ActorContext.getParent for Java API #22413

akka-docs/rst/java/code/jdocs/stream/javadsl/cookbook/RecipeParseLines.java

@@ -0,0 +1,58 @@
+/**
+ *  Copyright (C) 2015-2017 Lightbend Inc. <http://www.lightbend.com/>
+ */
+package jdocs.stream.javadsl.cookbook;
+
+import akka.NotUsed;
+import akka.actor.ActorSystem;
+import akka.stream.ActorMaterializer;
+import akka.stream.Materializer;
+import akka.stream.javadsl.Framing;
+import akka.stream.javadsl.FramingTruncation;
+import akka.stream.javadsl.Sink;
+import akka.stream.javadsl.Source;
+import akka.testkit.JavaTestKit;
+import akka.util.ByteString;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.util.Arrays;
+import java.util.concurrent.TimeUnit;
+
+public class RecipeParseLines extends RecipeTest {
+
+  static ActorSystem system;
+  static Materializer mat;
+
+  @BeforeClass
+  public static void setup() {
+    system = ActorSystem.create("RecipeParseLines");
+    mat = ActorMaterializer.create(system);
+  }
+
+  @AfterClass
+  public static void tearDown() {
+    JavaTestKit.shutdownActorSystem(system);
+    system = null;
+    mat = null;
+  }
+
+  @Test
+  public void parseLines() throws Exception {
+    final Source<ByteString, NotUsed> rawData = Source.from(Arrays.asList(
+      ByteString.fromString("Hello World"),
+      ByteString.fromString("\r"),
+      ByteString.fromString("!\r"),
+      ByteString.fromString("\nHello Akka!\r\nHello Streams!"),
+      ByteString.fromString("\r\n\r\n")));
+
+    //#parse-lines
+    final Source<String, NotUsed> lines = rawData
+      .via(Framing.delimiter(ByteString.fromString("\r\n"), 100, FramingTruncation.ALLOW))
+      .map(b -> b.utf8String());
+    //#parse-lines
+    lines.limit(10).runWith(Sink.seq(), mat).toCompletableFuture().get(1, TimeUnit.SECONDS);
+  }
+
+}