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Merge pull request #24653 from shkoder/fix-trigger-in-digest-cookbook

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fix Trigger references in the stream cookbook example for digest #24317
This commit is contained in:
Patrik Nordwall 2018-03-05 17:36:51 +01:00 • committed by GitHub
commit d9249226c0
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15 changed files with 52 additions and 90 deletions
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41
akka-docs/src/test/java/jdocs/stream/javadsl/cookbook/RecipeDigest.java
View file

@ -17,7 +17,6 @@ import org.junit.Test;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.assertEquals;
@ -39,12 +38,11 @@ public class RecipeDigest extends RecipeTest {
mat = null;
}
//#calculating-digest
class DigestCalculator extends GraphStage<FlowShape<ByteString, ByteString>> {
private final String algorithm;
public Inlet<ByteString> in = Inlet.<ByteString>create("DigestCalculator.in");
public Outlet<ByteString> out = Outlet.<ByteString>create("DigestCalculator.out");
public Inlet<ByteString> in = Inlet.create("DigestCalculator.in");
public Outlet<ByteString> out = Outlet.create("DigestCalculator.out");
private FlowShape<ByteString, ByteString> shape = FlowShape.of(in, out);
public DigestCalculator(String algorithm) {
@ -70,20 +68,21 @@ public class RecipeDigest extends RecipeTest {
setHandler(out, new AbstractOutHandler() {
@Override
public void onPull() throws Exception {
public void onPull() {
pull(in);
}
});
setHandler(in, new AbstractInHandler() {
@Override
public void onPush() throws Exception {
public void onPush() {
ByteString chunk = grab(in);
digest.update(chunk.toArray());
pull(in);
}
@Override
public void onUpstreamFinish() throws Exception {
public void onUpstreamFinish() {
// If the stream is finished, we need to emit the digest
// before completing
emit(out, ByteString.fromArray(digest.digest()));
@ -91,38 +90,32 @@ public class RecipeDigest extends RecipeTest {
}
});
}
};
}
}
//#calculating-digest
@Test
public void work() throws Exception {
new TestKit(system) {
{
Source<ByteString, NotUsed> data = Source.from(Arrays.asList(
ByteString.fromString("abcdbcdecdef"),
ByteString.fromString("defgefghfghighijhijkijkljklmklmnlmnomnopnopq")));
Source<ByteString, NotUsed> data = Source.single(ByteString.fromString("abc"));
//#calculating-digest2
final Source<ByteString, NotUsed> digest = data
.via(new DigestCalculator("SHA-256"));
final Source<ByteString, NotUsed> digest = data.via(new DigestCalculator("SHA-256"));
//#calculating-digest2
ByteString got = digest.runWith(Sink.head(), mat).toCompletableFuture().get(3, TimeUnit.SECONDS);
assertEquals(ByteString.fromInts(
0x24, 0x8d, 0x6a, 0x61,
0xd2, 0x06, 0x38, 0xb8,
0xe5, 0xc0, 0x26, 0x93,
0x0c, 0x3e, 0x60, 0x39,
0xa3, 0x3c, 0xe4, 0x59,
0x64, 0xff, 0x21, 0x67,
0xf6, 0xec, 0xed, 0xd4,
0x19, 0xdb, 0x06, 0xc1), got);
0xba, 0x78, 0x16, 0xbf,
0x8f, 0x01, 0xcf, 0xea,
0x41, 0x41, 0x40, 0xde,
0x5d, 0xae, 0x22, 0x23,
0xb0, 0x03, 0x61, 0xa3,
0x96, 0x17, 0x7a, 0x9c,
0xb4, 0x10, 0xff, 0x61,
0xf2, 0x00, 0x15, 0xad), got);
}
};
}

6
akka-docs/src/test/java/jdocs/stream/javadsl/cookbook/RecipeTest.java
View file

@ -33,10 +33,4 @@ public abstract class RecipeTest extends AbstractJavaTest {
return msg != null ? msg.hashCode() : 0;
}
}
final class Trigger {
}
final class Job {
}
}

3
akka-docs/src/test/scala/docs/stream/cookbook/RecipeAdhocSource.scala
View file

@ -2,9 +2,8 @@ package docs.stream.cookbook
import java.util.concurrent.atomic.{ AtomicBoolean, AtomicInteger }
import akka.stream.scaladsl.{ Keep, Sink, Source }
import akka.stream.scaladsl.Source
import akka.stream.testkit.scaladsl.TestSink
import akka.stream.{ Graph, SourceShape }
import akka.testkit.TimingTest
import akka.{ Done, NotUsed }

