How to use

getTasksToBeScheduled

method

in

com.netflix.conductor.core.execution.DeciderService

public List<Task> getTasksToBeScheduled(Workflow workflow,
                    WorkflowTask taskToSchedule, int retryCount) {
  return getTasksToBeScheduled(workflow, taskToSchedule, retryCount, null);
}

@VisibleForTesting
List<Task> getNextTask(Workflow workflow, Task task) {
  final WorkflowDef workflowDef = workflow.getWorkflowDefinition();
  // Get the following task after the last completed task
  if (SystemTaskType.is(task.getTaskType()) && SystemTaskType.DECISION.name().equals(task.getTaskType())) {
    if (task.getInputData().get("hasChildren") != null) {
      return Collections.emptyList();
    }
  }
  String taskReferenceName = task.getReferenceTaskName();
  WorkflowTask taskToSchedule = workflowDef.getNextTask(taskReferenceName);
  while (isTaskSkipped(taskToSchedule, workflow)) {
    taskToSchedule = workflowDef.getNextTask(taskToSchedule.getTaskReferenceName());
  }
  if (taskToSchedule != null) {
    return getTasksToBeScheduled(workflow, taskToSchedule, 0);
  }
  return Collections.emptyList();
}

List<Task> forkedTasks = taskMapperContext.getDeciderService().getTasksToBeScheduled(workflowInstance, wft, retryCount);
for (Task forkedTask : forkedTasks) {
  Map<String, Object> forkedTaskInput = tasksInput.get(forkedTask.getReferenceTaskName());

return getTasksToBeScheduled(workflow, taskToSchedule, 0);

WorkflowTask selectedTask = selectedTasks.get(0);        //Schedule the first task to be executed...
List<Task> caseTasks = taskMapperContext.getDeciderService().getTasksToBeScheduled(workflowInstance, selectedTask, retryCount, taskMapperContext.getRetryTaskId());
tasksToBeScheduled.addAll(caseTasks);
decisionTask.getInputData().put("hasChildren", "true");

WorkflowTask wft = wfts.get(0);
List<Task> tasks2 = taskMapperContext.getDeciderService()
    .getTasksToBeScheduled(workflowInstance, wft, retryCount);
tasksToBeScheduled.addAll(tasks2);

simpleTask2.setReferenceTaskName("xdt2");
when(deciderService.getTasksToBeScheduled(workflowInstance, wt2, 0 )).thenReturn(Arrays.asList(simpleTask1));
when(deciderService.getTasksToBeScheduled(workflowInstance, wt3, 0 )).thenReturn(Arrays.asList(simpleTask2));

simpleTask2.setReferenceTaskName("xdt2");
when(deciderService.getTasksToBeScheduled(workflowInstance, wt2, 0 )).thenReturn(Arrays.asList(simpleTask1));
when(deciderService.getTasksToBeScheduled(workflowInstance, wt3, 0 )).thenReturn(Arrays.asList(simpleTask2));

theTask.setTaskId(IDGenerator.generate());
when(deciderService.getTasksToBeScheduled(workflowInstance, task2, 0, null))
    .thenReturn(Arrays.asList(theTask));

task3.setReferenceTaskName(wft3.getTaskReferenceName());
Mockito.when(deciderService.getTasksToBeScheduled(workflow, wft1,0)).thenReturn(Arrays.asList(task1));
Mockito.when(deciderService.getTasksToBeScheduled(workflow, wft2,0)).thenReturn(Arrays.asList(task3));

@Test
public void testGetTasksToBeScheduled() {
  WorkflowDef workflowDef = createLinearWorkflow();
  Workflow workflow = new Workflow();
  workflow.setWorkflowDefinition(workflowDef);
  workflow.setStatus(WorkflowStatus.RUNNING);
  WorkflowTask workflowTask1 = new WorkflowTask();
  workflowTask1.setName("s1");
  workflowTask1.setTaskReferenceName("s1");
  workflowTask1.setType(TaskType.SIMPLE.name());
  workflowTask1.setTaskDefinition(new TaskDef("s1"));
  List<Task> tasksToBeScheduled = deciderService.getTasksToBeScheduled(workflow, workflowTask1, 0, null);
  assertNotNull(tasksToBeScheduled);
  assertEquals(1, tasksToBeScheduled.size());
  assertEquals("s1", tasksToBeScheduled.get(0).getReferenceTaskName());
  WorkflowTask workflowTask2 = new WorkflowTask();
  workflowTask2.setName("s2");
  workflowTask2.setTaskReferenceName("s2");
  workflowTask2.setType(TaskType.SIMPLE.name());
  workflowTask2.setTaskDefinition(new TaskDef("s2"));
  tasksToBeScheduled = deciderService.getTasksToBeScheduled(workflow, workflowTask2, 0, null);
  assertNotNull(tasksToBeScheduled);
  assertEquals(1, tasksToBeScheduled.size());
  assertEquals("s2", tasksToBeScheduled.get(0).getReferenceTaskName());
}

task3.setReferenceTaskName(wft3.getTaskReferenceName());
Mockito.when(deciderService.getTasksToBeScheduled(workflow, wft1,0)).thenReturn(Arrays.asList(task1));
Mockito.when(deciderService.getTasksToBeScheduled(workflow, wft2,0)).thenReturn(Arrays.asList(task3));

public List<Task> getTasksToBeScheduled(Workflow workflow,
                    WorkflowTask taskToSchedule, int retryCount) {
  return getTasksToBeScheduled(workflow, taskToSchedule, retryCount, null);
}

@VisibleForTesting
List<Task> getNextTask(Workflow workflow, Task task) {
  final WorkflowDef workflowDef = workflow.getWorkflowDefinition();
  // Get the following task after the last completed task
  if (SystemTaskType.is(task.getTaskType()) && SystemTaskType.DECISION.name().equals(task.getTaskType())) {
    if (task.getInputData().get("hasChildren") != null) {
      return Collections.emptyList();
    }
  }
  String taskReferenceName = task.getReferenceTaskName();
  WorkflowTask taskToSchedule = workflowDef.getNextTask(taskReferenceName);
  while (isTaskSkipped(taskToSchedule, workflow)) {
    taskToSchedule = workflowDef.getNextTask(taskToSchedule.getTaskReferenceName());
  }
  if (taskToSchedule != null) {
    return getTasksToBeScheduled(workflow, taskToSchedule, 0);
  }
  return Collections.emptyList();
}

List<Task> forkedTasks = taskMapperContext.getDeciderService().getTasksToBeScheduled(workflowInstance, wft, retryCount);
for (Task forkedTask : forkedTasks) {
  Map<String, Object> forkedTaskInput = tasksInput.get(forkedTask.getReferenceTaskName());

return getTasksToBeScheduled(workflow, taskToSchedule, 0);

WorkflowTask selectedTask = selectedTasks.get(0);        //Schedule the first task to be executed...
List<Task> caseTasks = taskMapperContext.getDeciderService().getTasksToBeScheduled(workflowInstance, selectedTask, retryCount, taskMapperContext.getRetryTaskId());
tasksToBeScheduled.addAll(caseTasks);
decisionTask.getInputData().put("hasChildren", "true");

WorkflowTask wft = wfts.get(0);
List<Task> tasks2 = taskMapperContext.getDeciderService()
    .getTasksToBeScheduled(workflowInstance, wft, retryCount);
tasksToBeScheduled.addAll(tasks2);