/**
* Parses a rule template attribute
*
* @param element the attribute XML element
* @param ruleTemplate the ruleTemplate to update
* @return a parsed rule template attribute
* @throws XmlException if the attribute does not exist
*/
private RuleTemplateAttributeBo parseRuleTemplateAttribute(
Element element, RuleTemplateBo ruleTemplate) throws XmlException {
String attributeName = element.getChildText(NAME, RULE_TEMPLATE_NAMESPACE);
String requiredValue = element.getChildText(REQUIRED, RULE_TEMPLATE_NAMESPACE);
String activeValue = element.getChildText(ACTIVE, RULE_TEMPLATE_NAMESPACE);
if (org.apache.commons.lang.StringUtils.isEmpty(attributeName)) {
throw new XmlException("Attribute name must be non-empty");
}
boolean required = DEFAULT_ATTRIBUTE_REQUIRED;
if (requiredValue != null) {
required = Boolean.parseBoolean(requiredValue);
}
boolean active = DEFAULT_ATTRIBUTE_ACTIVE;
if (activeValue != null) {
active = Boolean.parseBoolean(activeValue);
}
RuleAttribute ruleAttribute =
KEWServiceLocator.getRuleAttributeService().findByName(attributeName);
if (ruleAttribute == null) {
throw new XmlException("Could not locate rule attribute for name '" + attributeName + "'");
}
RuleTemplateAttributeBo templateAttribute = new RuleTemplateAttributeBo();
templateAttribute.setRuleAttribute(ruleAttribute);
templateAttribute.setRuleAttributeId(ruleAttribute.getId());
templateAttribute.setRuleTemplate(ruleTemplate);
templateAttribute.setRequired(Boolean.valueOf(required));
templateAttribute.setActive(Boolean.valueOf(active));
templateAttribute.setDisplayOrder(new Integer(templateAttributeCounter++));
return templateAttribute;
}
/**
* Updates the attributes set on the RuleTemplate
*
* @param ruleTemplateElement the XML ruleTemplate element
* @param updatedRuleTemplate the RuleTemplate being updated
* @throws XmlException if there was a problem parsing the rule template attributes
*/
protected void updateRuleTemplateAttributes(
Element ruleTemplateElement, RuleTemplateBo updatedRuleTemplate) throws XmlException {
// add any newly defined rule template attributes to the rule template,
// update the active and required flags of any existing ones.
// if this is an update of an existing rule template, related attribute objects will be present
// in this rule template object,
// otherwise none will be present (so they'll all be new)
Element attributesElement = ruleTemplateElement.getChild(ATTRIBUTES, RULE_TEMPLATE_NAMESPACE);
List<RuleTemplateAttributeBo> incomingAttributes = new ArrayList<RuleTemplateAttributeBo>();
if (attributesElement != null) {
incomingAttributes.addAll(
parseRuleTemplateAttributes(attributesElement, updatedRuleTemplate));
}
// inactivate all current attributes
for (RuleTemplateAttributeBo currentRuleTemplateAttribute :
updatedRuleTemplate.getRuleTemplateAttributes()) {
String ruleAttributeName =
(currentRuleTemplateAttribute.getRuleAttribute() != null)
? currentRuleTemplateAttribute.getRuleAttribute().getName()
: "(null)";
LOG.debug(
"Inactivating rule template attribute with id "
+ currentRuleTemplateAttribute.getId()
+ " and rule attribute with name "
+ ruleAttributeName);
currentRuleTemplateAttribute.setActive(Boolean.FALSE);
}
// NOTE: attributes are deactivated, not removed
// add/update any new attributes
for (RuleTemplateAttributeBo ruleTemplateAttribute : incomingAttributes) {
RuleTemplateAttributeBo potentialExistingTemplateAttribute =
updatedRuleTemplate.getRuleTemplateAttribute(ruleTemplateAttribute);
if (potentialExistingTemplateAttribute != null) {
// template attribute exists on rule template already; update the options
potentialExistingTemplateAttribute.setActive(ruleTemplateAttribute.getActive());
potentialExistingTemplateAttribute.setRequired(ruleTemplateAttribute.getRequired());
} else {
// template attribute does not yet exist on template so add it
ruleTemplateAttribute.setRuleTemplate(updatedRuleTemplate);
updatedRuleTemplate.getRuleTemplateAttributes().add(ruleTemplateAttribute);
}
}
}