Example usage for org.springframework.statemachine.state State exit

Introduction

In this page you can find the example usage for org.springframework.statemachine.state State exit.

Prototype

Mono<Void> exit(StateContext<S, E> context);

Source Link

Document

Initiate an exit sequence for the state.

Usage

From source file:org.springframework.statemachine.support.AbstractStateMachine.java

private void exitFromState(State<S, E> state, Message<E> message, Transition<S, E> transition,
        StateMachine<S, E> stateMachine, Collection<State<S, E>> sources, Collection<State<S, E>> targets) {
    if (state == null) {
        return;/*from w  ww. j  a v a2  s.  c  om*/
    }
    log.trace("Trying Exit state=[" + state + "]");
    StateContext<S, E> stateContext = buildStateContext(Stage.STATE_EXIT, message, transition, stateMachine);

    if (transition != null) {

        State<S, E> findDeep = findDeepParent(transition.getTarget());
        boolean isTargetSubOfOtherState = findDeep != null && findDeep != currentState;
        boolean isSubOfSource = StateMachineUtils.isSubstate(transition.getSource(), currentState);
        boolean isSubOfTarget = StateMachineUtils.isSubstate(transition.getTarget(), currentState);

        if (transition.getKind() == TransitionKind.LOCAL
                && StateMachineUtils.isSubstate(transition.getSource(), transition.getTarget())
                && transition.getSource() == currentState) {
            return;
        } else if (transition.getKind() == TransitionKind.LOCAL
                && StateMachineUtils.isSubstate(transition.getTarget(), transition.getSource())
                && transition.getTarget() == currentState) {
            return;
        }

        // TODO: this and entry below should be done via a separate
        // voter of some sort which would reveal transition path
        // we could make a choice on.
        if (currentState == transition.getSource() && currentState == transition.getTarget()) {
        } else if (!isSubOfSource && !isSubOfTarget && currentState == transition.getSource()) {
        } else if (!isSubOfSource && !isSubOfTarget && currentState == transition.getTarget()) {
        } else if (isTargetSubOfOtherState) {
        } else if (!isSubOfSource && !isSubOfTarget && findDeep == null) {
        } else if (!isSubOfSource && !isSubOfTarget && (transition.getSource() == currentState
                && StateMachineUtils.isSubstate(currentState, transition.getTarget()))) {
        } else if (StateMachineUtils.isNormalPseudoState(transition.getTarget())) {
            if (isPseudoStateSubstate(findDeep, targets)) {
                return;
            }
        } else if (findDeep != null && findDeep != state && findDeep.getStates().contains(state)) {
        } else if (!isSubOfSource && !isSubOfTarget) {
            return;
        }

    }

    log.debug("Exit state=[" + state + "]");
    state.exit(stateContext);

    notifyStateExited(buildStateContext(Stage.STATE_EXIT, message, null, getRelayStateMachine(), state, null));
}

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