public boolean removeRoleFromUser()

in services/src/main/java/org/apache/custos/service/federated/client/keycloak/KeycloakClient.java [653:701]
43 lines of code
12 McCabe index (conditional complexity)

    public boolean removeRoleFromUser(String accessToken, String realmId, String username,
                                      List<String> roles, String clientId, boolean clientLevel) {

        try (Keycloak client = getClient(iamServerURL, superAdminRealmID, superAdminUserName, superAdminPassword)) {
            UserRepresentation representation = getUserByUsername(client, realmId, username.toLowerCase());

            if (representation != null) {
                UserResource retrievedUser = client.realm(realmId).users().get(representation.getId());

                if (clientLevel) {
                    List<ClientRepresentation> clientRepresentationList =
                            client.realm(realmId).clients().findByClientId(clientId);

                    if (clientRepresentationList != null && !clientRepresentationList.isEmpty()) {
                        ClientRepresentation clientRep = clientRepresentationList.get(0);
                        List<RoleRepresentation> roleRepresentations = new ArrayList<>();
                        for (String roleName : roles) {
                            RoleResource roleResource = client.realm(realmId).
                                    clients().get(clientRep.getId()).roles().get(roleName);
                            if (roleResource != null) {
                                roleRepresentations.add(roleResource.toRepresentation());
                            }
                        }
                        if (!roleRepresentations.isEmpty()) {
                            retrievedUser.roles().clientLevel(clientRep.getId()).remove(roleRepresentations);
                        }


                    }
                } else {
                    List<RoleRepresentation> roleRepresentations = new ArrayList<>();
                    for (String roleName : roles) {
                        RoleResource roleResource = client.realm(realmId).roles().get(roleName);
                        if (roleResource != null) {
                            roleRepresentations.add(roleResource.toRepresentation());
                        }
                    }
                    if (!roleRepresentations.isEmpty()) {
                        retrievedUser.roles().realmLevel().remove(roleRepresentations);
                    }
                }
            }
            return true;
        } catch (Exception ex) {
            String msg = "Error removing roles from user , reason " + ex.getMessage();
            LOGGER.error(msg, ex);
            throw new RuntimeException(msg, ex);
        }
    }