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/*
* 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.DefaultTrafficTreatment;
import org.onosproject.net.flow.TrafficTreatment;
import org.onosproject.net.flow.instructions.Instruction;
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 treatment codec.
*/
public final class TrafficTreatmentCodec extends JsonCodec<TrafficTreatment> {
private static final String INSTRUCTIONS = "instructions";
@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));
}
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)));
}
return builder.build();
}
}
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