6
akka-docs/src/test/scala/docs/stream/cookbook/RecipeDecompress.scala
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@ -3,16 +3,10 @@
*/
package docs.stream.cookbook
import java.io.ByteArrayOutputStream
import java.nio.charset.StandardCharsets
import java.util.zip.GZIPOutputStream
import akka.stream.impl.io.compression.GzipCompressor
import akka.stream.scaladsl.Sink
import akka.stream.scaladsl.Source
import akka.util.ByteString
import scala.annotation.tailrec
import scala.concurrent.Await
import scala.concurrent.duration._

54
akka-docs/src/test/scala/docs/stream/cookbook/RecipeDigest.scala
View file

@ -1,12 +1,5 @@
package docs.stream.cookbook
import java.security.MessageDigest
import akka.NotUsed
import akka.stream.{ Attributes, Outlet, Inlet, FlowShape }
import akka.stream.scaladsl.{ Sink, Source }
import akka.util.ByteString
import scala.concurrent.Await
import scala.concurrent.duration._
@ -16,28 +9,32 @@ class RecipeDigest extends RecipeSpec {
"work" in {
val data = Source(List(
ByteString("abcdbcdecdef"),
ByteString("defgefghfghighijhijkijkljklmklmnlmnomnopnopq")))
//#calculating-digest
import java.security.MessageDigest
import akka.NotUsed
import akka.stream.{ Attributes, Outlet, Inlet, FlowShape }
import akka.stream.scaladsl.{ Sink, Source }
import akka.util.ByteString
import akka.stream.stage._
val data: Source[ByteString, NotUsed] = Source.single(ByteString("abc"))
class DigestCalculator(algorithm: String) extends GraphStage[FlowShape[ByteString, ByteString]] {
val in = Inlet[ByteString]("DigestCalculator.in")
val out = Outlet[ByteString]("DigestCalculator.out")
override val shape = FlowShape.of(in, out)
override val shape = FlowShape(in, out)
override def createLogic(inheritedAttributes: Attributes): GraphStageLogic = new GraphStageLogic(shape) {
val digest = MessageDigest.getInstance(algorithm)
private val digest = MessageDigest.getInstance(algorithm)
setHandler(out, new OutHandler {
override def onPull(): Trigger = {
pull(in)
}
override def onPull(): Unit = pull(in)
})
setHandler(in, new InHandler {
override def onPush(): Trigger = {
override def onPush(): Unit = {
val chunk = grab(in)
digest.update(chunk.toArray)
pull(in)
@ -48,25 +45,22 @@ class RecipeDigest extends RecipeSpec {
completeStage()
}
})
}
}
}
}
val digest: Source[ByteString, NotUsed] = data.via(new DigestCalculator("SHA-256"))
//#calculating-digest
Await.result(digest.runWith(Sink.head), 3.seconds) should be(
ByteString(
0x24, 0x8d, 0x6a, 0x61,
0xd2, 0x06, 0x38, 0xb8,
0xe5, 0xc0, 0x26, 0x93,
0x0c, 0x3e, 0x60, 0x39,
0xa3, 0x3c, 0xe4, 0x59,
0x64, 0xff, 0x21, 0x67,
0xf6, 0xec, 0xed, 0xd4,
0x19, 0xdb, 0x06, 0xc1))
0xba, 0x78, 0x16, 0xbf,
0x8f, 0x01, 0xcf, 0xea,
0x41, 0x41, 0x40, 0xde,
0x5d, 0xae, 0x22, 0x23,
0xb0, 0x03, 0x61, 0xa3,
0x96, 0x17, 0x7a, 0x9c,
0xb4, 0x10, 0xff, 0x61,
0xf2, 0x00, 0x15, 0xad))
}
}
}

3
akka-docs/src/test/scala/docs/stream/cookbook/RecipeDroppyBroadcast.scala
View file

@ -4,9 +4,6 @@ import akka.stream.{ ClosedShape, OverflowStrategy }
import akka.stream.scaladsl._
import akka.stream.testkit._
import scala.collection.immutable
import scala.concurrent.Await
class RecipeDroppyBroadcast extends RecipeSpec {
"Recipe for a droppy broadcast" must {

1
akka-docs/src/test/scala/docs/stream/cookbook/RecipeFlattenSeq.scala
View file

@ -3,7 +3,6 @@ package docs.stream.cookbook
import akka.NotUsed
import akka.stream.scaladsl.{ Sink, Source }
import scala.collection.immutable
import scala.concurrent.Await
import scala.concurrent.duration._

