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 com.datastax.spark.connector.japi;
  
  import com.datastax.spark.connector.ColumnSelector;
  import com.datastax.spark.connector.cql.CassandraConnector;
  import com.datastax.spark.connector.streaming.DStreamFunctions;
  import com.datastax.spark.connector.writer.RowWriterFactory;
  import com.datastax.spark.connector.writer.WriteConf;
  import org.apache.spark.SparkConf;
  import org.apache.spark.streaming.dstream.DStream;
  
  /**
   * A Java API wrapper over {@link DStream} to provide Spark Cassandra Connector functionality.
   * <p/>
   * To obtain an instance of this wrapper, use one of the factory methods in {@link CassandraJavaUtil}
   * class.
   */
  @SuppressWarnings("UnusedDeclaration")
  public class DStreamJavaFunctions<T> extends RDDAndDStreamCommonJavaFunctions<T> {
      public final DStream<T> dstream;
      private final DStreamFunctions<T> dsf;
  
      DStreamJavaFunctions(DStream<T> dStream) {
          this.dstream = dStream;
          this.dsf = new DStreamFunctions<>(dStream);
      }
  
      @Override
      public CassandraConnector defaultConnector() {
          return dsf.connector();
      }
  
      @Override
      protected SparkConf getConf() {
          return dstream.ssc().conf();
      }
  
      @Override
      protected void saveToCassandra(String keyspace, String table, RowWriterFactory<T> rowWriterFactory,
                                     ColumnSelector columnNames, WriteConf conf, CassandraConnector connector) {
          dsf.saveToCassandra(keyspace, table, columnNames, conf, connector, rowWriterFactory);
      }
  }
  