Examples with SyntaxErrorEvent org.kie.dmn.feel.runtime.events.SyntaxErrorEvent used on opensource projects

Example 1 with SyntaxErrorEvent

use of org.kie.dmn.feel.runtime.events.SyntaxErrorEvent in project drools by kiegroup.

the class FEELParser method checkVariableName.

public static List<FEELEvent> checkVariableName(String source) {
    if (source == null || source.isEmpty()) {
        return Collections.singletonList(new SyntaxErrorEvent(FEELEvent.Severity.ERROR, Msg.createMessage(Msg.INVALID_VARIABLE_NAME_EMPTY), null, 0, 0, null));
    }
    ANTLRInputStream input = new ANTLRInputStream(source);
    FEEL_1_1Lexer lexer = new FEEL_1_1Lexer(input);
    CommonTokenStream tokens = new CommonTokenStream(lexer);
    FEEL_1_1Parser parser = new FEEL_1_1Parser(tokens);
    parser.setHelper(new ParserHelper());
    parser.setErrorHandler(new FEELErrorHandler());
    FEELParserErrorListener errorChecker = new FEELParserErrorListener(null);
    // removes the error listener that prints to the console
    parser.removeErrorListeners();
    parser.addErrorListener(errorChecker);
    FEEL_1_1Parser.NameDefinitionContext nameDef = parser.nameDefinition();
    if (!errorChecker.hasErrors() && nameDef != null && source.trim().equals(parser.getHelper().getOriginalText(nameDef))) {
        return Collections.emptyList();
    }
    return errorChecker.getErrors();
}

Example 2 with SyntaxErrorEvent

use of org.kie.dmn.feel.runtime.events.SyntaxErrorEvent in project drools by kiegroup.

the class DMNFEELHelper method processEvents.

public void processEvents(DMNModelImpl model, DMNElement element, Msg.Message msg, Object... msgParams) {
    Queue<FEELEvent> feelEvents = listener.getFeelEvents();
    while (!feelEvents.isEmpty()) {
        FEELEvent event = feelEvents.remove();
        if (!isDuplicateEvent(model, msg, element)) {
            if (event instanceof SyntaxErrorEvent || event.getSeverity() == FEELEvent.Severity.ERROR) {
                if (msg instanceof Msg.Message2) {
                    MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, element, model, null, event, (Msg.Message2) msg, msgParams[0], msgParams[1]);
                } else if (msg instanceof Msg.Message3) {
                    Object message3 = null;
                    if (msgParams.length == 3) {
                        message3 = msgParams[2];
                    } else {
                        // wrap the originating FEEL error as the last message
                        message3 = event.getMessage();
                    }
                    MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, element, model, null, event, (Msg.Message3) msg, msgParams[0], msgParams[1], message3);
                } else if (msg instanceof Msg.Message4) {
                    String message = null;
                    if (event.getOffendingSymbol() == null) {
                        message = "";
                    } else if (event instanceof UnknownVariableErrorEvent) {
                        message = event.getMessage();
                    } else if (event.getOffendingSymbol() instanceof CommonToken) {
                        message = "syntax error near '" + ((CommonToken) event.getOffendingSymbol()).getText() + "'";
                    } else {
                        message = "syntax error near '" + event.getOffendingSymbol() + "'";
                    }
                    MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, element, model, null, event, (Msg.Message4) msg, msgParams[0], msgParams[1], msgParams[2], message);
                }
            }
        }
    }
}