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From tdas <...@git.apache.org>
Subject [GitHub] spark pull request: [SPARK-9057] [STREAMING] Twitter example joini...
Date Tue, 22 Sep 2015 23:52:56 GMT
Github user tdas commented on a diff in the pull request:

    https://github.com/apache/spark/pull/8431#discussion_r40159222
  
    --- Diff: examples/src/main/java/org/apache/spark/examples/streaming/JavaTwitterTagSentiments.java
---
    @@ -0,0 +1,178 @@
    +/*
    + * 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.spark.examples.streaming;
    +
    +import org.apache.commons.io.IOUtils;
    +import org.apache.spark.SparkConf;
    +import org.apache.spark.api.java.JavaPairRDD;
    +import org.apache.spark.api.java.function.FlatMapFunction;
    +import org.apache.spark.api.java.function.Function;
    +import org.apache.spark.api.java.function.Function2;
    +import org.apache.spark.api.java.function.PairFunction;
    +import org.apache.spark.streaming.Duration;
    +import org.apache.spark.streaming.api.java.JavaDStream;
    +import org.apache.spark.streaming.api.java.JavaPairDStream;
    +import org.apache.spark.streaming.api.java.JavaReceiverInputDStream;
    +import org.apache.spark.streaming.api.java.JavaStreamingContext;
    +import org.apache.spark.streaming.twitter.TwitterUtils;
    +import scala.Tuple2;
    +import twitter4j.Status;
    +
    +import java.io.IOException;
    +import java.net.URI;
    +import java.util.Arrays;
    +import java.util.List;
    +
    +/**
    + * Displays the most positive hash tags by joining the streaming Twitter data with a
static RDD of
    + * the AFINN word list (http://neuro.imm.dtu.dk/wiki/AFINN)
    + */
    +public class JavaTwitterTagSentiments {
    +    private JavaTwitterTagSentiments() {
    +    }
    +
    +    public static void main(String[] args) throws IOException {
    +        if (args.length < 4) {
    +            System.err.println("Usage: JavaTwitterTagSentiments <consumer key>
<consumer secret>" +
    +                    " <access token> <access token secret> [<filters>]");
    +            System.exit(1);
    +        }
    +
    +        StreamingExamples.setStreamingLogLevels();
    +
    +        String consumerKey = args[0];
    +        String consumerSecret = args[1];
    +        String accessToken = args[2];
    +        String accessTokenSecret = args[3];
    +        String[] filters = Arrays.copyOfRange(args, 4, args.length);
    +
    +        System.setProperty("twitter4j.oauth.consumerKey", consumerKey);
    +        System.setProperty("twitter4j.oauth.consumerSecret", consumerSecret);
    +        System.setProperty("twitter4j.oauth.accessToken", accessToken);
    +        System.setProperty("twitter4j.oauth.accessTokenSecret", accessTokenSecret);
    +
    --- End diff --
    
    Please add more comments throughout the code to explain stuff.


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