| /* |
| * Copyright 2014 Open Networking Laboratory |
| * |
| * 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 org.onosproject.cli.net; |
| |
| import org.apache.karaf.shell.commands.Command; |
| import org.onosproject.cli.AbstractShellCommand; |
| import org.onosproject.cluster.Leadership; |
| import org.onosproject.cluster.LeadershipService; |
| |
| import java.util.Map; |
| |
| /** |
| * Prints the leader for every topic. |
| */ |
| @Command(scope = "onos", name = "leaders", |
| description = "Finds the leader for particular topic.") |
| public class LeaderCommand extends AbstractShellCommand { |
| |
| private static final String FMT = "%-20s: %15s"; |
| |
| @Override |
| protected void execute() { |
| LeadershipService leaderService = get(LeadershipService.class); |
| Map<String, Leadership> leaderBoard = leaderService.getLeaderBoard(); |
| print(FMT, "Topic", "Leader"); |
| for (String topic : leaderBoard.keySet()) { |
| print(FMT, topic, leaderBoard.get(topic).leader()); |
| } |
| } |
| |
| } |