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count.go
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count.go
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package manipcli
import (
"context"
"fmt"
"time"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"go.aporeto.io/elemental"
"go.aporeto.io/manipulate"
)
// generateCountCommandForIdentity generates the command to count all objects based on its identity.
func generateCountCommandForIdentity(identity elemental.Identity, modelManager elemental.ModelManager, manipulatorMaker ManipulatorMaker) (*cobra.Command, error) {
cmd := &cobra.Command{
Use: identity.Name,
Aliases: []string{identity.Category},
Short: "Count " + identity.Category,
RunE: func(cmd *cobra.Command, args []string) error {
fParam := viper.GetStringSlice("param")
fTrackingID := viper.GetString(flagTrackingID)
fRecursive := viper.GetBool(flagRecursive)
fFilter := viper.GetString(flagFilter)
fOutput := viper.GetString(flagOutput)
fFormatTypeColumn := viper.GetStringSlice(formatTypeColumn)
fOutputTemplate := viper.GetString(flagOutputTemplate)
manipulator, err := manipulatorMaker()
if err != nil {
return fmt.Errorf("unable to make manipulator: %w", err)
}
parameters, err := parametersToURLValues(fParam)
if err != nil {
return fmt.Errorf("unable to convert parameters to url values: %w", err)
}
options := []manipulate.ContextOption{
manipulate.ContextOptionTracking(fTrackingID, "cli"),
manipulate.ContextOptionParameters(parameters),
manipulate.ContextOptionRecursive(fRecursive),
manipulate.ContextOptionReadConsistency(manipulate.ReadConsistencyStrong),
}
if fFilter != "" {
f, err := elemental.NewFilterFromString(fFilter)
if err != nil {
return fmt.Errorf("unable to parse filter %s: %s", fFilter, err)
}
options = append(options, manipulate.ContextOptionFilter(f))
}
if viper.IsSet(flagParent) {
parentName, parentID, err := splitParentInfo(viper.GetString(flagParent))
if err != nil {
return err
}
parent := modelManager.IdentifiableFromString(parentName)
if parent == nil {
return fmt.Errorf("unknown identity %s", parentName)
}
parent.SetIdentifier(parentID)
options = append(options, manipulate.ContextOptionParent(parent))
}
ctx, cancel := context.WithTimeout(cmd.Context(), 20*time.Second)
defer cancel()
mctx := manipulate.NewContext(ctx, options...)
num, err := manipulator.Count(mctx, identity)
if err != nil {
return fmt.Errorf("unable to count %s: %w", identity.Category, err)
}
outputType := fOutput
if fOutput == flagOutputDefault {
outputType = flagOutputNone
}
result, err := formatMaps(
prepareOutputFormat(outputType, formatTypeCount, fFormatTypeColumn, fOutputTemplate),
false,
[]map[string]any{{formatTypeCount: num}},
)
if err != nil {
return fmt.Errorf("unable to format output: %w", err)
}
fmt.Fprint(cmd.OutOrStdout(), result)
return nil
},
}
cmd.Flags().BoolP(flagRecursive, "r", false, "List all objects from the current namespace and all child namespaces.")
cmd.Flags().StringP(flagFilter, "f", "", "Query filter.")
cmd.Flags().StringP(flagParent, "", "", "Provide information about parent resource. Format `name/ID`")
return cmd, nil
}