flink bitmap去重并写入RabitMQ

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简介: flink bitmap去重并写入RabitMQ

1:样例数据集

{"uuid": "7203d5f8a55c11ea9986a64728966615", "title": "暴乱持续发酵,特朗普3小时发16条推文,疫苗又有新进展?惊现巨量抛单,黄金闪跌20美元 | 早报", "url": "http://www.toutiao.com/item/6833955164274033159/","ctime": 1590019056, "utime": 0} 
{"uuid": "43f67f489aef11ea967c8e469741ac9c", "title": "汇添富成长多因子量化策略股票净值下跌1.55% 请保持关注", "url": "http://www.toutiao.com/item/6829065074540282376/","ctime": 1590019056, "utime": 0}                                     
{"uuid": "c44f94129aff11ea967c8e469741ac9c", "title": "上投摩根内需动力混合基金最新净值跌幅达1.66%", "url": "http://www.toutiao.com/item/6829079830701539847/","ctime": 1590019056, "utime": 0 }                                             
{"uuid": "c50c65929aff11ea967c8e469741ac9c", "title": "银华体育文化灵活配置混合基金最新净值跌幅达1.68%", "url": "http://www.toutiao.com/item/6829079830709928455/","ctime": 1590019056, "utime": 0}                                          
{"uuid": "2f18d7cea05d11ea9980a64728966615", "title": "68家上市游戏公司Q1财报梳理:36家净利润下滑,谁吃到了宅经济红利?", "url": "http://www.toutiao.com/item/6831618549249737229/","ctime": 1590019056, "utime": 0}                         
{"uuid": "c78a036a9aff11ea967c8e469741ac9c", "title": "长城中小盘成长混合基金最新净值跌幅达2.45%", "url": "http://www.toutiao.com/item/6829079832752554510/","ctime": 1590019056, "utime": 0}                                               
{"uuid": "602d7c2aa07111ea96878e469741ac9c", "title": "东方量化成长灵活配置混合基金最新净值跌幅达1.75%", "url": "http://www.toutiao.com/item/6831661455230632461/","ctime": 1590019056, "utime": 0}                                          
{"uuid": "c37db9b09aff11ea967c8e469741ac9c", "title": "融通蓝筹成长混合基金最新净值跌幅达1.66%", "url": "http://www.toutiao.com/item/6829079847638139399/","ctime": 1590019056, "utime": 0}                                                 
{"uuid": "5f0d2444a07111ea9980a64728966615", "title": "银华瑞和灵活配置混合基金最新净值跌幅达1.94%", "url": "http://www.toutiao.com/item/6831661456606364167/","ctime": 1590019056, "utime": 0}                                              
{"uuid": "65d4ba4c9b0011ea9972a64728966615", "title": "“宅经济”盛行 游戏上市公司一季度“成绩”逆势上涨", "url": "http://www.toutiao.com/item/6829086094345110029/","ctime": 1590019056, "utime": 0}                                            
{"uuid": "7203d5f8a55c11ea9986a64728966615", "title": "暴乱持续发酵,特朗普3小时发16条推文,疫苗又有新进展?惊现巨量抛单,黄金闪跌20美元 | 早报", "url": "http://www.toutiao.com/item/6833955164274033159/","ctime": 1590019056, "utime": 0} 
{"uuid": "43f67f489aef11ea967c8e469741ac9c", "title": "汇添富成长多因子量化策略股票净值下跌1.55% 请保持关注", "url": "http://www.toutiao.com/item/6829065074540282376/","ctime": 1590019056, "utime": 0}                                     
{"uuid": "c44f94129aff11ea967c8e469741ac9c", "title": "上投摩根内需动力混合基金最新净值跌幅达1.66%", "url": "http://www.toutiao.com/item/6829079830701539847/","ctime": 1590019056, "utime": 0 }                                             
