public ByteBuffer handleMessage()

in kerby-kerb/kerb-admin-server/src/main/java/org/apache/kerby/kerberos/kerb/admin/server/kadmin/AdminServerHandler.java [92:137]
42 lines of code
8 McCabe index (conditional complexity)

    public ByteBuffer handleMessage(ByteBuffer receivedMessage,
                                    InetAddress remoteAddress) throws KrbException, IOException {
        XdrStructType decoded = new AdminMessageCode();
        decoded.decode(receivedMessage);
        XdrFieldInfo[] fieldInfos = decoded.getValue().getXdrFieldInfos();
        AdminMessageType type = (AdminMessageType) fieldInfos[0].getValue();

        /**Create LocalKadmin here*/
        LocalKadmin localKadmin = new LocalKadminImpl(adminServerContext.getAdminServerSetting());
        ByteBuffer responseMessage = null;

        switch (type) {
            case ADD_PRINCIPAL_REQ:
                System.out.println("message type: add principal req");
                responseMessage = handleAddPrincipalReq(localKadmin, fieldInfos);
                break;
            case DELETE_PRINCIPAL_REQ:
                System.out.println("message type: delete principal req");
                responseMessage = handleDeletePrincipalReq(localKadmin, fieldInfos);
                break;
            case RENAME_PRINCIPAL_REQ:
                System.out.println("message type: rename principal req");
                responseMessage = handleRenamePrincipalReq(localKadmin, fieldInfos);
                break;
            case GET_PRINCS_REQ:
                System.out.println("message type: get principals req");
                responseMessage = handleGetprincsReq(localKadmin, fieldInfos);
                break;
            case EXPORT_KEYTAB_REQ:
                System.out.println("message type: export keytab req");
                responseMessage = handleExportKeytabReq(localKadmin, fieldInfos);
                break;
            case CHANGE_PWD_REQ:
                System.out.println("message type: change password req");
                responseMessage = handleChangePwdReq(localKadmin, fieldInfos);
                break;
            case GET_PRINCIPAL_REQ:
                System.out.println("message type: get principal req");
                responseMessage = handleGetPrincipalRep(localKadmin, fieldInfos);
                break;
            default:
                throw new KrbException("AdminMessageType error, can not handle the type: " + type);
        }
        return responseMessage;

    }