Example usage for com.amazonaws.services.simpleworkflow.model ActivityType ActivityType

Introduction

In this page you can find the example usage for com.amazonaws.services.simpleworkflow.model ActivityType ActivityType.

Prototype

ActivityType

Source Link

Usage

From source file:aws.example.helloswf.WorkflowWorker.java

License:Apache License

/**
 * The goal of this workflow is to execute at least one HelloActivity successfully.
 *
 * We pass the workflow execution's input to the activity, and we use the activity's result
 * as the output of the workflow./*from w  ww.j  a  va  2 s .co m*/
 */
private static void executeDecisionTask(String taskToken, List<HistoryEvent> events) throws Throwable {
    List<Decision> decisions = new ArrayList<Decision>();
    String workflow_input = null;
    int scheduled_activities = 0;
    int open_activities = 0;
    boolean activity_completed = false;
    String result = null;

    System.out.println("Executing the decision task for the history events: [");
    for (HistoryEvent event : events) {
        System.out.println("  " + event);
        switch (event.getEventType()) {
        case "WorkflowExecutionStarted":
            workflow_input = event.getWorkflowExecutionStartedEventAttributes().getInput();
            break;
        case "ActivityTaskScheduled":
            scheduled_activities++;
            break;
        case "ScheduleActivityTaskFailed":
            scheduled_activities--;
            break;
        case "ActivityTaskStarted":
            scheduled_activities--;
            open_activities++;
            break;
        case "ActivityTaskCompleted":
            open_activities--;
            activity_completed = true;
            result = event.getActivityTaskCompletedEventAttributes().getResult();
            break;
        case "ActivityTaskFailed":
            open_activities--;
            break;
        case "ActivityTaskTimedOut":
            open_activities--;
            break;
        }
    }
    System.out.println("]");

    if (activity_completed) {
        decisions.add(new Decision().withDecisionType(DecisionType.CompleteWorkflowExecution)
                .withCompleteWorkflowExecutionDecisionAttributes(
                        new CompleteWorkflowExecutionDecisionAttributes().withResult(result)));
    } else {
        if (open_activities == 0 && scheduled_activities == 0) {

            ScheduleActivityTaskDecisionAttributes attrs = new ScheduleActivityTaskDecisionAttributes()
                    .withActivityType(new ActivityType().withName(HelloTypes.ACTIVITY)
                            .withVersion(HelloTypes.ACTIVITY_VERSION))
                    .withActivityId(UUID.randomUUID().toString()).withInput(workflow_input);

            decisions.add(new Decision().withDecisionType(DecisionType.ScheduleActivityTask)
                    .withScheduleActivityTaskDecisionAttributes(attrs));
        } else {
            // an instance of HelloActivity is already scheduled or running. Do nothing, another
            // task will be scheduled once the activity completes, fails or times out
        }
    }

    System.out.println("Exiting the decision task with the decisions " + decisions);

    swf.respondDecisionTaskCompleted(
            new RespondDecisionTaskCompletedRequest().withTaskToken(taskToken).withDecisions(decisions));
}

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From source file:org.apache.camel.component.aws.swf.CamelActivityImplementationFactory.java

License:Apache License

@Override
public Iterable<ActivityType> getActivityTypesToRegister() {
    ArrayList<ActivityType> activityTypes = new ArrayList<ActivityType>(1);
    ActivityType activityType = new ActivityType();
    activityType.setName(configuration.getEventName());
    activityType.setVersion(configuration.getVersion());
    activityTypes.add(activityType);//from w  w  w  .  j ava  2s .c o  m
    return activityTypes;
}

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From source file:org.apache.camel.component.aws.swf.CamelSWFActivityClient.java

License:Apache License

public Object scheduleActivity(String eventName, String version, Object input) {
    ActivityType activity = new ActivityType();
    activity.setName(eventName);// ww  w  .  j a va 2s  .  co m
    activity.setVersion(version);

    Promise[] promises = asPromiseArray(input);
    Promise<?> promise = dynamicActivitiesClient.scheduleActivity(activity, promises,
            configuration.getActivitySchedulingOptions(), Object.class, null);
    return promise;
}

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