62 lines
1.7 KiB
Java
62 lines
1.7 KiB
Java
/*
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* Copyright (C) 2018 Lightbend Inc. <https://www.lightbend.com>
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*/
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package jdocs.stream.operators;
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//#imports
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//#range-imports
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import akka.NotUsed;
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import akka.actor.ActorSystem;
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import akka.stream.ActorMaterializer;
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import akka.stream.Materializer;
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import akka.stream.javadsl.Source;
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//#range-imports
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import java.util.Arrays;
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//#imports
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public class SourceDocExamples {
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public static void fromExample() {
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//#source-from-example
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final ActorSystem system = ActorSystem.create("SourceFromExample");
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final Materializer materializer = ActorMaterializer.create(system);
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Source<Integer, NotUsed> ints = Source.from(Arrays.asList(0, 1, 2, 3, 4, 5));
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ints.runForeach(System.out::println, materializer);
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String text = "Perfection is finally attained not when there is no longer more to add," +
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"but when there is no longer anything to take away.";
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Source<String, NotUsed> words = Source.from(Arrays.asList(text.split("\\s")));
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words.runForeach(System.out::println, materializer);
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//#source-from-example
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}
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static void rangeExample() {
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final ActorSystem system = ActorSystem.create("Source");
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final Materializer materializer = ActorMaterializer.create(system);
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//#range
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Source<Integer, NotUsed> source = Source.range(1, 100);
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//#range
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//#range
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Source<Integer, NotUsed> sourceStepFive = Source.range(1, 100, 5);
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//#range
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//#range
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Source<Integer, NotUsed> sourceStepNegative = Source.range(100, 1, -1);
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//#range
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//#run-range
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source.runForeach(i -> System.out.println(i), materializer);
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//#run-range
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}
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}
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