| /* |
| * Copyright 2015-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.node.ObjectNode; |
| |
| import org.onosproject.codec.CodecContext; |
| import org.onosproject.codec.JsonCodec; |
| import org.onosproject.net.Annotations; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.DefaultLink; |
| import org.onosproject.net.Link; |
| import org.onosproject.net.Link.Type; |
| import org.onosproject.net.provider.ProviderId; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Link JSON codec. |
| */ |
| public final class LinkCodec extends AnnotatedCodec<Link> { |
| |
| // JSON field names |
| private static final String SRC = "src"; |
| private static final String DST = "dst"; |
| private static final String TYPE = "type"; |
| private static final String STATE = "state"; |
| |
| @Override |
| public ObjectNode encode(Link link, CodecContext context) { |
| checkNotNull(link, "Link cannot be null"); |
| JsonCodec<ConnectPoint> codec = context.codec(ConnectPoint.class); |
| ObjectNode result = context.mapper().createObjectNode(); |
| result.set(SRC, codec.encode(link.src(), context)); |
| result.set(DST, codec.encode(link.dst(), context)); |
| result.put(TYPE, link.type().toString()); |
| if (link.state() != null) { |
| result.put(STATE, link.state().toString()); |
| } |
| return annotate(result, link, context); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| * |
| * Note: ProviderId is not part of JSON representation. |
| * Returned object will have random ProviderId set. |
| */ |
| @Override |
| public Link decode(ObjectNode json, CodecContext context) { |
| if (json == null || !json.isObject()) { |
| return null; |
| } |
| |
| JsonCodec<ConnectPoint> codec = context.codec(ConnectPoint.class); |
| // TODO: add providerId to JSON if we need to recover them. |
| ProviderId pid = new ProviderId("json", "LinkCodec"); |
| |
| ConnectPoint src = codec.decode(get(json, SRC), context); |
| ConnectPoint dst = codec.decode(get(json, DST), context); |
| Type type = Type.valueOf(json.get(TYPE).asText()); |
| Annotations annotations = extractAnnotations(json, context); |
| |
| return DefaultLink |
| .builder() |
| .providerId(pid) |
| .src(src) |
| .dst(dst) |
| .type(type) |
| .annotations(annotations) |
| .build(); |
| } |
| } |