WorkflowExecutor { @VisibleForTesting List<Task> dedupAndAddTasks(Workflow workflow, List<Task> tasks) { List<String> tasksInWorkflow = workflow.getTasks().stream() .map(task -> task.getReferenceTaskName() + "_" + task.getRetryCount()) .collect(Collectors.toList()); List<Task> dedupedTasks = tasks.stream() .filter(task -> !tasksInWorkflow.contains(task.getReferenceTaskName() + "_" + task.getRetryCount())) .collect(Collectors.toList()); workflow.getTasks().addAll(dedupedTasks); return dedupedTasks; } @Inject  WorkflowExecutor(
        DeciderService deciderService,
        MetadataDAO metadataDAO,
        QueueDAO queueDAO,
        MetadataMapperService metadataMapperService,
        WorkflowStatusListener workflowStatusListener,
        ExecutionDAOFacade executionDAOFacade,
        Configuration config,
        ExecutionLockService executionLockService,
        ParametersUtils parametersUtils
    ); String startWorkflow(String name, Integer version, String correlationId, Map<String, Object> input, String externalInputPayloadStoragePath); String startWorkflow(String name, Integer version, String correlationId, Integer priority, Map<String, Object> input, String externalInputPayloadStoragePath); String startWorkflow(String name, Integer version, String correlationId, Map<String, Object> input, String externalInputPayloadStoragePath, String event); String startWorkflow(String name, Integer version, String correlationId, Integer priority, Map<String, Object> input, String externalInputPayloadStoragePath, String event); String startWorkflow(
            String name,
            Integer version,
            String correlationId,
            Map<String, Object> input,
            String externalInputPayloadStoragePath,
            String event,
            Map<String, String> taskToDomain
    ); String startWorkflow(
            String name,
            Integer version,
            String correlationId,
            Integer priority,
            Map<String, Object> input,
            String externalInputPayloadStoragePath,
            String event,
            Map<String, String> taskToDomain
    ); String startWorkflow(
            String name,
            Integer version,
            Map<String, Object> input,
            String externalInputPayloadStoragePath,
            String correlationId,
            String parentWorkflowId,
            String parentWorkflowTaskId,
            String event
    ); String startWorkflow(
            WorkflowDef workflowDefinition,
            Map<String, Object> workflowInput,
            String externalInputPayloadStoragePath,
            String correlationId,
            String event,
            Map<String, String> taskToDomain
    ); String startWorkflow(
            WorkflowDef workflowDefinition,
            Map<String, Object> workflowInput,
            String externalInputPayloadStoragePath,
            String correlationId,
            Integer priority,
            String event,
            Map<String, String> taskToDomain
    ); String startWorkflow(
            String name,
            Integer version,
            Map<String, Object> workflowInput,
            String externalInputPayloadStoragePath,
            String correlationId,
            String parentWorkflowId,
            String parentWorkflowTaskId,
            String event,
            Map<String, String> taskToDomain
    ); String startWorkflow(
            String name,
            Integer version,
            Map<String, Object> workflowInput,
            String externalInputPayloadStoragePath,
            String correlationId,
            Integer priority,
            String parentWorkflowId,
            String parentWorkflowTaskId,
            String event,
            Map<String, String> taskToDomain
    ); String startWorkflow(
            WorkflowDef workflowDefinition,
            Map<String, Object> workflowInput,
            String externalInputPayloadStoragePath,
            String correlationId,
            Integer priority,
            String parentWorkflowId,
            String parentWorkflowTaskId,
            String event,
            Map<String, String> taskToDomain
    ); void resetCallbacksForWorkflow(String workflowId); String rerun(RerunWorkflowRequest request); void rewind(String workflowId, boolean useLatestDefinitions); void retry(String workflowId); Task getPendingTaskByWorkflow(String taskReferenceName, String workflowId); void terminateWorkflow(String workflowId, String reason); void terminateWorkflow(Workflow workflow, String reason, String failureWorkflow); void updateTask(TaskResult taskResult); Task getTask(String taskId); List<Task> getTasks(String taskType, String startKey, int count); List<Workflow> getRunningWorkflows(String workflowName, int version); List<String> getWorkflows(String name, Integer version, Long startTime, Long endTime); List<String> getRunningWorkflowIds(String workflowName, int version); boolean decide(String workflowId); void pauseWorkflow(String workflowId); void resumeWorkflow(String workflowId); void skipTaskFromWorkflow(String workflowId, String taskReferenceName, SkipTaskRequest skipTaskRequest); Workflow getWorkflow(String workflowId, boolean includeTasks); void addTaskToQueue(Task task); void executeSystemTask(WorkflowSystemTask systemTask, String taskId, int callbackTime); void scheduleNextIteration(Task loopTask, Workflow workflow); TaskDef getTaskDefinition(Task task); static final String DECIDER_QUEUE; }
@Test public void testDedupAndAddTasks() { Workflow workflow = new Workflow(); Task task1 = new Task(); task1.setReferenceTaskName("task1"); task1.setRetryCount(1); Task task2 = new Task(); task2.setReferenceTaskName("task2"); task2.setRetryCount(2); List<Task> tasks = new ArrayList<>(Arrays.asList(task1, task2)); List<Task> taskList = workflowExecutor.dedupAndAddTasks(workflow, tasks); assertEquals(2, taskList.size()); assertEquals(tasks, taskList); assertEquals(workflow.getTasks(), taskList); taskList = workflowExecutor.dedupAndAddTasks(workflow, tasks); assertEquals(0, taskList.size()); assertEquals(workflow.getTasks(), tasks); Task newTask = new Task(); newTask.setReferenceTaskName("newTask"); newTask.setRetryCount(0); taskList = workflowExecutor.dedupAndAddTasks(workflow, Collections.singletonList(newTask)); assertEquals(1, taskList.size()); assertEquals(newTask, taskList.get(0)); assertEquals(3, workflow.getTasks().size()); }