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tableconvertor.go
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/
tableconvertor.go
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// SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and Gardener contributors
//
// SPDX-License-Identifier: Apache-2.0
package storage
import (
"context"
"fmt"
"k8s.io/apimachinery/pkg/api/meta"
metatable "k8s.io/apimachinery/pkg/api/meta/table"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
metav1beta1 "k8s.io/apimachinery/pkg/apis/meta/v1beta1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apiserver/pkg/registry/rest"
"github.com/gardener/gardener/pkg/apis/core"
)
var swaggerMetadataDescriptions = metav1.ObjectMeta{}.SwaggerDoc()
type convertor struct {
headers []metav1beta1.TableColumnDefinition
}
func newTableConvertor() rest.TableConvertor {
return &convertor{
headers: []metav1beta1.TableColumnDefinition{
{Name: "Name", Type: "string", Format: "name", Description: swaggerMetadataDescriptions["name"]},
{Name: "Scope", Type: "string", Format: "name", Description: swaggerMetadataDescriptions["scope"]},
{Name: "Cluster Lifetime", Type: "string", Format: "name", Description: swaggerMetadataDescriptions["clusterLifetimeDays"]},
{Name: "Age", Type: "date", Description: swaggerMetadataDescriptions["creationTimestamp"]},
},
}
}
// ConvertToTable converts the output to a table.
func (c *convertor) ConvertToTable(_ context.Context, obj runtime.Object, _ runtime.Object) (*metav1beta1.Table, error) {
var (
err error
table = &metav1beta1.Table{
ColumnDefinitions: c.headers,
}
)
if m, err := meta.ListAccessor(obj); err == nil {
table.ResourceVersion = m.GetResourceVersion()
table.Continue = m.GetContinue()
} else {
if m, err := meta.CommonAccessor(obj); err == nil {
table.ResourceVersion = m.GetResourceVersion()
}
}
table.Rows, err = metatable.MetaToTableRow(obj, func(obj runtime.Object, _ metav1.Object, _, _ string) ([]interface{}, error) {
var (
quota = obj.(*core.Quota)
cells = []interface{}{}
)
cells = append(cells, quota.Name)
cells = append(cells, fmt.Sprintf("%s.%s", quota.Spec.Scope.APIVersion, quota.Spec.Scope.Kind))
if clusterLifetimeDays := quota.Spec.ClusterLifetimeDays; clusterLifetimeDays != nil {
cells = append(cells, fmt.Sprintf("%d days", *clusterLifetimeDays))
} else {
cells = append(cells, "<unspecified>")
}
cells = append(cells, metatable.ConvertToHumanReadableDateType(quota.CreationTimestamp))
return cells, nil
})
return table, err
}