package beans;

import common.*;
import oracle.aurora.jndi.sess_iiop.ServiceCtx;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.servlet.http.HttpSessionBindingListener;
import javax.servlet.http.HttpSessionBindingEvent;
import java.util.Hashtable;

public class HelloCorbaWrapperBean 
       implements HttpSessionBindingListener
{
   private Hello hello = null;

   public String doCallCORBA(String serviceURL, String inJServer)  {

      try {
        Context ic = null;
        if (hello == null) {
          if (inJServer != null) {
            // use simplified and optimized lookup in JServer 
            ic = new InitialContext();
          } else if (serviceURL != null) { 
            // not running in JServer, use standard lookup	
            Hashtable env = new Hashtable();
            env.put(Context.URL_PKG_PREFIXES, "oracle.aurora.jndi");
            env.put(Context.SECURITY_PRINCIPAL, "scott");
            env.put(Context.SECURITY_CREDENTIALS, "tiger");
            env.put(Context.SECURITY_AUTHENTICATION, ServiceCtx.NON_SSL_LOGIN);
            ic = new InitialContext (env);
          }
          hello = (Hello)ic.lookup (serviceURL + "/test/HelloCorb");
        }
        return (hello.helloWorld());
      } catch (Exception e) { return "Error occurred: " + e; }
    }

  public void valueBound(HttpSessionBindingEvent event) {
    // nothing to do here, Corba object will be created 
    // only when a query is submitted
  }
 
  public synchronized void valueUnbound(HttpSessionBindingEvent event) {
    // method is exceuted when bean is removed from the session
    if (hello != null) {
      try {
        hello._release();
      } catch (Exception e) {}
    }
  }

}