| package org.onosproject.distributedprimitives.cli; |
| |
| import org.apache.karaf.shell.commands.Argument; |
| import org.apache.karaf.shell.commands.Command; |
| import org.onosproject.cli.AbstractShellCommand; |
| import org.onosproject.cluster.ClusterService; |
| import org.onosproject.cluster.Leadership; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.store.service.LeaderElector; |
| import org.onosproject.store.service.StorageService; |
| |
| import com.google.common.base.Joiner; |
| |
| @Command(scope = "onos", name = "leader-test", |
| description = "LeaderElector test cli fixture") |
| public class LeaderElectorTestCommand extends AbstractShellCommand { |
| @Argument(index = 0, name = "name", |
| description = "leader elector name", |
| required = true, multiValued = false) |
| String name = null; |
| |
| @Argument(index = 1, name = "operation", |
| description = "operation", |
| required = true, multiValued = false) |
| String operation = null; |
| |
| |
| @Argument(index = 2, name = "topic", |
| description = "topic name", |
| required = false, multiValued = false) |
| String topic = null; |
| |
| LeaderElector leaderElector; |
| |
| @Override |
| protected void execute() { |
| StorageService storageService = get(StorageService.class); |
| ClusterService clusterService = get(ClusterService.class); |
| NodeId localNodeId = clusterService.getLocalNode().id(); |
| leaderElector = storageService.leaderElectorBuilder() |
| .withName(name) |
| .build() |
| .asLeaderElector(); |
| if (operation.equals("run")) { |
| print(leaderElector.run(topic, localNodeId)); |
| } else if (operation.equals("withdraw")) { |
| leaderElector.withdraw(topic); |
| } else if (operation.equals("show")) { |
| print(leaderElector.getLeadership(topic)); |
| } |
| } |
| |
| private void print(Leadership leadership) { |
| if (leadership.leader() != null) { |
| print("leader=%s#term=%d#candidates=%s", |
| leadership.leaderNodeId(), |
| leadership.leader().term(), |
| leadership.candidates().isEmpty() ? "none" : Joiner.on(",").join(leadership.candidates())); |
| } else { |
| print("leader=none#candidates=%s", |
| leadership.candidates().isEmpty() ? "none" : Joiner.on(",").join(leadership.candidates())); |
| } |
| } |
| } |