public boolean matchTransition()

in src/main/java/org/apache/commons/scxml2/semantics/SCXMLSemanticsImpl.java [733:774]
42 lines of code
15 McCabe index (conditional complexity)

    public boolean matchTransition(final SCXMLExecutionContext exctx, final Transition transition, final String eventName) {
        if (eventName != null) {
            if (!(transition.isNoEventsTransition() || transition.isAllEventsTransition())) {
                boolean eventMatch = false;
                for (final String event : transition.getEvents()) {
                    if (eventName.startsWith(event) && (eventName.length() == event.length() || eventName.charAt(event.length())=='.')) {
                        eventMatch = true;
                        break;
                    }
                }
                if (!eventMatch) {
                    return false;
                }
            }
            else if (!transition.isAllEventsTransition()) {
                return false;
            }
        }
        else if (!transition.isNoEventsTransition()) {
            return false;
        }
        if (transition.getCond() != null) {
            Boolean result = Boolean.FALSE;
            final Context context = exctx.getScInstance().getContext(transition.getParent());
            try {
                if ((result = exctx.getEvaluator().evalCond(context, transition.getCond())) == null) {
                    result = Boolean.FALSE;
                    if (exctx.getAppLog().isDebugEnabled()) {
                        exctx.getAppLog().debug("Treating as false because the cond expression was evaluated as null: '"
                                + transition.getCond() + "'");
                    }
                }
            }
            catch (final SCXMLExpressionException e) {
                exctx.getInternalIOProcessor().addEvent(new EventBuilder(TriggerEvent.ERROR_EXECUTION, TriggerEvent.ERROR_EVENT).build());
                exctx.getErrorReporter().onError(ErrorConstants.EXPRESSION_ERROR, "Treating as false due to error: "
                        + e.getMessage(), transition);
            }
            return result;
        }
        return true;
    }