| /* |
| * Copyright 2016-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.meter.Band; |
| import org.onosproject.net.meter.DefaultMeterRequest; |
| import org.onosproject.net.meter.Meter; |
| import org.onosproject.net.meter.MeterRequest; |
| import org.slf4j.Logger; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.stream.IntStream; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onlab.util.Tools.nullIsIllegal; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * MeterRequest JSON codec. |
| */ |
| public final class MeterRequestCodec extends JsonCodec<MeterRequest> { |
| private final Logger log = getLogger(getClass()); |
| |
| // JSON field names |
| private static final String DEVICE_ID = "deviceId"; |
| private static final String UNIT = "unit"; |
| private static final String BANDS = "bands"; |
| public static final String REST_APP_ID = "org.onosproject.rest"; |
| private static final String MISSING_MEMBER_MESSAGE = " member is required in MeterRequest"; |
| |
| @Override |
| public MeterRequest decode(ObjectNode json, CodecContext context) { |
| if (json == null || !json.isObject()) { |
| return null; |
| } |
| |
| final JsonCodec<Band> meterBandCodec = context.codec(Band.class); |
| CoreService coreService = context.getService(CoreService.class); |
| |
| // parse device id |
| DeviceId deviceId = DeviceId.deviceId(nullIsIllegal(json.get(DEVICE_ID), |
| DEVICE_ID + MISSING_MEMBER_MESSAGE).asText()); |
| |
| // application id |
| ApplicationId appId = coreService.registerApplication(REST_APP_ID); |
| |
| // parse burst |
| boolean burst = false; |
| JsonNode burstJson = json.get("burst"); |
| if (burstJson != null) { |
| burst = burstJson.asBoolean(); |
| } |
| |
| // parse unit type |
| String unit = nullIsIllegal(json.get(UNIT), UNIT + MISSING_MEMBER_MESSAGE).asText(); |
| Meter.Unit meterUnit = null; |
| |
| switch (unit) { |
| case "KB_PER_SEC": |
| meterUnit = Meter.Unit.KB_PER_SEC; |
| break; |
| case "PKTS_PER_SEC": |
| meterUnit = Meter.Unit.PKTS_PER_SEC; |
| break; |
| default: |
| nullIsIllegal(meterUnit, "The requested unit " + unit + " is not defined for meter."); |
| } |
| |
| // parse meter bands |
| List<Band> bandList = new ArrayList<>(); |
| JsonNode bandsJson = json.get(BANDS); |
| checkNotNull(bandsJson); |
| if (bandsJson != null) { |
| IntStream.range(0, bandsJson.size()).forEach(i -> { |
| ObjectNode bandJson = get(bandsJson, i); |
| bandList.add(meterBandCodec.decode(bandJson, context)); |
| }); |
| } |
| |
| MeterRequest meterRequest; |
| if (burst) { |
| meterRequest = DefaultMeterRequest.builder() |
| .fromApp(appId) |
| .forDevice(deviceId) |
| .withUnit(meterUnit) |
| .withBands(bandList) |
| .burst().add(); |
| } else { |
| meterRequest = DefaultMeterRequest.builder() |
| .fromApp(appId) |
| .forDevice(deviceId) |
| .withUnit(meterUnit) |
| .withBands(bandList).add(); |
| } |
| |
| return meterRequest; |
| } |
| } |