Examples with WaitUntilReadyCompletedEvent com.couchbase.client.core.cnc.events.core.WaitUntilReadyCompletedEvent used on opensource projects

Example 1 with WaitUntilReadyCompletedEvent

use of com.couchbase.client.core.cnc.events.core.WaitUntilReadyCompletedEvent in project couchbase-jvm-clients by couchbase.

the class WaitUntilReadyHelper method waitUntilReady.

@Stability.Internal
public static CompletableFuture<Void> waitUntilReady(final Core core, final Set<ServiceType> serviceTypes, final Duration timeout, final ClusterState desiredState, final Optional<String> bucketName) {
    final WaitUntilReadyState state = new WaitUntilReadyState();
    state.transition(WaitUntilReadyStage.CONFIG_LOAD);
    return Flux.interval(Duration.ofMillis(10), core.context().environment().scheduler()).onBackpressureDrop().filter(i -> !(core.configurationProvider().bucketConfigLoadInProgress() || core.configurationProvider().globalConfigLoadInProgress() || (bucketName.isPresent() && core.configurationProvider().collectionRefreshInProgress()) || (bucketName.isPresent() && core.clusterConfig().bucketConfig(bucketName.get()) == null))).filter(i -> {
        // created.
        if (bucketName.isPresent()) {
            state.transition(WaitUntilReadyStage.BUCKET_CONFIG_READY);
            BucketConfig bucketConfig = core.clusterConfig().bucketConfig(bucketName.get());
            long extNodes = bucketConfig.portInfos().stream().filter(p -> p.ports().containsKey(ServiceType.KV)).count();
            long visibleNodes = bucketConfig.nodes().stream().filter(n -> n.services().containsKey(ServiceType.KV)).count();
            return extNodes > 0 && extNodes == visibleNodes;
        } else {
            return true;
        }
    }).flatMap(i -> {
        if (bucketName.isPresent()) {
            state.transition(WaitUntilReadyStage.BUCKET_NODES_HEALTHY);
            // To avoid tmpfails on the bucket, we double check that all nodes from the nodes list are
            // in a healthy status - but for this we need to actually fetch the verbose config, since
            // the terse one doesn't have that status in it.
            GenericManagerRequest request = new GenericManagerRequest(core.context(), () -> new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "/pools/default/buckets/" + bucketName.get()), true, null);
            core.send(request);
            return Reactor.wrap(request, request.response(), true).filter(response -> {
                if (response.status() != ResponseStatus.SUCCESS) {
                    return false;
                }
                ObjectNode root = (ObjectNode) Mapper.decodeIntoTree(response.content());
                ArrayNode nodes = (ArrayNode) root.get("nodes");
                long healthy = StreamSupport.stream(nodes.spliterator(), false).filter(node -> node.get("status").asText().equals("healthy")).count();
                return nodes.size() == healthy;
            }).map(ignored -> i);
        } else {
            return Flux.just(i);
        }
    }).take(1).flatMap(aLong -> {
        // to being ready at this point. Bucket level wait until ready is the way to go there.
        if (!bucketName.isPresent() && !core.clusterConfig().hasClusterOrBucketConfig()) {
            state.transition(WaitUntilReadyStage.COMPLETE);
            WaitUntilReadyContext waitUntilReadyContext = new WaitUntilReadyContext(servicesToCheck(core, serviceTypes, bucketName), timeout, desiredState, bucketName, core.diagnostics().collect(Collectors.groupingBy(EndpointDiagnostics::type)), state);
            core.context().environment().eventBus().publish(new WaitUntilReadyCompletedEvent(waitUntilReadyContext, WaitUntilReadyCompletedEvent.Reason.CLUSTER_LEVEL_NOT_SUPPORTED));
            return Flux.empty();
        }
        state.transition(WaitUntilReadyStage.PING);
        final Flux<ClusterState> diagnostics = Flux.interval(Duration.ofMillis(10), core.context().environment().scheduler()).onBackpressureDrop().map(i -> diagnosticsCurrentState(core)).takeUntil(s -> s == desiredState);
        return Flux.concat(ping(core, servicesToCheck(core, serviceTypes, bucketName), timeout, bucketName), diagnostics);
    }).then().timeout(timeout, Mono.defer(() -> {
        WaitUntilReadyContext waitUntilReadyContext = new WaitUntilReadyContext(servicesToCheck(core, serviceTypes, bucketName), timeout, desiredState, bucketName, core.diagnostics().collect(Collectors.groupingBy(EndpointDiagnostics::type)), state);
        CancellationErrorContext errorContext = new CancellationErrorContext(waitUntilReadyContext);
        return Mono.error(new UnambiguousTimeoutException("WaitUntilReady timed out", errorContext));
    }), core.context().environment().scheduler()).doOnSuccess(unused -> {
        state.transition(WaitUntilReadyStage.COMPLETE);
        WaitUntilReadyContext waitUntilReadyContext = new WaitUntilReadyContext(servicesToCheck(core, serviceTypes, bucketName), timeout, desiredState, bucketName, core.diagnostics().collect(Collectors.groupingBy(EndpointDiagnostics::type)), state);
        core.context().environment().eventBus().publish(new WaitUntilReadyCompletedEvent(waitUntilReadyContext, WaitUntilReadyCompletedEvent.Reason.SUCCESS));
    }).toFuture();
}