| /* |
| * 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.ObjectNode; |
| import org.onosproject.codec.CodecContext; |
| import org.onosproject.codec.JsonCodec; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.flow.DefaultFlowRule; |
| import org.onosproject.net.flow.FlowRule; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.flow.TrafficTreatment; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onlab.util.Tools.nullIsIllegal; |
| |
| /** |
| * Flow rule JSON codec. |
| */ |
| public final class FlowRuleCodec extends JsonCodec<FlowRule> { |
| |
| private static final String PRIORITY = "priority"; |
| private static final String TIMEOUT = "timeout"; |
| private static final String IS_PERMANENT = "isPermanent"; |
| private static final String APP_ID = "appId"; |
| private static final String TABLE_ID = "tableId"; |
| private static final String DEVICE_ID = "deviceId"; |
| private static final String TREATMENT = "treatment"; |
| private static final String SELECTOR = "selector"; |
| private static final String MISSING_MEMBER_MESSAGE = |
| " member is required in FlowRule"; |
| public static final String REST_APP_ID = "org.onosproject.rest"; |
| |
| @Override |
| public ObjectNode encode(FlowRule flowRule, CodecContext context) { |
| checkNotNull(flowRule, "Flow rule cannot be null"); |
| |
| CoreService service = context.getService(CoreService.class); |
| ApplicationId appId = service.getAppId(flowRule.appId()); |
| String strAppId = (appId == null) ? "<none>" : appId.name(); |
| |
| final ObjectNode result = context.mapper().createObjectNode() |
| .put("id", Long.toString(flowRule.id().value())) |
| .put("tableId", flowRule.tableId()) |
| .put("appId", strAppId) |
| .put("priority", flowRule.priority()) |
| .put("timeout", flowRule.timeout()) |
| .put("isPermanent", flowRule.isPermanent()) |
| .put("deviceId", flowRule.deviceId().toString()); |
| |
| if (flowRule.treatment() != null) { |
| final JsonCodec<TrafficTreatment> treatmentCodec = |
| context.codec(TrafficTreatment.class); |
| result.set("treatment", treatmentCodec.encode(flowRule.treatment(), context)); |
| } |
| |
| if (flowRule.selector() != null) { |
| final JsonCodec<TrafficSelector> selectorCodec = |
| context.codec(TrafficSelector.class); |
| result.set("selector", selectorCodec.encode(flowRule.selector(), context)); |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public FlowRule decode(ObjectNode json, CodecContext context) { |
| if (json == null || !json.isObject()) { |
| return null; |
| } |
| |
| FlowRule.Builder resultBuilder = new DefaultFlowRule.Builder(); |
| |
| CoreService coreService = context.getService(CoreService.class); |
| JsonNode appIdJson = json.get(APP_ID); |
| String appId = appIdJson != null ? appIdJson.asText() : REST_APP_ID; |
| resultBuilder.fromApp(coreService.registerApplication(appId)); |
| |
| int priority = nullIsIllegal(json.get(PRIORITY), |
| PRIORITY + MISSING_MEMBER_MESSAGE).asInt(); |
| resultBuilder.withPriority(priority); |
| |
| boolean isPermanent = nullIsIllegal(json.get(IS_PERMANENT), |
| IS_PERMANENT + MISSING_MEMBER_MESSAGE).asBoolean(); |
| if (isPermanent) { |
| resultBuilder.makePermanent(); |
| } else { |
| resultBuilder.makeTemporary(nullIsIllegal(json.get(TIMEOUT), |
| TIMEOUT |
| + MISSING_MEMBER_MESSAGE |
| + " if the flow is temporary").asInt()); |
| } |
| |
| JsonNode tableIdJson = json.get(TABLE_ID); |
| if (tableIdJson != null) { |
| resultBuilder.forTable(tableIdJson.asInt()); |
| } |
| |
| DeviceId deviceId = DeviceId.deviceId(nullIsIllegal(json.get(DEVICE_ID), |
| DEVICE_ID + MISSING_MEMBER_MESSAGE).asText()); |
| resultBuilder.forDevice(deviceId); |
| |
| ObjectNode treatmentJson = get(json, TREATMENT); |
| if (treatmentJson != null) { |
| JsonCodec<TrafficTreatment> treatmentCodec = |
| context.codec(TrafficTreatment.class); |
| resultBuilder.withTreatment(treatmentCodec.decode(treatmentJson, context)); |
| } |
| |
| ObjectNode selectorJson = get(json, SELECTOR); |
| if (selectorJson != null) { |
| JsonCodec<TrafficSelector> selectorCodec = |
| context.codec(TrafficSelector.class); |
| resultBuilder.withSelector(selectorCodec.decode(selectorJson, context)); |
| } |
| |
| return resultBuilder.build(); |
| } |
| } |