aokolnychyi commented on code in PR #9165: URL: https://github.com/apache/iceberg/pull/9165#discussion_r1420161870
########## core/src/test/java/org/apache/iceberg/FileGenerationUtil.java: ########## @@ -0,0 +1,187 @@ +/* + * 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.Map; +import java.util.Random; +import java.util.UUID; +import org.apache.iceberg.io.DeleteSchemaUtil; +import org.apache.iceberg.io.LocationProvider; +import org.apache.iceberg.relocated.com.google.common.collect.Maps; +import org.apache.iceberg.types.Conversions; +import org.apache.iceberg.types.Types; + +public class FileGenerationUtil { + + private static final Random RANDOM = new Random(); + + private FileGenerationUtil() {} + + public static DataFile generateDataFile(Table table, StructLike partition) { + Schema schema = table.schema(); + PartitionSpec spec = table.spec(); + LocationProvider locations = table.locationProvider(); + String path = locations.newDataLocation(spec, partition, generateFileName()); + long fileSize = generateFileSize(); + Metrics metrics = generateRandomMetrics(schema); + return DataFiles.builder(spec) + .withPath(path) + .withPartition(partition) + .withFileSizeInBytes(fileSize) + .withFormat(FileFormat.PARQUET) + .withMetrics(metrics) + .build(); + } + + public static DeleteFile generatePositionDeleteFile(Table table, StructLike partition) { + PartitionSpec spec = table.spec(); + LocationProvider locations = table.locationProvider(); + String path = locations.newDataLocation(spec, partition, generateFileName()); + long fileSize = generateFileSize(); + Metrics metrics = generatePositionDeleteMetrics(); + return FileMetadata.deleteFileBuilder(table.spec()) + .ofPositionDeletes() + .withPath(path) + .withPartition(partition) + .withFileSizeInBytes(fileSize) + .withFormat(FileFormat.PARQUET) + .withMetrics(metrics) + .build(); + } + + public static DeleteFile generatePositionDeleteFile(Table table, DataFile dataFile) { + PartitionSpec spec = table.spec(); + StructLike partition = dataFile.partition(); + LocationProvider locations = table.locationProvider(); + String path = locations.newDataLocation(spec, partition, generateFileName()); + long fileSize = generateFileSize(); + Metrics metrics = generatePositionDeleteMetrics(dataFile); + return FileMetadata.deleteFileBuilder(table.spec()) + .ofPositionDeletes() + .withPath(path) + .withPartition(partition) + .withFileSizeInBytes(fileSize) + .withFormat(FileFormat.PARQUET) + .withMetrics(metrics) + .build(); + } + + public static String generateFileName() { + int partitionId = RANDOM.nextInt(100_000); Review Comment: It mostly means Spark write partition ID to mimic real file names. ########## core/src/test/java/org/apache/iceberg/FileGenerationUtil.java: ########## @@ -0,0 +1,187 @@ +/* + * 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.Map; +import java.util.Random; +import java.util.UUID; +import org.apache.iceberg.io.DeleteSchemaUtil; +import org.apache.iceberg.io.LocationProvider; +import org.apache.iceberg.relocated.com.google.common.collect.Maps; +import org.apache.iceberg.types.Conversions; +import org.apache.iceberg.types.Types; + +public class FileGenerationUtil { + + private static final Random RANDOM = new Random(); + + private FileGenerationUtil() {} + + public static DataFile generateDataFile(Table table, StructLike partition) { + Schema schema = table.schema(); + PartitionSpec spec = table.spec(); + LocationProvider locations = table.locationProvider(); + String path = locations.newDataLocation(spec, partition, generateFileName()); + long fileSize = generateFileSize(); + Metrics metrics = generateRandomMetrics(schema); + return DataFiles.builder(spec) + .withPath(path) + .withPartition(partition) + .withFileSizeInBytes(fileSize) + .withFormat(FileFormat.PARQUET) + .withMetrics(metrics) + .build(); + } + + public static DeleteFile generatePositionDeleteFile(Table table, StructLike partition) { + PartitionSpec spec = table.spec(); + LocationProvider locations = table.locationProvider(); + String path = locations.newDataLocation(spec, partition, generateFileName()); + long fileSize = generateFileSize(); + Metrics metrics = generatePositionDeleteMetrics(); + return FileMetadata.deleteFileBuilder(table.spec()) + .ofPositionDeletes() + .withPath(path) + .withPartition(partition) + .withFileSizeInBytes(fileSize) + .withFormat(FileFormat.PARQUET) + .withMetrics(metrics) + .build(); + } + + public static DeleteFile generatePositionDeleteFile(Table table, DataFile dataFile) { + PartitionSpec spec = table.spec(); + StructLike partition = dataFile.partition(); + LocationProvider locations = table.locationProvider(); + String path = locations.newDataLocation(spec, partition, generateFileName()); + long fileSize = generateFileSize(); + Metrics metrics = generatePositionDeleteMetrics(dataFile); + return FileMetadata.deleteFileBuilder(table.spec()) + .ofPositionDeletes() + .withPath(path) + .withPartition(partition) + .withFileSizeInBytes(fileSize) + .withFormat(FileFormat.PARQUET) + .withMetrics(metrics) + .build(); + } + + public static String generateFileName() { + int partitionId = RANDOM.nextInt(100_000); + int taskId = RANDOM.nextInt(100); + UUID operationId = UUID.randomUUID(); + int fileCount = RANDOM.nextInt(1_000); + return String.format("%d-%d-%s-%d.parquet", partitionId, taskId, operationId, fileCount); + } + + public static Metrics generateRandomMetrics(Schema schema) { + long rowCount = generateRowCount(); + Map<Integer, Long> columnSizes = Maps.newHashMap(); + Map<Integer, Long> valueCounts = Maps.newHashMap(); + Map<Integer, Long> nullValueCounts = Maps.newHashMap(); + Map<Integer, Long> nanValueCounts = Maps.newHashMap(); + Map<Integer, ByteBuffer> lowerBounds = Maps.newHashMap(); + Map<Integer, ByteBuffer> upperBounds = Maps.newHashMap(); + + for (Types.NestedField column : schema.columns()) { + int fieldId = column.fieldId(); + columnSizes.put(fieldId, generateColumnSize()); + valueCounts.put(fieldId, generateValueCount()); + nullValueCounts.put(fieldId, (long) RANDOM.nextInt(5)); + nanValueCounts.put(fieldId, (long) RANDOM.nextInt(5)); + byte[] lower = new byte[16]; + RANDOM.nextBytes(lower); + lowerBounds.put(fieldId, ByteBuffer.wrap(lower)); + byte[] upper = new byte[16]; + RANDOM.nextBytes(upper); + upperBounds.put(fieldId, ByteBuffer.wrap(upper)); + } + + return new Metrics( + rowCount, + columnSizes, + valueCounts, + nullValueCounts, + nanValueCounts, + lowerBounds, + upperBounds); + } + + private static Metrics generatePositionDeleteMetrics(DataFile dataFile) { + long rowCount = generateRowCount(); + Map<Integer, Long> columnSizes = Maps.newHashMap(); + Map<Integer, ByteBuffer> lowerBounds = Maps.newHashMap(); + Map<Integer, ByteBuffer> upperBounds = Maps.newHashMap(); + + for (Types.NestedField column : DeleteSchemaUtil.pathPosSchema().columns()) { + int fieldId = column.fieldId(); + columnSizes.put(fieldId, generateColumnSize()); + if (fieldId == MetadataColumns.DELETE_FILE_PATH.fieldId()) { + ByteBuffer bound = Conversions.toByteBuffer(Types.StringType.get(), dataFile.path()); + lowerBounds.put(fieldId, bound); + upperBounds.put(fieldId, bound); + } + } + + return new Metrics( + rowCount, + columnSizes, + null /* no value counts */, + null /* no NULL counts */, + null /* no NaN counts */, + lowerBounds, + upperBounds); + } + + private static Metrics generatePositionDeleteMetrics() { + long rowCount = generateRowCount(); + Map<Integer, Long> columnSizes = Maps.newHashMap(); + + for (Types.NestedField column : DeleteSchemaUtil.pathPosSchema().columns()) { + int fieldId = column.fieldId(); + columnSizes.put(fieldId, generateColumnSize()); + } + + return new Metrics( + rowCount, + columnSizes, + null /* no value counts */, + null /* no NULL counts */, + null /* no NaN counts */, + null /* no lower bounds */, + null /* no upper bounds */); + } + + private static long generateRowCount() { + return 100_000L + RANDOM.nextInt(1000); Review Comment: Done -- This is an automated message from the Apache Git Service. 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