+act,sam,doc #3940 Added receive setter for Java Lambda actors
* Added a setter for Java lambda actors to "hide" the not so nice looking type signature of the "receive" method. * Updated docs to reflect the changes. * Converted samples to use the new setter.
This commit is contained in:
Björn Antonsson
parent
30ae25a90c
commit
723c931d16
23 changed files with 683 additions and 570 deletions
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@ -35,24 +35,25 @@ public class LambdaPersistenceDocTest {
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static Object o1 = new Object() {
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//#definition
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class MyProcessor extends AbstractProcessor {
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@Override public PartialFunction<Object, BoxedUnit> receive() {
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return ReceiveBuilder.
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match(Persistent.class, p -> {
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// message successfully written to journal
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Object payload = p.payload();
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Long sequenceNr = p.sequenceNr();
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// ...
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}).
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match(PersistenceFailure.class, failure -> {
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// message failed to be written to journal
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Object payload = failure.payload();
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Long sequenceNr = failure.sequenceNr();
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Throwable cause = failure.cause();
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// ...
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}).
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matchAny(otherwise -> {
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// message not written to journal
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}).build();
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public MyProcessor() {
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receive(ReceiveBuilder.
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match(Persistent.class, p -> {
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// message successfully written to journal
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Object payload = p.payload();
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Long sequenceNr = p.sequenceNr();
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// ...
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}).
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match(PersistenceFailure.class, failure -> {
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// message failed to be written to journal
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Object payload = failure.payload();
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Long sequenceNr = failure.sequenceNr();
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Throwable cause = failure.cause();
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// ...
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}).
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matchAny(otherwise -> {
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// message not written to journal
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}).build()
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);
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}
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}
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//#definition
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@ -67,11 +68,10 @@ public class LambdaPersistenceDocTest {
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processor.tell(Persistent.create("foo"), null);
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processor.tell("bar", null);
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//#usage
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}
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@Override public PartialFunction<Object, BoxedUnit> receive() {
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return ReceiveBuilder.
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match(Persistent.class, received -> {/* ... */}).build();
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receive(ReceiveBuilder.
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match(Persistent.class, received -> {/* ... */}).build()
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);
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}
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private void recover() {
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@ -124,9 +124,10 @@ public class LambdaPersistenceDocTest {
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}
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//#processor-id-override
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@Override public PartialFunction<Object, BoxedUnit> receive() {
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return ReceiveBuilder.
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match(Persistent.class, received -> {/* ... */}).build();
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public MyProcessor4() {
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receive(ReceiveBuilder.
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match(Persistent.class, received -> {/* ... */}).build()
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);
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}
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}
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};
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@ -140,27 +141,27 @@ public class LambdaPersistenceDocTest {
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public MyProcessor() {
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this.destination = context().actorOf(Props.create(MyDestination.class));
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this.channel = context().actorOf(Channel.props(), "myChannel");
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}
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@Override public PartialFunction<Object, BoxedUnit> receive() {
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return ReceiveBuilder.
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match(Persistent.class, p -> {
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Persistent out = p.withPayload("done " + p.payload());
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channel.tell(Deliver.create(out, destination.path()), self());
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}).build();
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receive(ReceiveBuilder.
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match(Persistent.class, p -> {
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Persistent out = p.withPayload("done " + p.payload());
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channel.tell(Deliver.create(out, destination.path()), self());
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}).build()
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);
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}
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}
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class MyDestination extends AbstractActor {
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@Override public PartialFunction<Object, BoxedUnit> receive() {
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return ReceiveBuilder.
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match(ConfirmablePersistent.class, p -> {
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Object payload = p.payload();
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Long sequenceNr = p.sequenceNr();
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int redeliveries = p.redeliveries();
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// ...
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p.confirm();
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}).build();
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public MyDestination() {
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receive(ReceiveBuilder.
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match(ConfirmablePersistent.class, p -> {
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Object payload = p.payload();
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Long sequenceNr = p.sequenceNr();
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int redeliveries = p.redeliveries();
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// ...
