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=per #3774 Persistence activator templates

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Martin Krasser 2014-02-03 16:08:19 +01:00 • committed by Patrik Nordwall
parent 1e86e6436b
commit cf6e61e45a
31 changed files with 518 additions and 76 deletions
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90
akka-samples/akka-sample-persistence/src/main/java/sample/persistence/japi/ViewExample.java
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@ -1,90 +0,0 @@
package sample.persistence.japi;
import java.util.Scanner;
import akka.actor.*;
import akka.persistence.*;
public class ViewExample {
public static class ExampleProcessor extends UntypedProcessor {
@Override
public String processorId() {
return "processor-5";
}
@Override
public void onReceive(Object message) throws Exception {
if (message instanceof Persistent) {
Persistent p = (Persistent)message;
System.out.println(String.format("processor received %s (sequence nr = %d)", p.payload(), p.sequenceNr()));
}
}
}
public static class ExampleView extends UntypedView {
private final ActorRef destination = getContext().actorOf(Props.create(ExampleDestination.class));
private final ActorRef channel = getContext().actorOf(Channel.props("channel"));
private int numReplicated = 0;
@Override
public String viewId() {
return "view-5";
}
@Override
public String processorId() {
return "processor-5";
}
@Override
public void onReceive(Object message) throws Exception {
if (message instanceof Persistent) {
Persistent p = (Persistent)message;
numReplicated += 1;
System.out.println(String.format("view received %s (sequence nr = %d, num replicated = %d)", p.payload(), p.sequenceNr(), numReplicated));
channel.tell(Deliver.create(p.withPayload("replicated-" + p.payload()), destination.path()), getSelf());
} else if (message instanceof SnapshotOffer) {
SnapshotOffer so = (SnapshotOffer)message;
numReplicated = (Integer)so.snapshot();
System.out.println(String.format("view received snapshot offer %s (metadata = %s)", numReplicated, so.metadata()));
} else if (message.equals("snap")) {
saveSnapshot(numReplicated);
}
}
}
public static class ExampleDestination extends UntypedActor {
@Override
public void onReceive(Object message) throws Exception {
if (message instanceof ConfirmablePersistent) {
ConfirmablePersistent cp = (ConfirmablePersistent)message;
System.out.println(String.format("destination received %s (sequence nr = %s)", cp.payload(), cp.sequenceNr()));
cp.confirm();
}
}
}
public static void main(String... args) throws Exception {
final ActorSystem system = ActorSystem.create("example");
final ActorRef processor = system.actorOf(Props.create(ExampleProcessor.class));
final ActorRef view = system.actorOf(Props.create(ExampleView.class));
Scanner scanner = new Scanner(System.in);
while (scanner.hasNextLine()) {
String line = scanner.nextLine();
if (line.equals("exit")) {
break;
} else if (line.equals("sync")) {
view.tell(Update.create(false), null);
} else if (line.equals("snap")) {
view.tell("snap", null);
} else {
processor.tell(Persistent.create(line), null);
}
}
system.shutdown();
}
}