| /* |
| * 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.griffin.measure.context |
| |
| import scala.collection.mutable.{Set => MutableSet} |
| |
| import org.apache.spark.sql._ |
| |
| import org.apache.griffin.measure.Loggable |
| |
| /** |
| * register table name |
| */ |
| trait TableRegister extends Loggable with Serializable { |
| |
| protected val tables: MutableSet[String] = MutableSet() |
| |
| def registerTable(name: String): Unit = { |
| tables += name |
| } |
| |
| def existsTable(name: String): Boolean = { |
| tables.exists(_.equals(name)) |
| } |
| |
| def unregisterTable(name: String): Unit = { |
| if (existsTable(name)) tables -= name |
| } |
| def unregisterAllTables(): Unit = { |
| tables.clear |
| } |
| |
| def getTables: Set[String] = { |
| tables.toSet |
| } |
| |
| } |
| |
| /** |
| * register table name when building dq job |
| */ |
| case class CompileTableRegister() extends TableRegister {} |
| |
| /** |
| * register table name and create temp view during calculation |
| */ |
| case class RunTimeTableRegister(@transient sparkSession: SparkSession) extends TableRegister { |
| |
| def registerTable(name: String, df: DataFrame): Unit = { |
| registerTable(name) |
| df.createOrReplaceTempView(name) |
| } |
| |
| override def unregisterTable(name: String): Unit = { |
| if (existsTable(name)) { |
| sparkSession.catalog.dropTempView(name) |
| tables -= name |
| } |
| } |
| override def unregisterAllTables(): Unit = { |
| val uts = getTables |
| uts.foreach(t => sparkSession.catalog.dropTempView(t)) |
| tables.clear |
| } |
| |
| } |