Java PublishRequest.setMessages方法代码示例

import com.google.api.services.pubsub.model.PublishRequest; //导入方法依赖的package包/类
/**
 * Publish 'numMessages' arbitrary events from live users with the provided delay, to a
 * PubSub topic.
 */
public static void publishDataToPubSub(int numMessages, int delayInMillis)
    throws IOException {
  List<PubsubMessage> pubsubMessages = new ArrayList<>();

  for (int i = 0; i < Math.max(1, numMessages); i++) {
    Long currTime = System.currentTimeMillis();
    String message = generateEvent(currTime, delayInMillis);
    PubsubMessage pubsubMessage = new PubsubMessage()
        .encodeData(message.getBytes("UTF-8"));
    pubsubMessage.setAttributes(
        ImmutableMap.of(TIMESTAMP_ATTRIBUTE,
            Long.toString((currTime - delayInMillis) / 1000 * 1000)));
    if (delayInMillis != 0) {
      System.out.println(pubsubMessage.getAttributes());
      System.out.println("late data for: " + message);
    }
    pubsubMessages.add(pubsubMessage);
  }

  PublishRequest publishRequest = new PublishRequest();
  publishRequest.setMessages(pubsubMessages);
  pubsub.projects().topics().publish(topic, publishRequest).execute();
}
 

import com.google.api.services.pubsub.model.PublishRequest; //导入方法依赖的package包/类
/**
 * Publish 'numMessages' arbitrary events from live users with the provided delay, to a
 * PubSub topic.
 */
public static void publishData(int numMessages, int delayInMillis)
    throws IOException {
  List<PubsubMessage> pubsubMessages = new ArrayList<>();

  for (int i = 0; i < Math.max(1, numMessages); i++) {
    Long currTime = System.currentTimeMillis();
    String message = generateEvent(currTime, delayInMillis);
    PubsubMessage pubsubMessage = new PubsubMessage()
            .encodeData(message.getBytes("UTF-8"));
    pubsubMessage.setAttributes(
        ImmutableMap.of(TIMESTAMP_ATTRIBUTE,
            Long.toString((currTime - delayInMillis) / 1000 * 1000)));
    if (delayInMillis != 0) {
      System.out.println(pubsubMessage.getAttributes());
      System.out.println("late data for: " + message);
    }
    pubsubMessages.add(pubsubMessage);
  }

  PublishRequest publishRequest = new PublishRequest();
  publishRequest.setMessages(pubsubMessages);
  pubsub.projects().topics().publish(topic, publishRequest).execute();
}
 

import com.google.api.services.pubsub.model.PublishRequest; //导入方法依赖的package包/类
/**
 * Publishes the given message to the given topic.
 *
 * @param client Cloud Pub/Sub client.
 * @param args Command line arguments.
 * @throws IOException when Cloud Pub/Sub API calls fail.
 */
public static void publishMessage(final Pubsub client, final String[] args)
        throws IOException {
    Main.checkArgsLength(args, 4);
    String topic = PubsubUtils.getFullyQualifiedResourceName(
            PubsubUtils.ResourceType.TOPIC, args[0], args[2]);
    String message = args[3];
    PubsubMessage pubsubMessage = new PubsubMessage()
            .encodeData(message.getBytes("UTF-8"));
    List<PubsubMessage> messages = ImmutableList.of(pubsubMessage);
    PublishRequest publishRequest = new PublishRequest();
    publishRequest.setMessages(messages);
    PublishResponse publishResponse = client.projects().topics()
            .publish(topic, publishRequest)
            .execute();
    List<String> messageIds = publishResponse.getMessageIds();
    if (messageIds != null) {
        for (String messageId : messageIds) {
            System.out.println("Published with a message id: " + messageId);
        }
    }
}
 

import com.google.api.services.pubsub.model.PublishRequest; //导入方法依赖的package包/类
@Override
public final void doPost(final HttpServletRequest req,
                         final HttpServletResponse resp)
        throws IOException {
    Pubsub client = PubsubUtils.getClient();
    String message = req.getParameter("message");
    if (!"".equals(message)) {
        String fullTopicName = String.format("projects/%s/topics/%s",
                PubsubUtils.getProjectId(),
                PubsubUtils.getAppTopicName());
        PubsubMessage pubsubMessage = new PubsubMessage();
        pubsubMessage.encodeData(message.getBytes("UTF-8"));
        PublishRequest publishRequest = new PublishRequest();
        publishRequest.setMessages(ImmutableList.of(pubsubMessage));

