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client: MembersAPI.List
This commit is contained in:
Brian Waldon
parent
00dcbf8bf7
commit
cba19e348f
155
client/members.go
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155
client/members.go
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/*
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Copyright 2014 CoreOS, Inc.
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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 client
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"net/url"
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"path"
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"time"
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)
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var (
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DefaultV2MembersPrefix = "/v2/admin/members"
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)
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func NewMembersAPI(tr *http.Transport, ep string, to time.Duration) (MembersAPI, error) {
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u, err := url.Parse(ep)
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if err != nil {
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return nil, err
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}
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u.Path = path.Join(u.Path, DefaultV2MembersPrefix)
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c := &httpClient{
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transport: tr,
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endpoint: *u,
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timeout: to,
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}
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mAPI := httpMembersAPI{
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client: c,
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}
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return &mAPI, nil
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}
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type MembersAPI interface {
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List() ([]Member, error)
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}
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type Member struct {
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ID uint64
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Name string
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PeerURLs []url.URL
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ClientURLs []url.URL
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}
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func (m *Member) UnmarshalJSON(data []byte) (err error) {
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rm := struct {
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ID uint64
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Name string
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PeerURLs []string
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ClientURLs []string
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}{}
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if err := json.Unmarshal(data, &rm); err != nil {
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return err
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}
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parseURLs := func(strs []string) ([]url.URL, error) {
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urls := make([]url.URL, len(strs))
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for i, s := range strs {
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u, err := url.Parse(s)
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if err != nil {
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return nil, err
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}
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urls[i] = *u
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}
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return urls, nil
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}
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if m.PeerURLs, err = parseURLs(rm.PeerURLs); err != nil {
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return err
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}
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if m.ClientURLs, err = parseURLs(rm.ClientURLs); err != nil {
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return err
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}
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m.ID = rm.ID
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m.Name = rm.Name
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return nil
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}
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type membersCollection struct {
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Members []Member
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}
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type httpMembersAPI struct {
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client *httpClient
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}
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func (m *httpMembersAPI) List() ([]Member, error) {
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httpresp, body, err := m.client.doWithTimeout(&membersAPIActionList{})
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if err != nil {
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return nil, err
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}
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mResponse := httpMembersAPIResponse{
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code: httpresp.StatusCode,
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body: body,
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}
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if err = mResponse.err(); err != nil {
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return nil, err
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}
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var mCollection membersCollection
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if err = mResponse.unmarshalBody(&mCollection); err != nil {
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return nil, err
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}
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return mCollection.Members, nil
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}
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type httpMembersAPIResponse struct {
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code int
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body []byte
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}
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func (r *httpMembersAPIResponse) err() (err error) {
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if r.code != http.StatusOK {
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err = fmt.Errorf("unrecognized status code %d", r.code)
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}
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return
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}
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func (r *httpMembersAPIResponse) unmarshalBody(dst interface{}) (err error) {
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return json.Unmarshal(r.body, dst)
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}
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type membersAPIActionList struct{}
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func (l *membersAPIActionList) httpRequest(ep url.URL) *http.Request {
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req, _ := http.NewRequest("GET", ep.String(), nil)
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return req
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}
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168
client/members_test.go
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168
client/members_test.go
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@ -0,0 +1,168 @@
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/*
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Copyright 2014 CoreOS, Inc.
