/* File:     ClientApp.java
 * Author:   E. W. Grundke
 *
 * Comments: Client application for the 2-dimensional vector demo.
 *
 * To run this on borg under java 1.3:
 *           /opt/java/j2sdk1_3_1_02/bin/idlj -fclient VecRotn.idl
 *           /opt/java/j2sdk1_3_1_02/bin/javac *.java
 *           /opt/java/j2sdk1_3_1_02/bin/java ClientApp
 * On locutus, replace /opt/java/j2sdk1_3_1_02/bin by /usr/j2se/bin.
 */

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

public class ClientApp {

    public static void main(String args[]) {
        try {
            // create and initialize an ORB for port number 50505 on borg:
            Properties props = new Properties();
	    props.put("org.omg.CORBA.ORBInitialHost", "borg.cs.dal.ca");
	    props.put("org.omg.CORBA.ORBInitialPort", "50505");
	    ORB orb = ORB.init((String[])null, props);
               
	    try {
		// get the root naming context
                org.omg.CORBA.Object obj = 
		    orb.resolve_initial_references("NameService");
                // narrow() doestypecasting for CORBA objects
		NamingContext naming = NamingContextHelper.narrow(obj);
		System.out.println("naming = "+naming);

		// resolve the Object Reference;  "kind" field is empty
		NameComponent nc = new NameComponent("Rotator", "");
		System.out.println("nc = "+nc);
                NameComponent[] path = {nc};  // 1-element array (naming is tree-like)
		try {
		    // find the CORBA object corresponding to name "Rotator"
                    org.omg.CORBA.Object obj2 = naming.resolve(path);
		    Vctr2Rotn rotn = Vctr2RotnHelper.narrow(obj2);

/////////////// Now we're finished with CORBA. Use rotn like any java object!

                    // constructor provided by IDL!
                    Vctr2 v = new Vctr2(1.0, 1.0);  

		    // 90 deg counter-clockwise should give (+1, -1).
		    v = rotn.rotate(v, 90.0); 
		    display(v);  // should be 

                    // back 45 deg clockwise should give (0, +sqrt(2.0)).
		    v = rotn.rotate(v, -45.0); 
		    display(v);

		    System.out.println(rotn.count());
		}
		catch (Exception e) {
		    System.out.println("E1: "+e.getMessage());
		}
	    } 
	    catch (org.omg.CORBA.ORBPackage.InvalidName e) {
		    System.out.println("E2: "+e);
	    }
	} 
	catch (org.omg.CORBA.SystemException e) {
	    System.out.println("ERROR : " + e) ;
            e.printStackTrace(System.out);
        }
    }

    public static void display(Vctr2 v) {
	System.out.println("x: "+v.x+" y:"+v.y);
    }
}