| /* |
| * 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.calcite.adapter.arrow; |
| |
| import org.apache.calcite.model.ModelHandler; |
| import org.apache.calcite.schema.Schema; |
| import org.apache.calcite.schema.SchemaFactory; |
| import org.apache.calcite.schema.SchemaPlus; |
| |
| import java.io.File; |
| import java.util.Map; |
| |
| /** |
| * Factory that creates an {@link ArrowSchema}. |
| */ |
| public class ArrowSchemaFactory implements SchemaFactory { |
| |
| @Override public Schema create(SchemaPlus parentSchema, String name, |
| Map<String, Object> operand) { |
| final File baseDirectory = |
| (File) operand.get(ModelHandler.ExtraOperand.BASE_DIRECTORY.camelName); |
| final String directory = (String) operand.get("directory"); |
| File directoryFile = null; |
| if (directory != null) { |
| directoryFile = new File(directory); |
| } |
| if (baseDirectory != null) { |
| if (directoryFile == null) { |
| directoryFile = baseDirectory; |
| } else if (!directoryFile.isAbsolute()) { |
| directoryFile = new File(baseDirectory, directoryFile.getPath()); |
| } |
| } |
| if (directoryFile == null) { |
| throw new RuntimeException("no directory"); |
| } |
| return new ArrowSchema(directoryFile); |
| } |
| } |