@Override
	public boolean isReadOnly() throws NotConnectedException {
		if (statusCode == null) {
			throw new NotConnectedException("not connected");
		}
		return readOnly;
	}
Get the ProjectLocator associated with a local project URL.
@return project locator object or null if URL supplies a RepositoryAdapter and/or 
RepositoryServerAdapter.
Ghidra/Framework/Project/src/main/java/ghidra/framework/protocol/ghidra/DefaultLocalGhidraProtocolConnector.java