content: /*
   * 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.translation;
  
  import org.apache.beam.runners.fnexecution.provisioning.JobInfo;
  import org.apache.beam.runners.spark.SparkPipelineOptions;
  import org.apache.spark.api.java.JavaSparkContext;
  import org.apache.spark.streaming.Duration;
  import org.apache.spark.streaming.api.java.JavaStreamingContext;
  import org.joda.time.Instant;
  
  /**
   * Translation context used to lazily store Spark datasets during streaming portable pipeline
   * translation and compute them after translation.
   */
  public class SparkStreamingTranslationContext extends SparkTranslationContext {
    private final JavaStreamingContext streamingContext;
    private final Instant firstTimestamp;
  
    public SparkStreamingTranslationContext(
        JavaSparkContext jsc, SparkPipelineOptions options, JobInfo jobInfo) {
      super(jsc, options, jobInfo);
      Duration batchDuration = new Duration(options.getBatchIntervalMillis());
      this.streamingContext = new JavaStreamingContext(jsc, batchDuration);
      this.firstTimestamp = new Instant();
    }
  
    public JavaStreamingContext getStreamingContext() {
      return streamingContext;
    }
  
    public Instant getFirstTimestamp() {
      return firstTimestamp;
    }
  }
  