| package org.onlab.onos.cli.net; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.google.common.collect.Lists; |
| import org.apache.karaf.shell.commands.Command; |
| import org.onlab.onos.cli.Comparators; |
| import org.onlab.onos.net.topology.TopologyCluster; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * Lists all clusters in the current topology. |
| */ |
| @Command(scope = "onos", name = "clusters", |
| description = "Lists all clusters in the current topology") |
| public class ClustersListCommand extends TopologyCommand { |
| |
| private static final String FMT = |
| "id=%d, devices=%d, links=%d"; |
| |
| @Override |
| protected void execute() { |
| init(); |
| List<TopologyCluster> clusters = Lists.newArrayList(service.getClusters(topology)); |
| Collections.sort(clusters, Comparators.CLUSTER_COMPARATOR); |
| |
| if (outputJson()) { |
| print("%s", json(clusters)); |
| } else { |
| for (TopologyCluster cluster : clusters) { |
| print(FMT, cluster.id().index(), cluster.deviceCount(), cluster.linkCount()); |
| } |
| } |
| } |
| |
| // Produces a JSON result. |
| private JsonNode json(Iterable<TopologyCluster> clusters) { |
| ObjectMapper mapper = new ObjectMapper(); |
| ArrayNode result = mapper.createArrayNode(); |
| for (TopologyCluster cluster : clusters) { |
| result.add(mapper.createObjectNode() |
| .put("id", cluster.id().index()) |
| .put("deviceCount", cluster.deviceCount()) |
| .put("linkCount", cluster.linkCount())); |
| } |
| return result; |
| } |
| |
| } |