{"uuid": "c50c65929aff11ea967c8e469741ac9c", "title": "银华体育文化灵活配置混合基金最新净值跌幅达1.68%", "url": "http://www.toutiao.com/item/6829079830709928455/","ctime": 1590019056, "utime": 0}                                          
{"uuid": "2f18d7cea05d11ea9980a64728966615", "title": "68家上市游戏公司Q1财报梳理:36家净利润下滑,谁吃到了宅经济红利?", "url": "http://www.toutiao.com/item/6831618549249737229/","ctime": 1590019056, "utime": 0}                         
{"uuid": "c78a036a9aff11ea967c8e469741ac9c", "title": "长城中小盘成长混合基金最新净值跌幅达2.45%", "url": "http://www.toutiao.com/item/6829079832752554510/","ctime": 1590019056, "utime": 0}                                               
{"uuid": "602d7c2aa07111ea96878e469741ac9c", "title": "东方量化成长灵活配置混合基金最新净值跌幅达1.75%", "url": "http://www.toutiao.com/item/6831661455230632461/","ctime": 1590019056, "utime": 0}                                          
{"uuid": "c37db9b09aff11ea967c8e469741ac9c", "title": "融通蓝筹成长混合基金最新净值跌幅达1.66%", "url": "http://www.toutiao.com/item/6829079847638139399/","ctime": 1590019056, "utime": 0}                                                 
{"uuid": "5f0d2444a07111ea9980a64728966615", "title": "银华瑞和灵活配置混合基金最新净值跌幅达1.94%", "url": "http://www.toutiao.com/item/6831661456606364167/","ctime": 1590019056, "utime": 0}                                              
{"uuid": "65d4ba4c9b0011ea9972a64728966615", "title": "“宅经济”盛行 游戏上市公司一季度“成绩”逆势上涨", "url": "http://www.toutiao.com/item/6829086094345110029/","ctime": 1590019056, "utime": 0}                                            
{"uuid": "7203d5f8a55c11ea9986a64728966615", "title": "暴乱持续发酵,特朗普3小时发16条推文,疫苗又有新进展?惊现巨量抛单,黄金闪跌20美元 | 早报", "url": "http://www.toutiao.com/item/6833955164274033159/","ctime": 1590019056, "utime": 0} 
{"uuid": "43f67f489aef11ea967c8e469741ac9c", "title": "汇添富成长多因子量化策略股票净值下跌1.55% 请保持关注", "url": "http://www.toutiao.com/item/6829065074540282376/","ctime": 1590019056, "utime": 0}                                     
{"uuid": "c44f94129aff11ea967c8e469741ac9c", "title": "上投摩根内需动力混合基金最新净值跌幅达1.66%", "url": "http://www.toutiao.com/item/6829079830701539847/","ctime": 1590019056, "utime": 0 }                                             
{"uuid": "c50c65929aff11ea967c8e469741ac9c", "title": "银华体育文化灵活配置混合基金最新净值跌幅达1.68%", "url": "http://www.toutiao.com/item/6829079830709928455/","ctime": 1590019056, "utime": 0}                                          
{"uuid": "2f18d7cea05d11ea9980a64728966615", "title": "68家上市游戏公司Q1财报梳理:36家净利润下滑,谁吃到了宅经济红利?", "url": "http://www.toutiao.com/item/6831618549249737229/","ctime": 1590019056, "utime": 0}                         
{"uuid": "c78a036a9aff11ea967c8e469741ac9c", "title": "长城中小盘成长混合基金最新净值跌幅达2.45%", "url": "http://www.toutiao.com/item/6829079832752554510/","ctime": 1590019056, "utime": 0}                                               
{"uuid": "602d7c2aa07111ea96878e469741ac9c", "title": "东方量化成长灵活配置混合基金最新净值跌幅达1.75%", "url": "http://www.toutiao.com/item/6831661455230632461/","ctime": 1590019056, "utime": 0}                                          
