leesf commented on a change in pull request #2161: URL: https://github.com/apache/hudi/pull/2161#discussion_r502729805
########## File path: hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/client/common/HoodieFlinkEngineContext.java ########## @@ -0,0 +1,89 @@ +/* + * 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.hudi.client.common; + +import org.apache.hadoop.conf.Configuration; +import org.apache.hudi.client.common.function.SerializableConsumer; +import org.apache.hudi.client.common.function.SerializableFunction; +import org.apache.hudi.client.common.function.SerializablePairFunction; +import org.apache.hudi.common.config.SerializableConfiguration; +import org.apache.hudi.common.util.Option; + +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.stream.Collectors; +import java.util.stream.Stream; + +import static org.apache.hudi.client.common.function.FunctionWrapper.throwingFlatMapWrapper; +import static org.apache.hudi.client.common.function.FunctionWrapper.throwingForeachWrapper; +import static org.apache.hudi.client.common.function.FunctionWrapper.throwingMapToPairWrapper; +import static org.apache.hudi.client.common.function.FunctionWrapper.throwingMapWrapper; + +/** + * A flink engine implementation of HoodieEngineContext. + */ +public class HoodieFlinkEngineContext extends HoodieEngineContext { + + public HoodieFlinkEngineContext(TaskContextSupplier taskContextSupplier) { + this(new SerializableConfiguration(new Configuration()), taskContextSupplier); + } + + public HoodieFlinkEngineContext(SerializableConfiguration hadoopConf, TaskContextSupplier taskContextSupplier) { + super(hadoopConf, taskContextSupplier); + } + + @Override + public <I, O> List<O> map(List<I> data, SerializableFunction<I, O> func, int parallelism) { + return data.stream().parallel().map(throwingMapWrapper(func)).collect(Collectors.toList()); + } + + @Override + public <I, O> List<O> flatMap(List<I> data, SerializableFunction<I, Stream<O>> func, int parallelism) { + return data.stream().parallel().flatMap(throwingFlatMapWrapper(func)).collect(Collectors.toList()); + } + + @Override + public <I> void foreach(List<I> data, SerializableConsumer<I> consumer, int parallelism) { + data.forEach(throwingForeachWrapper(consumer)); + } + + @Override + public <I, K, V> Map<K, V> mapToPair(List<I> data, SerializablePairFunction<I, K, V> func, Integer parallelism) { + Map<K, V> map = new HashMap<>(); + data.stream().map(throwingMapToPairWrapper(func)).forEach(x -> map.put(x._1, x._2)); + return map; + } + + @Override + public void setProperty(EngineProperty key, String value) { + // no operation for now + } + + @Override + public Option<String> getProperty(EngineProperty key) { + // no operation for now + return Option.empty(); + } + + @Override + public void setJobStatus(String activeModule, String activityDescription) { + // no operation for now + } Review comment: maybe we would move the methods to super class as default implementation after finishing the flink integration. ---------------------------------------------------------------- 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]
