/* * Copyright (c) 2016 Villu Ruusmann * * This file is part of JPMML-Evaluator * * JPMML-Evaluator is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * JPMML-Evaluator is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with JPMML-Evaluator. If not, see <http://www.gnu.org/licenses/>. */ package org.jpmml.evaluator.spark; import org.apache.spark.sql.types.DataTypes; import org.apache.spark.sql.types.StructField; import org.dmg.pmml.DataType; import org.jpmml.evaluator.Evaluator; import org.jpmml.evaluator.OutputField; class OutputColumnProducer extends ColumnProducer<OutputField> { private boolean formatString = false; OutputColumnProducer(OutputField field, String columnName){ super(field, columnName != null ? columnName : getName(field)); } @Override public StructField init(Evaluator evaluator){ OutputField field = getField(); DataType dataType = field.getDataType(); if(dataType == null){ dataType = DataType.STRING; this.formatString = true; } return DataTypes.createStructField(getColumnName(), SchemaUtil.translateDataType(dataType), false); } @Override public Object format(Object value){ if(this.formatString){ return value.toString(); } return value; } static private String getName(OutputField field){ return (field.getName()).getValue(); } }