Setting up JBuilder for VisiBroker
First we must have installed VisiBroker for Java on our machine. If we never have used VisiBroker with JBuilder we must do some setting up in JBuilder:

• Go to Tools | CORBA Setup...
• The following dialogue window is shown:

  

• Select the VisiBroker configuration. We can check if the settings apply to our local installation by selecting Edit... button.
• If we leave all options as is, the VisiBroker configuration will made default for the Java VM, instead of Java's own ORB.

Writing the client
We have set up VisiBroker in JBuilder and now we can start using it to write a CodeSite CORBA client. We have to create a new project. Go to the project properties and select the Build tab page. This should look something like this:

Make sure the VisiBroker configuration is selected. It is good practice to organise our class files in packages. If we compile an IDL file, the module name is used to generate package names. But most of the time this will not be sufficient. We can set a package name in this dialogue window, which will be the base of the package generated from the IDL. We set the Package to com.ukbug.cs. Our project is set up and we must now include the IDL file generated by Delphi. Go to Project | Add to project | Add file and select the IDL file. The file is added to the project. Select the IDL file and right-click on the file. Select the Make command from the pop-up menu. JBuilder now compiles the IDL file and generates stub and skeleton Java source files. If the compile progress is stopped we can see a lot of files added to the IDL file node. Most of them are not interesting, because they are used for writing CORBA sever applications and we are writing a CORBA client. But still it can be quit interesting to look at the files and see what they do (we will at the CORBA MasterClass). We are going to write a separate class, CSLogger, to access the CodeSite server and print debug messages. As a separate class we can use it in many more projects and applications The following piece of code shows the class:

  package com.ukbug.cs.csclient;

  import org.omg.CORBA.*;
  import com.ukbug.cs.CSCServer.*;

  public class CSLogger {
    private ICodeSite logger = null;

    public CSLogger() {
      initCORBA();
    }

    private void initCORBA() {
      try {
        ORB orb = ORB.init(new String[]{}, null);
        CodeSiteFactory factory =
          CodeSiteFactoryHelper.bind(orb, "CodeSite");
        logger = factory.CreateInstance("CodeSite");
      } catch (Exception e) {
        e.printStackTrace();
      }
    }

    public void println(String message) {
      logger.SendMsg(message);
    }

    public void enterMethod(String s) {
      logger.EnterMethod(s);
    }

    public void exitMethod(String s) {
      logger.ExitMethod(s);
    }

    public static void main(String[] args) {
      CSLogger log = new CSLogger();
      log.enterMethod("Enter a JBuilder 3.5 Method");
      log.println("Some debugging message...");
      log.println("Another debugging message...");
      log.println("A final debugging message...");
      log.exitMethod("Exit a JBuilder 3.5 method");
    }
  }