wwj6591812 commented on code in PR #4348: URL: https://github.com/apache/paimon/pull/4348#discussion_r1807152039
########## paimon-flink/paimon-flink-common/src/main/java/org/apache/paimon/flink/source/assigners/DynamicPartitionPruningPreAssignSplitAssigner.java: ########## @@ -0,0 +1,60 @@ +/* + * 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.paimon.flink.source.assigners; + +import org.apache.paimon.codegen.Projection; +import org.apache.paimon.data.BinaryRow; +import org.apache.paimon.flink.FlinkRowData; +import org.apache.paimon.flink.source.FileStoreSourceSplit; +import org.apache.paimon.table.source.DataSplit; + +import org.apache.flink.table.connector.source.DynamicFilteringData; + +import java.util.Collection; +import java.util.stream.Collectors; + +/** + * Pre-calculate which splits each task should process by given {@link DynamicFilteringData}, and + * then distribute the splits fairly. + */ +public class DynamicPartitionPruningPreAssignSplitAssigner extends PreAssignSplitAssigner { Review Comment: May be this class doesn't need. You could move filter logic to PreAssignSplitAssigner. ########## paimon-flink/paimon-flink-common/src/main/java/org/apache/paimon/flink/source/assigners/DynamicPartitionPruningPreAssignSplitAssigner.java: ########## @@ -0,0 +1,60 @@ +/* + * 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.paimon.flink.source.assigners; + +import org.apache.paimon.codegen.Projection; +import org.apache.paimon.data.BinaryRow; +import org.apache.paimon.flink.FlinkRowData; +import org.apache.paimon.flink.source.FileStoreSourceSplit; +import org.apache.paimon.table.source.DataSplit; + +import org.apache.flink.table.connector.source.DynamicFilteringData; + +import java.util.Collection; +import java.util.stream.Collectors; + +/** + * Pre-calculate which splits each task should process by given {@link DynamicFilteringData}, and + * then distribute the splits fairly. + */ +public class DynamicPartitionPruningPreAssignSplitAssigner extends PreAssignSplitAssigner { + public DynamicPartitionPruningPreAssignSplitAssigner( + int splitBatchSize, + int parallelism, + Collection<FileStoreSourceSplit> splits, + Projection partitionRowProjection, + DynamicFilteringData dynamicFilteringData) { + super( + splitBatchSize, + parallelism, + splits.stream() + .filter(s -> filter(partitionRowProjection, dynamicFilteringData, s)) + .collect(Collectors.toList())); + } + + private static boolean filter( Review Comment: Change DynamicPartitionPruningAssigner#filter to public static, and then delete DynamicPartitionPruningPreAssignSplitAssigner#filter? ########## paimon-flink/paimon-flink-common/src/main/java/org/apache/paimon/flink/source/assigners/DynamicPartitionPruningPreAssignSplitAssigner.java: ########## @@ -0,0 +1,60 @@ +/* + * 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.paimon.flink.source.assigners; + +import org.apache.paimon.codegen.Projection; +import org.apache.paimon.data.BinaryRow; +import org.apache.paimon.flink.FlinkRowData; +import org.apache.paimon.flink.source.FileStoreSourceSplit; +import org.apache.paimon.table.source.DataSplit; + +import org.apache.flink.table.connector.source.DynamicFilteringData; + +import java.util.Collection; +import java.util.stream.Collectors; + +/** + * Pre-calculate which splits each task should process by given {@link DynamicFilteringData}, and + * then distribute the splits fairly. + */ +public class DynamicPartitionPruningPreAssignSplitAssigner extends PreAssignSplitAssigner { + public DynamicPartitionPruningPreAssignSplitAssigner( Review Comment: add a blank line ########## paimon-flink/paimon-flink-common/src/main/java/org/apache/paimon/flink/source/assigners/DynamicPartitionPruningPreAssignSplitAssigner.java: ########## @@ -0,0 +1,60 @@ +/* + * 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.paimon.flink.source.assigners; + +import org.apache.paimon.codegen.Projection; +import org.apache.paimon.data.BinaryRow; +import org.apache.paimon.flink.FlinkRowData; +import org.apache.paimon.flink.source.FileStoreSourceSplit; +import org.apache.paimon.table.source.DataSplit; + +import org.apache.flink.table.connector.source.DynamicFilteringData; + +import java.util.Collection; +import java.util.stream.Collectors; + +/** + * Pre-calculate which splits each task should process by given {@link DynamicFilteringData}, and + * then distribute the splits fairly. + */ +public class DynamicPartitionPruningPreAssignSplitAssigner extends PreAssignSplitAssigner { + public DynamicPartitionPruningPreAssignSplitAssigner( + int splitBatchSize, + int parallelism, + Collection<FileStoreSourceSplit> splits, + Projection partitionRowProjection, + DynamicFilteringData dynamicFilteringData) { + super( + splitBatchSize, + parallelism, + splits.stream() + .filter(s -> filter(partitionRowProjection, dynamicFilteringData, s)) + .collect(Collectors.toList())); + } + + private static boolean filter( Review Comment: why static？ -- This is an automated message from the Apache Git Service. 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