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.carbondata.index.lucene;
  
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Set;
  
  import org.apache.carbondata.common.annotations.InterfaceAudience;
  import org.apache.carbondata.common.exceptions.sql.MalformedIndexCommandException;
  import org.apache.carbondata.core.datastore.impl.FileFactory;
  import org.apache.carbondata.core.features.TableOperation;
  import org.apache.carbondata.core.index.IndexInputSplit;
  import org.apache.carbondata.core.index.IndexLevel;
  import org.apache.carbondata.core.index.Segment;
  import org.apache.carbondata.core.index.dev.IndexModel;
  import org.apache.carbondata.core.index.dev.IndexWriter;
  import org.apache.carbondata.core.index.dev.fgindex.FineGrainIndex;
  import org.apache.carbondata.core.metadata.schema.table.CarbonTable;
  import org.apache.carbondata.core.metadata.schema.table.IndexSchema;
  
  import org.apache.hadoop.fs.Path;
  
  /**
   * FG level of lucene Index
   */
  @InterfaceAudience.Internal
  public class LuceneFineGrainIndexFactory extends LuceneIndexFactoryBase<FineGrainIndex> {
  
    public LuceneFineGrainIndexFactory(CarbonTable carbonTable, IndexSchema indexSchema)
        throws MalformedIndexCommandException {
      super(carbonTable, indexSchema);
    }
  
    /**
     * Get the index for segmentId
     */
    @Override
    public List<FineGrainIndex> getIndexes(Segment segment) throws IOException {
      List<FineGrainIndex> indexes = new ArrayList<>();
      FineGrainIndex index = new LuceneFineGrainIndex(analyzer, getIndexSchema());
      index.init(
          new IndexModel(
              IndexWriter.getDefaultIndexPath(
                  tableIdentifier.getTablePath(),
                  segment.getSegmentNo(),
                  indexName),
              segment.getConfiguration()));
      indexes.add(index);
      return indexes;
    }
  
    @Override
    public List<FineGrainIndex> getIndexes(Segment segment, Set<Path> partitionLocations)
        throws IOException {
      return getIndexes(segment);
    }
  
    /**
     * Get indexes for distributable object.
     */
    @Override
    public List<FineGrainIndex> getIndexes(IndexInputSplit distributable)
        throws IOException {
      List<FineGrainIndex> indexes = new ArrayList<>();
      FineGrainIndex index = new LuceneFineGrainIndex(analyzer, getIndexSchema());
      String indexPath = ((LuceneIndexInputSplit) distributable).getIndexPath();
      index.init(new IndexModel(indexPath, FileFactory.getConfiguration()));
      indexes.add(index);
      return indexes;
    }
  
    @Override
    public IndexLevel getIndexLevel() {
      return IndexLevel.FG;
    }
  
    @Override
    public boolean willBecomeStale(TableOperation operation) {
      switch (operation) {
        case ALTER_RENAME:
          return true;
        case ALTER_DROP:
          return true;
        case ALTER_ADD_COLUMN:
          return true;
        case ALTER_CHANGE_DATATYPE:
          return true;
        case ALTER_COLUMN_RENAME:
          return true;
        case STREAMING:
          return false;
        case DELETE:
          return true;
        case UPDATE:
          return true;
        case PARTITION:
          return true;
        default:
          return false;
      }
    }
  }
  