
arg := make([]*types.MetricData, len(original))
copy(arg, original)
if natSort {
sort.Sort(helper.ByNameNatural(arg))
} else {
sort.Sort(helper.ByName(arg))
}
return arg, nil
}
// Description is auto-generated description, based on output of https://github.com/graphite-project/graphite-web
func (f *sortByName) Description() map[string]types.FunctionDescription {
return map[string]types.FunctionDescription{
"sortByName": {
Description: "Takes one metric or a wildcard seriesList.\nSorts the list of metrics by the metric name using either alphabetical order or natural sorting.\nNatural sorting allows names containing numbers to be sorted more naturally, e.g:\n- Alphabetical sorting: server1, server11, server12, server2\n- Natural sorting: server1, server2, server11, server12",
Function: "sortByName(seriesList, natural=False, reverse=False)",
Group: "Sorting",
Module: "graphite.render.functions",
Name: "sortByName",
Params: []types.FunctionParam{
{
Name: "seriesList",
Required: true,
Type: types.SeriesList,
},
{
Default: types.NewSuggestion(false),
Name: "natural",
Type: types.Boolean,
},
{
Default: types.NewSuggestion(false),
Name: "reverse",
Type: types.Boolean,
},
},
},
}
}