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p.confirm();
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}).build()
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);
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}
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}
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//#channel-example
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@ -177,39 +178,38 @@ public class LambdaPersistenceDocTest {
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//#channel-custom-settings
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context().actorOf(
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Channel.props(ChannelSettings.create()
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.withRedeliverInterval(Duration.create(30, TimeUnit.SECONDS))
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.withRedeliverMax(15)));
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Channel.props(ChannelSettings.create()
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.withRedeliverInterval(Duration.create(30, TimeUnit.SECONDS))
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.withRedeliverMax(15)));
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//#channel-custom-settings
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//#channel-custom-listener
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class MyListener extends AbstractActor {
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@Override public PartialFunction<Object, BoxedUnit> receive() {
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return ReceiveBuilder.
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match(RedeliverFailure.class, r -> {
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Iterable<ConfirmablePersistent> messages = r.getMessages();
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// ...
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}).build();
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public MyListener() {
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receive(ReceiveBuilder.
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match(RedeliverFailure.class, r -> {
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Iterable<ConfirmablePersistent> messages = r.getMessages();
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// ...
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}).build()
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);
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}
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}
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final ActorRef myListener = context().actorOf(Props.create(MyListener.class));
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context().actorOf(Channel.props(
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ChannelSettings.create().withRedeliverFailureListener(null)));
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ChannelSettings.create().withRedeliverFailureListener(null)));
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//#channel-custom-listener
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}
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receive(ReceiveBuilder.
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match(Persistent.class, p -> {
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Persistent out = p.withPayload("done " + p.payload());
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channel.tell(Deliver.create(out, destination.path()), self());
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@Override public PartialFunction<Object, BoxedUnit> receive() {
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return ReceiveBuilder.
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match(Persistent.class, p -> {
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Persistent out = p.withPayload("done " + p.payload());
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channel.tell(Deliver.create(out, destination.path()), self());
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//#channel-example-reply
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channel.tell(Deliver.create(out, sender().path()), self());
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//#channel-example-reply
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}).build();
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//#channel-example-reply
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channel.tell(Deliver.create(out, sender().path()), self());
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//#channel-example-reply
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}).build()
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);
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}
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}
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};
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@ -219,18 +219,19 @@ public class LambdaPersistenceDocTest {
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class MyProcessor extends AbstractProcessor {
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private Object state;
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@Override public PartialFunction<Object, BoxedUnit> receive() {
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return ReceiveBuilder.
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match(String.class, s -> s.equals("snap"),
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s -> saveSnapshot(state)).
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match(SaveSnapshotSuccess.class, ss -> {
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SnapshotMetadata metadata = ss.metadata();
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// ...
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}).
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match(SaveSnapshotFailure.class, sf -> {
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SnapshotMetadata metadata = sf.metadata();
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// ...
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}).build();
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public MyProcessor() {
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receive(ReceiveBuilder.
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match(String.class, s -> s.equals("snap"),
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s -> saveSnapshot(state)).
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match(SaveSnapshotSuccess.class, ss -> {
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SnapshotMetadata metadata = ss.metadata();
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// ...
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}).
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match(SaveSnapshotFailure.class, sf -> {
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SnapshotMetadata metadata = sf.metadata();
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// ...
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}).build()
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);
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}
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}
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//#save-snapshot
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@ -241,13 +242,14 @@ public class LambdaPersistenceDocTest {
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class MyProcessor extends AbstractProcessor {
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private Object state;
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@Override public PartialFunction<Object, BoxedUnit> receive() {
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return ReceiveBuilder.
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match(SnapshotOffer.class, s -> {
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state = s.snapshot();
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// ...
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}).
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match(Persistent.class, p -> {/* ...*/}).build();
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public MyProcessor() {
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receive(ReceiveBuilder.
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match(SnapshotOffer.class, s -> {
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state = s.snapshot();
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// ...
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}).
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match(Persistent.class, p -> {/* ...*/}).build()
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);
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}
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}
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//#snapshot-offer
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@ -257,17 +259,16 @@ public class LambdaPersistenceDocTest {
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public MyActor() {
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processor = context().actorOf(Props.create(MyProcessor.class));
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}
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@Override public PartialFunction<Object, BoxedUnit> receive() {
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return ReceiveBuilder.match(Object.class, o -> {/* ... */}).build();
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receive(ReceiveBuilder.
