| /* |
| * Copyright 2016-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.codec.impl; |
| |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import org.onosproject.codec.CodecContext; |
| import org.onosproject.codec.JsonCodec; |
| import org.onosproject.net.MastershipRole; |
| import org.slf4j.Logger; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onlab.util.Tools.nullIsIllegal; |
| import static org.onosproject.net.MastershipRole.MASTER; |
| import static org.onosproject.net.MastershipRole.NONE; |
| import static org.onosproject.net.MastershipRole.STANDBY; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Codec for mastership role. |
| */ |
| public final class MastershipRoleCodec extends JsonCodec<MastershipRole> { |
| private final Logger log = getLogger(getClass()); |
| |
| // JSON field names |
| private static final String ROLE = "role"; |
| |
| private static final String MISSING_MEMBER_MESSAGE = " member is required in MastershipRole"; |
| |
| @Override |
| public ObjectNode encode(MastershipRole mastershipRole, CodecContext context) { |
| checkNotNull(mastershipRole, "MastershipRole cannot be null"); |
| ObjectNode result = context.mapper().createObjectNode() |
| .put(ROLE, mastershipRole.name()); |
| return result; |
| } |
| |
| @Override |
| public MastershipRole decode(ObjectNode json, CodecContext context) { |
| if (json == null || !json.isObject()) { |
| return null; |
| } |
| |
| String roleJson = nullIsIllegal(json.get(ROLE), |
| ROLE + MISSING_MEMBER_MESSAGE).asText(); |
| MastershipRole mastershipRole; |
| switch (roleJson) { |
| case "MASTER": |
| mastershipRole = MASTER; |
| break; |
| case "STANDBY": |
| mastershipRole = STANDBY; |
| break; |
| case "NONE": |
| mastershipRole = NONE; |
| break; |
| default: |
| log.warn("The mastership role {} is not defined.", roleJson); |
| return null; |
| } |
| |
| return mastershipRole; |
| } |
| } |