content: /*
   * 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.cassandra.sidecar.datahub;
  
  import java.time.Instant;
  
  import com.datastax.driver.core.TableMetadata;
  import com.linkedin.common.TimeStamp;
  import com.linkedin.data.template.SetMode;
  import com.linkedin.dataset.DatasetProperties;
  import datahub.event.MetadataChangeProposalWrapper;
  import org.jetbrains.annotations.NotNull;
  
  /**
   * Converter class for preparing the Dataset Properties aspect for a given Cassandra table
   */
  public class TableToDatasetPropertiesConverter extends TableToAspectConverter<DatasetProperties>
  {
      public TableToDatasetPropertiesConverter(@NotNull IdentifiersProvider identifiers)
      {
          super(identifiers);
      }
  
      @Override
      @NotNull
      public MetadataChangeProposalWrapper<DatasetProperties> convert(@NotNull TableMetadata table)
      {
          String urn = identifiers.urnDataset(table);
  
          DatasetProperties aspect = new DatasetProperties()
                  .setName(table.getName())
                  .setQualifiedName(table.getKeyspace().getName() + DELIMITER + table.getName());
  
          String comment = table.getOptions().getComment();
          if (comment != null)
          {
              aspect = aspect
                  .setDescription(comment);
          }
  
          aspect = aspect  // It is desirable to obtain creation and modification timestamps, but the necessary permissions may be lacking
                  .setCreated(null, SetMode.REMOVE_IF_NULL)
                  .setLastModified(null, SetMode.REMOVE_IF_NULL);
  
          return wrap(urn, aspect);
      }
  
      @NotNull
      @SuppressWarnings("unused")
      protected static TimeStamp convertTime(@NotNull Instant javaTime)
      {
          return new TimeStamp()
                  .setTime(javaTime.toEpochMilli());
      }
  }
  