Examples of org.springframework.webflow.engine.State

Package org.springframework.webflow.engine

Examples of org.springframework.webflow.engine.State

org.springframework.webflow.engine.State
A point in a flow where something happens. What happens is determined by a state's type. Standard types of states include action states, view states, subflow states, and end states.
Each state is associated with exactly one owning flow definition. Specializations of this class capture all the configuration information needed for a specific kind of state.
Subclasses should implement the doEnter method to execute the processing that should occur when this state is entered, acting on its configuration information. The ability to plug-in custom state types that execute different behaviors is the classic GoF state pattern.
Equality: Two states are equal if they have the same id and are part of the same flow. @see org.springframework.webflow.engine.TransitionableState @see org.springframework.webflow.engine.ActionState @see org.springframework.webflow.engine.ViewState @see org.springframework.webflow.engine.SubflowState @see org.springframework.webflow.engine.EndState @see org.springframework.webflow.engine.DecisionState @author Keith Donald @author Erwin Vervaet

    }
  }


  private State getCurrentState() {
    FlowSessionImpl session = getActiveSessionInternal();
    State currentState = (State) session.getState();
    return currentState;
  }

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  /**
   * Creates a new mock flow session that sets a flow with id "mockFlow" as the 'active flow' in state "mockState".
   */
  public MockFlowSession() {
    setDefinition(new Flow("mockFlow"));
    State state = new TransitionableState(definition, "mockState") {
      protected void doEnter(RequestControlContext context) throws FlowExecutionException {
        // nothing to do
      }
    };
    setState(state);

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  }


  public void testStateExceptionHandlingExceptionInEndState() {
    FlowBuilder builder = new AbstractFlowBuilder() {
      public void buildStates() throws FlowBuilderException {
        State state = new EndState(getFlow(), "end");
        state.getEntryActionList().add(new AbstractAction() {
          protected Event doExecute(RequestContext context) throws Exception {
            throw new NullPointerException("failing");
          }
        });
        new TransitionableState(getFlow(), "showError") {

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    execution.start(null, new MockExternalContext());
    assertTrue(starting);
  }


  public void testCreateWithExecutionKeyFactory() {
    State state = new State(flowDefinition, "state") {
      protected void doEnter(RequestControlContext context) throws FlowExecutionException {
        context.assignFlowExecutionKey();
        context.updateCurrentFlowExecutionSnapshot();
        context.removeCurrentFlowExecutionSnapshot();
        context.removeAllFlowExecutionSnapshots();

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    assertNotNull(execution.getFlashScope().get("messagesMemento"));
  }


  public void testStartAndPause() {
    Flow flow = new Flow("flow");
    new State(flow, "state") {
      protected void doEnter(RequestControlContext context) throws FlowExecutionException {
        // no op
      }
    };
    MockFlowExecutionListener mockListener = new MockFlowExecutionListener();

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    assertEquals(1, mockListener.getPausedCount());
  }


  public void testStartWithNullInputMap() {
    Flow flow = new Flow("flow");
    new State(flow, "state") {
      protected void doEnter(RequestControlContext context) throws FlowExecutionException {
        // no op
      }
    };
    MockFlowExecutionListener mockListener = new MockFlowExecutionListener() {

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    }
  }


  public void testStartExceptionThrownByState() {
    Flow flow = new Flow("flow");
    State state = new State(flow, "state") {
      protected void doEnter(RequestControlContext context) throws FlowExecutionException {
        throw new IllegalStateException("Oops");
      }
    };
    FlowExecutionImpl execution = new FlowExecutionImpl(flow);
    MockExternalContext context = new MockExternalContext();
    assertFalse(execution.hasStarted());
    try {
      execution.start(null, context);
      fail("Should have failed");
    } catch (FlowExecutionException e) {
      assertEquals(flow.getId(), e.getFlowId());
      assertEquals(state.getId(), e.getStateId());
    }
  }

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  }


  public void testStartFlowExecutionExceptionThrownByState() {
    Flow flow = new Flow("flow");
    final FlowExecutionException e = new FlowExecutionException("flow", "state", "Oops");
    new State(flow, "state") {
      protected void doEnter(RequestControlContext context) throws FlowExecutionException {
        throw e;
      }
    };
    FlowExecutionImpl execution = new FlowExecutionImpl(flow);

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  public void testStartExceptionThrownByStateHandledByFlowExceptionHandler() {
    Flow flow = new Flow("flow");
    StubFlowExecutionExceptionHandler exceptionHandler = new StubFlowExecutionExceptionHandler();
    flow.getExceptionHandlerSet().add(exceptionHandler);
    final FlowExecutionException e = new FlowExecutionException("flow", "state", "Oops");
    new State(flow, "state") {
      protected void doEnter(RequestControlContext context) throws FlowExecutionException {
        throw e;
      }
    };
    FlowExecutionImpl execution = new FlowExecutionImpl(flow);

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  public void testStartExceptionThrownByStateHandledByStateExceptionHandler() {
    Flow flow = new Flow("flow");
    flow.getExceptionHandlerSet().add(new StubFlowExecutionExceptionHandler());
    final FlowExecutionException e = new FlowExecutionException("flow", "state", "Oops");
    State s = new State(flow, "state") {
      protected void doEnter(RequestControlContext context) throws FlowExecutionException {
        throw e;
      }
    };
    StubFlowExecutionExceptionHandler exceptionHandler = new StubFlowExecutionExceptionHandler();
    s.getExceptionHandlerSet().add(exceptionHandler);
    FlowExecutionImpl execution = new FlowExecutionImpl(flow);
    MockExternalContext context = new MockExternalContext();
    assertFalse(execution.hasStarted());
    execution.start(null, context);
    assertTrue(exceptionHandler.getHandled());

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