hequn8128 commented on a change in pull request #11020: [FLINK-15913][python] Add Python TableFunction Runner and Operator in old planner URL: https://github.com/apache/flink/pull/11020#discussion_r376374541
########## File path: flink-python/src/main/java/org/apache/flink/table/runtime/operators/python/AbstractPythonTableFunctionOperator.java ########## @@ -0,0 +1,77 @@ +/* + * 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.flink.table.runtime.operators.python; + +import org.apache.flink.annotation.Internal; +import org.apache.flink.configuration.Configuration; +import org.apache.flink.table.functions.TableFunction; +import org.apache.flink.table.functions.python.PythonEnv; +import org.apache.flink.table.functions.python.PythonFunctionInfo; +import org.apache.flink.table.types.logical.RowType; +import org.apache.flink.util.Preconditions; + +import java.util.ArrayList; +import java.util.List; + +/** + * @param <IN> Type of the input elements. + * @param <OUT> Type of the output elements. + * @param <UDTFIN> Type of the UDTF input type. + */ +@Internal +public abstract class AbstractPythonTableFunctionOperator<IN, OUT, UDTFIN> + extends AbstractStatelessFunctionOperator<IN, OUT, UDTFIN> { + + private static final long serialVersionUID = 1L; + + /** + * The Python {@link TableFunction} to be executed. + */ + protected final PythonFunctionInfo tableFunction; + + public AbstractPythonTableFunctionOperator( + Configuration config, + PythonFunctionInfo tableFunction, + RowType inputType, + RowType outputType, + int[] udtfInputOffsets) { + super(config, inputType, outputType, udtfInputOffsets); + this.tableFunction = Preconditions.checkNotNull(tableFunction); + } + + @Override + public void open() throws Exception { + List<RowType.RowField> udtfOutputDataFields = new ArrayList<>( + outputType.getFields().subList(inputType.getFieldCount(), outputType.getFieldCount())); + udfOutputType = new RowType(udtfOutputDataFields); + super.open(); + } + + @Override + public PythonEnv getPythonEnv() { + return tableFunction.getPythonFunction().getPythonEnv(); + } + + /** + * The received udtf execution result is a finish message when it is a byte 0x00. Review comment: when it is a byte 0x00 => when it is a byte with value 0x00 ---------------------------------------------------------------- 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: us...@infra.apache.org With regards, Apache Git Services
