Package org.apache.commons.scxml2.model

Examples of org.apache.commons.scxml2.model.EnterableState

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        Set<EnterableState> parents = new HashSet<EnterableState>();
        for (TransitionTarget tt : tts) {
            boolean hasParallelParent = false;
            for (int i = tt.getNumberOfAncestors()-1; i > -1; i--) {
                EnterableState parent = tt.getAncestor(i);
                if (parent instanceof Parallel) {
                    hasParallelParent = true;
                    // keep on 'reading' as a parallel may have a parent parallel (and even intermediate states)
                }
                else {
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        } else if (errCode == ErrorConstants.ILLEGAL_CONFIG) {
            //isLegalConfig
            if (errCtx instanceof Map.Entry) { //unchecked cast below
                Map.Entry<EnterableState, Set<EnterableState>> badConfigMap =
                    (Map.Entry<EnterableState, Set<EnterableState>>) errCtx;
                EnterableState es = badConfigMap.getKey();
                Set<EnterableState> vals = badConfigMap.getValue();
                msg.append(LogUtils.getTTPath(es) + " : [");
                for (Iterator<EnterableState> i = vals.iterator(); i.hasNext();) {
                    EnterableState ex = i.next();
                    msg.append(LogUtils.getTTPath(ex));
                    if (i.hasNext()) { // reason for iterator usage
                        msg.append(", ");
                    }
                }
                msg.append(']');
            } else if (errCtx instanceof Set) { //unchecked cast below
                Set<EnterableState> vals = (Set<EnterableState>) errCtx;
                msg.append("<SCXML> : [");
                for (Iterator<EnterableState> i = vals.iterator(); i.hasNext();) {
                    EnterableState ex = i.next();
                    msg.append(LogUtils.getTTPath(ex));
                    if (i.hasNext()) {
                        msg.append(", ");
                    }
                }
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    /**
     * @return Returns the single top level final state in which the state machine terminated, or null otherwise
     */
    public Final getFinalState() {
        if (states.size() == 1) {
            EnterableState es = states.iterator().next();
            if (es instanceof Final && es.getParent() == null) {
                return (Final)es;
            }
        }
        return null;
    }
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     *         complex ancestors up to the root.
     */
    public Set<EnterableState> getAllStates() {
        Set<EnterableState> allStates = new HashSet<EnterableState>(states.size() * 2);
        for (EnterableState es : states) {
            EnterableState state = es;
            while (state != null && allStates.add(state)) {
                state = state.getParent();
            }
        }
        return allStates;
    }
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                    addAncestorStatesToEnter(exctx, step, dtt, tt.getParent());
                }
            }
        }
        else { // tt instanceof EnterableState
            EnterableState es = (EnterableState)tt;
            step.getEntrySet().add(es);
            if (es instanceof Parallel) {
                for (EnterableState child : ((Parallel)es).getChildren()) {
                    if (!containsDescendant(step.getEntrySet(), child)) {
                        addDescendantStatesToEnter(exctx, step, child);
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     */
    public void addAncestorStatesToEnter(final SCXMLExecutionContext exctx, final Step step,
                                            final TransitionTarget tt, TransitionTarget ancestor) {
        // for for anc in getProperAncestors(tt,ancestor)
        for (int i = tt.getNumberOfAncestors()-1; i > -1; i--) {
            EnterableState anc = tt.getAncestor(i);
            if (anc == ancestor) {
                break;
            }
            step.getEntrySet().add(anc);
            if (anc instanceof Parallel) {
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         */
        boolean legalConfig = true; // let's be optimists
        Map<EnterableState, Set<EnterableState>> counts = new HashMap<EnterableState, Set<EnterableState>>();
        Set<EnterableState> scxmlCount = new HashSet<EnterableState>();
        for (EnterableState es : states) {
            EnterableState parent;
            while ((parent = es.getParent()) != null) {
                Set<EnterableState> cnt = counts.get(parent);
                if (cnt == null) {
                    cnt = new HashSet<EnterableState>();
                    counts.put(parent, cnt);
                }
                cnt.add(es);
                es = parent;
            }
            //top-level contribution
            scxmlCount.add(es);
        }
        if (scxmlCount.size() > 1) {
            errRep.onError(ErrorConstants.ILLEGAL_CONFIG, "Multiple top-level OR states active!", scxmlCount);
        }
        //Validate child counts:
        for (Map.Entry<EnterableState, Set<EnterableState>> entry : counts.entrySet()) {
            EnterableState es = entry.getKey();
            Set<EnterableState> count = entry.getValue();
            if (es instanceof Parallel) {
                Parallel p = (Parallel) es;
                if (count.size() < p.getChildren().size()) {
                    errRep.onError(ErrorConstants.ILLEGAL_CONFIG, "Not all AND states active for parallel " + p.getId(), entry);
                    legalConfig = false;
                }
            } else {
                if (count.size() > 1) {
                    errRep.onError(ErrorConstants.ILLEGAL_CONFIG, "Multiple OR states active for state " + es.getId(), entry);
                    legalConfig = false;
                }
            }
            count.clear(); //cleanup
        }
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    private static void updateState(final State state, final Map<String, TransitionTarget> targets)
            throws ModelException {
        List<EnterableState> children = state.getChildren();
        if (state.isComposite()) {
            //initialize next / initial
            Initial ini = state.getInitial();
            if (ini == null) {
                state.setFirst(children.get(0).getId());
                ini = state.getInitial();
            }
            SimpleTransition initialTransition = ini.getTransition();
            updateTransition(initialTransition, targets);
            Set<TransitionTarget> initialStates = initialTransition.getTargets();
            // we have to allow for an indirect descendant initial (targets)
            //check that initialState is a descendant of s
            if (initialStates.size() == 0) {
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                writeAV(writer, ATTR_SENDID, c.getSendid());
                writer.writeEndElement();
            } else if (a instanceof Foreach) {
                writeForeach(writer, (Foreach) a);
            } else if (a instanceof Log) {
                Log lg = (Log) a;
                writer.writeStartElement(XMLNS_SCXML, ELEM_LOG);
                writeAV(writer, ATTR_LABEL, lg.getLabel());
                writeAV(writer, ATTR_EXPR, escapeXML(lg.getExpr()));
                writer.writeEndElement();
            } else if (a instanceof Raise) {
                Raise e = (Raise) a;
                writer.writeStartElement(XMLNS_SCXML, ELEM_RAISE);
                writeAV(writer, ATTR_EVENT, e.getEvent());
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     * @throws ModelException if the state machine hasn't been setup for this instance
     */
    protected void initialize() throws ModelException {
        running = false;
        if (stateMachine == null) {
            throw new ModelException(ERR_NO_STATE_MACHINE);
        }
        if (evaluator == null) {
            throw new ModelException(ERR_NO_EVALUATOR);
        }
        if (errorReporter == null) {
            throw new ModelException(ERR_NO_ERROR_REPORTER);
        }
        systemContext = null;
        globalContext = null;
        contexts.clear();
        histories.clear();
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