@Override public void deleteTopic(TopicPath topic) throws IOException { DeleteTopicRequest request = DeleteTopicRequest.newBuilder().setTopic(topic.getPath()).build(); publisherStub().deleteTopic(request); // ignore Empty result. }
@Override public void createTopic(TopicPath topic) throws IOException { Topic request = Topic.newBuilder().setName(topic.getPath()).build(); publisherStub().createTopic(request); // ignore Topic result. }
@Override public int publish(TopicPath topic, List<OutgoingMessage> outgoingMessages) throws IOException { PublishRequest.Builder request = PublishRequest.newBuilder().setTopic(topic.getPath()); for (OutgoingMessage outgoingMessage : outgoingMessages) { PubsubMessage.Builder message = PubsubMessage.newBuilder().setData(ByteString.copyFrom(outgoingMessage.elementBytes)); if (outgoingMessage.attributes != null) { message.putAllAttributes(outgoingMessage.attributes); } if (timestampAttribute != null) { message .getMutableAttributes() .put(timestampAttribute, String.valueOf(outgoingMessage.timestampMsSinceEpoch)); } if (idAttribute != null && !Strings.isNullOrEmpty(outgoingMessage.recordId)) { message.getMutableAttributes().put(idAttribute, outgoingMessage.recordId); } request.addMessages(message); } PublishResponse response = publisherStub().publish(request.build()); return response.getMessageIdsCount(); }
@Override public List<TopicPath> listTopics(ProjectPath project) throws IOException { ListTopicsRequest.Builder request = ListTopicsRequest.newBuilder().setProject(project.getPath()).setPageSize(LIST_BATCH_SIZE); ListTopicsResponse response = publisherStub().listTopics(request.build()); if (response.getTopicsCount() == 0) { return ImmutableList.of(); } List<TopicPath> topics = new ArrayList<>(response.getTopicsCount()); while (true) { for (Topic topic : response.getTopicsList()) { topics.add(topicPathFromPath(topic.getName())); } if (response.getNextPageToken().isEmpty()) { break; } request.setPageToken(response.getNextPageToken()); response = publisherStub().listTopics(request.build()); } return topics; }