Examples with ZeebeClient io.zeebe.client.ZeebeClient used on opensource projects

Example 11 with ZeebeClient

use of io.zeebe.client.ZeebeClient in project zeebe by zeebe-io.

the class TaskSubscriptionTest method shouldReceiveTasksFromMultiplePartitions.

@Test
public void shouldReceiveTasksFromMultiplePartitions() {
    // given
    final String topicName = "gyros";
    final int numPartitions = 2;
    final ZeebeClient client = clientRule.getClient();
    client.topics().create(topicName, numPartitions).execute();
    final Topics topics = client.topics().getTopics().execute();
    final Topic topic = topics.getTopics().stream().filter(t -> t.getName().equals(topicName)).findFirst().get();
    final Integer[] partitionIds = topic.getPartitions().stream().mapToInt(p -> p.getId()).boxed().toArray(Integer[]::new);
    final String taskType = "foooo";
    final RecordingTaskHandler handler = new RecordingTaskHandler();
    createTaskOnPartition(client, topicName, partitionIds[0], taskType);
    createTaskOnPartition(client, topicName, partitionIds[1], taskType);
    // when
    client.tasks().newTaskSubscription(topicName).handler(handler).lockOwner("foo").lockTime(Duration.ofSeconds(30)).taskType(taskType).open();
    // then
    waitUntil(() -> handler.getHandledTasks().size() == 2);
    final Integer[] receivedPartitionIds = handler.getHandledTasks().stream().map(t -> t.getMetadata().getPartitionId()).toArray(Integer[]::new);
    assertThat(receivedPartitionIds).containsExactlyInAnyOrder(partitionIds);
}

Example 12 with ZeebeClient

use of io.zeebe.client.ZeebeClient in project zeebe by zeebe-io.

the class TopologyViewer method main.

public static void main(final String[] args) {
    final String[] brokers = new String[] { "localhost:51015", "localhost:41015", "localhost:31015" };
    for (final String broker : brokers) {
        final Properties clientProperties = new Properties();
        clientProperties.put(ClientProperties.BROKER_CONTACTPOINT, broker);
        try (ZeebeClient zeebeClient = ZeebeClient.create(clientProperties)) {
            final TopologyResponse topology = zeebeClient.requestTopology().execute();
            System.out.println("Requesting topology with initial contact point " + broker);
            System.out.println("  Topology:");
            topology.getBrokers().forEach(b -> {
                System.out.println("    " + b.getSocketAddress());
                b.getPartitions().forEach(p -> System.out.println("      " + p.getTopicName() + "." + p.getPartitionId() + " - " + p.getState()));
            });
        } catch (final Exception e) {
            System.out.println("Broker " + broker + " not available");
        }
    }
}

Example 13 with ZeebeClient

use of io.zeebe.client.ZeebeClient in project zeebe by zeebe-io.

the class WorkflowInstanceStarter method main.

public static void main(String[] args) {
    final String brokerContactPoint = "127.0.0.1:51015";
    final String bpmnProcessId = "demoProcess";
    final String topicName = "default-topic";
    final int partitionId = 0;
    final Properties clientProperties = new Properties();
    clientProperties.put(ClientProperties.BROKER_CONTACTPOINT, brokerContactPoint);
    final ZeebeClient zeebeClient = new ZeebeClientImpl(clientProperties);
    System.out.println(String.format("> Connecting to %s", brokerContactPoint));
    System.out.println(String.format("> Deploying workflow to topic '%s' and partition '%d'", topicName, partitionId));
    final DeploymentEvent deploymentResult = zeebeClient.workflows().deploy(topicName).addResourceFromClasspath("demoProcess.bpmn").execute();
    try {
        final String deployedWorkflows = deploymentResult.getDeployedWorkflows().stream().map(wf -> String.format("<%s:%d>", wf.getBpmnProcessId(), wf.getVersion())).collect(Collectors.joining(","));
        System.out.println(String.format("> Deployed: %s", deployedWorkflows));
        System.out.println(String.format("> Create workflow instance for workflow: %s", bpmnProcessId));
        zeebeClient.workflows().create(topicName).bpmnProcessId(bpmnProcessId).payload("{\"a\": \"b\"}").execute();
        System.out.println("> Created.");
    } catch (ClientCommandRejectedException exception) {
        System.out.println(String.format("> Fail to deploy: %s", exception.getMessage()));
    }
    System.out.println("> Closing...");
    zeebeClient.close();
    System.out.println("> Closed.");
}

Example 14 with ZeebeClient

use of io.zeebe.client.ZeebeClient in project zeebe by zeebe-io.

the class RequestTopicsTest method shouldRequestTopics.

@Test
public void shouldRequestTopics() {
    // given
    final List<Map<String, Object>> partitions = new ArrayList<>();
    partitions.add(buildPartition(1, "foo"));
    partitions.add(buildPartition(2, "foo"));
    partitions.add(buildPartition(3, "bar"));
    brokerRule.onControlMessageRequest(r -> r.messageType() == ControlMessageType.REQUEST_PARTITIONS && r.partitionId() == Protocol.SYSTEM_PARTITION).respondWith().data().put("partitions", partitions).done().register();
    final ZeebeClient client = clientRule.getClient();
    // when
    final Topics result = client.topics().getTopics().execute();
    // then
    final List<Topic> returnedTopics = result.getTopics();
    assertThat(returnedTopics).hasSize(2);
    final Map<String, List<Partition>> topicsByName = returnedTopics.stream().collect(Collectors.toMap(Topic::getName, Topic::getPartitions));
    assertThat(topicsByName.get("foo")).hasSize(2).areExactly(1, matching(1, "foo")).areExactly(1, matching(2, "foo"));
    assertThat(topicsByName.get("bar")).hasSize(1).areExactly(1, matching(3, "bar"));
    final List<ControlMessageRequest> partitionRequests = brokerRule.getReceivedControlMessageRequests().stream().filter(r -> r.messageType() == ControlMessageType.REQUEST_PARTITIONS).collect(Collectors.toList());
    assertThat(partitionRequests).hasSize(1);
    final ControlMessageRequest request = partitionRequests.get(0);
    assertThat(request.partitionId()).isEqualTo(Protocol.SYSTEM_PARTITION);
}

Example 15 with ZeebeClient

use of io.zeebe.client.ZeebeClient in project zeebe by zeebe-io.

the class ClientConfigurationTest method shouldConfigureKeepAlive.

@Test
public void shouldConfigureKeepAlive() {
    // given
    final Properties props = new Properties();
    props.put(ClientProperties.CLIENT_TCP_CHANNEL_KEEP_ALIVE_PERIOD, Long.toString(KEEP_ALIVE_TIMEOUT));
    final Duration expectedTimeout = Duration.ofMillis(KEEP_ALIVE_TIMEOUT);
    // when
    final ZeebeClient client = ZeebeClient.create(props);
    // then
    final ClientTransport transport = ((ZeebeClientImpl) client).getTransport();
    assertThat(transport.getChannelKeepAlivePeriod()).isEqualTo(expectedTimeout);
}