private boolean evaluateCheckCondition(Attribute<?, ?> attribute, String condition) {
if (StringUtils.isBlank(condition)) {
return true;
} else {
try {
Record record = attribute.getRecord();
SurveyContext recordContext = record.getSurveyContext();
ExpressionFactory expressionFactory = recordContext.getExpressionFactory();
CheckConditionExpression expression =
expressionFactory.createCheckConditionExpression(condition);
return expression.evaluate(attribute.getParent(), attribute);
} catch (InvalidExpressionException e) {
throw new IdmInterpretationError("Unable to evaluate condition " + condition, e);
}
}
}
/**
* Creates a test survey in which there is a bill with a list of items. For each item there is a
* price, a quantity and a total (calculated using the an expression or a constant).
*
* @return
*/
private Survey createTestSurvey() {
SurveyContext surveyContext = new TestSurveyContext();
Survey survey = surveyContext.createSurvey();
Schema schema = survey.getSchema();
EntityDefinition root = schema.createEntityDefinition();
root.setName("bill");
schema.addRootEntityDefinition(root);
EntityDefinition item = schema.createEntityDefinition();
item.setName("item");
root.addChildDefinition(item);
NumberAttributeDefinition qty = schema.createNumberAttributeDefinition();
qty.setType(Type.INTEGER);
qty.setName("qty");
item.addChildDefinition(qty);
NumberAttributeDefinition price = schema.createNumberAttributeDefinition();
price.setName("price");
item.addChildDefinition(price);
NumberAttributeDefinition total = schema.createNumberAttributeDefinition();
total.setName("total");
total.setCalculated(true);
total.addAttributeDefault(
new AttributeDefault("qty * (price - (price * discount_percent div 100))"));
item.addChildDefinition(total);
NumberAttributeDefinition discountPercent = schema.createNumberAttributeDefinition();
discountPercent.setType(Type.INTEGER);
discountPercent.setName("discount_percent");
discountPercent.setCalculated(true);
discountPercent.addAttributeDefault(new AttributeDefault("30", "qty > 50"));
discountPercent.addAttributeDefault(new AttributeDefault("20", "qty > 20"));
discountPercent.addAttributeDefault(new AttributeDefault("10", "qty > 10"));
discountPercent.addAttributeDefault(new AttributeDefault("0", "true()"));
item.addChildDefinition(discountPercent);
return survey;
}