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Das Codebeispiel im Kontext finden Sie in der folgenden Dokumentation:
Codebeispiel
Java
import com.google.cloud.pubsublite.AdminClient;
import com.google.cloud.pubsublite.AdminClientSettings;
import com.google.cloud.pubsublite.CloudRegion;
import com.google.cloud.pubsublite.CloudZone;
import com.google.cloud.pubsublite.ProjectNumber;
import com.google.cloud.pubsublite.SubscriptionPath;
import com.google.cloud.pubsublite.TopicName;
import com.google.cloud.pubsublite.TopicPath;
import java.util.List;
public class ListSubscriptionsInTopicExample {
public static void main(String... args) throws Exception {
// TODO(developer): Replace these variables before running the sample.
String cloudRegion = "your-cloud-region";
char zoneId = 'b';
long projectNumber = Long.parseLong("123456789");
String topicId = "your-topic-id";
listSubscriptionsInTopicExample(cloudRegion, zoneId, projectNumber, topicId);
}
public static void listSubscriptionsInTopicExample(
String cloudRegion, char zoneId, long projectNumber, String topicId) throws Exception {
TopicPath topicPath =
TopicPath.newBuilder()
.setProject(ProjectNumber.of(projectNumber))
.setLocation(CloudZone.of(CloudRegion.of(cloudRegion), zoneId))
.setName(TopicName.of(topicId))
.build();
AdminClientSettings adminClientSettings =
AdminClientSettings.newBuilder().setRegion(CloudRegion.of(cloudRegion)).build();
try (AdminClient adminClient = AdminClient.create(adminClientSettings)) {
List<SubscriptionPath> subscriptionPaths =
adminClient.listTopicSubscriptions(topicPath).get();
for (SubscriptionPath subscription : subscriptionPaths) {
System.out.println(subscription.toString());
}
System.out.println(subscriptionPaths.size() + " subscription(s) listed.");
}
}
}
Python
from google.cloud.pubsublite import AdminClient
from google.cloud.pubsublite.types import CloudRegion, CloudZone, TopicPath
# TODO(developer):
# project_number = 1122334455
# cloud_region = "us-central1"
# zone_id = "a"
# topic_id = "your-topic-id"
cloud_region = CloudRegion(cloud_region)
location = CloudZone(cloud_region, zone_id)
topic_path = TopicPath(project_number, location, topic_id)
client = AdminClient(cloud_region)
response = client.list_topic_subscriptions(topic_path)
for subscription_path in response:
print(subscription_path)
print(f"{len(response)} subscription(s) listed in your topic.")