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Merge pull request #102991 from soltysh/column_printer

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Extract columnPrinter interface for printing the values behind additional columns
This commit is contained in:
Kubernetes Prow Robot 2021-06-18 07:20:19 -07:00 committed by GitHub
commit eda1298c47
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2 changed files with 12 additions and 6 deletions
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8
staging/src/k8s.io/apiextensions-apiserver/pkg/registry/customresource/tableconvertor/tableconvertor.go
View File

@ -21,6 +21,7 @@ import (
"context"
"encoding/json"
"fmt"
"io"
"reflect"
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
@ -69,9 +70,14 @@ func New(crdColumns []apiextensionsv1.CustomResourceColumnDefinition) (rest.Tabl
return c, nil
}
type columnPrinter interface {
FindResults(data interface{}) ([][]reflect.Value, error)
PrintResults(w io.Writer, results []reflect.Value) error
}
type convertor struct {
headers []metav1.TableColumnDefinition
additionalColumns []*jsonpath.JSONPath
additionalColumns []columnPrinter
}
func (c *convertor) ConvertToTable(ctx context.Context, obj runtime.Object, tableOptions runtime.Object) (*metav1.Table, error) {

10
staging/src/k8s.io/apiextensions-apiserver/pkg/registry/customresource/tableconvertor/tableconvertor_test.go
View File

@ -78,7 +78,7 @@ func Test_cellForJSONValue(t *testing.T) {
func Test_convertor_ConvertToTable(t *testing.T) {
type fields struct {
headers []metav1.TableColumnDefinition
additionalColumns []*jsonpath.JSONPath
additionalColumns []columnPrinter
}
type args struct {
ctx context.Context
@ -212,7 +212,7 @@ func Test_convertor_ConvertToTable(t *testing.T) {
{Name: "single2", Type: "string"},
{Name: "multi", Type: "string"},
},
additionalColumns: []*jsonpath.JSONPath{
additionalColumns: []columnPrinter{
newJSONPath("valueOnly", "{.spec.servers[0].hosts[0]}"),
newJSONPath("single1", "{.spec.servers[0].hosts}"),
newJSONPath("single2", "{.spec.servers[1].hosts}"),
@ -285,7 +285,7 @@ func Test_convertor_ConvertToTable(t *testing.T) {
{Name: "single2", Type: "string"},
{Name: "multi", Type: "string"},
},
additionalColumns: []*jsonpath.JSONPath{
additionalColumns: []columnPrinter{
newJSONPath("valueOnly", "{.spec.foo[0].bar[0]}"),
newJSONPath("single1", "{.spec.foo[0].bar}"),
newJSONPath("single2", "{.spec.foo[1].bar}"),
@ -358,7 +358,7 @@ func Test_convertor_ConvertToTable(t *testing.T) {
{Name: "single2", Type: "integer"},
{Name: "multi", Type: "integer"},
},
additionalColumns: []*jsonpath.JSONPath{
additionalColumns: []columnPrinter{
newJSONPath("valueOnly", "{.spec.foo[0].bar[0]}"),
newJSONPath("single1", "{.spec.foo[0].bar}"),
newJSONPath("single2", "{.spec.foo[1].bar}"),
@ -440,7 +440,7 @@ func Test_convertor_ConvertToTable(t *testing.T) {
}
}
func newJSONPath(name string, jsonPathExpression string) *jsonpath.JSONPath {
func newJSONPath(name string, jsonPathExpression string) columnPrinter {
jp := jsonpath.New(name)
_ = jp.Parse(jsonPathExpression)
return jp