jackjlli commented on a change in pull request #6479: URL: https://github.com/apache/incubator-pinot/pull/6479#discussion_r597401003
########## File path: pinot-core/src/main/java/org/apache/pinot/core/indexsegment/mutable/IntermediateSegment.java ########## @@ -0,0 +1,375 @@ +/** + * 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.indexsegment.mutable; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; +import javax.annotation.Nullable; +import org.apache.pinot.core.common.DataSource; +import org.apache.pinot.core.data.partition.PartitionFunction; +import org.apache.pinot.core.data.partition.PartitionFunctionFactory; +import org.apache.pinot.core.indexsegment.generator.SegmentGeneratorConfig; +import org.apache.pinot.core.io.readerwriter.PinotDataBufferMemoryManager; +import org.apache.pinot.core.io.writer.impl.DirectMemoryManager; +import org.apache.pinot.core.io.writer.impl.MmapMemoryManager; +import org.apache.pinot.core.realtime.impl.dictionary.MutableDictionaryFactory; +import org.apache.pinot.core.realtime.impl.forward.FixedByteMVMutableForwardIndex; +import org.apache.pinot.core.realtime.impl.forward.FixedByteSVMutableForwardIndex; +import org.apache.pinot.core.segment.creator.impl.V1Constants; +import org.apache.pinot.core.segment.index.column.IntermediateIndexContainer; +import org.apache.pinot.core.segment.index.column.NumValuesInfo; +import org.apache.pinot.core.segment.index.loader.IndexLoadingConfig; +import org.apache.pinot.core.segment.index.metadata.SegmentMetadata; +import org.apache.pinot.core.segment.index.readers.MutableDictionary; +import org.apache.pinot.core.segment.index.readers.MutableForwardIndex; +import org.apache.pinot.core.segment.index.readers.ValidDocIndexReader; +import org.apache.pinot.core.startree.v2.StarTreeV2; +import org.apache.pinot.spi.config.table.ColumnPartitionConfig; +import org.apache.pinot.spi.config.table.SegmentPartitionConfig; +import org.apache.pinot.spi.config.table.TableConfig; +import org.apache.pinot.spi.data.FieldSpec; +import org.apache.pinot.spi.data.Schema; +import org.apache.pinot.spi.data.readers.GenericRow; +import org.apache.pinot.spi.stream.RowMetadata; +import org.apache.pinot.spi.utils.ByteArray; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + + +/** + * Intermediate segment format to store the collected data so far. This segment format will be used to generate the final + * offline segment in SegmentIndexCreationDriver. + */ +public class IntermediateSegment implements MutableSegment { + private static final Logger LOGGER = LoggerFactory.getLogger(IntermediateSegment.class); + + private static final int MAX_MULTI_VALUES_PER_ROW = 1000; + private static final int DEFAULT_CAPACITY = 100_000; + private static final int DEFAULT_EST_AVG_COL_SIZE = 32; + private static final int DEFAULT_EST_CARDINALITY = 5000; + + private final SegmentGeneratorConfig _segmentGeneratorConfig; + private final Schema _schema; + private final TableConfig _tableConfig; + private final String _segmentName; + private final PartitionFunction _partitionFunction; + private final String _partitionColumn; + private final Map<String, IntermediateIndexContainer> _indexContainerMap = new HashMap<>(); + private final PinotDataBufferMemoryManager _memoryManager; + + private final int _capacity = DEFAULT_CAPACITY; + private volatile int _numDocsIndexed = 0; + + public IntermediateSegment(SegmentGeneratorConfig segmentGeneratorConfig) { + _segmentGeneratorConfig = segmentGeneratorConfig; + _schema = segmentGeneratorConfig.getSchema(); + _tableConfig = segmentGeneratorConfig.getTableConfig(); + _segmentName = _segmentGeneratorConfig.getSegmentName(); + + Collection<FieldSpec> allFieldSpecs = _schema.getAllFieldSpecs(); Review comment: Updated. -- This is an automated message from the Apache Git Service. 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