Example usage for org.springframework.statemachine.transition Transition transit

Introduction

In this page you can find the example usage for org.springframework.statemachine.transition Transition transit.

Prototype

Mono<Boolean> transit(StateContext<S, E> context);

Source Link

Document

Transit this transition with a give state context.

Usage

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

private boolean handleTriggerTrans(List<Transition<S, E>> trans, Message<E> queuedMessage) {
    boolean transit = false;
    for (Transition<S, E> t : trans) {
        if (t == null) {
            continue;
        }/*from  www . j a  v a 2  s . c o m*/
        State<S, E> source = t.getSource();
        if (source == null) {
            continue;
        }
        State<S, E> currentState = stateMachine.getState();
        if (currentState == null) {
            continue;
        }
        if (!StateMachineUtils.containsAtleastOne(source.getIds(), currentState.getIds())) {
            continue;
        }

        // special handling of join
        if (StateMachineUtils.isPseudoState(t.getTarget(), PseudoStateKind.JOIN)) {
            if (joinSyncStates.isEmpty()) {
                List<State<S, E>> joins = ((JoinPseudoState<S, E>) t.getTarget().getPseudoState()).getJoins();
                joinSyncStates.addAll(joins);
            }
            joinSyncTransitions.add(t);
            boolean removed = joinSyncStates.remove(t.getSource());
            boolean joincomplete = removed & joinSyncStates.isEmpty();
            if (joincomplete) {
                for (Transition<S, E> tt : joinSyncTransitions) {
                    StateContext<S, E> stateContext = buildStateContext(queuedMessage, tt, relayStateMachine);
                    tt.transit(stateContext);
                    stateMachineExecutorTransit.transit(tt, stateContext, queuedMessage);
                }
                joinSyncTransitions.clear();
                break;
            } else {
                continue;
            }
        }

        StateContext<S, E> stateContext = buildStateContext(queuedMessage, t, relayStateMachine);
        try {
            stateContext = interceptors.preTransition(stateContext);
        } catch (Exception e) {
            // currently expect that if exception is
            // thrown, this transition will not match.
            // i.e. security may throw AccessDeniedException
            log.info("Interceptors threw exception", e);
            stateContext = null;
        }
        if (stateContext == null) {
            break;
        }

        try {
            transit = t.transit(stateContext);
        } catch (Exception e) {
            log.warn("Transition " + t + " caused error " + e);
        }
        if (transit) {
            stateMachineExecutorTransit.transit(t, stateContext, queuedMessage);
            interceptors.postTransition(stateContext);
            break;
        }
    }
    return transit;
}

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

private void handleInitialTrans(Transition<S, E> tran, Message<E> queuedMessage) {
    StateContext<S, E> stateContext = buildStateContext(queuedMessage, tran, relayStateMachine);
    tran.transit(stateContext);
    stateMachineExecutorTransit.transit(tran, stateContext, queuedMessage);
}

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