guoweiM commented on a change in pull request #13824: URL: https://github.com/apache/flink/pull/13824#discussion_r514346615
########## File path: flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/translators/SinkTransformationTranslator.java ########## @@ -0,0 +1,283 @@ +/* + * 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.streaming.runtime.translators; + +import org.apache.flink.annotation.Internal; +import org.apache.flink.api.common.ExecutionConfig; +import org.apache.flink.api.common.typeinfo.TypeInformation; +import org.apache.flink.api.connector.sink.Sink; +import org.apache.flink.api.dag.Transformation; +import org.apache.flink.api.java.typeutils.TypeExtractor; +import org.apache.flink.streaming.api.graph.StreamGraph; +import org.apache.flink.streaming.api.graph.TransformationTranslator; +import org.apache.flink.streaming.api.operators.ChainingStrategy; +import org.apache.flink.streaming.api.operators.OneInputStreamOperatorFactory; +import org.apache.flink.streaming.api.operators.StreamOperatorFactory; +import org.apache.flink.streaming.api.transformations.SinkTransformation; +import org.apache.flink.streaming.runtime.operators.sink.BatchCommitterOperatorFactory; +import org.apache.flink.streaming.runtime.operators.sink.BatchGlobalCommitterOperatorFactory; +import org.apache.flink.streaming.runtime.operators.sink.GlobalStreamingCommitterOperatorFactory; +import org.apache.flink.streaming.runtime.operators.sink.StatefulWriterOperatorFactory; +import org.apache.flink.streaming.runtime.operators.sink.StatelessWriterOperatorFactory; +import org.apache.flink.streaming.runtime.operators.sink.StreamingCommitterOperatorFactory; +import org.apache.flink.streaming.util.graph.StreamGraphUtils; + +import java.util.Collection; +import java.util.Collections; + +/** + * A {@link TransformationTranslator} for the {@link SinkTransformation}. + */ +@Internal +public class SinkTransformationTranslator<InputT, CommT, WriterStateT, GlobalCommT> implements + TransformationTranslator<Object, SinkTransformation<InputT, CommT, WriterStateT, GlobalCommT>> { + + @Override + public Collection<Integer> translateForBatch( + SinkTransformation<InputT, CommT, WriterStateT, GlobalCommT> transformation, + Context context) { + + StreamGraphUtils.validateTransformationUid(context.getStreamGraph(), transformation); + + int writerId = addWriter(transformation, context); + int committerId = addCommitter( + writerId, + transformation, + new BatchCommitterOperatorFactory<>(transformation.getSink()), + context); + addGlobalCommitter( + committerId >= 0 ? committerId : writerId, + transformation, + new BatchGlobalCommitterOperatorFactory<>(transformation.getSink()), + context); + return Collections.emptyList(); + } + + @Override + public Collection<Integer> translateForStreaming( + SinkTransformation<InputT, CommT, WriterStateT, GlobalCommT> transformation, + Context context) { + + StreamGraphUtils.validateTransformationUid(context.getStreamGraph(), transformation); + + int writerId = addWriter(transformation, context); + int committerId = addCommitter( + writerId, + transformation, + new StreamingCommitterOperatorFactory<>(transformation.getSink()), + context); + addGlobalCommitter( + committerId >= 0 ? committerId : writerId, + transformation, + new GlobalStreamingCommitterOperatorFactory<>(transformation.getSink()), + context); + + return Collections.emptyList(); + } + + /** + * Add a sink writer node to the stream graph. + * + * @param sinkTransformation The transformation that the writer belongs to + * + * @return The stream node id of the writer + */ + private int addWriter( + SinkTransformation<InputT, CommT, WriterStateT, GlobalCommT> sinkTransformation, + Context context) { + final boolean hasState = sinkTransformation + .getSink() + .getWriterStateSerializer() + .isPresent(); + final TypeInformation<CommT> outTypeInfo = TypeExtractor.createTypeInfo( Review comment: yes. ---------------------------------------------------------------- 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]
