package training.corba;

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

public class HelloClient {

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

		// IOR reference to a POA
		org.omg.PortableServer.POA 		    	refRootPOA = null;

		// IOR reference to a Naming service
		org.omg.CosNaming.NamingContext 		refNS = null;

		// IOR reference to a distributed Corba object
		org.omg.CORBA.Object 				obj = null;

		// IOR reference to a distributed object of interface hello
		Hello 						refHello = null;

		// create ORB
		java.util.Properties props = System.getProperties();
		// configure the orb
		// Example : ORBACUS
		//props.put("org.omg.CORBA.ORBClass", "com.ooc.CORBA.ORB");
		//props.put("org.omg.CORBA.ORBSingletonClass", "com.ooc.CORBA.ORBSingleton");
		//props.put("ooc.orb.id", "Hello-Client");

		orb = org.omg.CORBA.ORB.init(args, props);
		try {
			obj = orb.resolve_initial_references("RootPOA");
		} catch (org.omg.CORBA.ORBPackage.InvalidName e) {
			System.out.println("HelloClient : got an exception " + e);
		}

		// Get the reference of the default POA
		refRootPOA = org.omg.PortableServer.POAHelper.narrow(obj);

		// Get the reference of the naming service

		try {
			java.io.BufferedReader in = new java.io.BufferedReader(
				new java.io.FileReader("Naming.ior"));
			String ref = in.readLine();
			obj = orb.string_to_object(ref);
		} catch(IOException e) {
			System.out.println(e);
			System.exit(1);
		}
		
//		obj = orb.string_to_object("relfile:/Naming.ref");
		if(obj == null){
			System.err.println("example.HelloServer: cannot read IOR from Naming.ref");
			System.exit(1);
		}

		/*
		try {
			obj = orb.resolve_initial_references("NameService");
		} catch(org.omg.CORBA.ORBPackage.InvalidName e) {
			System.out.println("HelloServer: can't resolve 'NameService' " + e);
			System.exit(1);
		}
		*/
		refNS = org.omg.CosNaming.NamingContextHelper.narrow(obj);

		try {
			// get hello's reference
			NameComponent[] name = new NameComponent[1];
			name[0] = new NameComponent();
			name[0].id = "hello";    // context
			name[0].kind = "";
			obj = refNS.resolve(name);
		} catch(NotFound e) {
			System.err.print("HelloClient: got a `NotFound' exception " + e);
			System.exit(1) ;

		} catch(CannotProceed e) {
			System.err.println("HelloClient: got a `CannotProceed' exception" + e);
			System.exit(1) ;

		} catch(InvalidName e) {
			System.err.println("HelloClient: got an `InvalidName' exception" + e);
			System.exit(1) ;
		}

		try {
			// Call a method on hello object
			refHello = HelloHelper.narrow(obj);
			refHello.print("hello ");
			refHello.print("world ");
			refHello.print("!");
		} catch (Exception e) {
			System.err.println("HelloClient: got an exception " + e);
		}

	}
}