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[spark] Introduce reset_consumer procedure (#3614)
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111 changes: 111 additions & 0 deletions
111
...-spark-common/src/main/java/org/apache/paimon/spark/procedure/ResetConsumerProcedure.java
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.paimon.spark.procedure; | ||
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| import org.apache.paimon.consumer.Consumer; | ||
| import org.apache.paimon.consumer.ConsumerManager; | ||
| import org.apache.paimon.table.FileStoreTable; | ||
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| import org.apache.spark.sql.catalyst.InternalRow; | ||
| import org.apache.spark.sql.connector.catalog.Identifier; | ||
| import org.apache.spark.sql.connector.catalog.TableCatalog; | ||
| import org.apache.spark.sql.types.DataTypes; | ||
| import org.apache.spark.sql.types.Metadata; | ||
| import org.apache.spark.sql.types.StructField; | ||
| import org.apache.spark.sql.types.StructType; | ||
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| import static org.apache.spark.sql.types.DataTypes.LongType; | ||
| import static org.apache.spark.sql.types.DataTypes.StringType; | ||
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| /** | ||
| * Reset consumer procedure. Usage: | ||
| * | ||
| * <pre><code> | ||
| * -- reset the new next snapshot id in the consumer | ||
| * CALL sys.reset_consumer('tableId', 'consumerId', nextSnapshotId) | ||
| * | ||
| * -- delete consumer | ||
| * CALL sys.reset_consumer('tableId', 'consumerId') | ||
| * </code></pre> | ||
| */ | ||
| public class ResetConsumerProcedure extends BaseProcedure { | ||
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| private static final ProcedureParameter[] PARAMETERS = | ||
| new ProcedureParameter[] { | ||
| ProcedureParameter.required("table", StringType), | ||
| ProcedureParameter.required("consumerId", StringType), | ||
| ProcedureParameter.optional("nextSnapshotId", LongType) | ||
| }; | ||
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| private static final StructType OUTPUT_TYPE = | ||
| new StructType( | ||
| new StructField[] { | ||
| new StructField("result", DataTypes.BooleanType, true, Metadata.empty()) | ||
| }); | ||
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| protected ResetConsumerProcedure(TableCatalog tableCatalog) { | ||
| super(tableCatalog); | ||
| } | ||
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| @Override | ||
| public ProcedureParameter[] parameters() { | ||
| return PARAMETERS; | ||
| } | ||
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| @Override | ||
| public StructType outputType() { | ||
| return OUTPUT_TYPE; | ||
| } | ||
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| @Override | ||
| public InternalRow[] call(InternalRow args) { | ||
| Identifier tableIdent = toIdentifier(args.getString(0), PARAMETERS[0].name()); | ||
| String consumerId = args.getString(1); | ||
| Long nextSnapshotId = args.isNullAt(2) ? null : args.getLong(2); | ||
| return modifyPaimonTable( | ||
| tableIdent, | ||
| table -> { | ||
| FileStoreTable fileStoreTable = (FileStoreTable) table; | ||
| ConsumerManager consumerManager = | ||
| new ConsumerManager(fileStoreTable.fileIO(), fileStoreTable.location()); | ||
| if (nextSnapshotId == null) { | ||
| consumerManager.deleteConsumer(consumerId); | ||
| } else { | ||
| consumerManager.resetConsumer(consumerId, new Consumer(nextSnapshotId)); | ||
| } | ||
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| InternalRow outputRow = newInternalRow(true); | ||
| return new InternalRow[] {outputRow}; | ||
| }); | ||
| } | ||
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| public static ProcedureBuilder builder() { | ||
| return new Builder<ResetConsumerProcedure>() { | ||
| @Override | ||
| public ResetConsumerProcedure doBuild() { | ||
| return new ResetConsumerProcedure(tableCatalog()); | ||
| } | ||
| }; | ||
| } | ||
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| @Override | ||
| public String description() { | ||
| return "ResetConsumerProcedure"; | ||
| } | ||
| } |