package com.hao.chapter05;

import org.apache.flink.streaming.api.datastream.DataStreamSource;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;

public class BroadcastTest {
    public static void main(String[] args) throws Exception {
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        env.setParallelism(1);

        // 读取数据源，并行度为 1
        DataStreamSource<Event> stream = env.fromElements(
                new Event("Mary", "./home", 1000L),
                new Event("Bob", "./cart", 2000L),
                new Event("Alice", "./prod?id=100", 3000L),
                new Event("Bob", "./prod?id=1", 3300L),
                new Event("Bob", "./home", 3500L),
                new Event("Alice", "./prod?id=200", 3200L),
                new Event("Bob", "./prod?id=2", 3800L),
                new Event("Bob", "./prod?id=3", 4200L)
        );

        // 经广播后打印输出，并行度为 4
        stream. broadcast().print("broadcast").setParallelism(4);

        env.execute();
    }
}