rdblue commented on a change in pull request #1096: URL: https://github.com/apache/iceberg/pull/1096#discussion_r436037647
########## File path: flink/src/main/java/org/apache/iceberg/flink/FlinkTypeToType.java ########## @@ -0,0 +1,142 @@ +/* + * 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; + +import java.util.List; +import java.util.Map; +import org.apache.flink.api.java.tuple.Tuple2; +import org.apache.flink.table.types.AtomicDataType; +import org.apache.flink.table.types.CollectionDataType; +import org.apache.flink.table.types.DataType; +import org.apache.flink.table.types.FieldsDataType; +import org.apache.flink.table.types.KeyValueDataType; +import org.apache.flink.table.types.logical.BigIntType; +import org.apache.flink.table.types.logical.BinaryType; +import org.apache.flink.table.types.logical.BooleanType; +import org.apache.flink.table.types.logical.CharType; +import org.apache.flink.table.types.logical.DateType; +import org.apache.flink.table.types.logical.DecimalType; +import org.apache.flink.table.types.logical.DoubleType; +import org.apache.flink.table.types.logical.FloatType; +import org.apache.flink.table.types.logical.IntType; +import org.apache.flink.table.types.logical.LogicalType; +import org.apache.flink.table.types.logical.SmallIntType; +import org.apache.flink.table.types.logical.TimeType; +import org.apache.flink.table.types.logical.TimestampType; +import org.apache.flink.table.types.logical.TinyIntType; +import org.apache.flink.table.types.logical.VarBinaryType; +import org.apache.flink.table.types.logical.VarCharType; +import org.apache.iceberg.relocated.com.google.common.collect.Lists; +import org.apache.iceberg.types.Type; +import org.apache.iceberg.types.Types; + +public class FlinkTypeToType extends FlinkTypeVisitor<Type> { + private final FieldsDataType root; + private int nextId = 0; + + FlinkTypeToType(FieldsDataType root) { + this.root = root; + // the root struct's fields use the first ids + this.nextId = root.getFieldDataTypes().size(); + } + + private int getNextId() { + int next = nextId; + nextId += 1; + return next; + } + + @Override + public Type fields(FieldsDataType dataType, Map<String, Tuple2<String, Type>> types) { + List<Types.NestedField> newFields = Lists.newArrayListWithExpectedSize(types.size()); + boolean isRoot = root == dataType; + + Map<String, DataType> fieldsMap = dataType.getFieldDataTypes(); + int index = 0; + for (String name : types.keySet()) { + assert fieldsMap.containsKey(name); + DataType field = fieldsMap.get(name); + Tuple2<String, Type> tuple2 = types.get(name); Review comment: Using a name like `commentAndType` would help make it clear what's happening when the values are used. ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
