@SuppressWarnings("unchecked")
@Test
public void demonstrateGetWithRequestContext() {
probe = new JavaTestKit(system);
// #get-request-context
final ActorRef replicator = DistributedData.get(system).replicator();
final ReadConsistency readTwo = new ReadFrom(2, Duration.create(3, SECONDS));
final Key<PNCounter> counter1Key = PNCounterKey.create("counter1");
receive(
ReceiveBuilder.match(
String.class,
a -> a.equals("get-count"),
a -> {
// incoming request to retrieve current value of the counter
Optional<Object> reqContext = Optional.of(sender());
replicator.tell(new Replicator.Get<PNCounter>(counter1Key, readTwo), self());
})
.match(
GetSuccess.class,
a -> a.key().equals(counter1Key),
a -> {
ActorRef replyTo = (ActorRef) a.getRequest().get();
GetSuccess<PNCounter> g = a;
long value = g.dataValue().getValue().longValue();
replyTo.tell(value, self());
})
.match(
GetFailure.class,
a -> a.key().equals(counter1Key),
a -> {
ActorRef replyTo = (ActorRef) a.getRequest().get();
replyTo.tell(-1L, self());
})
.match(
NotFound.class,
a -> a.key().equals(counter1Key),
a -> {
ActorRef replyTo = (ActorRef) a.getRequest().get();
replyTo.tell(0L, self());
})
.build());
// #get-request-context
}
@SuppressWarnings({"unused", "unchecked"})
@Test
public void demonstrateGet() {
probe = new JavaTestKit(system);
// #get
final ActorRef replicator = DistributedData.get(system).replicator();
final Key<PNCounter> counter1Key = PNCounterKey.create("counter1");
final Key<GSet<String>> set1Key = GSetKey.create("set1");
final Key<ORSet<String>> set2Key = ORSetKey.create("set2");
final Key<Flag> activeFlagKey = FlagKey.create("active");
replicator.tell(new Replicator.Get<PNCounter>(counter1Key, Replicator.readLocal()), self());
final ReadConsistency readFrom3 = new ReadFrom(3, Duration.create(1, SECONDS));
replicator.tell(new Replicator.Get<GSet<String>>(set1Key, readFrom3), self());
final ReadConsistency readMajority = new ReadMajority(Duration.create(5, SECONDS));
replicator.tell(new Replicator.Get<ORSet<String>>(set2Key, readMajority), self());
final ReadConsistency readAll = new ReadAll(Duration.create(5, SECONDS));
replicator.tell(new Replicator.Get<Flag>(activeFlagKey, readAll), self());
// #get
// #get-response1
receive(
ReceiveBuilder.match(
GetSuccess.class,
a -> a.key().equals(counter1Key),
a -> {
GetSuccess<PNCounter> g = a;
BigInteger value = g.dataValue().getValue();
})
.match(
NotFound.class,
a -> a.key().equals(counter1Key),
a -> {
// key counter1 does not exist
})
.build());
// #get-response1
// #get-response2
receive(
ReceiveBuilder.match(
GetSuccess.class,
a -> a.key().equals(set1Key),
a -> {
GetSuccess<GSet<String>> g = a;
Set<String> value = g.dataValue().getElements();
})
.match(
GetFailure.class,
a -> a.key().equals(set1Key),
a -> {
// read from 3 nodes failed within 1.second
})
.match(
NotFound.class,
a -> a.key().equals(set1Key),
a -> {
// key set1 does not exist
})
.build());
// #get-response2
}