| /* |
| * Copyright 2016-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.codec.impl; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.MacAddress; |
| import org.onlab.packet.VlanId; |
| import org.onosproject.codec.CodecContext; |
| import org.onosproject.codec.JsonCodec; |
| import org.onosproject.incubator.net.virtual.DefaultVirtualHost; |
| import org.onosproject.incubator.net.virtual.NetworkId; |
| import org.onosproject.incubator.net.virtual.VirtualHost; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.HostId; |
| import org.onosproject.net.HostLocation; |
| import org.onosproject.net.PortNumber; |
| |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Set; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onlab.util.Tools.nullIsIllegal; |
| |
| /** |
| * Codec for the VirtualHost class. |
| */ |
| public class VirtualHostCodec extends JsonCodec<VirtualHost> { |
| |
| // JSON field names |
| static final String NETWORK_ID = "networkId"; |
| static final String HOST_ID = "id"; |
| static final String MAC_ADDRESS = "mac"; |
| static final String VLAN = "vlan"; |
| static final String IP_ADDRESSES = "ipAddresses"; |
| static final String HOST_LOCATION = "locations"; |
| |
| private static final String NULL_OBJECT_MSG = "VirtualHost cannot be null"; |
| private static final String MISSING_MEMBER_MSG = " member is required in VirtualHost"; |
| |
| @Override |
| public ObjectNode encode(VirtualHost vHost, CodecContext context) { |
| checkNotNull(vHost, NULL_OBJECT_MSG); |
| |
| final JsonCodec<HostLocation> locationCodec = |
| context.codec(HostLocation.class); |
| final ObjectNode result = context.mapper().createObjectNode() |
| .put(NETWORK_ID, vHost.networkId().toString()) |
| .put(HOST_ID, vHost.id().toString()) |
| .put(MAC_ADDRESS, vHost.mac().toString()) |
| .put(VLAN, vHost.vlan().toString()); |
| |
| final ArrayNode jsonIpAddresses = result.putArray(IP_ADDRESSES); |
| for (final IpAddress ipAddress : vHost.ipAddresses()) { |
| jsonIpAddresses.add(ipAddress.toString()); |
| } |
| result.set(IP_ADDRESSES, jsonIpAddresses); |
| |
| final ArrayNode jsonLocations = result.putArray("locations"); |
| for (final HostLocation location : vHost.locations()) { |
| jsonLocations.add(locationCodec.encode(location, context)); |
| } |
| result.set("locations", jsonLocations); |
| |
| return result; |
| } |
| |
| @Override |
| public VirtualHost decode(ObjectNode json, CodecContext context) { |
| if (json == null || !json.isObject()) { |
| return null; |
| } |
| |
| NetworkId nId = NetworkId.networkId(Long.parseLong(extractMember(NETWORK_ID, json))); |
| MacAddress mac = MacAddress.valueOf(json.get("mac").asText()); |
| VlanId vlanId = VlanId.vlanId((short) json.get("vlan").asInt(VlanId.UNTAGGED)); |
| |
| Set<HostLocation> locations = new HashSet<>(); |
| JsonNode locationNodes = json.get("locations"); |
| locationNodes.forEach(locationNode -> { |
| PortNumber portNumber = PortNumber.portNumber(locationNode.get("port").asText()); |
| DeviceId deviceId = DeviceId.deviceId(locationNode.get("elementId").asText()); |
| locations.add(new HostLocation(deviceId, portNumber, 0)); |
| }); |
| |
| HostId id = HostId.hostId(mac, vlanId); |
| |
| Iterator<JsonNode> ipStrings = json.get("ipAddresses").elements(); |
| Set<IpAddress> ips = new HashSet<>(); |
| while (ipStrings.hasNext()) { |
| ips.add(IpAddress.valueOf(ipStrings.next().asText())); |
| } |
| |
| return new DefaultVirtualHost(nId, id, mac, vlanId, locations, ips); |
| } |
| |
| /** |
| * Extract member from JSON ObjectNode. |
| * |
| * @param key key for which value is needed |
| * @param json JSON ObjectNode |
| * @return member value |
| */ |
| private String extractMember(String key, ObjectNode json) { |
| return nullIsIllegal(json.get(key), key + MISSING_MEMBER_MSG).asText(); |
| } |
| } |