| /* |
| * Copyright 2017-present 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.mapping.codec; |
| |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import org.onosproject.codec.CodecContext; |
| import org.onosproject.mapping.instructions.MappingInstruction; |
| import org.onosproject.mapping.instructions.MulticastMappingInstruction; |
| import org.onosproject.mapping.instructions.UnicastMappingInstruction; |
| import org.slf4j.Logger; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * JSON encoding of MappingInstructions. |
| */ |
| public final class EncodeMappingInstructionCodecHelper { |
| protected static final Logger log = getLogger(EncodeMappingInstructionCodecHelper.class); |
| private final MappingInstruction instruction; |
| private final CodecContext context; |
| |
| /** |
| * Creates a mapping instruction object encoder. |
| * |
| * @param instruction mapping instruction to encode |
| * @param context codec context for the encoding |
| */ |
| public EncodeMappingInstructionCodecHelper(MappingInstruction instruction, |
| CodecContext context) { |
| this.instruction = instruction; |
| this.context = context; |
| } |
| |
| /** |
| * Encodes an unicast mapping instruction. |
| * |
| * @param result json node that the mapping instruction |
| * attributes are added to |
| */ |
| private void encodeUnicast(ObjectNode result) { |
| UnicastMappingInstruction unicastInstruction = |
| (UnicastMappingInstruction) instruction; |
| result.put(MappingInstructionCodec.SUBTYPE, unicastInstruction.subtype().name()); |
| |
| switch (unicastInstruction.subtype()) { |
| case WEIGHT: |
| UnicastMappingInstruction.WeightMappingInstruction wmi = |
| (UnicastMappingInstruction.WeightMappingInstruction) |
| unicastInstruction; |
| result.put(MappingInstructionCodec.UNICAST_WEIGHT, wmi.weight()); |
| break; |
| case PRIORITY: |
| UnicastMappingInstruction.PriorityMappingInstruction pmi = |
| (UnicastMappingInstruction.PriorityMappingInstruction) |
| unicastInstruction; |
| result.put(MappingInstructionCodec.UNICAST_PRIORITY, pmi.priority()); |
| break; |
| default: |
| log.info("Cannot convert unicast subtype of {}", |
| unicastInstruction.subtype()); |
| } |
| } |
| |
| /** |
| * Encodes a multicast mapping instruction. |
| * |
| * @param result json node that the mapping instruction |
| * attributes are added to |
| */ |
| private void encodeMulticast(ObjectNode result) { |
| MulticastMappingInstruction multicastMappingInstruction = |
| (MulticastMappingInstruction) instruction; |
| result.put(MappingInstructionCodec.SUBTYPE, multicastMappingInstruction.subtype().name()); |
| |
| switch (multicastMappingInstruction.subtype()) { |
| case WEIGHT: |
| MulticastMappingInstruction.WeightMappingInstruction wmi = |
| (MulticastMappingInstruction.WeightMappingInstruction) |
| multicastMappingInstruction; |
| result.put(MappingInstructionCodec.MULTICAST_WEIGHT, wmi.weight()); |
| break; |
| case PRIORITY: |
| MulticastMappingInstruction.PriorityMappingInstruction pmi = |
| (MulticastMappingInstruction.PriorityMappingInstruction) |
| multicastMappingInstruction; |
| result.put(MappingInstructionCodec.MULTICAST_PRIORITY, pmi.priority()); |
| break; |
| default: |
| log.info("Cannot convert multicast subtype of {}", |
| multicastMappingInstruction.subtype()); |
| } |
| } |
| |
| /** |
| * Encodes the given mapping instruction into JSON. |
| * |
| * @return JSON object node representing the mapping instruction. |
| */ |
| public ObjectNode encode() { |
| final ObjectNode result = context.mapper().createObjectNode() |
| .put(MappingInstructionCodec.TYPE, instruction.type().toString()); |
| |
| switch (instruction.type()) { |
| case UNICAST: |
| encodeUnicast(result); |
| break; |
| case MULTICAST: |
| encodeMulticast(result); |
| break; |
| default: |
| log.info("Cannot convert mapping instruction type of {}", instruction.type()); |
| break; |
| } |
| return result; |
| } |
| } |