code: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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.apache.skywalking.oap.server.core.analysis.meter.function.sum;
  
  import java.util.Objects;
  import lombok.Getter;
  import lombok.Setter;
  import lombok.ToString;
  import org.apache.skywalking.oap.server.core.UnexpectedException;
  import org.apache.skywalking.oap.server.core.analysis.manual.instance.InstanceTraffic;
  import org.apache.skywalking.oap.server.core.analysis.meter.Meter;
  import org.apache.skywalking.oap.server.core.analysis.meter.MeterEntity;
  import org.apache.skywalking.oap.server.core.analysis.meter.function.AcceptableValue;
  import org.apache.skywalking.oap.server.core.analysis.meter.function.MeterFunction;
  import org.apache.skywalking.oap.server.core.analysis.metrics.DataTable;
  import org.apache.skywalking.oap.server.core.analysis.metrics.LabeledValueHolder;
  import org.apache.skywalking.oap.server.core.analysis.metrics.Metrics;
  import org.apache.skywalking.oap.server.core.analysis.metrics.annotation.Entrance;
  import org.apache.skywalking.oap.server.core.analysis.metrics.annotation.SourceFrom;
  import org.apache.skywalking.oap.server.core.remote.grpc.proto.RemoteData;
  import org.apache.skywalking.oap.server.core.storage.StorageID;
  import org.apache.skywalking.oap.server.core.storage.annotation.BanyanDB;
  import org.apache.skywalking.oap.server.core.storage.annotation.Column;
  import org.apache.skywalking.oap.server.core.storage.type.Convert2Entity;
  import org.apache.skywalking.oap.server.core.storage.type.Convert2Storage;
  import org.apache.skywalking.oap.server.core.storage.type.StorageBuilder;
  
  @MeterFunction(functionName = "sumLabeled")
  @ToString
  public abstract class SumLabeledFunction extends Meter implements AcceptableValue<DataTable>, LabeledValueHolder {
  
      protected static final String VALUE = "datatable_value";
  
      @Setter
      @Getter
      @Column(name = ENTITY_ID, length = 512)
      @BanyanDB.SeriesID(index = 0)
      private String entityId;
  
      @Setter
      @Getter
      @Column(name = InstanceTraffic.SERVICE_ID)
      private String serviceId;
  
      @Getter
      @Setter
      @Column(name = VALUE, dataType = Column.ValueDataType.LABELED_VALUE, storageOnly = true)
      @BanyanDB.MeasureField
      private DataTable value = new DataTable(30);
  
      @Entrance
      public final void combine(@SourceFrom DataTable value) {
          this.value.append(value);
      }
  
      @Override
      public final boolean combine(Metrics metrics) {
          SumLabeledFunction sumLabeledFunction = (SumLabeledFunction) metrics;
          value.append(sumLabeledFunction.value);
          return true;
      }
  
      @Override
      public final void calculate() {
  
      }
  
      @Override
      public Metrics toHour() {
          SumLabeledFunction metrics = (SumLabeledFunction) createNew();
          metrics.setEntityId(getEntityId());
          metrics.setTimeBucket(toTimeBucketInHour());
          metrics.setServiceId(getServiceId());
          metrics.getValue().copyFrom(getValue());
          return metrics;
      }
  
      @Override
      public Metrics toDay() {
          SumLabeledFunction metrics = (SumLabeledFunction) createNew();
          metrics.setEntityId(getEntityId());
          metrics.setTimeBucket(toTimeBucketInDay());
          metrics.setServiceId(getServiceId());
          metrics.getValue().copyFrom(getValue());
          return metrics;
      }
  
      @Override
      public int remoteHashCode() {
          return entityId.hashCode();
      }
  
      @Override
      public void deserialize(final RemoteData remoteData) {
          setValue(new DataTable(remoteData.getDataObjectStrings(0)));
          setTimeBucket(remoteData.getDataLongs(0));
  
          this.entityId = remoteData.getDataStrings(0);
          this.serviceId = remoteData.getDataStrings(1);
      }
  
      @Override
      public RemoteData.Builder serialize() {
          RemoteData.Builder remoteBuilder = RemoteData.newBuilder();
          remoteBuilder.addDataObjectStrings(value.toStorageData());
          remoteBuilder.addDataLongs(getTimeBucket());
  
          remoteBuilder.addDataStrings(entityId);
          remoteBuilder.addDataStrings(serviceId);
  
          return remoteBuilder;
      }
  
      @Override
      protected StorageID id0() {
          return new StorageID()
              .append(TIME_BUCKET, getTimeBucket())
              .append(ENTITY_ID, getEntityId());
      }
  
      @Override
      public void accept(final MeterEntity entity, final DataTable value) {
          this.entityId = entity.id();
          this.serviceId = entity.serviceId();
          this.value.append(value);
      }
  
      @Override
      public Class<? extends SumLabeledStorageBuilder> builder() {
          return SumLabeledStorageBuilder.class;
      }
  
      public static class SumLabeledStorageBuilder implements StorageBuilder<SumLabeledFunction> {
          @Override
          public SumLabeledFunction storage2Entity(final Convert2Entity converter) {
              SumLabeledFunction metrics = new SumLabeledFunction() {
                  @Override
                  public AcceptableValue<DataTable> createNew() {
                      throw new UnexpectedException("createNew should not be called");
                  }
              };
              metrics.setValue(new DataTable((String) converter.get(VALUE)));
              metrics.setTimeBucket(((Number) converter.get(TIME_BUCKET)).longValue());
              metrics.setServiceId((String) converter.get(InstanceTraffic.SERVICE_ID));
              metrics.setEntityId((String) converter.get(ENTITY_ID));
              return metrics;
          }
  
          @Override
          public void entity2Storage(final SumLabeledFunction storageData, final Convert2Storage converter) {
              converter.accept(VALUE, storageData.getValue());
              converter.accept(TIME_BUCKET, storageData.getTimeBucket());
              converter.accept(InstanceTraffic.SERVICE_ID, storageData.getServiceId());
              converter.accept(ENTITY_ID, storageData.getEntityId());
          }
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) {
              return true;
          }
          if (!(o instanceof SumLabeledFunction)) {
              return false;
          }
          SumLabeledFunction function = (SumLabeledFunction) o;
          return Objects.equals(entityId, function.entityId) &&
              getTimeBucket() == function.getTimeBucket();
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(entityId, getTimeBucket());
      }
  }
  