| /* |
| Copyright 2018 The Kubernetes Authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package table |
| |
| import ( |
| "time" |
| |
| "k8s.io/apimachinery/pkg/api/meta" |
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| metav1beta1 "k8s.io/apimachinery/pkg/apis/meta/v1beta1" |
| "k8s.io/apimachinery/pkg/runtime" |
| "k8s.io/apimachinery/pkg/util/duration" |
| ) |
| |
| // MetaToTableRow converts a list or object into one or more table rows. The provided rowFn is invoked for |
| // each accessed item, with name and age being passed to each. |
| func MetaToTableRow(obj runtime.Object, rowFn func(obj runtime.Object, m metav1.Object, name, age string) ([]interface{}, error)) ([]metav1beta1.TableRow, error) { |
| if meta.IsListType(obj) { |
| rows := make([]metav1beta1.TableRow, 0, 16) |
| err := meta.EachListItem(obj, func(obj runtime.Object) error { |
| nestedRows, err := MetaToTableRow(obj, rowFn) |
| if err != nil { |
| return err |
| } |
| rows = append(rows, nestedRows...) |
| return nil |
| }) |
| if err != nil { |
| return nil, err |
| } |
| return rows, nil |
| } |
| |
| rows := make([]metav1beta1.TableRow, 0, 1) |
| m, err := meta.Accessor(obj) |
| if err != nil { |
| return nil, err |
| } |
| row := metav1beta1.TableRow{ |
| Object: runtime.RawExtension{Object: obj}, |
| } |
| row.Cells, err = rowFn(obj, m, m.GetName(), ConvertToHumanReadableDateType(m.GetCreationTimestamp())) |
| if err != nil { |
| return nil, err |
| } |
| rows = append(rows, row) |
| return rows, nil |
| } |
| |
| // ConvertToHumanReadableDateType returns the elapsed time since timestamp in |
| // human-readable approximation. |
| func ConvertToHumanReadableDateType(timestamp metav1.Time) string { |
| if timestamp.IsZero() { |
| return "<unknown>" |
| } |
| return duration.ShortHumanDuration(time.Now().Sub(timestamp.Time)) |
| } |