@Override
    public List<UserModel> getUsers(RealmModel realm, int firstResult, int maxResults) {
        List<UserModel> users = session.userLocalStorage().getUsers(realm, firstResult, maxResults);
        logger.info("loaded {} users.", users.size());
        return users;
    }

    @Override
    public UserModel getUserByUsername(String username, RealmModel realm) {
        logger.info("Looking for user '{}'", username);
        UserModel adapter = session.userLocalStorage().getUserByUsername(username, realm);
        if (adapter == null) {
            logger.info("Couldn't find '{}' in keycloak storage. Looking in properties.", username);
            String password = properties.getProperty(username);
            if (password != null) {
                adapter = session.userLocalStorage().addUser(realm, username);
                adapter.setFederationLink(model.getId());
                adapter.setEnabled(true);
                String pass = properties.getProperty(username);
                session.userCredentialManager().updateCredential(realm, adapter, UserCredentialModel.password(properties.getProperty(username), false));
                logger.info("Created new user in keycloak with U:{} P:{}", username, pass);
            }
        }
        return adapter;
    }

    @Override
    public boolean updateCredential(RealmModel realm, UserModel user, CredentialInput input) {
        return false; //defers to keycloak
    }

    @Override
    public boolean isConfiguredFor(RealmModel realm, UserModel user, String credentialType) {
        return credentialType.equals(CredentialModel.PASSWORD);
    }

    @Override
    public Set<String> getDisableableCredentialTypes(RealmModel realm, UserModel user) {
        logger.info("getDisableableCredentialTypes");
        return Collections.emptySet();
    }

    @Override
    public boolean supportsCredentialType(String credentialType) {
        return credentialType.equals(CredentialModel.PASSWORD);
    }

    @Override
    public boolean isValid(RealmModel realm, UserModel user, CredentialInput input) {
        logger.info("Password Validation");
        boolean isExistingUser = session.userLocalStorage().getUserByUsername(user.getUsername(), realm) != null;
        if (!supportsCredentialType(input.getType()) || !(input instanceof UserCredentialModel) || isExistingUser) {
            return false; //defer to keycloak if user exists
        }

        UserCredentialModel cred = (UserCredentialModel) input;
        String password = properties.getProperty(user.getUsername());
        return password != null && !UNSET_PASSWORD.equals(password) && password.equals(cred.getValue());
    }