anoopj commented on code in PR #16100: URL: https://github.com/apache/iceberg/pull/16100#discussion_r3384591162
########## core/src/main/java/org/apache/iceberg/TrackedFileAdapters.java: ########## @@ -0,0 +1,435 @@ +/* + * 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.iceberg; + +import java.nio.ByteBuffer; +import java.util.List; +import java.util.Map; +import java.util.Set; +import org.apache.iceberg.relocated.com.google.common.base.Preconditions; + +/** + * Adapts {@link TrackedFile} entries to the {@link DataFile} and {@link DeleteFile} APIs. + * + * <p>V4 colocates deletion vectors with data file entries in {@link TrackedFile}. Rather than + * extending {@link DataFile} with deletion vector fields, DVs are extracted as separate {@link + * DeleteFile} objects via {@link #asDVDeleteFile(TrackedFile, Map)}. This matches the v3 convention + * where DVs are tracked as {@link DeleteFile} entries in delete manifests and keeps the existing + * {@link FileScanTask} contract ({@code file()} + {@code deletes()}) unchanged. + */ +class TrackedFileAdapters { + + private TrackedFileAdapters() {} + + static DataFile asDataFile(TrackedFile file, Map<Integer, PartitionSpec> specsById) { + Preconditions.checkArgument( + file.contentType() == FileContent.DATA, + "Invalid content type for DataFile: %s", + file.contentType()); + return new TrackedDataFile(file, resolveSpec(file, specsById)); + } + + static DeleteFile asDVDeleteFile(TrackedFile file, Map<Integer, PartitionSpec> specsById) { + Preconditions.checkArgument( + file.contentType() == FileContent.DATA, + "Invalid content type for DV delete file: %s", + file.contentType()); + return new TrackedDVDeleteFile(file, resolveSpec(file, specsById)); + } + + static DeleteFile asEqualityDeleteFile(TrackedFile file, Map<Integer, PartitionSpec> specsById) { + Preconditions.checkArgument( + file.contentType() == FileContent.EQUALITY_DELETES, + "Invalid content type for equality delete file: %s", + file.contentType()); + return new TrackedEqualityDeleteFile(file, resolveSpec(file, specsById)); + } + + /** + * Shared base for all tracked file adapters. Holds the common fields and implements the methods + * that delegate to {@link TrackedFile} and {@link PartitionSpec}. + */ + private abstract static class TrackedFileAdapter<F extends ContentFile<F>> + implements ContentFile<F> { + private final TrackedFile file; + private final PartitionSpec spec; + + private TrackedFileAdapter(TrackedFile file, PartitionSpec spec) { + this.file = file; + this.spec = spec; + } + + protected TrackedFile file() { + return file; + } + + protected PartitionSpec spec() { + return spec; + } + + protected Tracking tracking() { + return file.tracking(); + } + + @Override + public Long pos() { + Tracking tracking = tracking(); + return tracking != null ? tracking.manifestPos() : null; + } + + @Override + public String manifestLocation() { + Tracking tracking = tracking(); + return tracking != null ? tracking.manifestLocation() : null; + } + + @Override + public int specId() { + return file.specId() != null ? file.specId() : spec.specId(); Review Comment: Thanks - that's simpler. Done. ########## core/src/main/java/org/apache/iceberg/TrackedFileAdapters.java: ########## @@ -0,0 +1,435 @@ +/* + * 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.iceberg; + +import java.nio.ByteBuffer; +import java.util.List; +import java.util.Map; +import java.util.Set; +import org.apache.iceberg.relocated.com.google.common.base.Preconditions; + +/** + * Adapts {@link TrackedFile} entries to the {@link DataFile} and {@link DeleteFile} APIs. + * + * <p>V4 colocates deletion vectors with data file entries in {@link TrackedFile}. Rather than + * extending {@link DataFile} with deletion vector fields, DVs are extracted as separate {@link + * DeleteFile} objects via {@link #asDVDeleteFile(TrackedFile, Map)}. This matches the v3 convention + * where DVs are tracked as {@link DeleteFile} entries in delete manifests and keeps the existing + * {@link FileScanTask} contract ({@code file()} + {@code deletes()}) unchanged. + */ +class TrackedFileAdapters { + + private TrackedFileAdapters() {} + + static DataFile asDataFile(TrackedFile file, Map<Integer, PartitionSpec> specsById) { + Preconditions.checkArgument( + file.contentType() == FileContent.DATA, + "Invalid content type for DataFile: %s", + file.contentType()); + return new TrackedDataFile(file, resolveSpec(file, specsById)); + } + + static DeleteFile asDVDeleteFile(TrackedFile