@XContent
protected void setGuards(DocumentFragment content) {
Node node = content.getFirstChild();
while (node != null) {
if (node.getNodeType() == Node.ELEMENT_NODE) {
String name = node.getNodeName();
if ("guard".equals(name)) {
NamedNodeMap map = node.getAttributes();
Node aId = map.getNamedItem("id");
Node aType = map.getNamedItem("type");
if (aId == null) {
throw new IllegalArgumentException("id is required");
}
String id = aId.getNodeValue();
if (aType == null) {
throw new IllegalArgumentException("type is required");
} else {
// String value = node.getTextContent().trim();
// guards.put(id, new ScriptGuard(value));
// TODO: compound guard
}
String type = aType.getNodeValue();
if ("permission".equals(type)) {
String value = node.getTextContent().trim();
guards.put(id, new PermissionGuard(value));
} else if ("isAdministrator".equals(type)) {
String value = node.getTextContent().trim();
guards.put(id, new IsAdministratorGuard(value));
} else if ("facet".equals(type)) {
String value = node.getTextContent().trim();
guards.put(id, new FacetGuard(value));
} else if ("type".equals(type)) {
String value = node.getTextContent().trim();
guards.put(id, new TypeGuard(value));
} else if ("schema".equals(type)) {
String value = node.getTextContent().trim();
guards.put(id, new SchemaGuard(value));
} else if ("user".equals(type)) {
String value = node.getTextContent().trim();
guards.put(id, new UserGuard(value));
} else if ("group".equals(type)) {
String value = node.getTextContent().trim();
guards.put(id, new GroupGuard(value));
} else if ("script".equals(type)) {
Node engineNode = map.getNamedItem("engine");
if (engineNode == null) {
throw new IllegalArgumentException(
"Must specify an engine attribute on script guards");
}
String value = node.getTextContent().trim();
guards.put(id, new ScriptGuard(engineNode.getNodeValue(), value));
} else if ("expression".equals(type)) {
String value = node.getTextContent().trim();
try {
guards.put(id, PermissionService.getInstance().parse(value, guards));
} catch (ParseException e) {
log.error(e, e);
}
} else { // the type should be a guard factory
String value = node.getTextContent().trim();
try {
Class<?> factory = Class.forName(type);
Guard guard = ((GuardFactory) factory.newInstance()).newGuard(value);
guards.put(id, guard);
} catch (Exception e) {
log.error(e, e); // TODO should throw a DeployException
}
}
}
}
node = node.getNextSibling();
}
}
public Guard getGuard() throws ParseException {
if (expression == null || expression.length() == 0) {
return new And(guards.values());
}
return PermissionService.getInstance().parse(expression, guards);
}
