| /* |
| * Copyright 2019-present Open Networking Foundation |
| * |
| * 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.k8snode.cli; |
| |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Lists; |
| import org.apache.karaf.shell.api.action.Command; |
| import org.apache.karaf.shell.api.action.lifecycle.Service; |
| import org.onosproject.cli.AbstractShellCommand; |
| import org.onosproject.k8snode.api.K8sHost; |
| import org.onosproject.k8snode.api.K8sHostService; |
| import org.onosproject.k8snode.api.K8sTunnelBridge; |
| |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| import static org.onosproject.k8snode.util.K8sNodeUtil.genFormatString; |
| import static org.onosproject.k8snode.util.K8sNodeUtil.prettyJson; |
| |
| /** |
| * Lists all host registered to the service. |
| */ |
| @Service |
| @Command(scope = "onos", name = "k8s-hosts", |
| description = "Lists all hosts registered in kubernetes host service") |
| public class K8sHostListCommand extends AbstractShellCommand { |
| |
| private static final int HOST_IP_LENGTH = 15; |
| private static final int NODES_LENGTH = 40; |
| private static final int TUNBRS_LENGTH = 40; |
| private static final int STATUS_LENGTH = 15; |
| |
| @Override |
| protected void doExecute() { |
| K8sHostService hostService = get(K8sHostService.class); |
| List<K8sHost> hosts = Lists.newArrayList(hostService.hosts()); |
| hosts.sort(Comparator.comparing(K8sHost::hostIp)); |
| |
| String format = genFormatString( |
| ImmutableList.of(HOST_IP_LENGTH, NODES_LENGTH, TUNBRS_LENGTH, STATUS_LENGTH)); |
| |
| if (outputJson()) { |
| print("%s", json(hosts)); |
| } else { |
| print(format, "Host IP", "Nodes", "Tunnel Bridges", "State"); |
| for (K8sHost host : hosts) { |
| print(format, |
| host.hostIp().toString(), |
| host.nodeNames().toString(), |
| host.tunBridges().stream().map(K8sTunnelBridge::name) |
| .collect(Collectors.toSet()).toString(), |
| host.state().toString()); |
| } |
| print("Total %s hosts", hosts.size()); |
| } |
| } |
| |
| private String json(List<K8sHost> hosts) { |
| ObjectMapper mapper = new ObjectMapper(); |
| ArrayNode result = mapper.createArrayNode(); |
| for (K8sHost host: hosts) { |
| result.add(jsonForEntity(host, K8sHost.class)); |
| } |
| return prettyJson(mapper, result.toString()); |
| } |
| } |