error: setting the parameters values in .cc file instead of .ned

[SHanan]

Hello, 

I am using routing -- builder code , to build network using text file. I created Dynamic.cc file : because I will use it later to pass requests .. etc .    

what I want is to set the values of nodesFile  / connectionsFile in Dynamic.cc file. But my code is not working: when I run the code -> he prompt a msessage "unassigned parameter" and ask me to enter the values !!

Dynamic.ned

package networks;

import VNFs.Firewall;

import VNFs.Router;

import VNFs.WebApp;

import builder.NetBuilder;

network Dynamic

{

    @class(Dynamic);

    string sfcNodes ;

    string sfcConnections ;

    submodules:

        builder: NetBuilder {

            nodesFile = sfcNodes;

            connectionsFile = sfcConnections;

        }

}

and the simple module (Netbuilder.ned ):

package builder;

//

// Dynamically sets up a network, with the topology coming from text files

//

simple NetBuilder

{

    parameters:

        @display("i=block/cogwheel_s");

        string nodesFile;

        string connectionsFile;

}

Dynamic.cc

void Dynamic::initialize(){
std::string nodes =getParentModule()->par("nodesFile").stdstringValue();

   std::string connections = getParentModule()->par("connectionsFile").stdstringValue();

    nodes= "SFC1_vnfs.txt";

    connections="SFC1_connections.txt";}