        client.projects().topics()
                .publish(fullTopicName, publishRequest)
                .execute();
    }
    resp.setStatus(HttpServletResponse.SC_NO_CONTENT);
    resp.getWriter().close();
}
 

import com.google.api.services.pubsub.model.PublishRequest; //导入方法依赖的package包/类
@Override
public void processElement(ProcessContext c) throws IOException {
  if (c.element().isEmpty()) {
    return;
  }
  PubsubMessage pubsubMessage = new PubsubMessage();
  pubsubMessage.encodeData(c.element().getBytes());
  if (timestampLabelKey != null) {
    pubsubMessage.setAttributes(
        ImmutableMap.of(timestampLabelKey, Long.toString(c.timestamp().getMillis())));
  }
  PublishRequest publishRequest = new PublishRequest();
  publishRequest.setMessages(Arrays.asList(pubsubMessage));
  this.pubsub.projects().topics().publish(outputTopic, publishRequest).execute();
}
 

import com.google.api.services.pubsub.model.PublishRequest; //导入方法依赖的package包/类
/**
 * Connects an IRC channel and publish the chat messages to the given topic.
 *
 * @param client Cloud Pub/Sub client.
 * @param args Command line arguments.
 * @throws IOException when Cloud Pub/Sub API calls fail.
 */
public static void connectIrc(final Pubsub client, final String[] args)
        throws IOException {
    Main.checkArgsLength(args, 5);
    final String server = args[3];
    final String channel = args[4];
    final String topic = PubsubUtils.getFullyQualifiedResourceName(
            PubsubUtils.ResourceType.TOPIC, args[0], args[2]);
    final String nick = String.format("bot-%s", args[0]);
    final Socket socket = new Socket(server, PORT);
    final BufferedWriter writer = new BufferedWriter(
            new OutputStreamWriter(socket.getOutputStream()));
    final BufferedReader reader = new BufferedReader(
            new InputStreamReader(socket.getInputStream()));

    writer.write(String.format("NICK %s\r\n", nick));
    writer.write(String.format("USER %s 8 * : %s\r\n", nick, BOT_NAME));
    writer.flush();

    String line;
    while ((line = reader.readLine()) != null) {
        if (line.contains("004")) {
            System.out.printf("Connected to %s.\n", server);
            break;
        } else if (line.contains("433")) {
            System.err.println("Nickname is already in use.");
            return;
        }
    }

    writer.write(String.format("JOIN %s\r\n", channel));
    writer.flush();

    // A regex pattern for Wikipedia change log as of June 4, 2014
    Pattern pat = Pattern.compile(
            "\\u000314\\[\\[\\u000307(.*)\\u000314\\]\\]\\u0003.*"
                    + "\\u000302(http://[^\\u0003]*)\\u0003");
    while ((line = reader.readLine()) != null) {
        if (line.toLowerCase().startsWith("PING ")) {
            // We must respond to PINGs to avoid being disconnected.
            writer.write("PONG " + line.substring(5) + "\r\n");
            writer.write("PRIVMSG " + channel + " :I got pinged!\r\n");
            writer.flush();
        } else {
            String privmsgMark = "PRIVMSG " + channel + " :";
            int prividx = line.indexOf(privmsgMark);
            if (prividx == -1) {
                continue;
            }
            line = line.substring(prividx + privmsgMark.length(),
                                  line.length());
            PubsubMessage pubsubMessage = new PubsubMessage();
            Matcher matcher = pat.matcher(line);
            if (matcher.find()) {
                String message = String.format("Title: %s, Diff: %s",
                        matcher.group(1), matcher.group(2));
                pubsubMessage.encodeData(message.getBytes("UTF-8"));
            } else {
                pubsubMessage.encodeData(line.getBytes("UTF-8"));
            }
            List<PubsubMessage> messages = ImmutableList.of(pubsubMessage);
            PublishRequest publishRequest = new PublishRequest();
            publishRequest.setMessages(messages);
            client.projects().topics()
                    .publish(topic, publishRequest)
                    .execute();
        }
    }
}