richardstartin commented on a change in pull request #7454: URL: https://github.com/apache/pinot/pull/7454#discussion_r715397527
########## File path: pinot-segment-local/src/main/java/org/apache/pinot/segment/local/segment/creator/impl/inv/BitSlicedRangeIndexCreator.java ########## @@ -0,0 +1,142 @@ +/** + * 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.segment.local.segment.creator.impl.inv; + +import java.io.File; +import java.io.IOException; +import org.apache.pinot.segment.local.utils.FPOrdering; +import org.apache.pinot.segment.spi.ColumnMetadata; +import org.apache.pinot.segment.spi.index.creator.CombinedInvertedIndexCreator; +import org.apache.pinot.spi.data.FieldSpec; +import org.roaringbitmap.RangeBitmap; + +import static org.apache.pinot.segment.spi.V1Constants.Indexes.BITMAP_RANGE_INDEX_FILE_EXTENSION; +import static org.apache.pinot.spi.data.FieldSpec.DataType.DOUBLE; +import static org.apache.pinot.spi.data.FieldSpec.DataType.FLOAT; +import static org.apache.pinot.spi.data.FieldSpec.DataType.INT; +import static org.apache.pinot.spi.data.FieldSpec.DataType.LONG; + +public class BitSlicedRangeIndexCreator implements CombinedInvertedIndexCreator { + + public static final int VERSION = 2; + + private final RangeBitmap.Appender _appender; + private final File _rangeIndexFile; + private final long _minValue; + + public BitSlicedRangeIndexCreator(File indexDir, ColumnMetadata metadata) { + _appender = RangeBitmap.appender(maxValue(metadata)); + _rangeIndexFile = new File(indexDir, metadata.getColumnName() + BITMAP_RANGE_INDEX_FILE_EXTENSION); + _minValue = minValue(metadata); + } + + @Override + public void add(int dictId) { + _appender.add(dictId - _minValue); + } + + @Override + public void add(int[] dictIds, int length) { + throw new UnsupportedOperationException("MV not supported"); + } + + @Override + public void add(long value) { + _appender.add(value - _minValue); + } + + @Override + public void add(long[] values, int length) { + throw new UnsupportedOperationException("MV not supported"); + } + + @Override + public void add(float value) { + _appender.add(FPOrdering.ordinalOf(value)); + } + + @Override + public void add(float[] values, int length) { + throw new UnsupportedOperationException("MV not supported"); + } + + @Override + public void add(double value) { + _appender.add(FPOrdering.ordinalOf(value)); + } + + @Override + public void add(double[] values, int length) { + throw new UnsupportedOperationException("MV not supported"); + } + + @Override + public void seal() throws IOException { + int headerSize = Integer.BYTES + Long.BYTES; + int serializedSize = _appender.serializedSizeInBytes(); + try (MmapFileWriter writer = new MmapFileWriter(_rangeIndexFile, headerSize + serializedSize)) { + writer.write(buf -> { + buf.putInt(VERSION); + buf.putLong(_minValue); + _appender.serialize(buf); + }); + } + _appender.clear(); + } + + @Override + public void close() throws IOException { + + } + + private static long maxValue(ColumnMetadata metadata) { + if (metadata.hasDictionary()) { + return metadata.getCardinality(); + } + FieldSpec.DataType dataType = metadata.getDataType(); Review comment: Ideally this would be failing a test, I can provoke it in a unit test of course. -- 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. To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org 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