file, Map<Integer, PartitionSpec> specsById) { + Preconditions.checkArgument( + file.contentType() == FileContent.DATA, + "Invalid content type for DV delete file: %s", + file.contentType()); + return new TrackedDVDeleteFile(file, resolveSpec(file, specsById)); + } + + static DeleteFile asEqualityDeleteFile(TrackedFile file, Map<Integer, PartitionSpec> specsById) { + Preconditions.checkArgument( + file.contentType() == FileContent.EQUALITY_DELETES, + "Invalid content type for equality delete file: %s", + file.contentType()); + return new TrackedEqualityDeleteFile(file, resolveSpec(file, specsById)); + } + + /** + * Shared base for all tracked file adapters. Holds the common fields and implements the methods + * that delegate to {@link TrackedFile} and {@link PartitionSpec}. + */ + private abstract static class TrackedFileAdapter<F extends ContentFile<F>> + implements ContentFile<F> { + private final TrackedFile file; + private final PartitionSpec spec; + + private TrackedFileAdapter(TrackedFile file, PartitionSpec spec) { + this.file = file; + this.spec = spec; + } + + protected TrackedFile file() { + return file; + } + + protected PartitionSpec spec() { + return spec; + } + + protected Tracking tracking() { + return file.tracking(); + } + + @Override + public Long pos() { + Tracking tracking = tracking(); + return tracking != null ? tracking.manifestPos() : null; + } + + @Override + public String manifestLocation() { + Tracking tracking = tracking(); + return tracking != null ? tracking.manifestLocation() : null; + } + + @Override + public int specId() { + return file.specId() != null ? file.specId() : spec.specId(); + } + + @Override + public StructLike partition() { + return file().partition(); + } + + @Override + public Long dataSequenceNumber() { + Tracking tracking = tracking(); + return tracking != null ? tracking.dataSequenceNumber() : null; + } + + @Override + public Long fileSequenceNumber() { + Tracking tracking = tracking(); + return tracking != null ? tracking.fileSequenceNumber() : null; + } + } + + /** Shared base for adapters that delegate to a {@link TrackedFile} for content file fields. */ + private abstract static class TrackedContentFile<F extends ContentFile<F>> + extends TrackedFileAdapter<F> { + private TrackedContentFile(TrackedFile file, PartitionSpec spec) { + super(file, spec); + } + + @SuppressWarnings("deprecation") + @Override + public CharSequence path() { + return file().location(); + } + + @Override + public String location() { + return file().location(); + } + + @Override + public FileFormat format() { + return file().fileFormat(); + } + + @Override + public long recordCount() { + return file().recordCount(); + } + + @Override + public long fileSizeInBytes() { + return file().fileSizeInBytes(); + } + + @Override + public Integer sortOrderId() { + return file().sortOrderId(); + } + + @Override + public ByteBuffer keyMetadata() { + return file().keyMetadata(); + } + + @Override + public List<Long> splitOffsets() { + return file().splitOffsets(); + } + + @Override + public Map<Integer, Long> columnSizes() { + return null; + } + + @Override + public Map<Integer, Long> valueCounts() { + return MetricsUtil.valueCounts(file().contentStats()); + } + + @Override + public Map<Integer, Long> nullValueCounts() { + return MetricsUtil.nullValueCounts(file().contentStats()); + } + + @Override + public Map<Integer, Long> nanValueCounts() { + return MetricsUtil.nanValueCounts(file().contentStats()); + } + + @Override + public Map<Integer, ByteBuffer> lowerBounds() { + return MetricsUtil.lowerBounds(file().contentStats()); + } + + @Override + public Map<Integer, ByteBuffer> upperBounds() { + return MetricsUtil.upperBounds(file().contentStats()); + } + } + + /** Adapts a TrackedFile DATA entry to the {@link DataFile} interface. */ + private static class TrackedDataFile extends TrackedContentFile<DataFile> implements DataFile { + private TrackedDataFile(TrackedFile file, PartitionSpec spec) { + super(file, spec); + } + + @Override + public FileContent content() { + return FileContent.DATA; + } + + @Override + public Long firstRowId() { + return tracking() != null ? tracking().firstRowId() : null; + } + + @Override + public DataFile copy() { + return new TrackedDataFile(file().copy(), spec()); + } + + @Override + public DataFile copy(boolean withStats) { + return withStats ? copy() : copyWithoutStats(); + } + + @Override + public DataFile copyWithoutStats() { + return new