pvary commented on code in PR #15471: URL: https://github.com/apache/iceberg/pull/15471#discussion_r2872304270
########## flink/v2.1/flink/src/main/java/org/apache/iceberg/flink/sink/dynamic/VariantAvroDynamicTableRecordGenerator.java: ########## @@ -0,0 +1,197 @@ +/* + * 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.flink.sink.dynamic; + +import java.util.Map; +import org.apache.avro.Schema.Parser; +import org.apache.flink.api.common.functions.OpenContext; +import org.apache.flink.table.data.RowData; +import org.apache.flink.table.data.StringData; +import org.apache.flink.table.types.logical.RowType; +import org.apache.flink.table.types.logical.VarCharType; +import org.apache.flink.table.types.logical.VariantType; +import org.apache.flink.types.variant.Variant; +import org.apache.flink.util.Collector; +import org.apache.iceberg.DistributionMode; +import org.apache.iceberg.PartitionSpec; +import org.apache.iceberg.Schema; +import org.apache.iceberg.avro.AvroSchemaUtil; +import org.apache.iceberg.catalog.TableIdentifier; +import org.apache.iceberg.flink.FlinkCreateTableOptions; +import org.apache.iceberg.flink.FlinkSchemaUtil; +import org.apache.iceberg.flink.FlinkWriteOptions; +import org.apache.iceberg.flink.data.VariantRowDataWrapper; +import org.apache.iceberg.relocated.com.google.common.base.Preconditions; +import org.apache.iceberg.relocated.com.google.common.base.Splitter; + +public class VariantAvroDynamicTableRecordGenerator extends DynamicTableRecordGenerator { + private transient Map<String, Integer> fieldNameToPosition; + private transient Map<TableIdentifier, SchemaAndPartitionSpecCacheItem> tableCache; + private static final Parser PARSER = new Parser(); + private static final String DEFAULT_CACHE_MAX_SIZE = "100"; + private static final Splitter COMMA = Splitter.on(','); + private transient int maxCacheSize; + + public VariantAvroDynamicTableRecordGenerator(RowType rowType, Map<String, String> writeProps) { + super(rowType, writeProps); + + String catalogDatabaseColumn = FlinkCreateTableOptions.CATALOG_DATABASE.key(); + Preconditions.checkArgument( + rowType.getFieldIndex(catalogDatabaseColumn) != -1 + || writeProps().containsKey(catalogDatabaseColumn), + "Invalid %s:null." + "Either %s column should be passed in Row or set in table options", + catalogDatabaseColumn, + catalogDatabaseColumn); + + String catalogTableColumn = FlinkCreateTableOptions.CATALOG_TABLE.key(); + Preconditions.checkArgument( + rowType.getFieldIndex(catalogTableColumn) != -1 + || writeProps().containsKey(catalogTableColumn), + "Invalid %s:null." + "Either %s column should be passed in Row or set in table options", + catalogTableColumn, + catalogTableColumn); + + validateRequiredFieldAndType("data", new VariantType(false)); + validateRequiredFieldAndType("avro_schema", new VarCharType(false, Integer.MAX_VALUE)); + validateRequiredFieldAndType("avro_schema_id", new VarCharType(false, Integer.MAX_VALUE)); + } + + @Override + public void open(OpenContext openContext) throws Exception { + super.open(openContext); + + this.fieldNameToPosition = getFieldPositionIndex(); + + this.maxCacheSize = + Integer.parseInt( + writeProps().getOrDefault("schema-cache-max-size", DEFAULT_CACHE_MAX_SIZE)); + this.tableCache = new LRUCache<>(maxCacheSize); + } + + @Override + public void generate(RowData inputRecord, Collector<DynamicRecord> out) throws Exception { + String catalogDatabaseColumn = FlinkCreateTableOptions.CATALOG_DATABASE.key(); + String catalogDb = + getStringColumnValue( + inputRecord, catalogDatabaseColumn, writeProps().get(catalogDatabaseColumn)); + + String catalogTableColumn = FlinkCreateTableOptions.CATALOG_TABLE.key(); + String catalogTable = + getStringColumnValue(inputRecord, catalogTableColumn, writeProps().get(catalogTableColumn)); + + // All write options overrides should be inferred in DynamicIcebergSink + String branch = getStringColumnValue(inputRecord, FlinkWriteOptions.BRANCH.key()); + + DistributionMode distributionMode = null; + String distributionModeStr = + getStringColumnValue(inputRecord, FlinkWriteOptions.DISTRIBUTION_MODE.key()); + if (distributionModeStr != null) { + distributionMode = DistributionMode.fromName(distributionModeStr); + } + + int writeParallelism = -1; + Integer pos = fieldNameToPosition.get(FlinkWriteOptions.WRITE_PARALLELISM.key()); + if (pos != null) { + writeParallelism = inputRecord.getInt(pos); + } + + Variant variantData = inputRecord.getVariant(fieldNameToPosition.get("data")); + String avroSchema = getStringColumnValue(inputRecord, "avro_schema"); + String avroSchemaId = getStringColumnValue(inputRecord, "avro_schema_id"); Review Comment: Constants -- This is an automated message from the Apache Git Service. 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