matriv commented on a change in pull request #18479: URL: https://github.com/apache/flink/pull/18479#discussion_r795451478
########## File path: flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/plan/utils/ExecNodeMetadataUtil.java ########## @@ -0,0 +1,262 @@ +/* + * 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.planner.plan.utils; + +import org.apache.flink.annotation.VisibleForTesting; +import org.apache.flink.table.planner.plan.nodes.exec.ExecNode; +import org.apache.flink.table.planner.plan.nodes.exec.ExecNodeMetadata; +import org.apache.flink.table.planner.plan.nodes.exec.ExecNodeMetadatas; +import org.apache.flink.table.planner.plan.nodes.exec.serde.JsonSerdeUtil; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecCalc; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecChangelogNormalize; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecCorrelate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecDeduplicate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecDropUpdateBefore; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecExchange; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecExpand; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecGlobalGroupAggregate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecGlobalWindowAggregate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecGroupAggregate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecGroupWindowAggregate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecIncrementalGroupAggregate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecIntervalJoin; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecJoin; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecLimit; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecLocalGroupAggregate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecLocalWindowAggregate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecLookupJoin; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecMatch; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecMiniBatchAssigner; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecOverAggregate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecPythonCalc; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecPythonCorrelate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecPythonGroupAggregate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecPythonGroupWindowAggregate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecPythonOverAggregate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecRank; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecSink; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecSortLimit; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecTableSourceScan; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecTemporalJoin; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecTemporalSort; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecUnion; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecValues; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecWatermarkAssigner; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecWindowAggregate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecWindowDeduplicate; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecWindowJoin; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecWindowRank; +import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecWindowTableFunction; + +import java.util.ArrayList; +import java.util.Comparator; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.Set; + +/** Utility class for ExecNodeMetadata related functionality. */ +public final class ExecNodeMetadataUtil { + + private ExecNodeMetadataUtil() { + // no instantiation + } + + private static final Map<ExecNodeNameVersion, Class<? extends ExecNode<?>>> lookupMap = + new HashMap<>(); + + private static final Set<Class<? extends ExecNode<?>>> execNodes = new HashSet<>(); + + static { + execNodes.add(StreamExecCalc.class); + execNodes.add(StreamExecChangelogNormalize.class); + execNodes.add(StreamExecCorrelate.class); + execNodes.add(StreamExecDeduplicate.class); + execNodes.add(StreamExecDropUpdateBefore.class); + execNodes.add(StreamExecExchange.class); + execNodes.add(StreamExecExpand.class); + execNodes.add(StreamExecGlobalGroupAggregate.class); + execNodes.add(StreamExecGlobalWindowAggregate.class); + execNodes.add(StreamExecGroupAggregate.class); + execNodes.add(StreamExecGroupWindowAggregate.class); + execNodes.add(StreamExecIncrementalGroupAggregate.class); + execNodes.add(StreamExecIntervalJoin.class); + execNodes.add(StreamExecJoin.class); + execNodes.add(StreamExecLimit.class); + execNodes.add(StreamExecLocalGroupAggregate.class); + execNodes.add(StreamExecLocalWindowAggregate.class); + execNodes.add(StreamExecLookupJoin.class); + execNodes.add(StreamExecMatch.class); + execNodes.add(StreamExecMiniBatchAssigner.class); + execNodes.add(StreamExecOverAggregate.class); + execNodes.add(StreamExecPythonCalc.class); + execNodes.add(StreamExecPythonCorrelate.class); + execNodes.add(StreamExecPythonGroupAggregate.class); + execNodes.add(StreamExecPythonGroupWindowAggregate.class); + execNodes.add(StreamExecPythonOverAggregate.class); + execNodes.add(StreamExecRank.class); + execNodes.add(StreamExecSink.class); + execNodes.add(StreamExecSortLimit.class); + execNodes.add(StreamExecTableSourceScan.class); + execNodes.add(StreamExecTemporalJoin.class); + execNodes.add(StreamExecTemporalSort.class); + execNodes.add(StreamExecUnion.class); + execNodes.add(StreamExecValues.class); + execNodes.add(StreamExecWatermarkAssigner.class); + execNodes.add(StreamExecWindowAggregate.class); + execNodes.add(StreamExecWindowDeduplicate.class); + execNodes.add(StreamExecWindowJoin.class); + execNodes.add(StreamExecWindowRank.class); + execNodes.add(StreamExecWindowTableFunction.class); + } + + static { + for (Class<? extends ExecNode<?>> execNodeClass : execNodes) { + addToLookupMap(execNodeClass); + } + } + + public static Set<Class<? extends ExecNode<?>>> execNodes() { + return execNodes; + } + + public static Class<? extends ExecNode<?>> retrieveExecNode(String name, int version) { + return lookupMap.get(new ExecNodeNameVersion(name, version)); + } + + @VisibleForTesting + static void addTestNode(Class<? extends ExecNode<?>> execNodeClass) { + addToLookupMap(execNodeClass); + } + + @SuppressWarnings("rawtypes") + private static List<ExecNodeMetadata> extractMetadataFromAnnotation( + Class<? extends ExecNode> execNodeClass) { + List<ExecNodeMetadata> metadata = new ArrayList<>(); + ExecNodeMetadata annotation = execNodeClass.getDeclaredAnnotation(ExecNodeMetadata.class); + if (annotation != null) { + metadata.add(annotation); + } + + ExecNodeMetadatas annotations = Review comment: With the "wrapper" `MultipleExecNodeMetadata` we can allow multiple individual `ExecNodeMetadata` annotations or a single `MultipleExecNodeMetadata`, where the `value` is an array of `ExecNodeMetadata`, but apparently java allows to have 2 annotations as well, one `MultipleExecNodeMetadata` and one `ExecNodeMetadata`, so we're checking this as not allowed. -- This is an automated message from the Apache Git Service. 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