Examples with ExecutorAsBackgroundResource com.google.api.gax.core.ExecutorAsBackgroundResource used on opensource projects

Example 1 with ExecutorAsBackgroundResource

use of com.google.api.gax.core.ExecutorAsBackgroundResource in project gax-java by googleapis.

the class ClientContext method create.

/**
 * Instantiates the executor, credentials, and transport context based on the given client
 * settings.
 */
public static ClientContext create(StubSettings settings) throws IOException {
    ApiClock clock = settings.getClock();
    ExecutorProvider backgroundExecutorProvider = settings.getBackgroundExecutorProvider();
    final ScheduledExecutorService backgroundExecutor = backgroundExecutorProvider.getExecutor();
    Credentials credentials = settings.getCredentialsProvider().getCredentials();
    if (settings.getQuotaProjectId() != null) {
        // If the quotaProjectId is set, wrap original credentials with correct quotaProjectId as
        // QuotaProjectIdHidingCredentials.
        // Ensure that a custom set quota project id takes priority over one detected by credentials.
        // Avoid the backend receiving possibly conflict values of quotaProjectId
        credentials = new QuotaProjectIdHidingCredentials(credentials);
    }
    TransportChannelProvider transportChannelProvider = settings.getTransportChannelProvider();
    // will have a default executor if it needs one.
    if (transportChannelProvider.needsExecutor() && settings.getExecutorProvider() != null) {
        transportChannelProvider = transportChannelProvider.withExecutor(backgroundExecutor);
    }
    Map<String, String> headers = getHeadersFromSettings(settings);
    if (transportChannelProvider.needsHeaders()) {
        transportChannelProvider = transportChannelProvider.withHeaders(headers);
    }
    if (transportChannelProvider.needsCredentials() && credentials != null) {
        transportChannelProvider = transportChannelProvider.withCredentials(credentials);
    }
    String endpoint = getEndpoint(settings.getEndpoint(), settings.getMtlsEndpoint(), settings.getSwitchToMtlsEndpointAllowed(), new MtlsProvider());
    if (transportChannelProvider.needsEndpoint()) {
        transportChannelProvider = transportChannelProvider.withEndpoint(endpoint);
    }
    TransportChannel transportChannel = transportChannelProvider.getTransportChannel();
    ApiCallContext defaultCallContext = transportChannel.getEmptyCallContext().withTransportChannel(transportChannel);
    if (credentials != null) {
        defaultCallContext = defaultCallContext.withCredentials(credentials);
    }
    WatchdogProvider watchdogProvider = settings.getStreamWatchdogProvider();
    @Nullable Watchdog watchdog = null;
    if (watchdogProvider != null) {
        if (watchdogProvider.needsCheckInterval()) {
            watchdogProvider = watchdogProvider.withCheckInterval(settings.getStreamWatchdogCheckInterval());
        }
        if (watchdogProvider.needsClock()) {
            watchdogProvider = watchdogProvider.withClock(clock);
        }
        if (watchdogProvider.needsExecutor()) {
            watchdogProvider = watchdogProvider.withExecutor(backgroundExecutor);
        }
        watchdog = watchdogProvider.getWatchdog();
    }
    ImmutableList.Builder<BackgroundResource> backgroundResources = ImmutableList.builder();
    if (transportChannelProvider.shouldAutoClose()) {
        backgroundResources.add(transportChannel);
    }
    if (backgroundExecutorProvider.shouldAutoClose()) {
        backgroundResources.add(new ExecutorAsBackgroundResource(backgroundExecutor));
    }
    if (watchdogProvider != null && watchdogProvider.shouldAutoClose()) {
        backgroundResources.add(watchdog);
    }
    return newBuilder().setBackgroundResources(backgroundResources.build()).setExecutor(backgroundExecutor).setCredentials(credentials).setTransportChannel(transportChannel).setHeaders(ImmutableMap.copyOf(settings.getHeaderProvider().getHeaders())).setInternalHeaders(ImmutableMap.copyOf(settings.getInternalHeaderProvider().getHeaders())).setClock(clock).setDefaultCallContext(defaultCallContext).setEndpoint(settings.getEndpoint()).setQuotaProjectId(settings.getQuotaProjectId()).setStreamWatchdog(watchdog).setStreamWatchdogCheckInterval(settings.getStreamWatchdogCheckInterval()).setTracerFactory(settings.getTracerFactory()).build();
}

Example 2 with ExecutorAsBackgroundResource

use of com.google.api.gax.core.ExecutorAsBackgroundResource in project java-pubsub by googleapis.

the class Subscriber method startStreamingConnections.

private void startStreamingConnections() {
    synchronized (streamingSubscriberConnections) {
        for (int i = 0; i < numPullers; i++) {
            final ScheduledExecutorService executor = executorProvider.getExecutor();
            if (executorProvider.shouldAutoClose()) {
                backgroundResources.add(new ExecutorAsBackgroundResource((executor)));
            }
            StreamingSubscriberConnection.Builder streamingSubscriberConnectionBuilder;
            if (receiverWithAckResponse != null) {
                streamingSubscriberConnectionBuilder = StreamingSubscriberConnection.newBuilder(receiverWithAckResponse);
            } else {
                streamingSubscriberConnectionBuilder = StreamingSubscriberConnection.newBuilder(receiver);
            }
            StreamingSubscriberConnection streamingSubscriberConnection = streamingSubscriberConnectionBuilder.setSubscription(subscriptionName).setAckExpirationPadding(ACK_EXPIRATION_PADDING_DEFAULT).setMaxAckExtensionPeriod(maxAckExtensionPeriod).setMinDurationPerAckExtension(minDurationPerAckExtension).setMinDurationPerAckExtensionDefaultUsed(minDurationPerAckExtensionDefaultUsed).setMaxDurationPerAckExtension(maxDurationPerAckExtension).setMaxDurationPerAckExtensionDefaultUsed(maxDurationPerAckExtensionDefaultUsed).setAckLatencyDistribution(ackLatencyDistribution).setSubscriberStub(subscriberStub).setChannelAffinity(i).setFlowControlSettings(flowControlSettings).setFlowController(flowController).setUseLegacyFlowControl(useLegacyFlowControl).setExecutor(executor).setSystemExecutor(alarmsExecutor).setClock(clock).build();
            streamingSubscriberConnections.add(streamingSubscriberConnection);
        }
        startConnections(streamingSubscriberConnections, new Listener() {

            @Override
            public void failed(State from, Throwable failure) {
                // If a connection failed is because of a fatal error, we should fail the
                // whole subscriber.
                runShutdown();
                try {
                    notifyFailed(failure);
                } catch (IllegalStateException e) {
                    if (isRunning()) {
                        throw e;
                    }
                // It could happen that we are shutting down while some channels fail.
                }
            }
        });
    }
}