aokolnychyi commented on a change in pull request #2873: URL: https://github.com/apache/iceberg/pull/2873#discussion_r677636598
########## File path: data/src/main/java/org/apache/iceberg/data/BaseWriterFactory.java ########## @@ -0,0 +1,255 @@ +/* + * 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.data; + +import java.io.IOException; +import java.io.UncheckedIOException; +import java.util.Map; +import org.apache.iceberg.FileFormat; +import org.apache.iceberg.MetricsConfig; +import org.apache.iceberg.PartitionSpec; +import org.apache.iceberg.Schema; +import org.apache.iceberg.SortOrder; +import org.apache.iceberg.StructLike; +import org.apache.iceberg.Table; +import org.apache.iceberg.avro.Avro; +import org.apache.iceberg.deletes.EqualityDeleteWriter; +import org.apache.iceberg.deletes.PositionDeleteWriter; +import org.apache.iceberg.encryption.EncryptedOutputFile; +import org.apache.iceberg.encryption.EncryptionKeyMetadata; +import org.apache.iceberg.io.DataWriter; +import org.apache.iceberg.io.OutputFile; +import org.apache.iceberg.io.WriterFactory; +import org.apache.iceberg.orc.ORC; +import org.apache.iceberg.parquet.Parquet; + +/** + * A base writer factory to be extended by query engine integrations. + */ +public abstract class BaseWriterFactory<T> implements WriterFactory<T> { + private final Table table; + private final FileFormat dataFileFormat; + private final Schema dataSchema; + private final SortOrder dataSortOrder; + private final FileFormat deleteFileFormat; + private final int[] equalityFieldIds; + private final Schema equalityDeleteRowSchema; + private final SortOrder equalityDeleteSortOrder; + private final Schema positionDeleteRowSchema; + private final SortOrder positionDeleteSortOrder; + + protected BaseWriterFactory(Table table, FileFormat dataFileFormat, Schema dataSchema, + SortOrder dataSortOrder, FileFormat deleteFileFormat, + int[] equalityFieldIds, Schema equalityDeleteRowSchema, + SortOrder equalityDeleteSortOrder, Schema positionDeleteRowSchema, + SortOrder positionDeleteSortOrder) { + this.table = table; + this.dataFileFormat = dataFileFormat; + this.dataSchema = dataSchema; + this.dataSortOrder = dataSortOrder; + this.deleteFileFormat = deleteFileFormat; + this.equalityFieldIds = equalityFieldIds; + this.equalityDeleteRowSchema = equalityDeleteRowSchema; + this.equalityDeleteSortOrder = equalityDeleteSortOrder; + this.positionDeleteRowSchema = positionDeleteRowSchema; + this.positionDeleteSortOrder = positionDeleteSortOrder; + } + + protected abstract void configureDataWrite(Avro.DataWriteBuilder builder); + protected abstract void configureEqualityDelete(Avro.DeleteWriteBuilder builder); + protected abstract void configurePositionDelete(Avro.DeleteWriteBuilder builder); + + protected abstract void configureDataWrite(Parquet.DataWriteBuilder builder); + protected abstract void configureEqualityDelete(Parquet.DeleteWriteBuilder builder); + protected abstract void configurePositionDelete(Parquet.DeleteWriteBuilder builder); + + protected abstract void configureDataWrite(ORC.DataWriteBuilder builder); + + @Override + public DataWriter<T> newDataWriter(EncryptedOutputFile file, PartitionSpec spec, StructLike partition) { + OutputFile outputFile = file.encryptingOutputFile(); + EncryptionKeyMetadata keyMetadata = file.keyMetadata(); + Map<String, String> properties = table.properties(); + MetricsConfig metricsConfig = MetricsConfig.fromProperties(properties); + + try { + switch (dataFileFormat) { + case AVRO: + Avro.DataWriteBuilder avroBuilder = Avro.writeData(outputFile) + .schema(dataSchema) + .setAll(properties) + .metricsConfig(metricsConfig) + .withSpec(spec) + .withPartition(partition) + .withKeyMetadata(keyMetadata) + .withSortOrder(dataSortOrder) + .overwrite(); + + configureDataWrite(avroBuilder); + + return avroBuilder.build(); + + case PARQUET: + Parquet.DataWriteBuilder parquetBuilder = Parquet.writeData(outputFile) + .schema(dataSchema) + .setAll(properties) + .metricsConfig(metricsConfig) + .withSpec(spec) + .withPartition(partition) + .withKeyMetadata(keyMetadata) + .withSortOrder(dataSortOrder) + .overwrite(); + + configureDataWrite(parquetBuilder); + + return parquetBuilder.build(); + + case ORC: + ORC.DataWriteBuilder orcBuilder = ORC.writeData(outputFile) + .schema(dataSchema) + .setAll(properties) + .metricsConfig(metricsConfig) + .withSpec(spec) + .withPartition(partition) + .withKeyMetadata(keyMetadata) + .withSortOrder(dataSortOrder) + .overwrite(); + + configureDataWrite(orcBuilder); + + return orcBuilder.build(); + + default: + throw new UnsupportedOperationException("Unsupported data file format: " + dataFileFormat); + } + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + @Override + public EqualityDeleteWriter<T> newEqualityDeleteWriter(EncryptedOutputFile file, PartitionSpec spec, + StructLike partition) { + OutputFile outputFile = file.encryptingOutputFile(); + EncryptionKeyMetadata keyMetadata = file.keyMetadata(); + Map<String, String> properties = table.properties(); + + // TODO: build and pass a correct metrics config for equality deletes Review comment: I agree about using the data metric configuration for equality deletes. It wasn't there in `SparkAppenderFactory` but I think we can add it now. I'll do that in this PR and then we can address position deletes later. -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
