mirror of https://github.com/k3s-io/k3s
102 lines
3.1 KiB
Go
102 lines
3.1 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package rest
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import (
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"context"
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"fmt"
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"net/http"
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"time"
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"k8s.io/apimachinery/pkg/api/meta"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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)
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type defaultTableConvertor struct {
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qualifiedResource schema.GroupResource
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}
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// NewDefaultTableConvertor creates a default convertor for the provided resource.
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func NewDefaultTableConvertor(resource schema.GroupResource) TableConvertor {
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return defaultTableConvertor{qualifiedResource: resource}
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}
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var swaggerMetadataDescriptions = metav1.ObjectMeta{}.SwaggerDoc()
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func (c defaultTableConvertor) ConvertToTable(ctx context.Context, object runtime.Object, tableOptions runtime.Object) (*metav1.Table, error) {
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var table metav1.Table
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fn := func(obj runtime.Object) error {
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m, err := meta.Accessor(obj)
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if err != nil {
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return errNotAcceptable{resource: c.qualifiedResource}
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}
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table.Rows = append(table.Rows, metav1.TableRow{
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Cells: []interface{}{m.GetName(), m.GetCreationTimestamp().Time.UTC().Format(time.RFC3339)},
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Object: runtime.RawExtension{Object: obj},
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})
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return nil
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}
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switch {
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case meta.IsListType(object):
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if err := meta.EachListItem(object, fn); err != nil {
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return nil, err
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}
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default:
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if err := fn(object); err != nil {
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return nil, err
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}
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}
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if m, err := meta.ListAccessor(object); err == nil {
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table.ResourceVersion = m.GetResourceVersion()
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table.SelfLink = m.GetSelfLink()
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table.Continue = m.GetContinue()
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table.RemainingItemCount = m.GetRemainingItemCount()
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} else {
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if m, err := meta.CommonAccessor(object); err == nil {
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table.ResourceVersion = m.GetResourceVersion()
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table.SelfLink = m.GetSelfLink()
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}
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}
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if opt, ok := tableOptions.(*metav1.TableOptions); !ok || !opt.NoHeaders {
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table.ColumnDefinitions = []metav1.TableColumnDefinition{
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{Name: "Name", Type: "string", Format: "name", Description: swaggerMetadataDescriptions["name"]},
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{Name: "Created At", Type: "date", Description: swaggerMetadataDescriptions["creationTimestamp"]},
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}
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}
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return &table, nil
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}
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// errNotAcceptable indicates the resource doesn't support Table conversion
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type errNotAcceptable struct {
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resource schema.GroupResource
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}
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func (e errNotAcceptable) Error() string {
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return fmt.Sprintf("the resource %s does not support being converted to a Table", e.resource)
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}
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func (e errNotAcceptable) Status() metav1.Status {
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return metav1.Status{
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Status: metav1.StatusFailure,
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Code: http.StatusNotAcceptable,
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Reason: metav1.StatusReason("NotAcceptable"),
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Message: e.Error(),
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}
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}
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