| /* |
| * 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; |
| |
| import com.fasterxml.jackson.annotation.JsonIgnore; |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.apache.beam.sdk.options.Default; |
| import org.apache.beam.sdk.options.DefaultValueFactory; |
| import org.apache.beam.sdk.options.Description; |
| import org.apache.beam.sdk.options.PipelineOptions; |
| import org.apache.spark.api.java.JavaSparkContext; |
| import org.apache.spark.streaming.api.java.JavaStreamingListener; |
| |
| |
| |
| /** |
| * A custom {@link PipelineOptions} to work with properties related to {@link JavaSparkContext}. |
| * |
| * <p>This can only be used programmatically (as opposed to passing command line arguments), |
| * since the properties here are context-aware and should not be propagated to workers. |
| * |
| * <p>Separating this from {@link SparkPipelineOptions} is needed so the context-aware properties, |
| * which link to Spark dependencies, won't be scanned by {@link PipelineOptions} |
| * reflective instantiation. |
| * Note that {@link SparkContextOptions} is not registered with {@link SparkRunnerRegistrar}. |
| */ |
| public interface SparkContextOptions extends SparkPipelineOptions { |
| |
| @Description("Provided Java Spark Context") |
| @JsonIgnore |
| JavaSparkContext getProvidedSparkContext(); |
| void setProvidedSparkContext(JavaSparkContext jsc); |
| |
| @Description("Spark streaming listeners") |
| @Default.InstanceFactory(EmptyListenersList.class) |
| @JsonIgnore |
| List<JavaStreamingListener> getListeners(); |
| void setListeners(List<JavaStreamingListener> listeners); |
| |
| /** Returns an empty list, top avoid handling null. */ |
| class EmptyListenersList implements DefaultValueFactory<List<JavaStreamingListener>> { |
| @Override |
| public List<JavaStreamingListener> create(PipelineOptions options) { |
| return new ArrayList<>(); |
| } |
| } |
| } |