| /* |
| * 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.JsonNode; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import org.onosproject.codec.CodecContext; |
| import org.onosproject.codec.JsonCodec; |
| import org.onosproject.net.flow.DefaultTrafficTreatment; |
| import org.onosproject.net.flow.TrafficTreatment; |
| import org.onosproject.net.flow.instructions.Instruction; |
| import org.onosproject.net.flow.instructions.Instructions; |
| |
| import java.util.stream.IntStream; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Traffic treatment codec. |
| */ |
| public final class TrafficTreatmentCodec extends JsonCodec<TrafficTreatment> { |
| private static final String INSTRUCTIONS = "instructions"; |
| private static final String DEFERRED = "deferred"; |
| private static final String CLEAR_DEFERRED = "clearDeferred"; |
| |
| @Override |
| public ObjectNode encode(TrafficTreatment treatment, CodecContext context) { |
| checkNotNull(treatment, "Traffic treatment cannot be null"); |
| |
| final ObjectNode result = context.mapper().createObjectNode(); |
| final ArrayNode jsonInstructions = result.putArray(INSTRUCTIONS); |
| |
| final JsonCodec<Instruction> instructionCodec = |
| context.codec(Instruction.class); |
| |
| for (final Instruction instruction : treatment.immediate()) { |
| jsonInstructions.add(instructionCodec.encode(instruction, context)); |
| } |
| |
| if (treatment.metered() != null) { |
| for (Instructions.MeterInstruction instruction : treatment.meters()) { |
| jsonInstructions.add(instructionCodec.encode(instruction, context)); |
| } |
| } |
| if (treatment.tableTransition() != null) { |
| jsonInstructions.add(instructionCodec.encode(treatment.tableTransition(), context)); |
| } |
| if (treatment.clearedDeferred()) { |
| result.put(CLEAR_DEFERRED, true); |
| } |
| |
| final ArrayNode jsonDeferred = result.putArray(DEFERRED); |
| |
| for (final Instruction instruction : treatment.deferred()) { |
| jsonDeferred.add(instructionCodec.encode(instruction, context)); |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public TrafficTreatment decode(ObjectNode json, CodecContext context) { |
| final JsonCodec<Instruction> instructionsCodec = |
| context.codec(Instruction.class); |
| |
| JsonNode instructionsJson = json.get(INSTRUCTIONS); |
| TrafficTreatment.Builder builder = DefaultTrafficTreatment.builder(); |
| if (instructionsJson != null) { |
| IntStream.range(0, instructionsJson.size()) |
| .forEach(i -> builder.add( |
| instructionsCodec.decode(get(instructionsJson, i), |
| context))); |
| } |
| |
| JsonNode clearDeferred = json.get(CLEAR_DEFERRED); |
| if (clearDeferred != null && clearDeferred.asBoolean(false)) { |
| builder.wipeDeferred(); |
| } |
| |
| JsonNode deferredJson = json.get(DEFERRED); |
| if (deferredJson != null) { |
| IntStream.range(0, deferredJson.size()) |
| .forEach(i -> builder.deferred().add( |
| instructionsCodec.decode(get(deferredJson, i), |
| context))); |
| } |
| |
| return builder.build(); |
| } |
| } |