| /* |
| * 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.wayang.apps.tpch.data |
| |
| import org.apache.wayang.apps.tpch.CsvUtils |
| import org.apache.wayang.core.api.exception.WayangException |
| |
| /** |
| * Represents elements from the TPC-H `LINEITEM` table. |
| */ |
| case class LineItem(orderKey: Long, |
| partKey: Long, |
| suppKey: Long, |
| lineNumber: Int, |
| quantity: Double, |
| extendedPrice: Double, |
| discount: Double, |
| tax: Double, |
| returnFlag: Char, |
| lineStatus: Char, |
| shipDate: Int, |
| commitDate: Int, |
| receiptDate: Int, |
| shipInstruct: String, |
| shipMode: String, |
| comment: String) |
| |
| object LineItem { |
| |
| val fields = IndexedSeq("l_orderkey", |
| "l_partkey", |
| "l_suppkey", |
| "l_linenumber", |
| "l_quantity", |
| "l_extendedprice", |
| "l_discount", |
| "l_tax", |
| "l_returnflag", |
| "l_linestatus", |
| "l_shipdate", |
| "l_commitdate", |
| "l_receiptdate", |
| "l_shipinstruct", |
| "l_shipmode", |
| "l_comment") |
| |
| /** |
| * Parse a CSV row into a [[LineItem]] instance. |
| * |
| * @param csv the [[String]] to parse |
| * @return the [[LineItem]] |
| */ |
| def parseCsv(csv: String): LineItem = { |
| val fields = csv.split("\\|") |
| |
| try { |
| LineItem( |
| fields(0).toLong, |
| fields(1).toLong, |
| fields(2).toLong, |
| fields(3).toInt, |
| fields(4).toDouble, |
| fields(5).toDouble, |
| fields(6).toDouble, |
| fields(7).toDouble, |
| fields(8).charAt(0), |
| fields(9).charAt(0), |
| CsvUtils.parseDate(fields(10)), |
| CsvUtils.parseDate(fields(11)), |
| CsvUtils.parseDate(fields(12)), |
| fields(13), |
| fields(14), |
| fields(15) |
| ) |
| } catch { |
| case e: Exception => throw new WayangException(s"Could not parse '$csv' (${fields.mkString(", ")}.", e) |
| } |
| } |
| |
| } |