| /* |
| // Licensed to Julian Hyde under one or more contributor license |
| // agreements. See the NOTICE file distributed with this work for |
| // additional information regarding copyright ownership. |
| // |
| // Julian Hyde 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 net.hydromatic.optiq.impl.csv; |
| |
| import net.hydromatic.optiq.*; |
| |
| import org.eigenbase.reltype.*; |
| |
| import java.io.File; |
| import java.util.Map; |
| |
| /** |
| * Factory that creates a {@link CsvTable}. |
| * |
| * <p>Allows a CSV table to be included in a model.json file, even in a |
| * schema that is not based upon {@link CsvSchema}.</p> |
| */ |
| @SuppressWarnings("UnusedDeclaration") |
| public class CsvTableFactory implements TableFactory<CsvTable> { |
| // public constructor, per factory contract |
| public CsvTableFactory() { |
| } |
| |
| public CsvTable create(SchemaPlus schema, String name, |
| Map<String, Object> map, RelDataType rowType) { |
| String fileName = (String) map.get("file"); |
| Boolean smart = (Boolean) map.get("smart"); |
| final File file = new File(fileName); |
| final RelProtoDataType protoRowType = |
| rowType != null ? RelDataTypeImpl.proto(rowType) : null; |
| if (smart != null && smart) { |
| return new CsvSmartTable(file, protoRowType); |
| } else { |
| return new CsvTable(file, protoRowType); |
| } |
| } |
| } |
| |
| // End CsvTableFactory.java |