| /* |
| * 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.spark.sql.secondaryindex.events |
| |
| import scala.collection.JavaConverters._ |
| |
| import org.apache.log4j.Logger |
| import org.apache.spark.internal.Logging |
| import org.apache.spark.sql.{CarbonEnv, SparkSession} |
| import org.apache.spark.sql.hive.CarbonRelation |
| import org.apache.spark.sql.index.CarbonIndexUtil |
| import org.apache.spark.sql.secondaryindex.command.IndexModel |
| |
| import org.apache.carbondata.common.logging.LogServiceFactory |
| import org.apache.carbondata.core.constants.CarbonCommonConstants |
| import org.apache.carbondata.core.metadata.index.IndexType |
| import org.apache.carbondata.core.metadata.schema.indextable.IndexMetadata |
| import org.apache.carbondata.events._ |
| import org.apache.carbondata.processing.loading.events.LoadEvents.LoadTablePreStatusUpdateEvent |
| |
| class SILoadEventListener extends OperationEventListener with Logging { |
| |
| val LOGGER: Logger = LogServiceFactory.getLogService(this.getClass.getCanonicalName) |
| |
| /** |
| * Called on a specified event occurrence |
| * |
| */ |
| override def onEvent(event: Event, operationContext: OperationContext): Unit = { |
| event match { |
| case _: LoadTablePreStatusUpdateEvent => |
| if (operationContext.getProperty("isAddLoad") != null && |
| operationContext.getProperty("isAddLoad").toString.toBoolean) { |
| return |
| } |
| LOGGER.info("Load pre status update event-listener called") |
| val loadTablePreStatusUpdateEvent = event.asInstanceOf[LoadTablePreStatusUpdateEvent] |
| val carbonLoadModel = loadTablePreStatusUpdateEvent.getCarbonLoadModel |
| val sparkSession = SparkSession.getActiveSession.get |
| // when Si creation and load to main table are parallel, get the carbonTable from the |
| // metastore which will have the latest index Info |
| val metaStore = CarbonEnv.getInstance(sparkSession).carbonMetaStore |
| val carbonTable = metaStore |
| .lookupRelation(Some(carbonLoadModel.getDatabaseName), |
| carbonLoadModel.getTableName)(sparkSession).asInstanceOf[CarbonRelation].carbonTable |
| val indexMetadata = carbonTable.getIndexMetadata |
| val secondaryIndexProvider = IndexType.SI.getIndexProviderName |
| if (null != indexMetadata && null != indexMetadata.getIndexesMap && |
| null != indexMetadata.getIndexesMap.get(secondaryIndexProvider)) { |
| val indexTables = indexMetadata.getIndexesMap |
| .get(secondaryIndexProvider).keySet().asScala |
| // if there are no index tables for a given fact table do not perform any action |
| if (indexTables.nonEmpty) { |
| indexTables.foreach { |
| indexTableName => |
| val secondaryIndex = IndexModel(Some(carbonTable.getDatabaseName), |
| indexMetadata.getParentTableName, |
| indexMetadata |
| .getIndexColumns(secondaryIndexProvider, indexTableName).split(",").toList, |
| indexTableName) |
| |
| val metaStore = CarbonEnv.getInstance(sparkSession).carbonMetaStore |
| val indexTable = metaStore |
| .lookupRelation(Some(carbonLoadModel.getDatabaseName), |
| indexTableName)(sparkSession).asInstanceOf[CarbonRelation].carbonTable |
| |
| CarbonIndexUtil |
| .LoadToSITable(sparkSession, |
| carbonLoadModel, |
| indexTableName, |
| isLoadToFailedSISegments = false, |
| secondaryIndex, |
| carbonTable, indexTable) |
| } |
| } else { |
| logInfo(s"No index tables found for table: ${carbonTable.getTableName}") |
| } |
| } else { |
| logInfo(s"Index information is null for table: ${carbonTable.getTableName}") |
| } |
| } |
| } |
| } |