| /* |
| * Copyright 2017-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.mapping.codec; |
| |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import com.google.common.collect.Maps; |
| import org.onlab.packet.IpPrefix; |
| import org.onlab.packet.MacAddress; |
| import org.onosproject.mapping.addresses.MappingAddress; |
| import org.onosproject.mapping.addresses.MappingAddresses; |
| |
| import java.util.Map; |
| |
| import static org.onlab.util.Tools.nullIsIllegal; |
| |
| /** |
| * Decode portion of the mapping address codec. |
| */ |
| public final class DecodeMappingAddressCodecHelper { |
| |
| private final ObjectNode json; |
| |
| protected static final String MISSING_MEMBER_MESSAGE = |
| " member is required in Mapping Address"; |
| |
| private final Map<String, MappingAddressDecoder> decoderMap; |
| |
| /** |
| * Creates a decode mapping address codec object. |
| * Initializes the lookup map for mapping address subclass decoders. |
| * |
| * @param json JSON object to decode |
| */ |
| public DecodeMappingAddressCodecHelper(ObjectNode json) { |
| this.json = json; |
| decoderMap = Maps.newHashMap(); |
| |
| decoderMap.put(MappingAddress.Type.IPV4.name(), new Ipv4TypeDecoder()); |
| decoderMap.put(MappingAddress.Type.IPV6.name(), new Ipv6TypeDecoder()); |
| decoderMap.put(MappingAddress.Type.AS.name(), new AsTypeDecoder()); |
| decoderMap.put(MappingAddress.Type.DN.name(), new DnTypeDecoder()); |
| decoderMap.put(MappingAddress.Type.ETH.name(), new EthTypeDecoder()); |
| } |
| |
| /** |
| * An interface of mapping address type decoder. |
| */ |
| private interface MappingAddressDecoder { |
| MappingAddress decodeMappingAddress(ObjectNode json); |
| } |
| |
| /** |
| * Implementation of IPv4 mapping address decoder. |
| */ |
| private class Ipv4TypeDecoder implements MappingAddressDecoder { |
| |
| @Override |
| public MappingAddress decodeMappingAddress(ObjectNode json) { |
| String ip = nullIsIllegal(json.get(MappingAddressCodec.IPV4), |
| MappingAddressCodec.IPV4 + MISSING_MEMBER_MESSAGE).asText(); |
| return MappingAddresses.ipv4MappingAddress(IpPrefix.valueOf(ip)); |
| } |
| } |
| |
| /** |
| * Implementation of IPv6 mapping address decoder. |
| */ |
| private class Ipv6TypeDecoder implements MappingAddressDecoder { |
| |
| @Override |
| public MappingAddress decodeMappingAddress(ObjectNode json) { |
| String ip = nullIsIllegal(json.get(MappingAddressCodec.IPV6), |
| MappingAddressCodec.IPV6 + MISSING_MEMBER_MESSAGE).asText(); |
| return MappingAddresses.ipv6MappingAddress(IpPrefix.valueOf(ip)); |
| } |
| } |
| |
| /** |
| * Implementation of AS mapping address decoder. |
| */ |
| private class AsTypeDecoder implements MappingAddressDecoder { |
| |
| @Override |
| public MappingAddress decodeMappingAddress(ObjectNode json) { |
| String as = nullIsIllegal(json.get(MappingAddressCodec.AS), |
| MappingAddressCodec.AS + MISSING_MEMBER_MESSAGE).asText(); |
| return MappingAddresses.asMappingAddress(as); |
| } |
| } |
| |
| /** |
| * Implementation of DN mapping address decoder. |
| */ |
| private class DnTypeDecoder implements MappingAddressDecoder { |
| |
| @Override |
| public MappingAddress decodeMappingAddress(ObjectNode json) { |
| String dn = nullIsIllegal(json.get(MappingAddressCodec.DN), |
| MappingAddressCodec.DN + MISSING_MEMBER_MESSAGE).asText(); |
| return MappingAddresses.dnMappingAddress(dn); |
| } |
| } |
| |
| /** |
| * Implementation of Ethernet mapping address decoder. |
| */ |
| private class EthTypeDecoder implements MappingAddressDecoder { |
| |
| @Override |
| public MappingAddress decodeMappingAddress(ObjectNode json) { |
| MacAddress mac = MacAddress.valueOf(nullIsIllegal(json.get(MappingAddressCodec.MAC), |
| MappingAddressCodec.MAC + MISSING_MEMBER_MESSAGE).asText()); |
| return MappingAddresses.ethMappingAddress(mac); |
| } |
| } |
| |
| /** |
| * Decodes the JSON into a mapping address object. |
| * |
| * @return MappingAddress object |
| * @throws IllegalArgumentException if the JSON is invalid |
| */ |
| public MappingAddress decode() { |
| String type = |
| nullIsIllegal(json.get(MappingAddressCodec.TYPE), |
| "Type not specified").asText(); |
| |
| MappingAddressDecoder decoder = decoderMap.get(type); |
| if (decoder != null) { |
| return decoder.decodeMappingAddress(json); |
| } |
| |
| throw new IllegalArgumentException("Type " + type + " is unknown"); |
| } |
| } |