/**
* Look for the specified policy element, using an XPath traversal of zone, template, and agent
* nodes
*
* @param zoneId The zoneId to retrieve policy for
* @param policySubPath The path of the policy to retrieve, such as "requestPolicy" or
* "eventPolicy/transmitPolicy"
* @param objectName The object type to retrieve policy for
* @return
*/
private Element getPolicyElement(String zoneId, String policySubPath, String objectName) {
if (fConfig != null) {
JXPathContext xpathContext =
JXPathContext.newContext(fConfig.getDocument().getDocumentElement());
xpathContext.setLenient(true);
// Look first, for policy located under the particular zone node
Pointer currentPointer = xpathContext.getPointer("zone[@id='" + zoneId + "']");
if (currentPointer != null && currentPointer.getNode() != null) {
Element policyNode = findPolicy(xpathContext, currentPointer, policySubPath, objectName);
if (policyNode != null) {
return policyNode;
}
// No policy for this object found at the zone level, search for policy under the
// template
Element zoneNode = (Element) currentPointer.getNode();
String templateId = zoneNode.getAttribute("template");
if (templateId != null) {
currentPointer = xpathContext.getPointer("template[@id='" + templateId + "']");
policyNode = findPolicy(xpathContext, currentPointer, policySubPath, objectName);
if (policyNode != null) {
return policyNode;
}
}
}
// Finally, look at the root agent element
currentPointer = xpathContext.getContextPointer();
return findPolicy(xpathContext, currentPointer, policySubPath, objectName);
}
return null;
}
