import HelloApp.*;

import java.util.*;
import org.omg.CosNaming.*;
import org.omg.CosNaming.NamingContextPackage.*;
import org.omg.CORBA.*;


/**
 *  Dynamic Skeleton Invocation example
 * servant must extend DynamicImplementation
 *
 *@author     donsez
 *@created    16 juin 2003
 */
class DSIHelloServant extends DynamicImplementation {

	/** store the repository ID for the implemented interface */
	static String[] myIDs = {"IDL:HelloApp/Hello:1.0"};
	
	/** the ORB which the object is connected on */
	ORB orb;


	/**
	 *  create a reference to the ORB
	 */
	public DSIHelloServant() { }


	
	/**
	 *  Sets the oRB attribute of the DSIHelloServant object
	 *
	 *@param  orb  The new oRB value
	 */
	public void setORB(ORB orb) {
		this.orb = orb;
	}


	/**
	 *  must implement invoke() for handling requests
	 *
	 *@param  request  Description of the Parameter
	 */
	public void invoke(ServerRequest request) {
		try {
			System.out.println("DSI: invoke called, op = " + request.operation());

			// create an NVList to hold the parameters
			NVList nvlist = orb.create_list(0);

			// need an if statement like this for each method name
			if (request.operation().equals("sayHello") == true) {

				// need an Any for each argument
				Any any1 = orb.create_any();
				any1.insert_string("");
				nvlist.add_value("arg1", any1, ARG_IN.value);

				/*
				 *  Any any2 = orb.create_any();
				 *  any2.insert_string("");
				 *  nvlist.add_value("arg2", any2, ARG_IN.value);
				 */
				// pass the NVList to the request to get values
				request.arguments(nvlist);

				System.err.println("Argument 1: In value: " + nvlist.item(0).value().extract_string());

				// System.err.println("Argument 2: In value: " + nvlist.item(1).value().extract_short());

				TypeCode result_tc = orb.get_primitive_tc(TCKind.tk_string);
				Any result_any = orb.create_any();
				result_any.type(result_tc);

				request.set_result(result_any);
			} else {
			         throw new org.omg.CORBA.BAD_OPERATION();	
			}
		} catch (org.omg.CORBA.BAD_OPERATION badopex) {
			throw badopex;
		} catch (Exception ex) {
			ex.printStackTrace();
			System.out.println("DSIExample: Exception thrown: " + ex);
		}
	}


	/**
	 *  implement an _ids method to return repository ID of interface
	 *
	 *@return    Description of the Return Value
	 */
	public String[] _ids() {
		return myIDs;
	}
}