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.query.input;
  
  import lombok.Getter;
  import lombok.Setter;
  import org.apache.skywalking.oap.server.core.query.MetricsMetadataQueryService;
  import org.apache.skywalking.oap.server.core.query.enumeration.MetricsType;
  import org.apache.skywalking.oap.server.core.query.enumeration.Order;
  import org.apache.skywalking.oap.server.core.query.enumeration.Scope;
  import org.apache.skywalking.oap.server.core.storage.annotation.ValueColumnMetadata;
  import org.apache.skywalking.oap.server.library.util.StringUtil;
  
  /**
   * Record query condition.
   *
   * @since 9.3.0
   */
  @Setter
  @Getter
  public class RecordCondition {
      /**
       * Metrics name
       */
      private String name;
      /**
       * Follow {@link Entity} definition description. The owner of the sampled records.
       */
      private Entity parentEntity;
      private int topN;
      private Order order;
  
      public RecordCondition() {
      }
  
      public RecordCondition(TopNCondition condition) {
          this.name = condition.getName();
          if (StringUtil.isNotEmpty(condition.getParentService())) {
              final Entity entity = new Entity();
              entity.setScope(condition.getScope() == null ? Scope.Service : condition.getScope());
              entity.setServiceName(condition.getParentService());
              entity.setNormal(condition.isNormal());
              this.parentEntity = entity;
          }
          this.topN = condition.getTopN();
          this.order = condition.getOrder();
      }
  
      /**
       * Sense Scope through metric name.
       * @return false if not a valid metric name.
       */
      public boolean senseScope() {
          if (MetricsType.UNKNOWN.equals(MetricsMetadataQueryService.typeOfMetrics(name))) {
              return false;
          }
          parentEntity.setScope(ValueColumnMetadata.INSTANCE.getScope(name));
          return true;
      }
  }
  