| /* |
| * 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.carbondata.spark.adapter |
| |
| import scala.collection.mutable.ArrayBuffer |
| |
| import org.apache.spark.sql.catalyst.expressions.{Alias, AttributeReference, ExprId, Expression, NamedExpression} |
| import org.apache.spark.sql.execution.datasources.{FilePartition, PartitionedFile} |
| import org.apache.spark.sql.types.{DataType, Metadata} |
| |
| object CarbonToSparkAdapter { |
| def createFilePartition(index: Int, files: ArrayBuffer[PartitionedFile]) = { |
| FilePartition(index, files.toArray) |
| } |
| |
| def createAttributeReference( |
| name: String, |
| dataType: DataType, |
| nullable: Boolean, |
| metadata: Metadata, |
| exprId: ExprId, |
| qualifier: Option[String], |
| attrRef : NamedExpression = null): AttributeReference = { |
| val qf = if (qualifier.nonEmpty) Seq(qualifier.get) else Seq.empty |
| AttributeReference( |
| name, |
| dataType, |
| nullable, |
| metadata)(exprId, qf) |
| } |
| |
| def createAliasRef( |
| child: Expression, |
| name: String, |
| exprId: ExprId = NamedExpression.newExprId, |
| qualifier: Option[String] = None, |
| explicitMetadata: Option[Metadata] = None, |
| namedExpr : Option[NamedExpression] = None ) : Alias = { |
| Alias(child, name)( |
| exprId, |
| if (qualifier.nonEmpty) Seq(qualifier.get) else Seq(), |
| explicitMetadata) |
| } |
| } |