private void shutdownPublisher() { try { if (publisher != null) { publisher.shutdown(); } } catch (Exception e) { getLogger().warn("Failed to gracefully shutdown the Google Cloud PubSub Publisher due to {}", new Object[]{e}); } }
/** Example of creating a {@code Publisher}. */ // [TARGET newBuilder(ProjectTopicName)] // [VARIABLE "my_project"] // [VARIABLE "my_topic"] public static void newBuilder(String projectId, String topicId) throws Exception { ProjectTopicName topic = ProjectTopicName.of(projectId, topicId); Publisher publisher = Publisher.newBuilder(topic).build(); try { // ... } finally { // When finished with the publisher, make sure to shutdown to free up resources. publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES); } }
publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES);
if (publisher != null) { publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES);
@Test public void testPublishFailureRetries_maxRetriesSetUnlimited() throws Exception { Publisher publisher = getTestPublisherBuilder() .setExecutorProvider(SINGLE_THREAD_EXECUTOR) .setRetrySettings( Publisher.Builder.DEFAULT_RETRY_SETTINGS .toBuilder() .setTotalTimeout(Duration.ofSeconds(10)) .setMaxAttempts(0) .build()) .build(); testPublisherServiceImpl.addPublishError(new Throwable("Transiently failing")); testPublisherServiceImpl.addPublishError(new Throwable("Transiently failing")); testPublisherServiceImpl.addPublishResponse(PublishResponse.newBuilder().addMessageIds("1")); ApiFuture<String> publishFuture1 = sendTestMessage(publisher, "A"); assertEquals("1", publishFuture1.get()); assertEquals(3, testPublisherServiceImpl.getCapturedRequests().size()); publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES); }
@Test(expected = ExecutionException.class) public void testPublishFailureRetries_retriesDisabled() throws Exception { Publisher publisher = getTestPublisherBuilder() .setExecutorProvider(SINGLE_THREAD_EXECUTOR) .setRetrySettings( Publisher.Builder.DEFAULT_RETRY_SETTINGS .toBuilder() .setTotalTimeout(Duration.ofSeconds(10)) .setMaxAttempts(1) .build()) .build(); testPublisherServiceImpl.addPublishError(new Throwable("Transiently failing")); ApiFuture<String> publishFuture1 = sendTestMessage(publisher, "A"); try { publishFuture1.get(); } finally { assertSame(testPublisherServiceImpl.getCapturedRequests().size(), 1); publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES); } }
@Test public void testPublishFailureRetries_maxRetriesSetup() throws Exception { Publisher publisher = getTestPublisherBuilder() .setExecutorProvider(SINGLE_THREAD_EXECUTOR) .setRetrySettings( Publisher.Builder.DEFAULT_RETRY_SETTINGS .toBuilder() .setTotalTimeout(Duration.ofSeconds(10)) .setMaxAttempts(3) .build()) .build(); testPublisherServiceImpl.addPublishError(new Throwable("Transiently failing")); testPublisherServiceImpl.addPublishError(new Throwable("Transiently failing")); testPublisherServiceImpl.addPublishResponse(PublishResponse.newBuilder().addMessageIds("1")); ApiFuture<String> publishFuture1 = sendTestMessage(publisher, "A"); assertEquals("1", publishFuture1.get()); assertEquals(3, testPublisherServiceImpl.getCapturedRequests().size()); publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES); }
@Test public void testPublishFailureRetries() throws Exception { Publisher publisher = getTestPublisherBuilder() .setExecutorProvider(SINGLE_THREAD_EXECUTOR) .setBatchingSettings( Publisher.Builder.DEFAULT_BATCHING_SETTINGS .toBuilder() .setElementCountThreshold(1L) .setDelayThreshold(Duration.ofSeconds(5)) .build()) .build(); // To demonstrate that reaching duration will trigger publish testPublisherServiceImpl.addPublishError(new Throwable("Transiently failing")); testPublisherServiceImpl.addPublishResponse(PublishResponse.newBuilder().addMessageIds("1")); ApiFuture<String> publishFuture1 = sendTestMessage(publisher, "A"); assertEquals("1", publishFuture1.get()); assertEquals(2, testPublisherServiceImpl.getCapturedRequests().size()); publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES); }
@Test(expected = ExecutionException.class) public void testPublishFailureRetries_nonRetryableFailsImmediately() throws Exception { Publisher publisher = getTestPublisherBuilder() .setExecutorProvider(SINGLE_THREAD_EXECUTOR) .setRetrySettings( Publisher.Builder.DEFAULT_RETRY_SETTINGS .toBuilder() .setTotalTimeout(Duration.ofSeconds(10)) .build()) .setBatchingSettings( Publisher.Builder.DEFAULT_BATCHING_SETTINGS .toBuilder() .setElementCountThreshold(1L) .setDelayThreshold(Duration.ofSeconds(5)) .build()) .build(); // To demonstrate that reaching duration will trigger publish testPublisherServiceImpl.addPublishError(new StatusException(Status.INVALID_ARGUMENT)); ApiFuture<String> publishFuture1 = sendTestMessage(publisher, "A"); try { publishFuture1.get(); } finally { assertTrue(testPublisherServiceImpl.getCapturedRequests().size() >= 1); publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES); } }
