| /* |
| * Copyright 2014-2015 Open Networking Laboratory |
| * |
| * 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 java.util.stream.IntStream; |
| |
| import org.onosproject.codec.CodecContext; |
| import org.onosproject.codec.JsonCodec; |
| import org.onosproject.net.flow.DefaultTrafficSelector; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.flow.criteria.Criterion; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Traffic selector codec. |
| */ |
| public final class TrafficSelectorCodec extends JsonCodec<TrafficSelector> { |
| private static final String CRITERIA = "criteria"; |
| |
| @Override |
| public ObjectNode encode(TrafficSelector selector, CodecContext context) { |
| checkNotNull(selector, "Traffic selector cannot be null"); |
| |
| final ObjectNode result = context.mapper().createObjectNode(); |
| final ArrayNode jsonCriteria = result.putArray(CRITERIA); |
| |
| if (selector.criteria() != null) { |
| final JsonCodec<Criterion> criterionCodec = |
| context.codec(Criterion.class); |
| for (final Criterion criterion : selector.criteria()) { |
| jsonCriteria.add(criterionCodec.encode(criterion, context)); |
| } |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public TrafficSelector decode(ObjectNode json, CodecContext context) { |
| final JsonCodec<Criterion> criterionCodec = |
| context.codec(Criterion.class); |
| |
| JsonNode criteriaJson = json.get(CRITERIA); |
| TrafficSelector.Builder builder = DefaultTrafficSelector.builder(); |
| if (criteriaJson != null) { |
| IntStream.range(0, criteriaJson.size()) |
| .forEach(i -> builder.add( |
| criterionCodec.decode(get(criteriaJson, i), |
| context))); |
| } |
| return builder.build(); |
| } |
| } |