protected void init(Element root) {
NodeList children = root.getChildNodes();
for (int i = 0; i < children.getLength(); i++) {
Node child = children.item(i);
if (child.getNodeName().equals("meta")) {
Element meta = (Element) child;
String value = XMLUtil.getText(meta);
this.metaAttributes.put(meta.getAttribute("name"), value);
}
}
// handle registers - OPTIONAL
Element r = XMLUtil.getChildElement(root, "registers");
if (r != null) {
List registers = XMLUtil.getChildElements(r, "register");
for (int i = 0; i < registers.size(); i++) {
Element register = (Element) registers.get(i);
RegisterDescriptor registerDescriptor =
DescriptorFactory.getFactory().createRegisterDescriptor(register);
registerDescriptor.setParent(this);
this.registers.add(registerDescriptor);
}
}
// handle global-conditions - OPTIONAL
Element globalConditionsElement = XMLUtil.getChildElement(root, "global-conditions");
if (globalConditionsElement != null) {
Element globalConditions = XMLUtil.getChildElement(globalConditionsElement, "conditions");
ConditionsDescriptor conditionsDescriptor =
DescriptorFactory.getFactory().createConditionsDescriptor(globalConditions);
conditionsDescriptor.setParent(this);
this.globalConditions = conditionsDescriptor;
}
// handle initial-steps - REQUIRED
Element intialActionsElement = XMLUtil.getChildElement(root, "initial-actions");
List initialActions = XMLUtil.getChildElements(intialActionsElement, "action");
for (int i = 0; i < initialActions.size(); i++) {
Element initialAction = (Element) initialActions.get(i);
ActionDescriptor actionDescriptor =
DescriptorFactory.getFactory().createActionDescriptor(initialAction);
actionDescriptor.setParent(this);
this.initialActions.add(actionDescriptor);
}
// handle global-actions - OPTIONAL
Element globalActionsElement = XMLUtil.getChildElement(root, "global-actions");
if (globalActionsElement != null) {
List globalActions = XMLUtil.getChildElements(globalActionsElement, "action");
for (int i = 0; i < globalActions.size(); i++) {
Element globalAction = (Element) globalActions.get(i);
ActionDescriptor actionDescriptor =
DescriptorFactory.getFactory().createActionDescriptor(globalAction);
actionDescriptor.setParent(this);
this.globalActions.add(actionDescriptor);
}
}
// handle common-actions - OPTIONAL
// - Store actions in HashMap for now. When parsing Steps, we'll resolve
// any common actions into local references.
Element commonActionsElement = XMLUtil.getChildElement(root, "common-actions");
if (commonActionsElement != null) {
List commonActions = XMLUtil.getChildElements(commonActionsElement, "action");
for (int i = 0; i < commonActions.size(); i++) {
Element commonAction = (Element) commonActions.get(i);
ActionDescriptor actionDescriptor =
DescriptorFactory.getFactory().createActionDescriptor(commonAction);
actionDescriptor.setParent(this);
addCommonAction(actionDescriptor);
}
}
// handle timer-functions - OPTIONAL
Element timerFunctionsElement = XMLUtil.getChildElement(root, "trigger-functions");
if (timerFunctionsElement != null) {
List timerFunctions = XMLUtil.getChildElements(timerFunctionsElement, "trigger-function");
for (int i = 0; i < timerFunctions.size(); i++) {
Element timerFunction = (Element) timerFunctions.get(i);
Integer id = new Integer(timerFunction.getAttribute("id"));
FunctionDescriptor function =
DescriptorFactory.getFactory()
.createFunctionDescriptor(XMLUtil.getChildElement(timerFunction, "function"));
function.setParent(this);
this.timerFunctions.put(id, function);
}
}
// handle steps - REQUIRED
Element stepsElement = XMLUtil.getChildElement(root, "steps");
List steps = XMLUtil.getChildElements(stepsElement, "step");
for (int i = 0; i < steps.size(); i++) {
Element step = (Element) steps.get(i);
StepDescriptor stepDescriptor =
DescriptorFactory.getFactory().createStepDescriptor(step, this);
this.steps.add(stepDescriptor);
}
// handle splits - OPTIONAL
Element splitsElement = XMLUtil.getChildElement(root, "splits");
if (splitsElement != null) {
List split = XMLUtil.getChildElements(splitsElement, "split");
for (int i = 0; i < split.size(); i++) {
Element s = (Element) split.get(i);
SplitDescriptor splitDescriptor = DescriptorFactory.getFactory().createSplitDescriptor(s);
splitDescriptor.setParent(this);
this.splits.add(splitDescriptor);
}
}
// handle joins - OPTIONAL:
Element joinsElement = XMLUtil.getChildElement(root, "joins");
if (joinsElement != null) {
List join = XMLUtil.getChildElements(joinsElement, "join");
for (int i = 0; i < join.size(); i++) {
Element s = (Element) join.get(i);
JoinDescriptor joinDescriptor = DescriptorFactory.getFactory().createJoinDescriptor(s);
joinDescriptor.setParent(this);
this.joins.add(joinDescriptor);
}
}
}