Corba program of reverse string

// IDL

module ReverseModule
{
    interface Reverse
    {
        string reverse_string(in string str);
    };
};


// ReverseImpl
// Contains the implementation of the methods defined in the IDL file.

import ReverseModule.ReversePOA;
import java.lang.String;
class ReverseImpl extends ReversePOA
{
    ReverseImpl()
    {
        super();
        System.out.println(\"Reverse Object Created\");
    }

    public String reverse_string(String name)
    {
    StringBuffer str=new StringBuffer(name);    
    str.reverse();
        return ((\"Server Send \"+str));
    }
}


// Server

import ReverseModule.Reverse;
import org.omg.CosNaming.*;
import org.omg.CosNaming.NamingContextPackage.*;
import org.omg.CORBA.*;
import org.omg.PortableServer.*;

class ReverseServer
{

    public static void main(String[] args)
    {
        try
        {
            // initialize the ORB
            org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init(args,null);

            // initialize the BOA/POA
            POA rootPOA = POAHelper.narrow(orb.resolve_initial_references(\"RootPOA\"));
            rootPOA.the_POAManager().activate();

            // creating the calculator object
            ReverseImpl rvr = new ReverseImpl();

            // get the object reference from the servant class
            org.omg.CORBA.Object ref = rootPOA.servant_to_reference(rvr);

            System.out.println(\"Step1\");
            Reverse h_ref = ReverseModule.ReverseHelper.narrow(ref);
            System.out.println(\"Step2\");

            org.omg.CORBA.Object objRef = orb.resolve_initial_references(\"NameService\");

            System.out.println(\"Step3\");
            NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);
            System.out.println(\"Step4\");

            String name = \"Reverse\";
            NameComponent path[] = ncRef.to_name(name);
            ncRef.rebind(path,h_ref);

            System.out.println(\"Reverse Server reading and waiting....\");
            orb.run();


        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
}


// Client

import ReverseModule.*;
import org.omg.CosNaming.*;
import org.omg.CosNaming.NamingContextPackage.*;
import org.omg.CORBA.*;
import java.io.*;

class ReverseClient
{

    public static void main(String args[])
    {
        Reverse ReverseImpl=null;

        try
        {
            // initialize the ORB
            org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init(args,null);

            org.omg.CORBA.Object objRef = orb.resolve_initial_references(\"NameService\");
            NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);

            String name = \"Reverse\";
            ReverseImpl = ReverseHelper.narrow(ncRef.resolve_str(name));

            System.out.println(\"Enter String=\");
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            String str= br.readLine();

            String tempStr= ReverseImpl.reverse_string(str);

            System.out.println(tempStr);
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
}


// OUTPUT

Z:\\mca317\\corba\\five>java -classpath .\\ ReverseClient -ORBInitialPort 1050 -ORBInitialHost mca24
Enter String=
Hello my name is nishant
Server Send tnahsin si eman ym olleH