| /* |
| * 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; |
| |
| import static java.util.stream.Collectors.toMap; |
| |
| import java.io.Serializable; |
| import java.util.Arrays; |
| import java.util.Map; |
| import javax.annotation.Nullable; |
| import org.apache.beam.runners.spark.structuredstreaming.translation.SparkSessionFactory; |
| import org.apache.beam.sdk.options.PipelineOptions; |
| import org.apache.beam.sdk.testing.TestPipeline; |
| import org.apache.beam.sdk.values.KV; |
| import org.apache.spark.sql.SparkSession; |
| import org.junit.rules.ExternalResource; |
| import org.junit.runner.Description; |
| import org.junit.runners.model.Statement; |
| |
| public class SparkSessionRule extends ExternalResource implements Serializable { |
| private transient SparkSession.Builder builder; |
| private transient @Nullable SparkSession session = null; |
| |
| public SparkSessionRule(String sparkMaster, Map<String, String> sparkConfig) { |
| builder = SparkSessionFactory.sessionBuilder(sparkMaster); |
| sparkConfig.forEach(builder::config); |
| } |
| |
| public SparkSessionRule(KV<String, String>... sparkConfig) { |
| this("local[2]", sparkConfig); |
| } |
| |
| public SparkSessionRule(String sparkMaster, KV<String, String>... sparkConfig) { |
| this(sparkMaster, Arrays.stream(sparkConfig).collect(toMap(KV::getKey, KV::getValue))); |
| } |
| |
| public SparkSession getSession() { |
| if (session == null) { |
| throw new IllegalStateException("SparkSession not available"); |
| } |
| return session; |
| } |
| |
| public PipelineOptions createPipelineOptions() { |
| return configure(TestPipeline.testingPipelineOptions()); |
| } |
| |
| public PipelineOptions configure(PipelineOptions options) { |
| SparkStructuredStreamingPipelineOptions opts = |
| options.as(SparkStructuredStreamingPipelineOptions.class); |
| opts.setUseActiveSparkSession(true); |
| opts.setRunner(SparkStructuredStreamingRunner.class); |
| opts.setTestMode(true); |
| return opts; |
| } |
| |
| @Override |
| public Statement apply(Statement base, Description description) { |
| builder.appName(description.getDisplayName()); |
| return super.apply(base, description); |
| } |
| |
| @Override |
| protected void before() throws Throwable { |
| session = builder.getOrCreate(); |
| } |
| |
| @Override |
| protected void after() { |
| getSession().stop(); |
| session = null; |
| } |
| } |