Jian Li | daa7d6a | 2021-04-13 17:22:56 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2021-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.kubevirtnetworking.codec; |
| 17 | |
| 18 | import com.fasterxml.jackson.databind.JsonNode; |
| 19 | import com.fasterxml.jackson.databind.node.ArrayNode; |
| 20 | import com.fasterxml.jackson.databind.node.ObjectNode; |
| 21 | import org.onlab.packet.IpAddress; |
| 22 | import org.onosproject.codec.CodecContext; |
| 23 | import org.onosproject.codec.JsonCodec; |
| 24 | import org.onosproject.kubevirtnetworking.api.DefaultKubevirtLoadBalancer; |
| 25 | import org.onosproject.kubevirtnetworking.api.KubevirtLoadBalancer; |
| 26 | import org.onosproject.kubevirtnetworking.api.KubevirtLoadBalancerRule; |
| 27 | import org.slf4j.Logger; |
| 28 | |
| 29 | import java.util.HashSet; |
| 30 | import java.util.Set; |
| 31 | import java.util.stream.IntStream; |
| 32 | |
| 33 | import static com.google.common.base.Preconditions.checkNotNull; |
| 34 | import static org.onlab.util.Tools.nullIsIllegal; |
| 35 | import static org.slf4j.LoggerFactory.getLogger; |
| 36 | |
| 37 | public final class KubevirtLoadBalancerCodec extends JsonCodec<KubevirtLoadBalancer> { |
| 38 | |
| 39 | private final Logger log = getLogger(getClass()); |
| 40 | |
| 41 | private static final String NAME = "name"; |
| 42 | private static final String DESCRIPTION = "description"; |
| 43 | private static final String VIP = "vip"; |
| 44 | private static final String NETWORK_ID = "networkId"; |
| 45 | private static final String MEMBERS = "members"; |
| 46 | private static final String RULES = "rules"; |
| 47 | |
| 48 | private static final String MISSING_MESSAGE = " is required in KubevirtLoadBalancer"; |
| 49 | |
| 50 | @Override |
| 51 | public ObjectNode encode(KubevirtLoadBalancer lb, CodecContext context) { |
| 52 | checkNotNull(lb, "Kubevirt load balancer cannot be null"); |
| 53 | |
| 54 | ObjectNode result = context.mapper().createObjectNode() |
| 55 | .put(NAME, lb.name()) |
| 56 | .put(VIP, lb.vip().toString()) |
| 57 | .put(NETWORK_ID, lb.networkId()); |
| 58 | |
| 59 | if (lb.description() != null) { |
| 60 | result.put(DESCRIPTION, lb.description()); |
| 61 | } |
| 62 | |
| 63 | if (lb.members() != null && !lb.members().isEmpty()) { |
| 64 | ArrayNode members = context.mapper().createArrayNode(); |
| 65 | for (IpAddress ip : lb.members()) { |
| 66 | members.add(ip.toString()); |
| 67 | } |
| 68 | result.set(MEMBERS, members); |
| 69 | } |
| 70 | |
| 71 | if (lb.rules() != null && !lb.rules().isEmpty()) { |
| 72 | ArrayNode rules = context.mapper().createArrayNode(); |
| 73 | for (KubevirtLoadBalancerRule rule : lb.rules()) { |
| 74 | ObjectNode ruleJson = context.codec( |
| 75 | KubevirtLoadBalancerRule.class).encode(rule, context); |
| 76 | rules.add(ruleJson); |
| 77 | } |
| 78 | result.set(RULES, rules); |
| 79 | } |
| 80 | |
| 81 | return result; |
| 82 | } |
| 83 | |
| 84 | @Override |
| 85 | public KubevirtLoadBalancer decode(ObjectNode json, CodecContext context) { |
| 86 | if (json == null || !json.isObject()) { |
| 87 | return null; |
| 88 | } |
| 89 | |
| 90 | String name = nullIsIllegal(json.get(NAME).asText(), NAME + MISSING_MESSAGE); |
| 91 | IpAddress vip = IpAddress.valueOf(nullIsIllegal(json.get(VIP).asText(), |
| 92 | VIP + MISSING_MESSAGE)); |
| 93 | String networkId = nullIsIllegal(json.get(NETWORK_ID).asText(), |
| 94 | NETWORK_ID + MISSING_MESSAGE); |
| 95 | |
| 96 | KubevirtLoadBalancer.Builder builder = DefaultKubevirtLoadBalancer.builder() |
| 97 | .name(name) |
| 98 | .vip(vip) |
| 99 | .networkId(networkId); |
| 100 | |
| 101 | JsonNode description = json.get(DESCRIPTION); |
| 102 | if (description != null) { |
| 103 | builder.description(description.asText()); |
| 104 | } |
| 105 | |
| 106 | ArrayNode membersJson = (ArrayNode) json.get(MEMBERS); |
| 107 | if (membersJson != null) { |
| 108 | Set<IpAddress> members = new HashSet<>(); |
| 109 | for (JsonNode memberJson : membersJson) { |
| 110 | members.add(IpAddress.valueOf(memberJson.asText())); |
| 111 | } |
| 112 | builder.members(members); |
| 113 | } |
| 114 | |
| 115 | JsonNode rulesJson = json.get(RULES); |
| 116 | if (rulesJson != null) { |
| 117 | Set<KubevirtLoadBalancerRule> rules = new HashSet<>(); |
| 118 | IntStream.range(0, rulesJson.size()) |
| 119 | .forEach(i -> { |
| 120 | ObjectNode ruleJson = get(rulesJson, i); |
| 121 | KubevirtLoadBalancerRule rule = context.codec( |
| 122 | KubevirtLoadBalancerRule.class).decode(ruleJson, context); |
| 123 | rules.add(rule); |
| 124 | }); |
| 125 | builder.rules(rules); |
| 126 | } |
| 127 | |
| 128 | return builder.build(); |
| 129 | } |
| 130 | } |