/* * Copyright (C) 2019 Ryan Murray * * Licensed 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.arrow.flight.spark; import org.apache.spark.SparkConf; import org.apache.spark.SparkContext; import org.apache.spark.api.java.JavaSparkContext; import org.apache.spark.sql.DataFrameReader; import org.apache.spark.sql.Dataset; import org.apache.spark.sql.Row; import org.apache.spark.sql.SQLContext; public class FlightSparkContext { private SparkConf conf; private final DataFrameReader reader; private FlightSparkContext(SparkContext sc, SparkConf conf) { SQLContext sqlContext = SQLContext.getOrCreate(sc); this.conf = conf; reader = sqlContext.read().format("org.apache.arrow.flight.spark"); } public static FlightSparkContext flightContext(JavaSparkContext sc) { return new FlightSparkContext(sc.sc(), sc.getConf()); } public Dataset<Row> read(String s) { return reader.option("port", Integer.parseInt(conf.get("spark.flight.endpoint.port"))) .option("host", conf.get("spark.flight.endpoint.host")) .option("username", conf.get("spark.flight.auth.username")) .option("password", conf.get("spark.flight.auth.password")) .option("parallel", false) .load(s); } public Dataset<Row> readSql(String s) { return reader.option("port", Integer.parseInt(conf.get("spark.flight.endpoint.port"))) .option("host", conf.get("spark.flight.endpoint.host")) .option("username", conf.get("spark.flight.auth.username")) .option("password", conf.get("spark.flight.auth.password")) .option("parallel", false) .load(s); } public Dataset<Row> read(String s, boolean parallel) { return reader.option("port", Integer.parseInt(conf.get("spark.flight.endpoint.port"))) .option("host", conf.get("spark.flight.endpoint.host")) .option("username", conf.get("spark.flight.auth.username")) .option("password", conf.get("spark.flight.auth.password")) .option("parallel", parallel) .load(s); } public Dataset<Row> readSql(String s, boolean parallel) { return reader.option("port", Integer.parseInt(conf.get("spark.flight.endpoint.port"))) .option("host", conf.get("spark.flight.endpoint.host")) .option("username", conf.get("spark.flight.auth.username")) .option("password", conf.get("spark.flight.auth.password")) .option("parallel", parallel) .load(s); } }