k9s/internal/model/resource.go

52 lines
1.2 KiB
Go

package model
import (
"context"
"time"
"github.com/derailed/k9s/internal"
"github.com/derailed/k9s/internal/render"
"github.com/rs/zerolog/log"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
)
// Resource represents a generic resource model.
type Resource struct {
namespace, gvr string
factory Factory
}
func (r *Resource) Init(ns, gvr string, f Factory) {
r.namespace, r.gvr, r.factory = ns, gvr, f
}
// List returns a collection of nodes.
func (r *Resource) List(ctx context.Context) ([]runtime.Object, error) {
defer func(t time.Time) {
log.Debug().Msgf("LIST elapsed: %v", time.Since(t))
}(time.Now())
strLabel, ok := ctx.Value(internal.KeyLabels).(string)
lsel := labels.Everything()
if sel, err := labels.ConvertSelectorToLabelsMap(strLabel); ok && err == nil {
lsel = sel.AsSelector()
}
return r.factory.List(r.gvr, r.namespace, lsel)
}
// Render returns a node as a row.
func (r *Resource) Hydrate(oo []runtime.Object, rr render.Rows, re Renderer) error {
defer func(t time.Time) {
log.Debug().Msgf("HYDRATE elapsed: %v", time.Since(t))
}(time.Now())
for i, o := range oo {
if err := re.Render(o, r.namespace, &rr[i]); err != nil {
return err
}
}
return nil
}