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Example 1 with DefaultDataConverter

use of io.temporal.common.converter.DefaultDataConverter in project samples-java by temporalio.

the class Starter method main.

public static void main(String[] args) {
    WorkflowServiceStubs service = WorkflowServiceStubs.newInstance();
    // Add CloudEventsPayloadConverter
    // It has the same encoding type as JacksonJsonPayloadConverter
    DefaultDataConverter ddc = DefaultDataConverter.newDefaultInstance().withPayloadConverterOverrides(new CloudEventsPayloadConverter());
    WorkflowClientOptions workflowClientOptions = WorkflowClientOptions.newBuilder().setDataConverter(ddc).build();
    WorkflowClient client = WorkflowClient.newInstance(service, workflowClientOptions);
    WorkerFactory factory = WorkerFactory.newInstance(client);
    Worker worker = factory.newWorker(TASK_QUEUE);
    worker.registerWorkflowImplementationTypes(CEWorkflowImpl.class);
    factory.start();
    WorkflowOptions newCustomerWorkflowOptions = WorkflowOptions.newBuilder().setTaskQueue(TASK_QUEUE).build();
    CEWorkflow workflow = client.newWorkflowStub(CEWorkflow.class, newCustomerWorkflowOptions);
    // Create 10 cloud events
    List<CloudEvent> cloudEventList = new ArrayList<>();
    for (int i = 0; i < 10; i++) {
        cloudEventList.add(CloudEventBuilder.v1().withId(String.valueOf(100 + i)).withType("example.demo").withSource(URI.create("http://temporal.io")).withData("application/json", ("{\n" + "\"greeting\": \"hello " + i + "\"\n" + "}").getBytes(Charset.defaultCharset())).build());
    }
    WorkflowClient.start(workflow::exec, cloudEventList.get(0));
    // Send signals (cloud event data)
    for (int j = 1; j < 10; j++) {
        workflow.addEvent(cloudEventList.get(j));
    }
    // Get the CE result and get its data (JSON)
    String result = ((JsonCloudEventData) workflow.getLastEvent().getData()).getNode().get("greeting").asText();
    System.out.println("Last event body: " + result);
    System.exit(0);
}
Also used : ArrayList(java.util.ArrayList) WorkflowClient(io.temporal.client.WorkflowClient) DefaultDataConverter(io.temporal.common.converter.DefaultDataConverter) WorkerFactory(io.temporal.worker.WorkerFactory) JsonCloudEventData(io.cloudevents.jackson.JsonCloudEventData) WorkflowClientOptions(io.temporal.client.WorkflowClientOptions) Worker(io.temporal.worker.Worker) WorkflowOptions(io.temporal.client.WorkflowOptions) CloudEvent(io.cloudevents.CloudEvent) WorkflowServiceStubs(io.temporal.serviceclient.WorkflowServiceStubs)

Aggregations

CloudEvent (io.cloudevents.CloudEvent)1 JsonCloudEventData (io.cloudevents.jackson.JsonCloudEventData)1 WorkflowClient (io.temporal.client.WorkflowClient)1 WorkflowClientOptions (io.temporal.client.WorkflowClientOptions)1 WorkflowOptions (io.temporal.client.WorkflowOptions)1 DefaultDataConverter (io.temporal.common.converter.DefaultDataConverter)1 WorkflowServiceStubs (io.temporal.serviceclient.WorkflowServiceStubs)1 Worker (io.temporal.worker.Worker)1 WorkerFactory (io.temporal.worker.WorkerFactory)1 ArrayList (java.util.ArrayList)1