Examples with ExpressionEvaluator org.drools.scenariosimulation.backend.expression.ExpressionEvaluator used on opensource projects

Example 6 with ExpressionEvaluator

use of org.drools.scenariosimulation.backend.expression.ExpressionEvaluator in project drools by kiegroup.

the class AbstractRunnerHelper method getParamsForBean.

protected Map<List<String>, Object> getParamsForBean(ScesimModelDescriptor scesimModelDescriptor, FactIdentifier factIdentifier, List<FactMappingValue> factMappingValues, ExpressionEvaluatorFactory expressionEvaluatorFactory) {
    Map<List<String>, Object> paramsForBean = new HashMap<>();
    boolean hasError = false;
    for (FactMappingValue factMappingValue : factMappingValues) {
        ExpressionIdentifier expressionIdentifier = factMappingValue.getExpressionIdentifier();
        FactMapping factMapping = scesimModelDescriptor.getFactMapping(factIdentifier, expressionIdentifier).orElseThrow(() -> new IllegalStateException("Wrong expression, this should not happen"));
        List<String> pathToField = factMapping.getExpressionElementsWithoutClass().stream().map(ExpressionElement::getStep).collect(toList());
        ExpressionEvaluator expressionEvaluator = expressionEvaluatorFactory.getOrCreate(factMappingValue);
        try {
            Object value = expressionEvaluator.evaluateLiteralExpression((String) factMappingValue.getRawValue(), factMapping.getClassName(), factMapping.getGenericTypes());
            paramsForBean.put(pathToField, value);
        } catch (RuntimeException e) {
            factMappingValue.setExceptionMessage(e.getMessage());
            hasError = true;
        }
    }
    if (hasError) {
        throw new ScenarioException("Error in one or more input values");
    }
    return paramsForBean;
}