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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
package whisk
import (
type Namespace struct {
Name string `json:"name"`
type NamespaceService struct {
client *Client
// Compare(sortable) compares namespace to sortable for the purpose of sorting.
// REQUIRED: sortable must also be of type Namespace.
// ***Method of type Sortable***
func (namespace Namespace) Compare(sortable Sortable) bool {
// Sorts alphabetically
namespaceToCompare := sortable.(Namespace)
var namespaceString string
var compareString string
namespaceString = strings.ToLower(namespace.Name)
compareString = strings.ToLower(namespaceToCompare.Name)
return namespaceString < compareString
// ToHeaderString() returns the header for a list of namespaces
func (namespace Namespace) ToHeaderString() string {
return fmt.Sprintf("%s\n", "namespaces")
// ToSummaryRowString() returns a compound string of required parameters for printing
// from CLI command `wsk namespace list`.
// ***Method of type Sortable***
func (namespace Namespace) ToSummaryRowString() string {
return fmt.Sprintf("%s\n", namespace.Name)
// get a list of available namespaces
func (s *NamespaceService) List() ([]Namespace, *http.Response, error) {
// make a request to c.BaseURL / namespaces
// Create the request against the namespaces resource
s.client.Config.Namespace = ""
route := ""
req, err := s.client.NewRequest("GET", route, nil, IncludeNamespaceInUrl)
if err != nil {
Debug(DbgError, "s.client.NewRequest(GET) error: %s\n", err)
errStr := wski18n.T("Unable to create HTTP request for GET: {{.err}}",
map[string]interface{}{"err": err})
werr := MakeWskErrorFromWskError(errors.New(errStr), err, EXIT_CODE_ERR_GENERAL, DISPLAY_MSG, NO_DISPLAY_USAGE)
return nil, nil, werr
var namespaceNames []string
resp, err := s.client.Do(req, &namespaceNames, ExitWithSuccessOnTimeout)
if err != nil {
Debug(DbgError, "s.client.Do() error - HTTP req %s; error '%s'\n", req.URL.String(), err)
return nil, resp, err
var namespaces []Namespace
for _, nsName := range namespaceNames {
ns := Namespace{
Name: nsName,
namespaces = append(namespaces, ns)
Debug(DbgInfo, "Returning []namespaces: %#v\n", namespaces)
return namespaces, resp, nil