Add support to `set(Map)` on func DSL (experimental)

[mcruzdev]

Problem

Currently the following code does not work as expected:

  @Test
  void set_with_map() {
    Workflow workflow =
        FuncWorkflowBuilder.workflow().tasks(set(Map.of("message", "hello world!"))).build();

    WorkflowApplication app = WorkflowApplication.builder().build();

    WorkflowDefinition workflowDefinition = app.workflowDefinition(workflow);

    WorkflowModel model = workflowDefinition.instance(Map.of()).start().join();

    Optional<String> text = model.asText(); // return "{ }"
  }

The workflow's output returns an empty object ever (not expected).

Using a JQ approach like:

      return WorkflowBuilder.workflow("hello")
                .tasks(t -> t.set("sayHelloWorld", "{ message: \"hello world!\" }"))
                .build();

The result of the worklfow is: { "message": "hello world" } .

I would be great if we have the same behavior with set(Map.of("message", "hello world!") approach.

[fjtirado]

@mcruzdev
I think the test is kind of wrong, you should call model.asMap

This test is working

@Test
 void set_with_map() {
   try (WorkflowApplication app = WorkflowApplication.builder().build()) {
     Workflow workflow =
         new Workflow()
             .withDocument(
                 new Document().withNamespace("test").withName("testSet").withVersion("1.0"))
             .withDo(
                 List.of(
                     new TaskItem(
                         "setTask",
                         new Task()
                             .withSetTask(
                                 new SetTask()
                                     .withSet(
                                         new Set()
                                             .withSetTaskConfiguration(
                                                 new SetTaskConfiguration()
                                                     .withAdditionalProperty(
                                                         "message", "Hello world")))))));

     assertThat(
             app.workflowDefinition(workflow)
                 .instance(new Person("Francisco", 33))
                 .start()
                 .join()
                 .asMap()
                 .orElseThrow())
         .isEqualTo(Map.of("message", "Hello world"));
   }
 }

[fjtirado]

However, this one is failing

 @Test
  void set_with_map() {
	  try (WorkflowApplication app = WorkflowApplication.builder().build()) {
		  Workflow workflow =
				  FuncWorkflowBuilder.workflow().tasks(f -> f.set(s -> s.expr(Map.of("message", "hello world!")))).build();
		  assertThat(app.workflowDefinition(workflow).instance(Map.of()).start().join().asMap().orElseThrow()).isEqualTo(Map.of("message", "hello world!"));
	  }
  }

So basically there is something wrong on the fluent builder