{"uuid": "c37db9b09aff11ea967c8e469741ac9c", "title": "融通蓝筹成长混合基金最新净值跌幅达1.66%", "url": "http://www.toutiao.com/item/6829079847638139399/","ctime": 1590019056, "utime": 0}                                                 
{"uuid": "5f0d2444a07111ea9980a64728966615", "title": "银华瑞和灵活配置混合基金最新净值跌幅达1.94%", "url": "http://www.toutiao.com/item/6831661456606364167/","ctime": 1590019056, "utime": 0}                                              
{"uuid": "65d4ba4c9b0011ea9972a64728966615", "title": "“宅经济”盛行 游戏上市公司一季度“成绩”逆势上涨", "url": "http://www.toutiao.com/item/6829086094345110029/","ctime": 1590019056, "utime": 0}                                            
{"uuid": "7203d5f8a55c11ea9986a64728966615", "title": "暴乱持续发酵,特朗普3小时发16条推文,疫苗又有新进展?惊现巨量抛单,黄金闪跌20美元 | 早报", "url": "http://www.toutiao.com/item/6833955164274033159/","ctime": 1590019056, "utime": 0} 
{"uuid": "43f67f489aef11ea967c8e469741ac9c", "title": "汇添富成长多因子量化策略股票净值下跌1.55% 请保持关注", "url": "http://www.toutiao.com/item/6829065074540282376/","ctime": 1590019056, "utime": 0}                                     
{"uuid": "c44f94129aff11ea967c8e469741ac9c", "title": "上投摩根内需动力混合基金最新净值跌幅达1.66%", "url": "http://www.toutiao.com/item/6829079830701539847/","ctime": 1590019056, "utime": 0 }                                             
{"uuid": "c50c65929aff11ea967c8e469741ac9c", "title": "银华体育文化灵活配置混合基金最新净值跌幅达1.68%", "url": "http://www.toutiao.com/item/6829079830709928455/","ctime": 1590019056, "utime": 0}                                          
{"uuid": "2f18d7cea05d11ea9980a64728966615", "title": "68家上市游戏公司Q1财报梳理:36家净利润下滑,谁吃到了宅经济红利?", "url": "http://www.toutiao.com/item/6831618549249737229/","ctime": 1590019056, "utime": 0}                         
{"uuid": "c78a036a9aff11ea967c8e469741ac9c", "title": "长城中小盘成长混合基金最新净值跌幅达2.45%", "url": "http://www.toutiao.com/item/6829079832752554510/","ctime": 1590019056, "utime": 0}                                               
{"uuid": "602d7c2aa07111ea96878e469741ac9c", "title": "东方量化成长灵活配置混合基金最新净值跌幅达1.75%", "url": "http://www.toutiao.com/item/6831661455230632461/","ctime": 1590019056, "utime": 0}                                          
{"uuid": "c37db9b09aff11ea967c8e469741ac9c", "title": "融通蓝筹成长混合基金最新净值跌幅达1.66%", "url": "http://www.toutiao.com/item/6829079847638139399/","ctime": 1590019056, "utime": 0}                                                 
{"uuid": "5f0d2444a07111ea9980a64728966615", "title": "银华瑞和灵活配置混合基金最新净值跌幅达1.94%", "url": "http://www.toutiao.com/item/6831661456606364167/","ctime": 1590019056, "utime": 0}                                              
{"uuid": "65d4ba4c9b0011ea9972a64728966615", "title": "“宅经济”盛行 游戏上市公司一季度“成绩”逆势上涨", "url": "http://www.toutiao.com/item/6829086094345110029/","ctime": 1590019056, "utime": 0}                                            

