| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.onlab.onos.cli; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import org.apache.karaf.shell.commands.Command; |
| import org.onlab.onos.cluster.ClusterService; |
| import org.onlab.onos.cluster.ControllerNode; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| import static com.google.common.collect.Lists.newArrayList; |
| |
| /** |
| * Lists all controller cluster nodes. |
| */ |
| @Command(scope = "onos", name = "nodes", |
| description = "Lists all controller cluster nodes") |
| public class NodesListCommand extends AbstractShellCommand { |
| |
| private static final String FMT = |
| "id=%s, address=%s:%s, state=%s %s"; |
| |
| @Override |
| protected void execute() { |
| ClusterService service = get(ClusterService.class); |
| List<ControllerNode> nodes = newArrayList(service.getNodes()); |
| Collections.sort(nodes, Comparators.NODE_COMPARATOR); |
| if (outputJson()) { |
| print("%s", json(service, nodes)); |
| } else { |
| ControllerNode self = service.getLocalNode(); |
| for (ControllerNode node : nodes) { |
| print(FMT, node.id(), node.ip(), node.tcpPort(), |
| service.getState(node.id()), |
| node.equals(self) ? "*" : ""); |
| } |
| } |
| } |
| |
| // Produces JSON structure. |
| private JsonNode json(ClusterService service, List<ControllerNode> nodes) { |
| ObjectMapper mapper = new ObjectMapper(); |
| ArrayNode result = mapper.createArrayNode(); |
| ControllerNode self = service.getLocalNode(); |
| for (ControllerNode node : nodes) { |
| result.add(mapper.createObjectNode() |
| .put("id", node.id().toString()) |
| .put("ip", node.ip().toString()) |
| .put("tcpPort", node.tcpPort()) |
| .put("state", service.getState(node.id()).toString()) |
| .put("self", node.equals(self))); |
| } |
| return result; |
| } |
| |
| } |