TrackedDataFile(file().copyWithoutStats(), spec()); + } + + @Override + public DataFile copyWithStats(Set<Integer> requestedColumnIds) { + return new TrackedDataFile(file().copyWithStats(requestedColumnIds), spec()); + } + } + + /** Adapts a TrackedFile EQUALITY_DELETES entry to the {@link DeleteFile} interface. */ + private static class TrackedEqualityDeleteFile extends TrackedContentFile<DeleteFile> + implements DeleteFile { + private TrackedEqualityDeleteFile(TrackedFile file, PartitionSpec spec) { + super(file, spec); + } + + @Override + public FileContent content() { + return FileContent.EQUALITY_DELETES; + } + + @Override + public List<Integer> equalityFieldIds() { + return file().equalityIds(); + } + + @Override + public DeleteFile copy() { + return new TrackedEqualityDeleteFile(file().copy(), spec()); + } + + @Override + public DeleteFile copy(boolean withStats) { + return withStats ? copy() : copyWithoutStats(); + } + + @Override + public DeleteFile copyWithoutStats() { + return new TrackedEqualityDeleteFile(file().copyWithoutStats(), spec()); + } + + @Override + public DeleteFile copyWithStats(Set<Integer> requestedColumnIds) { + return new TrackedEqualityDeleteFile(file().copyWithStats(requestedColumnIds), spec()); + } + } + + /** + * Adapts the deletion vector from a TrackedFile DATA entry to the {@link DeleteFile} interface. + * + * <p>The DV blob metadata is mapped to the DeleteFile DV fields: {@link + * DeleteFile#referencedDataFile()} is the data file location, and {@link + * DeleteFile#contentOffset()} / {@link DeleteFile#contentSizeInBytes()} point to the blob within + * the Puffin file. + */ + private static class TrackedDVDeleteFile extends TrackedFileAdapter<DeleteFile> + implements DeleteFile { + private final DeletionVector dv; + + private TrackedDVDeleteFile(TrackedFile file, PartitionSpec spec) { + super(file, spec); + Preconditions.checkArgument( + file.deletionVector() != null, "Cannot create DV delete file: no deletion vector"); + this.dv = file.deletionVector(); + } + + @Override + public FileContent content() { + return FileContent.POSITION_DELETES; + } + + @SuppressWarnings("deprecation") + @Override + public CharSequence path() { + return dv.location(); + } + + @Override + public String location() { + return dv.location(); + } + + @Override + public FileFormat format() { + return FileFormat.PUFFIN; + } + + @Override + public long recordCount() { + return dv.cardinality(); + } + + // Returns the DV blob size, not the full Puffin file size. The DeletionVector metadata does not + // include the Puffin file size, so this is the best approximation available. Space accounting + // that sums fileSizeInBytes() was already imprecise in v3 (multiple DVs sharing a Puffin file + // each reported the full file size). + @Override + public long fileSizeInBytes() { + return dv.sizeInBytes(); + } + + // From the spec: position deletes are required to be sorted by file and position, not a table + // order, and should set sort order id to null + @Override + public Integer sortOrderId() { + return null; + } + + @Override + public ByteBuffer keyMetadata() { + return null; + } + + @Override + public List<Integer> equalityFieldIds() { + return null; + } + + @Override + public String referencedDataFile() { + return file().location(); + } + + @Override + public Long contentOffset() { + return dv.offset(); + } + + @Override + public Long contentSizeInBytes() { + return dv.sizeInBytes(); + } + + @Override + public Map<Integer, Long> columnSizes() { + return null; + } + + @Override + public Map<Integer, Long> valueCounts() { + return null; + } + + @Override + public Map<Integer, Long> nullValueCounts() { + return null; + } + + @Override + public Map<Integer, Long> nanValueCounts() { + return null; + } + + @Override + public Map<Integer, ByteBuffer> lowerBounds() { + return null; + } + + @Override + public Map<Integer, ByteBuffer> upperBounds() { + return null; + } + + @Override + public DeleteFile copy() { + return new TrackedDVDeleteFile(file().copyWithoutStats(), spec()); + } + + @Override + public DeleteFile copy(boolean withStats) { + return copy(); + } + + @Override + public DeleteFile copyWithoutStats() { + return copy(); + } + + @Override + public DeleteFile copyWithStats(Set<Integer> requestedColumnIds) { + return copy(); + } + } + + private static PartitionSpec resolveSpec( Review Comment: Agree -- This is an automated message from the Apache Git Service. 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