58 lines
1.7 KiB
Java
58 lines
1.7 KiB
Java
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package com.baeldung.async;
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import static com.ea.async.Async.await;
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.ExecutionException;
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import com.ea.async.Async;
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public class EAAsyncExample {
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static {
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Async.init();
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}
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public static void main(String[] args) throws Exception {
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usingCompletableFuture();
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usingAsyncAwait();
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}
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public static void usingCompletableFuture() throws InterruptedException, ExecutionException, Exception {
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CompletableFuture<Void> completableFuture = hello()
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.thenComposeAsync(hello -> mergeWorld(hello))
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.thenAcceptAsync(helloWorld -> print(helloWorld))
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.exceptionally( throwable -> {
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System.out.println(throwable.getCause());
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return null;
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});
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completableFuture.get();
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}
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public static CompletableFuture<String> hello() {
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CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello");
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return completableFuture;
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}
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public static CompletableFuture<String> mergeWorld(String s) {
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CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> {
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return s + " World!";
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});
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return completableFuture;
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}
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public static void print(String str) {
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CompletableFuture.runAsync(() -> System.out.println(str));
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}
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private static void usingAsyncAwait() {
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try {
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String hello = await(hello());
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String helloWorld = await(mergeWorld(hello));
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await(CompletableFuture.runAsync(() -> print(helloWorld)));
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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