Question

我尝试编写pubsub的测试：

@Test
public void sendTopic() throws Exception {

    CustomSubscriber customSubscriber = new CustomSubscriber();
    customSubscriber.startAndWait();

    CustomPublisher customPublisher = new CustomPublisher();
    customPublisher.publish("123");
}

和

public CustomSubscriber() {
    this.subscriptionName = SubscriptionName.create(SdkServiceConfig.s.GCP_PROJECT_ID, SdkServiceConfig.s.TOPIC_ID );
    this.receiveMsgAction = (message, consumer) -> {
        // handle incoming message, then ack/nack the received message
        System.out.println("Id : " + message.getMessageId());
        System.out.println("Data : " + message.getData().toStringUtf8());
        consumer.ack();
    };
    this.afterStopAction = new ApiFutureEmpty();
}

// [TARGET startAsync()]
public void startAndWait() throws Exception {
    Subscriber subscriber = createSubscriberWithCustomCredentials();
    subscriber.startAsync();

    // Wait for a stop signal.
    afterStopAction.get();
    subscriber.stopAsync().awaitTerminated();
}

和

public ApiFuture<String> publish(String message) throws Exception {
    ByteString data = ByteString.copyFromUtf8(message);
    PubsubMessage pubsubMessage = PubsubMessage.newBuilder().setData(data).build();
    ApiFuture<String> messageIdFuture = publisher.publish(pubsubMessage);

    ApiFutures.addCallback(messageIdFuture, new ApiFutureCallback<String>() {
        public void onSuccess(String messageId) {
            System.out.println("published with message id: " + messageId);
        }

        public void onFailure(Throwable t) {
            System.out.println("failed to publish: " + t);
        }
    });
    return messageIdFuture;
}

/**
 * Example of creating a {@code Publisher}.
 */
// [TARGET newBuilder(TopicName)]
// [VARIABLE "my_project"]
// [VARIABLE "my_topic"]
public void createPublisher(String projectId, String topicId) throws Exception {
    TopicName topic = TopicName.create(projectId, topicId);
    try {
        publisher = createPublisherWithCustomCredentials(topic);

    } finally {
        // When finished with the publisher, make sure to shutdown to free up resources.
        publisher.shutdown();
    }
}

当我运行代码时，我收到此错误：

Caused by: io.grpc.StatusRuntimeException: NOT_FOUND: Resource not found (resource=add-partner-request).

我缺少什么？

Answer 1

任何名为“ add-partner-request”的实体均未成功创建或不属于该项目。如果“ add-partner-request”是主题，那么您实际上需要创建该主题； TopicName.create(projectId, topicId)行不足以创建主题本身。通常，可以在Cloud Pub/Sub portion of the Cloud console或通过gcloud命令（例如，

）创建主题

gcloud pubsub topics create add-partner-request

确保您在控制台中登录的项目是代码中使用的项目。您还应该在通过--project标志创建主题时显式设置项目，或验证默认项目是否正确：

gcloud config list --format='text(core.project)'

对于测试，通常在代码中创建和删除。例如，要创建一个主题：

Topic topic = null;
ProjectTopicName topicName = ProjectTopicName.of(projectId, topicId);
TopicAdminClient topicAdminClient = TopicAdminClient.create();
try {
  topic = topicAdminClient.createTopic(topicName);
} catch (APIException e) {
  System.out.println("Issue creating topic!");
}

如果“ add-partner-request”是订阅名称，则适用相同的条件。 gcloud命令将有所改变：

gcloud pubsub subscriptions create add-partner-request --topic=<topic name>

使用Java创建订阅的命令如下：

Subscription subscription = null;
ProjectTopicName topicName = ProjectTopicName.of(projectId, topicId);
ProjectSubscriptionName subscriptionName = ProjectSubscriptionName.of(projectId, subscriptionId);
SubscriptionAdminClient subscriptionAdminClient = SubscriptionAdminClient.create();
try {
  subscription = subscriptionAdminClient.createSubscription(
          subscriptionName, topicName, PushConfig.newBuilder().build(), 600);
} catch (APIException e) {
  System.out.println("Issue creating topic!");
}

Answer 2

我假设TOPIC_ID是您主题的名称;你实际上需要引用订阅。您可以从GCP控制台轻松创建订阅，然后在SubscriptionName.create（project，yoursubscriptionname）中引用该名称

Answer 3

我认为您忘记使用以下名称“add-partner-request”在项目中创建主题。您可以使用以下代码创建它：

try (TopicAdminClient topicAdminClient = TopicAdminClient.create()) {
  // projectId <=  unique project identifier, eg. "my-project-id"
  TopicName topicName = TopicName.create(projectId, "add-partner-request");
  Topic topic = topicAdminClient.createTopic(topicName);
  return topic;
}

引起：io.grpc.StatusRuntimeException：NOT_FOUND：找不到资源

3 个答案: