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

org.apache.commons.scxml2.model.SCXML
The class in this SCXML object model that corresponds to the <scxml> root element, and serves as the "document root".

    /**
     * @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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    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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     * @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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     * @param evaluator The evaluator for this state machine instance.
     * @throws ModelException if an attempt is made to set a null value for the evaluator
     */
    protected void setEvaluator(Evaluator evaluator) throws ModelException {
        if (evaluator == null) {
            throw new ModelException(ERR_NO_EVALUATOR);
        }
        if (this.evaluator != null && initialized) {
            this.evaluator = evaluator;
            // change of evaluator after initialization: re-initialize
            initialize();

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     * @param errorReporter The error reporter for this state machine instance.
     * @throws ModelException if an attempt is made to set a null value for the error reporter
     */
    protected void setErrorReporter(ErrorReporter errorReporter) throws ModelException {
        if (errorReporter == null) {
            throw new ModelException(ERR_NO_ERROR_REPORTER);
        }
        this.errorReporter = errorReporter;
    }

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     * @param stateMachine The state machine for this instance
     * @throws ModelException if an attempt is made to set a null value for the state machine
     */
    protected void setStateMachine(SCXML stateMachine) throws ModelException {
        if (stateMachine == null) {
            throw new ModelException(ERR_NO_STATE_MACHINE);
        }
        if (this.stateMachine != null && initialized) {
            this.stateMachine = stateMachine;
            // change of state machine after initialization: re-initialize
            initialize();

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        MessageFormat msgFormat = new MessageFormat(errType);
        String errMsg = msgFormat.format(msgArgs);
        org.apache.commons.logging.Log log = LogFactory.
                getLog(ModelUpdater.class);
        log.error(errMsg);
        throw new ModelException(errMsg);
    }

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    /**
     * {@inheritDoc}.
     */
    public void invoke(final String source, final Map<String, Object> params)
    throws InvokerException {
        SCXML scxml;
        try {
            scxml = SCXMLReader.read(new URL(source));
        } catch (ModelException me) {
            throw new InvokerException(me.getMessage(), me.getCause());
        } catch (IOException ioe) {

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            throws IOException, ModelException, XMLStreamException {


        if (scxmlPath == null) {
            throw new IllegalArgumentException(ERR_NULL_PATH);
        }
        SCXML scxml = readInternal(configuration, null, scxmlPath, null, null, null);
        if (scxml != null) {
            ModelUpdater.updateSCXML(scxml);
        }
        return scxml;
    }

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