| /* |
| * 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.beam.runners.spark.structuredstreaming.translation.batch; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.PrintStream; |
| import java.io.Serializable; |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.apache.beam.runners.spark.structuredstreaming.SparkStructuredStreamingPipelineOptions; |
| import org.apache.beam.runners.spark.structuredstreaming.SparkStructuredStreamingRunner; |
| import org.apache.beam.sdk.Pipeline; |
| import org.apache.beam.sdk.io.TextIO; |
| import org.apache.beam.sdk.options.PipelineOptionsFactory; |
| import org.apache.beam.sdk.testing.PAssert; |
| import org.apache.beam.sdk.values.PCollection; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Test class for beam to spark source translation. */ |
| @RunWith(JUnit4.class) |
| public class ComplexSourceTest implements Serializable { |
| @ClassRule public static final TemporaryFolder TEMPORARY_FOLDER = new TemporaryFolder(); |
| private static File file; |
| private static List<String> lines = createLines(30); |
| |
| private static Pipeline pipeline; |
| |
| @BeforeClass |
| public static void beforeClass() throws IOException { |
| SparkStructuredStreamingPipelineOptions options = |
| PipelineOptionsFactory.create().as(SparkStructuredStreamingPipelineOptions.class); |
| options.setRunner(SparkStructuredStreamingRunner.class); |
| options.setTestMode(true); |
| pipeline = Pipeline.create(options); |
| file = createFile(lines); |
| } |
| |
| @Test |
| public void testBoundedSource() { |
| PCollection<String> input = pipeline.apply(TextIO.read().from(file.getPath())); |
| PAssert.that(input).containsInAnyOrder(lines); |
| pipeline.run(); |
| } |
| |
| private static File createFile(List<String> lines) throws IOException { |
| File file = TEMPORARY_FOLDER.newFile(); |
| OutputStream outputStream = new FileOutputStream(file); |
| try (PrintStream writer = new PrintStream(outputStream)) { |
| for (String line : lines) { |
| writer.println(line); |
| } |
| } |
| return file; |
| } |
| |
| private static List<String> createLines(int size) { |
| List<String> lines = new ArrayList<>(); |
| for (int i = 0; i < size; ++i) { |
| lines.add("word" + i); |
| } |
| return lines; |
| } |
| } |