protected Entity addItem(Entity parentEntity, Integer qtyValue, Double priceValue) {
EntityDefinition rootEntityDefn = parentEntity.getDefinition();
EntityDefinition itemDefn = (EntityDefinition) rootEntityDefn.getChildDefinition("item");
Entity item = (Entity) itemDefn.createNode();
if (qtyValue != null) {
NodeDefinition qtyDefn = itemDefn.getChildDefinition("qty");
IntegerAttribute qty = (IntegerAttribute) qtyDefn.createNode();
qty.setValue(new IntegerValue(qtyValue, null));
item.add(qty);
}
if (priceValue != null) {
NumericAttributeDefinition priceDefn =
(NumericAttributeDefinition) itemDefn.getChildDefinition("price");
RealAttribute price = (RealAttribute) priceDefn.createNode();
price.setValue(new RealValue(priceValue, null));
item.add(price);
}
NumberAttributeDefinition totalDefn =
(NumberAttributeDefinition) itemDefn.getChildDefinition("total");
RealAttribute total = (RealAttribute) totalDefn.createNode();
item.add(total);
NumberAttributeDefinition discountDefn =
(NumberAttributeDefinition) itemDefn.getChildDefinition("discount_percent");
IntegerAttribute discount = (IntegerAttribute) discountDefn.createNode();
item.add(discount);
parentEntity.add(item);
return item;
}
public RealValue parseReal(NumberAttributeDefinition attrDef, String value) {
Map<String, Object> map = parseJSONToMap(value, RealValue.VALUE_FIELD);
if (map == null) {
return null;
}
Integer unitId = getInteger(map, RealValue.UNIT_ID_FIELD);
Unit unit = attrDef.getActualUnit(unitId);
return new RealValue(getDouble(map, RealValue.VALUE_FIELD), unit);
}
/**
* 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;
}