Golang util.FilterResourceList函数代码示例

func Example_printPodHideTerminated() {
	f, tf, _, ns := NewAPIFactory()
	tf.Printer = kubectl.NewHumanReadablePrinter(kubectl.PrintOptions{
		ColumnLabels: []string{},
	})
	tf.Client = &fake.RESTClient{
		NegotiatedSerializer: ns,
		Client:               nil,
	}
	cmd := NewCmdRun(f, os.Stdin, os.Stdout, os.Stderr)
	podList := newAllPhasePodList()
	// filter pods
	filterFuncs := f.DefaultResourceFilterFunc()
	filterOpts := f.DefaultResourceFilterOptions(cmd, false)
	_, filteredPodList, errs := cmdutil.FilterResourceList(podList, filterFuncs, filterOpts)
	if errs != nil {
		fmt.Printf("Unexpected filter error: %v\n", errs)
	}
	for _, pod := range filteredPodList {
		mapper, _ := f.Object()
		err := f.PrintObject(cmd, mapper, pod, os.Stdout)
		if err != nil {
			fmt.Printf("Unexpected error: %v", err)
		}
	}
	// Output:
	// NAME      READY     STATUS    RESTARTS   AGE
	// test1     1/2       Pending   6          10y
	// test2     1/2       Running   6         10y
	// test5     1/2       Unknown   6         10y
}

// RunConvert implements the generic Convert command
func (o *ConvertOptions) RunConvert() error {
	r := o.builder.Do()
	err := r.Err()
	if err != nil {
		return err
	}

	singular := false
	infos, err := r.IntoSingular(&singular).Infos()
	if err != nil {
		return err
	}

	if len(infos) == 0 {
		return fmt.Errorf("no objects passed to convert")
	}

	objects, err := resource.AsVersionedObject(infos, !singular, o.outputVersion, o.encoder)
	if err != nil {
		return err
	}

	if meta.IsListType(objects) {
		_, items, err := cmdutil.FilterResourceList(objects, nil, nil)
		if err != nil {
			return err
		}
		filteredObj, err := cmdutil.ObjectListToVersionedObject(items, o.outputVersion)
		if err != nil {
			return err
		}
		return o.printer.PrintObj(filteredObj, o.out)
	}

	return o.printer.PrintObj(objects, o.out)
}

//.........这里部分代码省略.........
				return err
			}
			errs = append(errs, err)
		}
		if len(infos) == 0 && len(errs) == 0 {
			outputEmptyListWarning(errOut)
		}

		res := ""
		if len(infos) > 0 {
			res = infos[0].ResourceMapping().Resource
		}

		var obj runtime.Object
		if singular {
			obj = infos[0].Object
		} else {
			// we have more than one item, so coerce all items into a list
			list := &runtime.UnstructuredList{
				Object: map[string]interface{}{
					"kind":       "List",
					"apiVersion": "v1",
					"metadata":   map[string]interface{}{},
				},
			}
			for _, info := range infos {
				list.Items = append(list.Items, info.Object.(*runtime.Unstructured))
			}
			obj = list
		}

		isList := meta.IsListType(obj)
		if isList {
			filteredResourceCount, items, err := cmdutil.FilterResourceList(obj, filterFuncs, filterOpts)
			if err != nil {
				return err
			}

			// take the filtered items and create a new list for display
			list := &runtime.UnstructuredList{
				Object: map[string]interface{}{
					"kind":       "List",
					"apiVersion": "v1",
					"metadata":   map[string]interface{}{},
				},
			}
			if listMeta, err := meta.ListAccessor(obj); err == nil {
				list.Object["selfLink"] = listMeta.GetSelfLink()
				list.Object["resourceVersion"] = listMeta.GetResourceVersion()
			}

			for _, item := range items {
				list.Items = append(list.Items, item.(*runtime.Unstructured))
			}
			if err := printer.PrintObj(list, out); err != nil {
				errs = append(errs, err)
			}

			cmdutil.PrintFilterCount(filteredResourceCount, res, filterOpts)
			return utilerrors.Reduce(utilerrors.Flatten(utilerrors.NewAggregate(errs)))
		}

		filteredResourceCount := 0
		if isFiltered, err := filterFuncs.Filter(obj, filterOpts); !isFiltered {
			if err != nil {
				glog.V(2).Infof("Unable to filter resource: %v", err)

//.........这里部分代码省略.........
		if err != nil {
			return err
		}

		// the outermost object will be converted to the output-version, but inner
		// objects can use their mappings
		version, err := cmdutil.OutputVersion(cmd, clientConfig.GroupVersion)
		if err != nil {
			return err
		}

		var errs []error
		singular := false
		infos, err := r.IntoSingular(&singular).Infos()
		if err != nil {
			if singular {
				return err
			}
			errs = append(errs, err)
		}

		res := ""
		if len(infos) > 0 {
			res = infos[0].ResourceMapping().Resource
		}

		obj, err := resource.AsVersionedObject(infos, !singular, version, f.JSONEncoder())
		if err != nil {
			return err
		}

		isList := meta.IsListType(obj)
		if isList {
			filteredResourceCount, items, err := cmdutil.FilterResourceList(obj, filterFuncs, filterOpts)
			if err != nil {
				return err
			}
			filteredObj, err := cmdutil.ObjectListToVersionedObject(items, version)
			if err != nil {
				return err
			}
			if err := printer.PrintObj(filteredObj, out); err != nil {
				errs = append(errs, err)
			}

			cmdutil.PrintFilterCount(filteredResourceCount, res, errOut, filterOpts)
			return utilerrors.Reduce(utilerrors.Flatten(utilerrors.NewAggregate(errs)))
		}

		filteredResourceCount := 0
		if isFiltered, err := filterFuncs.Filter(obj, filterOpts); !isFiltered {
			if err != nil {
				glog.V(2).Infof("Unable to filter resource: %v", err)
			} else if err := printer.PrintObj(obj, out); err != nil {
				errs = append(errs, err)
			}
		} else if isFiltered {
			filteredResourceCount++
		}

		cmdutil.PrintFilterCount(filteredResourceCount, res, errOut, filterOpts)
		return utilerrors.Reduce(utilerrors.Flatten(utilerrors.NewAggregate(errs)))
	}

	allErrs := []error{}
	infos, err := r.Infos()