twalthr commented on a change in pull request #15588: URL: https://github.com/apache/flink/pull/15588#discussion_r614860286
########## File path: flink-table/flink-table-planner-blink/src/main/java/org/apache/flink/table/planner/connectors/CollectDynamicSink.java ########## @@ -0,0 +1,122 @@ +/* + * 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.connectors; + +import org.apache.flink.annotation.Internal; +import org.apache.flink.api.common.ExecutionConfig; +import org.apache.flink.api.common.typeutils.TypeSerializer; +import org.apache.flink.core.execution.JobClient; +import org.apache.flink.streaming.api.environment.CheckpointConfig; +import org.apache.flink.streaming.api.operators.collect.CollectResultIterator; +import org.apache.flink.streaming.api.operators.collect.CollectSinkOperator; +import org.apache.flink.streaming.api.operators.collect.CollectSinkOperatorFactory; +import org.apache.flink.streaming.api.operators.collect.CollectStreamSink; +import org.apache.flink.table.api.TableResult; +import org.apache.flink.table.api.internal.CollectResultProvider; +import org.apache.flink.table.catalog.ObjectIdentifier; +import org.apache.flink.table.connector.ChangelogMode; +import org.apache.flink.table.connector.sink.DataStreamSinkProvider; +import org.apache.flink.table.connector.sink.DynamicTableSink; +import org.apache.flink.table.data.RowData; +import org.apache.flink.table.runtime.typeutils.ExternalTypeInfo; +import org.apache.flink.table.types.DataType; +import org.apache.flink.types.Row; +import org.apache.flink.util.CloseableIterator; + +/** Table sink for {@link TableResult#collect()}. */ +@Internal +final class CollectDynamicSink implements DynamicTableSink { + + private final ObjectIdentifier tableIdentifier; + + private final DataType consumedDataType; + + // mutable attributes + + private CollectResultIterator<RowData> iterator; + + CollectDynamicSink(ObjectIdentifier tableIdentifier, DataType consumedDataType) { + this.tableIdentifier = tableIdentifier; + this.consumedDataType = consumedDataType; + } + + public CollectResultProvider getSelectResultProvider() { + return new CollectResultProvider() { + @Override + public void setJobClient(JobClient jobClient) { + iterator.setJobClient(jobClient); + } + + @Override + @SuppressWarnings({"unchecked", "rawtypes"}) + public CloseableIterator<Row> getResultIterator() { + // Row after deserialization + return (CloseableIterator) iterator; + } + }; + } + + @Override + public ChangelogMode getChangelogMode(ChangelogMode requestedMode) { + return requestedMode; + } + + @Override + public SinkRuntimeProvider getSinkRuntimeProvider(Context context) { + return (DataStreamSinkProvider) + inputStream -> { + final CheckpointConfig checkpointConfig = + inputStream.getExecutionEnvironment().getCheckpointConfig(); + final ExecutionConfig config = inputStream.getExecutionConfig(); + + final TypeSerializer<RowData> externalSerializer = + ExternalTypeInfo.<RowData>of(consumedDataType, true) + .createSerializer(config); + final String accumulatorName = tableIdentifier.getObjectName(); + + final CollectSinkOperatorFactory<RowData> factory = + new CollectSinkOperatorFactory<>(externalSerializer, accumulatorName); + final CollectSinkOperator<RowData> operator = + (CollectSinkOperator<RowData>) factory.getOperator(); + + this.iterator = + new CollectResultIterator<>( + operator.getOperatorIdFuture(), + externalSerializer, + accumulatorName, + checkpointConfig); + + final CollectStreamSink<RowData> sink = + new CollectStreamSink<>(inputStream, factory); + return sink.name("Collect table sink"); + }; + } + + @Override + public DynamicTableSink copy() { + final CollectDynamicSink copy = new CollectDynamicSink(tableIdentifier, consumedDataType); + copy.iterator = iterator; Review comment: True, but the copy method is only called during optimization phase (not before runtime provider getter). So it should not be a problem for this special sink. I will add a comment. -- 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]