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match(Object.class, o -> {/* ... */}).build()
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);
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}
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private void recover() {
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//#snapshot-criteria
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processor.tell(Recover.create(
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SnapshotSelectionCriteria
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.create(457L, System.currentTimeMillis())), null);
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SnapshotSelectionCriteria
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.create(457L, System.currentTimeMillis())), null);
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//#snapshot-criteria
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}
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}
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@ -276,12 +277,13 @@ public class LambdaPersistenceDocTest {
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static Object o6 = new Object() {
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//#batch-write
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class MyProcessor extends AbstractProcessor {
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@Override public PartialFunction<Object, BoxedUnit> receive() {
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return ReceiveBuilder.
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match(Persistent.class, p -> p.payload().equals("a"),
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p -> {/* ... */}).
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match(Persistent.class, p -> p.payload().equals("b"),
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p -> {/* ... */}).build();
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public MyProcessor() {
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receive(ReceiveBuilder.
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match(Persistent.class, p -> p.payload().equals("a"),
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p -> {/* ... */}).
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match(Persistent.class, p -> p.payload().equals("b"),
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p -> {/* ... */}).build()
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);
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}
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}
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@ -291,8 +293,8 @@ public class LambdaPersistenceDocTest {
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public void batchWrite() {
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processor.tell(PersistentBatch
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.create(asList(Persistent.create("a"),
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Persistent.create("b"))), null);
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.create(asList(Persistent.create("a"),
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Persistent.create("b"))), null);
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}
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// ...
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@ -307,18 +309,18 @@ public class LambdaPersistenceDocTest {
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public void foo() {
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//#persistent-channel-example
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final ActorRef channel = context().actorOf(
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PersistentChannel.props(
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PersistentChannelSettings.create()
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.withRedeliverInterval(Duration.create(30, TimeUnit.SECONDS))
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.withRedeliverMax(15)),
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"myPersistentChannel");
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PersistentChannel.props(
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PersistentChannelSettings.create()
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.withRedeliverInterval(Duration.create(30, TimeUnit.SECONDS))
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.withRedeliverMax(15)),
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"myPersistentChannel");
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channel.tell(Deliver.create(Persistent.create("example"), destination.path()), self());
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//#persistent-channel-example
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//#persistent-channel-watermarks
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PersistentChannelSettings.create()
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.withPendingConfirmationsMax(10000)
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.withPendingConfirmationsMin(2000);
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.withPendingConfirmationsMax(10000)
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.withPendingConfirmationsMin(2000);
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//#persistent-channel-watermarks
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//#persistent-channel-reply
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PersistentChannelSettings.create().withReplyPersistent(true);
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@ -343,19 +345,19 @@ public class LambdaPersistenceDocTest {
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// ...
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// reliably deliver events
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channel.tell(Deliver.create(
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Persistent.create(event, getCurrentPersistentMessage()),
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destination.path()), self());
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Persistent.create(event, getCurrentPersistentMessage()),
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destination.path()), self());
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}
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@Override public PartialFunction<Object, BoxedUnit> receiveRecover() {
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return ReceiveBuilder.
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match(String.class, this::handleEvent).build();
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match(String.class, this::handleEvent).build();
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}
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@Override public PartialFunction<Object, BoxedUnit> receiveCommand() {
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return ReceiveBuilder.
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match(String.class, s -> s.equals("cmd"),
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s -> persist("evt", this::handleEvent)).build();
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match(String.class, s -> s.equals("cmd"),
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s -> persist("evt", this::handleEvent)).build();
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}
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}
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//#reliable-event-delivery
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@ -369,11 +371,12 @@ public class LambdaPersistenceDocTest {
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return "some-processor-id";
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}
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@Override public PartialFunction<Object, BoxedUnit> receive() {
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return ReceiveBuilder.
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match(Persistent.class, peristent -> {
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// ...
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}).build();
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public MyView() {
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receive(ReceiveBuilder.
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match(Persistent.class, persistent -> {
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// ...
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}).build()
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);
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}
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}
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//#view
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