.publish(PubsubMessage.newBuilder().setData(ByteString.copyFromUtf8("msg2")).build()) .get(); publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES);
@Test public void testPublishByNumBatchedMessages() throws Exception { Publisher publisher = getTestPublisherBuilder() .setBatchingSettings( Publisher.Builder.DEFAULT_BATCHING_SETTINGS .toBuilder() .setElementCountThreshold(2L) .setDelayThreshold(Duration.ofSeconds(100)) .build()) .build(); testPublisherServiceImpl .addPublishResponse(PublishResponse.newBuilder().addMessageIds("1").addMessageIds("2")) .addPublishResponse(PublishResponse.newBuilder().addMessageIds("3").addMessageIds("4")); ApiFuture<String> publishFuture1 = sendTestMessage(publisher, "A"); ApiFuture<String> publishFuture2 = sendTestMessage(publisher, "B"); ApiFuture<String> publishFuture3 = sendTestMessage(publisher, "C"); // Note we are not advancing time but message should still get published assertEquals("1", publishFuture1.get()); assertEquals("2", publishFuture2.get()); assertFalse(publishFuture3.isDone()); ApiFuture<String> publishFuture4 = publisher.publish(PubsubMessage.newBuilder().setData(ByteString.copyFromUtf8("D")).build()); assertEquals("3", publishFuture3.get()); assertEquals("4", publishFuture4.get()); assertEquals(2, testPublisherServiceImpl.getCapturedRequests().get(0).getMessagesCount()); assertEquals(2, testPublisherServiceImpl.getCapturedRequests().get(1).getMessagesCount()); publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES); }
@Test public void testPublishByDuration() throws Exception { Publisher publisher = getTestPublisherBuilder() // To demonstrate that reaching duration will trigger publish .setBatchingSettings( Publisher.Builder.DEFAULT_BATCHING_SETTINGS .toBuilder() .setDelayThreshold(Duration.ofSeconds(5)) .setElementCountThreshold(10L) .build()) .build(); testPublisherServiceImpl.addPublishResponse( PublishResponse.newBuilder().addMessageIds("1").addMessageIds("2")); ApiFuture<String> publishFuture1 = sendTestMessage(publisher, "A"); ApiFuture<String> publishFuture2 = sendTestMessage(publisher, "B"); assertFalse(publishFuture1.isDone()); assertFalse(publishFuture2.isDone()); fakeExecutor.advanceTime(Duration.ofSeconds(10)); assertEquals("1", publishFuture1.get()); assertEquals("2", publishFuture2.get()); assertEquals(2, testPublisherServiceImpl.getCapturedRequests().get(0).getMessagesCount()); publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES); }
publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES);
@Test public void testSinglePublishByNumBytes() throws Exception { Publisher publisher = getTestPublisherBuilder() .setBatchingSettings( Publisher.Builder.DEFAULT_BATCHING_SETTINGS .toBuilder() .setElementCountThreshold(2L) .setDelayThreshold(Duration.ofSeconds(100)) .build()) .build(); testPublisherServiceImpl .addPublishResponse(PublishResponse.newBuilder().addMessageIds("1").addMessageIds("2")) .addPublishResponse(PublishResponse.newBuilder().addMessageIds("3").addMessageIds("4")); ApiFuture<String> publishFuture1 = sendTestMessage(publisher, "A"); ApiFuture<String> publishFuture2 = sendTestMessage(publisher, "B"); ApiFuture<String> publishFuture3 = sendTestMessage(publisher, "C"); // Note we are not advancing time but message should still get published assertEquals("1", publishFuture1.get()); assertEquals("2", publishFuture2.get()); assertFalse(publishFuture3.isDone()); ApiFuture<String> publishFuture4 = sendTestMessage(publisher, "D"); assertEquals("3", publishFuture3.get()); assertEquals("4", publishFuture4.get()); assertEquals(2, testPublisherServiceImpl.getCapturedRequests().size()); publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES); }
@Test public void testPublisherGetters() throws Exception { Publisher.Builder builder = Publisher.newBuilder(TEST_TOPIC); builder.setChannelProvider(TEST_CHANNEL_PROVIDER); builder.setExecutorProvider(SINGLE_THREAD_EXECUTOR); builder.setBatchingSettings( BatchingSettings.newBuilder() .setRequestByteThreshold(10L) .setDelayThreshold(Duration.ofMillis(11)) .setElementCountThreshold(12L) .build()); builder.setCredentialsProvider(NoCredentialsProvider.create()); Publisher publisher = builder.build(); assertEquals(TEST_TOPIC, publisher.getTopicName()); assertEquals(10, (long) publisher.getBatchingSettings().getRequestByteThreshold()); assertEquals(Duration.ofMillis(11), publisher.getBatchingSettings().getDelayThreshold()); assertEquals(12, (long) publisher.getBatchingSettings().getElementCountThreshold()); publisher.shutdown(); publisher.awaitTermination(1, TimeUnit.MINUTES); }
@Override protected void shutdown() { try { publisher.shutdown(); } catch (Exception e) { throw new RuntimeException(e); } } }
@Override public AsyncFuture<Void> stop() { return async.call(() -> { publisher.shutdown(); return null; }); } }