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/*
* Copyright 2014-2015 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.election.cli;
import org.onosproject.cluster.NodeId;
import org.apache.karaf.shell.commands.Command;
import org.onosproject.cli.AbstractShellCommand;
import org.onosproject.cluster.LeadershipService;
/**
* CLI command to get the current leader for the Election test application.
*/
@Command(scope = "onos", name = "election-test-leader",
description = "Get the current leader for the Election test application")
public class ElectionTestLeaderCommand extends AbstractShellCommand {
private NodeId leader;
private static final String ELECTION_APP = "org.onosproject.election";
@Override
protected void execute() {
LeadershipService service = get(LeadershipService.class);
//print the current leader
leader = service.getLeader(ELECTION_APP);
printLeader(leader);
}
/**
* Prints the leader.
*
* @param leader the leader to print
*/
private void printLeader(NodeId leader) {
if (leader != null) {
print("The current leader for the Election app is %s.", leader);
} else {
print("There is currently no leader elected for the Election app");
}
}
}
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