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 org.apache.spark.streaming.StreamingContext;
  import org.apache.spark.streaming.api.java.JavaDStream;
  import org.apache.spark.streaming.api.java.JavaStreamingContext;
  import org.apache.spark.streaming.dstream.DStream;
  
  /**
   * The main entry point to Spark Cassandra Connector Java API for Spark Streaming.
   *
   * <p>There are several helpful static factory methods which build useful wrappers around Streaming
   * Context and DStream.</p>
   */
  @SuppressWarnings("UnusedDeclaration")
  public class CassandraStreamingJavaUtil
  {
  
      private CassandraStreamingJavaUtil() {
          assert false;
      }
  
      // -------------------------------------------------------------------------
      //              Java API wrappers factory methods
      // -------------------------------------------------------------------------
  
      /**
       * A static factory method to create a {@link StreamingContextJavaFunctions} based on an existing
       * {@link StreamingContext} instance.
       */
      public static StreamingContextJavaFunctions javaFunctions(StreamingContext streamingContext) {
          return new StreamingContextJavaFunctions(streamingContext);
      }
  
      /**
       * A static factory method to create a {@link StreamingContextJavaFunctions} based on an existing
       * {@link JavaStreamingContext} instance.
       */
      public static StreamingContextJavaFunctions javaFunctions(JavaStreamingContext streamingContext) {
          return new StreamingContextJavaFunctions(streamingContext.ssc());
      }
  
      /**
       * A static factory method to create a {@link DStreamJavaFunctions} based on an existing
       * {@link DStream} instance.
       */
      public static <T> DStreamJavaFunctions<T> javaFunctions(DStream<T> dStream) {
          return new DStreamJavaFunctions<>(dStream);
      }
  
      /**
       * A static factory method to create a {@link DStreamJavaFunctions} based on an existing
       * {@link JavaDStream} instance.
       */
      public static <T> DStreamJavaFunctions<T> javaFunctions(JavaDStream<T> dStream) {
          return new DStreamJavaFunctions<>(dStream.dstream());
      }
  
  }
  