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package completableFuture;

/**

* Created by kennylbj on 2017/4/30.

*/

public class Main {

private static long getDuration(long start) {

return (System.nanoTime() - start) / 1000000;

}

public static void main(String[] args) {

Forecaster forecaster = new Forecaster();

long start = System.nanoTime();

forecaster.queryTemperature("New York").forEach(System.out::println);

System.out.println("Query temperature in " + getDuration(start) + " ms.\n");

start = System.nanoTime();

forecaster.queryTemperatureParallelByStream("Los Angeles").forEach(System.out::println);

System.out.println("Query temperature parallel by Stream in " + getDuration(start) + " ms.\n");

start = System.nanoTime();

forecaster.queryTemperatureParallelByCompletableFuture("Beijing").forEach(System.out::println);

System.out.println("Query temperature parallel by CompletableFuture in " + getDuration(start) + " ms.\n");

start = System.nanoTime();

forecaster.queryWeather("London").forEach(System.out::println);

System.out.println("Query weather in " + getDuration(start) + " ms.\n");

start = System.nanoTime();

forecaster.queryComfortLevel("Berlin").forEach(System.out::println);

System.out.println("Query comfort level in " + getDuration(start) + " ms.");

}

}