    数据说明:此样例数据共有40条,其中只有10条数据uuid不重复。

    2: 依赖导入

     <!-- https://mvnrepository.com/artifact/org.apache.flink/flink-connector-rabbitmq -->
            <dependency>
                <groupId>org.apache.flink</groupId>
                <artifactId>flink-connector-rabbitmq_2.11</artifactId>
                <version>1.12.2</version>
                <scope>provided</scope>
            </dependency>

    3: 核心代码

    3.1 读取样例数据,并解析。通过ValueState结合bitmap 进行去重

    import com.fasterxml.jackson.databind.JsonNode;
    import com.fasterxml.jackson.databind.ObjectMapper;
    import org.apache.flink.api.common.functions.MapFunction;
    import org.apache.flink.api.common.state.ValueState;
    import org.apache.flink.api.common.state.ValueStateDescriptor;
    import org.apache.flink.api.common.typeinfo.TypeHint;
    import org.apache.flink.api.common.typeinfo.TypeInformation;
    import org.apache.flink.api.java.tuple.Tuple;
    import org.apache.flink.api.java.tuple.Tuple10;
    import org.apache.flink.configuration.Configuration;
    import org.apache.flink.shaded.guava18.com.google.common.hash.BloomFilter;
    import org.apache.flink.shaded.guava18.com.google.common.hash.Funnels;
    import org.apache.flink.streaming.api.datastream.KeyedStream;
    import org.apache.flink.streaming.api.datastream.SingleOutputStreamOperator;
    import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
    import org.apache.flink.streaming.api.functions.KeyedProcessFunction;
    import org.apache.flink.streaming.connectors.rabbitmq.RMQSink;
    import org.apache.flink.streaming.connectors.rabbitmq.common.RMQConnectionConfig;
    import org.apache.flink.streaming.util.serialization.SimpleStringSchema;
    import org.apache.flink.util.Collector;
    public class bitMap2MQ {
        public static void main(String[] args) throws Exception {
            //创建环境,设置参数
            StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
            //读取数据源
            DataStreamSource<String> pulsarDS = env.readTextFile("/Users/mindezhi/Downloads/PublicSentiment/src/main/data/test2.txt");
            ObjectMapper mapper = new ObjectMapper();
            SingleOutputStreamOperator<Tuple5<String, String, String, String, String>> mapDS = pulsarDS.map(new MapFunction<String, Tuple5<String, String, String,String,String>>() {
                @Override
                public Tuple5<String, String, String, String, String> map(String value) throws Exception {
                    JsonNode jsonNode = mapper.readTree(value);
                    String uuid = (jsonNode.get("uuid") != null) ? jsonNode.get("uuid").toString() : "";
                    String ctime = (jsonNode.get("ctime") != null) ? jsonNode.get("ctime").toString() : "";
                    String utime = (jsonNode.get("utime") != null) ? jsonNode.get("utime").toString() : "";
                    String title = (jsonNode.get("title") != null) ? jsonNode.get("title").toString() : "";
                    String url = (jsonNode.get("url") != null) ? jsonNode.get("url").toString() : "";
                    return Tuple5.of(uuid, ctime, utime, title, url);
                }
            });
            KeyedStream<Tuple5<String, String, String, String, String>, Tuple> KeyedStream = mapDS.keyBy(1);
            final SingleOutputStreamOperator<Tuple5<String, String, String, String,String>> distinctProcess = KeyedStream.process(new KeyedProcessFunction<Tuple, Tuple5<String, String, String, String, String>, Tuple5<String, String, String, String, String>>() {
                // 定义一个状态,用来存放BloomFilter
                private transient ValueState<BloomFilter> uidState;
                @Override
                public void open(Configuration parameters) throws Exception {
                    // 定义一个状态描述器 保存BloomFilter
                    ValueStateDescriptor<BloomFilter> stateDescriptor1 = new ValueStateDescriptor(
                            "uid-stated",
                            TypeInformation.of(new TypeHint<BloomFilter>() {
                            })
                    );
                    // 获取历史状态
                    uidState = getRuntimeContext().getState(stateDescriptor1);
                }
                @Override
                public void processElement(Tuple5<String,String, String, String, String> value, Context ctx, Collector<Tuple10<String, String, String, String, String, String, String, String, String, String>> out) throws Exception {
                    String uuid = value.f0;
                    String ctime = value.f1;
                    String utime = value.f2;
                    String title = value.f3;
                    String url = value.f4;
                    // 使用BloomFilter判断去重
                    BloomFilter bloomFilter = uidState.value();
                    if (bloomFilter == null) {
                        bloomFilter = BloomFilter.create(Funnels.unencodedCharsFunnel(), 10000000);
                    }
                    // 如果数据不存在,则将数据添加到bloomFilter中
                    if (!bloomFilter.mightContain(uuid)&&!bloomFilter.mightContain(title)) {
                        bloomFilter.put(uuid);
                        uidState.update(bloomFilter);
                        out.collect(Tuple5.of(uuid, ctime, utime, title, url));
                    }
                }
            });

    4: 定义rabbitMQ sink,由于flink-connector-rabbitmq 发送数据是以string类型发送,在此需要,将数据封装成json形式的字符串。

             // 封装成json形式的String        
            SingleOutputStreamOperator<String> mapDs = distinctProcess.map(new MapFunction<Tuple5<String, String, String, String, String>, String>() {
                @Override
                public String map(Tuple5< String, String, String, String, String> value) throws Exception {
                    String str = "{ " +
                            "\"msg_header\":{" +
                            "\"uuid\":" + value.f0 + "," +
                            "\"ctime\":" + value.f1 + "," +
                            "\"utime\":" + value.f2 + "," +
                            "\"duplicate_filter\":0," +
                            "\"duplicate\":0}," +
                            "\"msg_body\":{" +
                            "\"title\":" + value.f3 + "," +
                            "\"stocks\":[]," +
                            "\"url\":" + value.f4 + "," +
                            "\"tags\":[]" +
                            "}}";
                    return str;
                }
            });
            RMQConnectionConfig connectionConfig = new RMQConnectionConfig
                    .Builder().setHost("localhost").setVirtualHost("/")
                    .setPort(5672).setUserName("rabbitMQ").setPassword("xxx@2020")
                    .build();
            //注意,换一个新的 queue,否则也会报错
            mapDs.addSink(new RMQSink(connectionConfig, "disinct_test",new SimpleStringSchema()));
            env.execute();
        }
    }

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