*: remove MemberLeader API in client side (fix examples)

clientv3/example_maintenence_test.go

@@ -0,0 +1,51 @@
+// Copyright 2016 CoreOS, Inc.
+//
+// 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 clientv3_test
+
+import (
+	"fmt"
+	"log"
+
+	"golang.org/x/net/context"
+
+	"github.com/coreos/etcd/clientv3"
+)
+
+func ExampleMaintenance_Status() {
+	for _, ep := range endpoints {
+		cli, err := clientv3.New(clientv3.Config{
+			Endpoints:   []string{ep},
+			DialTimeout: dialTimeout,
+		})
+		if err != nil {
+			log.Fatal(err)
+		}
+		defer cli.Close()
+
+		// resp, err := cli.Status(context.Background(), ep)
+		//
+		// or
+		//
+		mapi := clientv3.NewMaintenance(cli)
+		resp, err := mapi.Status(context.Background(), ep)
+		if err != nil {
+			log.Fatal(err)
+		}
+		fmt.Printf("endpoint: %s / IsLeader: %v\n", ep, resp.Header.MemberId == resp.Leader)
+	}
+	// endpoint: localhost:2379 / IsLeader: false
+	// endpoint: localhost:22379 / IsLeader: false
+	// endpoint: localhost:32379 / IsLeader: true
+}