Examples with Publisher com.google.cloud.pubsub.v1.Publisher used on opensource projects

Example 16 with Publisher

use of com.google.cloud.pubsub.v1.Publisher in project google-cloud-java by GoogleCloudPlatform.

the class PublisherSnippets method getPublisherWithCustomRetrySettings.

public Publisher getPublisherWithCustomRetrySettings(TopicName topicName) throws Exception {
    // [START pubsub_publisher_retry_settings]
    // Retry settings control how the publisher handles retryable failures
    // default : 1 ms
    Duration retryDelay = Duration.ofMillis(100);
    // back off for repeated failures
    double retryDelayMultiplier = 2.0;
    // default : 10 seconds
    Duration maxRetryDelay = Duration.ofSeconds(5);
    RetrySettings retrySettings = RetrySettings.newBuilder().setInitialRetryDelay(retryDelay).setRetryDelayMultiplier(retryDelayMultiplier).setMaxRetryDelay(maxRetryDelay).build();
    Publisher publisher = Publisher.defaultBuilder(topicName).setRetrySettings(retrySettings).build();
    // [END pubsub_publisher_retry_settings]
    return publisher;
}

Example 17 with Publisher

use of com.google.cloud.pubsub.v1.Publisher in project google-cloud-java by GoogleCloudPlatform.

the class PublisherSnippets method createPublisherWithCustomCredentials.

private Publisher createPublisherWithCustomCredentials(TopicName topicName) throws Exception {
    // [START pubsub_publisher_custom_credentials]
    // read service account credentials from file
    CredentialsProvider credentialsProvider = FixedCredentialsProvider.create(ServiceAccountCredentials.fromStream(new FileInputStream("credentials.json")));
    ChannelProvider channelProvider = TopicAdminSettings.defaultChannelProviderBuilder().setCredentialsProvider(credentialsProvider).build();
    Publisher publisher = Publisher.defaultBuilder(topicName).setChannelProvider(channelProvider).build();
    // [END pubsub_publisher_custom_credentials]
    return publisher;
}

Example 18 with Publisher

use of com.google.cloud.pubsub.v1.Publisher in project google-cloud-java by GoogleCloudPlatform.

the class PublisherSnippets method newBuilder.

/** Example of creating a {@code Publisher}. */
// [TARGET newBuilder(TopicName)]
// [VARIABLE "my_project"]
// [VARIABLE "my_topic"]
public static void newBuilder(String projectId, String topicId) throws Exception {
    TopicName topic = TopicName.create(projectId, topicId);
    Publisher publisher = Publisher.defaultBuilder(topic).build();
    try {
    // ...
    } finally {
        // When finished with the publisher, make sure to shutdown to free up resources.
        publisher.shutdown();
    }
}

Example 19 with Publisher

use of com.google.cloud.pubsub.v1.Publisher in project divolte-collector by divolte.

the class GoogleCloudPubSubFlusherTest method resetMessages.

@Before
public void resetMessages() {
    final long now = System.currentTimeMillis();
    partyId = Optional.of(DivolteIdentifier.generate(now));
    sessionId = Optional.of(DivolteIdentifier.generate(now));
    generatedEventCounter = 0;
    messageIdCounter = 0;
    final Publisher mockPublisher = mock(Publisher.class);
    when(mockPublisher.publish(any(PubsubMessage.class))).thenAnswer(invocationOnMock -> completedFuture(String.valueOf(messageIdCounter++)));
    this.mockPublisher = Optional.of(mockPublisher);
}

Example 20 with Publisher

use of com.google.cloud.pubsub.v1.Publisher in project divolte-collector by divolte.

the class GoogleCloudPubSubFlusherTest method getFirstPublishedMessage.

private PubsubMessage getFirstPublishedMessage() {
    final Publisher publisher = mockPublisher.orElseThrow(IllegalStateException::new);
    final ArgumentCaptor<PubsubMessage> argumentCaptor = ArgumentCaptor.forClass(PubsubMessage.class);
    verify(publisher).publish(argumentCaptor.capture());
    return argumentCaptor.getValue();
}