kishoreg commented on a change in pull request #6376: URL: https://github.com/apache/incubator-pinot/pull/6376#discussion_r547710349
########## File path: pinot-core/src/main/java/org/apache/pinot/core/segment/index/loader/invertedindex/H3IndexHandler.java ########## @@ -0,0 +1,205 @@ +/** + * 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.pinot.core.segment.index.loader.invertedindex; + +import java.io.File; +import java.io.IOException; +import java.util.HashSet; +import java.util.Set; +import org.apache.commons.io.FileUtils; +import org.apache.pinot.core.geospatial.serde.GeometrySerializer; +import org.apache.pinot.core.indexsegment.generator.SegmentVersion; +import org.apache.pinot.core.segment.creator.impl.V1Constants; +import org.apache.pinot.core.segment.creator.impl.geospatial.H3IndexCreator; +import org.apache.pinot.core.segment.creator.impl.inv.RangeIndexCreator; +import org.apache.pinot.core.segment.index.loader.IndexLoadingConfig; +import org.apache.pinot.core.segment.index.loader.LoaderUtils; +import org.apache.pinot.core.segment.index.metadata.ColumnMetadata; +import org.apache.pinot.core.segment.index.metadata.SegmentMetadataImpl; +import org.apache.pinot.core.segment.index.readers.ForwardIndexReader; +import org.apache.pinot.core.segment.index.readers.ForwardIndexReaderContext; +import org.apache.pinot.core.segment.index.readers.forward.FixedBitMVForwardIndexReader; +import org.apache.pinot.core.segment.index.readers.forward.FixedBitSVForwardIndexReaderV2; +import org.apache.pinot.core.segment.index.readers.forward.FixedByteChunkSVForwardIndexReader; +import org.apache.pinot.core.segment.index.readers.forward.VarByteChunkSVForwardIndexReader; +import org.apache.pinot.core.segment.memory.PinotDataBuffer; +import org.apache.pinot.core.segment.store.ColumnIndexType; +import org.apache.pinot.core.segment.store.SegmentDirectory; +import org.apache.pinot.spi.data.FieldSpec; +import org.locationtech.jts.geom.Coordinate; +import org.locationtech.jts.geom.Geometry; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + + +@SuppressWarnings({"rawtypes", "unchecked"}) +public class H3IndexHandler { + private static final Logger LOGGER = LoggerFactory.getLogger(H3IndexHandler.class); + + private final File _indexDir; + private final SegmentDirectory.Writer _segmentWriter; + private final String _segmentName; + private final SegmentVersion _segmentVersion; + private final Set<ColumnMetadata> _h3IndexColumns = new HashSet<>(); + + public H3IndexHandler(File indexDir, SegmentMetadataImpl segmentMetadata, IndexLoadingConfig indexLoadingConfig, + SegmentDirectory.Writer segmentWriter) { + _indexDir = indexDir; + _segmentWriter = segmentWriter; + _segmentName = segmentMetadata.getName(); + _segmentVersion = SegmentVersion.valueOf(segmentMetadata.getVersion()); + + // Only create H3 index on non-dictionary-encoded columns Review comment: this is for POC, dictionary encoded should also be possible. If user has lat, lon - then one should use derived virtual column (TBD) to create a geom column and generate h3 index on that. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For additional commands, e-mail: commits-h...@pinot.apache.org
