if (newBits.isEmpty()) {
throw new CommitFailedException(CONSTRAINT, 48, "PrivilegeBits are missing.");
}
Set<String> privNames = bitsProvider.getPrivilegeNames(newBits);
PrivilegeDefinition definition = PrivilegeDefinitionReader.readDefinition(definitionTree);
Set<String> declaredNames = definition.getDeclaredAggregateNames();
// non-aggregate privilege
if (declaredNames.isEmpty()) {
if (!privNames.isEmpty()) {
throw new CommitFailedException(CONSTRAINT, 49, "PrivilegeBits already in used.");
}
validateNext(newBits);
return;
}
// aggregation of a single privilege
if (declaredNames.size() == 1) {
throw new CommitFailedException(CONSTRAINT, 50, "Singular aggregation is equivalent to existing privilege.");
}
// aggregation of >1 privileges
Map<String, PrivilegeDefinition> definitions = new PrivilegeDefinitionReader(rootBefore).readDefinitions();
for (String aggrName : declaredNames) {
// aggregated privilege not registered
if (!definitions.containsKey(aggrName)) {
throw new CommitFailedException(CONSTRAINT, 51, "Declared aggregate '" + aggrName + "' is not a registered privilege.");
}
// check for circular aggregation
if (isCircularAggregation(definition.getName(), aggrName, definitions)) {
String msg = "Detected circular aggregation within custom privilege caused by " + aggrName;
throw new CommitFailedException(CONSTRAINT, 52, msg);
}
}
Set<String> aggregateNames = resolveAggregates(declaredNames, definitions);
for (PrivilegeDefinition existing : definitions.values()) {
Set<String> existingDeclared = existing.getDeclaredAggregateNames();
if (existingDeclared.isEmpty()) {
continue;
}
// test for exact same aggregation or aggregation with the same net effect
if (declaredNames.equals(existingDeclared) || aggregateNames.equals(resolveAggregates(existingDeclared, definitions))) {
String msg = "Custom aggregate privilege '" + definition.getName() + "' is already covered by '" + existing.getName() + '\'';
throw new CommitFailedException(CONSTRAINT, 53, msg);
}
}
PrivilegeBits aggrBits = bitsProvider.getBits(declaredNames.toArray(new String[declaredNames.size()]));