本文整理汇总了Java中com.google.cloud.pubsub.v1.Publisher.shutdown方法的典型用法代码示例。如果您正苦于以下问题：Java Publisher.shutdown方法的具体用法？Java Publisher.shutdown怎么用？Java Publisher.shutdown使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类com.google.cloud.pubsub.v1.Publisher的用法示例。
在下文中一共展示了Publisher.shutdown方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: main
import com.google.cloud.pubsub.v1.Publisher; //导入方法依赖的package包/类
/** Publish messages to a topic.
* @param args topic name, number of messages
*/
public static void main(String... args) throws Exception {
// topic id, eg. "my-topic"
String topicId = args[0];
int messageCount = Integer.parseInt(args[1]);
TopicName topicName = TopicName.of(PROJECT_ID, topicId);
Publisher publisher = null;
try {
// Create a publisher instance with default settings bound to the topic
publisher = Publisher.newBuilder(topicName).build();
for (int i = 0; i < messageCount; i++) {
String message = "message-" + i;
// convert message to bytes
ByteString data = ByteString.copyFromUtf8(message);
PubsubMessage pubsubMessage = PubsubMessage.newBuilder()
.setData(data)
.build();
//schedule a message to be published, messages are automatically batched
ApiFuture<String> future = publisher.publish(pubsubMessage);
// add an asynchronous callback to handle success / failure
ApiFutures.addCallback(future, new ApiFutureCallback<String>() {
@Override
public void onFailure(Throwable throwable) {
if (throwable instanceof ApiException) {
ApiException apiException = ((ApiException) throwable);
// details on the API exception
System.out.println(apiException.getStatusCode().getCode());
System.out.println(apiException.isRetryable());
}
System.out.println("Error publishing message : " + message);
}
@Override
public void onSuccess(String messageId) {
// Once published, returns server-assigned message ids (unique within the topic)
System.out.println(messageId);
}
});
}
} finally {
if (publisher != null) {
// When finished with the publisher, shutdown to free up resources.
publisher.shutdown();
}
}
}