| /* |
| * 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.sql.CarbonEnv |
| |
| import org.apache.carbondata.common.logging.LogServiceFactory |
| import org.apache.carbondata.core.metadata.index.IndexType |
| import org.apache.carbondata.core.metadata.schema.indextable.IndexMetadata |
| import org.apache.carbondata.events.{Event, OperationContext, OperationEventListener, ShowTableCacheEvent} |
| |
| object ShowCacheSIEventListener extends OperationEventListener { |
| |
| 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 showTableCacheEvent: ShowTableCacheEvent => |
| val carbonTable = showTableCacheEvent.carbonTable |
| val sparkSession = showTableCacheEvent.sparkSession |
| val internalCall = showTableCacheEvent.internalCall |
| if (carbonTable.isIndexTable && !internalCall) { |
| throw new UnsupportedOperationException("Operation not allowed on index table.") |
| } |
| |
| val childTables = operationContext.getProperty(carbonTable.getTableUniqueName) |
| .asInstanceOf[List[(String, String)]] |
| |
| val indexTables = carbonTable.getIndexTableNames( |
| IndexType.SI.getIndexProviderName).asScala |
| // if there are no index tables for a given fact table do not perform any action |
| operationContext.setProperty(carbonTable.getTableUniqueName, indexTables.map { |
| indexTable => |
| val indexCarbonTable = CarbonEnv.getCarbonTable(Some(carbonTable.getDatabaseName), |
| indexTable)(sparkSession) |
| (carbonTable.getDatabaseName + "-" + |
| indexTable, "Secondary Index", indexCarbonTable.getTableId) |
| }.toList ++ childTables) |
| } |
| } |
| } |