| /* |
| * Copyright 2017-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.mapping.codec; |
| |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import org.onosproject.mapping.actions.MappingAction; |
| import org.onosproject.mapping.actions.MappingActions; |
| |
| import static org.onlab.util.Tools.nullIsIllegal; |
| |
| /** |
| * Decode portion of the mapping action codec. |
| */ |
| public final class DecodeMappingActionCodecHelper { |
| private final ObjectNode json; |
| |
| /** |
| * Creates a decode mapping action codec object. |
| * |
| * @param json JSON object to decode |
| */ |
| public DecodeMappingActionCodecHelper(ObjectNode json) { |
| this.json = json; |
| } |
| |
| /** |
| * Decodes a no mapping action. |
| * |
| * @return mapping action object decoded from the JSON |
| */ |
| private MappingAction decodeNoAction() { |
| return MappingActions.noAction(); |
| } |
| |
| /** |
| * Decodes a forward mapping action. |
| * |
| * @return mapping action object decoded from the JSON |
| */ |
| private MappingAction decodeForwardAction() { |
| return MappingActions.forward(); |
| } |
| |
| /** |
| * Decodes a native forward mapping action. |
| * |
| * @return mapping action object decoded from the JSON |
| */ |
| private MappingAction decodeNativeForwardAction() { |
| return MappingActions.nativeForward(); |
| } |
| |
| /** |
| * Decodes a drop mapping action. |
| * |
| * @return mapping action object decoded from the JSON |
| */ |
| private MappingAction decodeDropAction() { |
| return MappingActions.drop(); |
| } |
| |
| /** |
| * Decodes the JSON into a mapping action object. |
| * |
| * @return MappingAction object |
| * @throws IllegalArgumentException if the JSON is invalid |
| */ |
| public MappingAction decode() { |
| String type = nullIsIllegal(json.get(MappingActionCodec.TYPE), |
| MappingActionCodec.TYPE + MappingActionCodec.ERROR_MESSAGE).asText(); |
| |
| if (type.equals(MappingAction.Type.DROP.name())) { |
| return decodeDropAction(); |
| } else if (type.equals(MappingAction.Type.FORWARD.name())) { |
| return decodeForwardAction(); |
| } else if (type.equals(MappingAction.Type.NATIVE_FORWARD.name())) { |
| return decodeNativeForwardAction(); |
| } else if (type.equals(MappingAction.Type.NO_ACTION.name())) { |
| return decodeNoAction(); |
| } |
| throw new IllegalArgumentException("MappingAction type " |
| + type + " is not supported"); |
| } |
| } |