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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 client
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import (
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"encoding/json"
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"net/http"
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"net/url"
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"reflect"
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"testing"
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)
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func TestMembersAPIListAction(t *testing.T) {
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ep := url.URL{Scheme: "http", Host: "example.com/v2/admin/members"}
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wantURL := &url.URL{
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Scheme: "http",
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Host: "example.com",
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Path: "/v2/admin/members",
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}
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act := &membersAPIActionList{}
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got := *act.httpRequest(ep)
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err := assertResponse(got, wantURL, http.Header{}, nil)
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if err != nil {
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t.Errorf(err.Error())
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}
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}
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func TestMembersAPIUnmarshalMember(t *testing.T) {
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tests := []struct {
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body []byte
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wantMember Member
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wantError bool
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}{
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// no URLs, just check ID & Name
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{
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body: []byte(`{"id": 1, "name": "dungarees"}`),
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wantMember: Member{ID: 1, Name: "dungarees", PeerURLs: []url.URL{}, ClientURLs: []url.URL{}},
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},
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// both client and peer URLs
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{
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body: []byte(`{"peerURLs": ["http://127.0.0.1:4001"], "clientURLs": ["http://127.0.0.1:4001"]}`),
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wantMember: Member{
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PeerURLs: []url.URL{
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{Scheme: "http", Host: "127.0.0.1:4001"},
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},
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ClientURLs: []url.URL{
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{Scheme: "http", Host: "127.0.0.1:4001"},
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},
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},
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},
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// multiple peer URLs
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{
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body: []byte(`{"peerURLs": ["http://127.0.0.1:4001", "https://example.com"]}`),
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wantMember: Member{
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PeerURLs: []url.URL{
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{Scheme: "http", Host: "127.0.0.1:4001"},
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{Scheme: "https", Host: "example.com"},
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},
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ClientURLs: []url.URL{},
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},
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},
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// multiple client URLs
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{
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body: []byte(`{"clientURLs": ["http://127.0.0.1:4001", "https://example.com"]}`),
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wantMember: Member{
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PeerURLs: []url.URL{},
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ClientURLs: []url.URL{
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{Scheme: "http", Host: "127.0.0.1:4001"},
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{Scheme: "https", Host: "example.com"},
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},
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},
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},
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// invalid JSON
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{
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body: []byte(`{"peerU`),
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wantError: true,
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},
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// valid JSON, invalid URL
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{
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body: []byte(`{"peerURLs": [":"]}`),
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wantError: true,
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},
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}
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for i, tt := range tests {
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got := Member{}
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err := json.Unmarshal(tt.body, &got)
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if tt.wantError != (err != nil) {
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t.Errorf("#%d: want error %t, got %v", i, tt.wantError, err)
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continue
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}
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if !reflect.DeepEqual(tt.wantMember, got) {
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t.Errorf("#%d: incorrect output: want=%#v, got=%#v", i, tt.wantMember, got)
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}
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}
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}
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func TestMembersAPIUnmarshalMembers(t *testing.T) {
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body := []byte(`{"members":[{"id":176869799018424574,"peerURLs":["http://127.0.0.1:7003"],"name":"node3","clientURLs":["http://127.0.0.1:4003"]},{"id":297577273835923749,"peerURLs":["http://127.0.0.1:2380","http://127.0.0.1:7001"],"name":"node1","clientURLs":["http://127.0.0.1:2379","http://127.0.0.1:4001"]},{"id":10666918107976480891,"peerURLs":["http://127.0.0.1:7002"],"name":"node2","clientURLs":["http://127.0.0.1:4002"]}]}`)
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want := membersCollection{
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Members: []Member{
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{
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ID: 176869799018424574,
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Name: "node3",
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PeerURLs: []url.URL{
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{Scheme: "http", Host: "127.0.0.1:7003"},
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},
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ClientURLs: []url.URL{
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{Scheme: "http", Host: "127.0.0.1:4003"},
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},
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},
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{
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ID: 297577273835923749,
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Name: "node1",
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PeerURLs: []url.URL{
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{Scheme: "http", Host: "127.0.0.1:2380"},
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{Scheme: "http", Host: "127.0.0.1:7001"},
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},
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ClientURLs: []url.URL{
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{Scheme: "http", Host: "127.0.0.1:2379"},
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{Scheme: "http", Host: "127.0.0.1:4001"},
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},
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},
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{
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ID: 10666918107976480891,
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Name: "node2",
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PeerURLs: []url.URL{
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{Scheme: "http", Host: "127.0.0.1:7002"},
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},
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ClientURLs: []url.URL{
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{Scheme: "http", Host: "127.0.0.1:4002"},
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},
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},
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},
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}
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got := membersCollection{}
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err := json.Unmarshal(body, &got)
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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if !reflect.DeepEqual(want, got) {
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t.Errorf("Incorrect output: want=%#v, got=%#v", want, got)
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}
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}
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