sql/connector/JavaSimpleDataSourceV2.java

0001 /*
0002  * Licensed to the Apache Software Foundation (ASF) under one or more
0003  * contributor license agreements.  See the NOTICE file distributed with
0004  * this work for additional information regarding copyright ownership.
0005  * The ASF licenses this file to You under the Apache License, Version 2.0
0006  * (the "License"); you may not use this file except in compliance with
0007  * the License.  You may obtain a copy of the License at
0008  *
0009  *    http://www.apache.org/licenses/LICENSE-2.0
0010  *
0011  * Unless required by applicable law or agreed to in writing, software
0012  * distributed under the License is distributed on an "AS IS" BASIS,
0013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0014  * See the License for the specific language governing permissions and
0015  * limitations under the License.
0016  */
0017
0018 package test.org.apache.spark.sql.connector;
0019
0020 import org.apache.spark.sql.connector.TestingV2Source;
0021 import org.apache.spark.sql.connector.catalog.Table;
0022 import org.apache.spark.sql.connector.read.InputPartition;
0023 import org.apache.spark.sql.connector.read.ScanBuilder;
0024 import org.apache.spark.sql.util.CaseInsensitiveStringMap;
0025
0026 public class JavaSimpleDataSourceV2 implements TestingV2Source {
0027
0028   class MyScanBuilder extends JavaSimpleScanBuilder {
0029
0030     @Override
0031     public InputPartition[] planInputPartitions() {
0032       InputPartition[] partitions = new InputPartition[2];
0033       partitions[0] = new JavaRangeInputPartition(0, 5);
0034       partitions[1] = new JavaRangeInputPartition(5, 10);
0035       return partitions;
0036     }
0037   }
0038
0039   @Override
0040   public Table getTable(CaseInsensitiveStringMap options) {
0041     return new JavaSimpleBatchTable() {
0042       @Override
0043       public ScanBuilder newScanBuilder(CaseInsensitiveStringMap options) {
0044         return new MyScanBuilder();
0045       }
0046     };
0047   }
0048 }