6
akka-docs/src/test/scala/docs/stream/cookbook/RecipeHold.scala
View file

@ -91,7 +91,7 @@ class RecipeHold extends RecipeSpec {
.run()
val subscription = sub.expectSubscription()
sub.expectNoMsg(100.millis)
sub.expectNoMessage(100.millis)
subscription.request(1)
sub.expectNext(0)
@ -121,10 +121,10 @@ class RecipeHold extends RecipeSpec {
source.via(new HoldWithWait).to(sink).run()
val subscription = sub.expectSubscription()
sub.expectNoMsg(100.millis)
sub.expectNoMessage(100.millis)
subscription.request(1)
sub.expectNoMsg(100.millis)
sub.expectNoMessage(100.millis)
pub.sendNext(1)
sub.expectNext(1)

1
akka-docs/src/test/scala/docs/stream/cookbook/RecipeKeepAlive.scala
View file

@ -1,7 +1,6 @@
package docs.stream.cookbook
import akka.NotUsed
import akka.stream.ClosedShape
import akka.stream.scaladsl._
import akka.util.ByteString

13
akka-docs/src/test/scala/docs/stream/cookbook/RecipeManualTrigger.scala
View file

@ -8,6 +8,7 @@ import scala.concurrent.duration._
class RecipeManualTrigger extends RecipeSpec {
"Recipe for triggering a stream manually" must {
type Trigger = Unit
"work" in {
@ -31,17 +32,17 @@ class RecipeManualTrigger extends RecipeSpec {
graph.run()
sub.expectSubscription().request(1000)
sub.expectNoMsg(100.millis)
sub.expectNoMessage(100.millis)
pub.sendNext(())
sub.expectNext("1")
sub.expectNoMsg(100.millis)
sub.expectNoMessage(100.millis)
pub.sendNext(())
pub.sendNext(())
sub.expectNext("2")
sub.expectNext("3")
sub.expectNoMsg(100.millis)
sub.expectNoMessage(100.millis)
pub.sendNext(())
sub.expectNext("4")
@ -71,17 +72,17 @@ class RecipeManualTrigger extends RecipeSpec {
graph.run()
sub.expectSubscription().request(1000)
sub.expectNoMsg(100.millis)
sub.expectNoMessage(100.millis)
pub.sendNext(())
sub.expectNext("1")
sub.expectNoMsg(100.millis)
sub.expectNoMessage(100.millis)
pub.sendNext(())
pub.sendNext(())
sub.expectNext("2")
sub.expectNext("3")
sub.expectNoMsg(100.millis)
sub.expectNoMessage(100.millis)
pub.sendNext(())
sub.expectNext("4")

1
akka-docs/src/test/scala/docs/stream/cookbook/RecipeParseLines.scala
View file

@ -4,7 +4,6 @@ import akka.stream.scaladsl.Sink
import akka.stream.scaladsl.Source
import akka.util.ByteString
import scala.annotation.tailrec
import scala.concurrent.Await
import scala.concurrent.duration._

4
akka-docs/src/test/scala/docs/stream/cookbook/RecipeReduceByKey.scala
View file

@ -1,11 +1,9 @@
package docs.stream.cookbook
import akka.NotUsed
import akka.stream.{ Graph, FlowShape, Inlet, Outlet, Attributes, OverflowStrategy }
import akka.stream.scaladsl._
import scala.concurrent.{ Await, Future }
import scala.concurrent.Await
import scala.concurrent.duration._
import akka.stream.stage.{ GraphStage, GraphStageLogic }
class RecipeReduceByKey extends RecipeSpec {

2
akka-docs/src/test/scala/docs/stream/cookbook/RecipeSeq.scala
View file

@ -5,8 +5,6 @@ package docs.stream.cookbook
import akka.stream.scaladsl._
import scala.concurrent.Future
import org.scalatest.concurrent.ScalaFutures
import scala.concurrent.duration._
class RecipeSeq extends RecipeSpec {

2
akka-docs/src/test/scala/docs/stream/cookbook/RecipeSpec.scala
View file

@ -7,7 +7,5 @@ trait RecipeSpec extends AkkaSpec {
implicit val m = ActorMaterializer()
type Message = String
type Trigger = Unit
type Job = String
}

1
akka-docs/src/test/scala/docs/stream/cookbook/RecipeWorkerPool.scala
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@ -3,7 +3,6 @@ package docs.stream.cookbook
import akka.NotUsed
import akka.stream.FlowShape
import akka.stream.scaladsl._
import akka.testkit.TestProbe
import scala.concurrent.Await
import scala.concurrent.duration._