読み取り専用NameSpaceの作成

package nsReadOnly;
                                                                           
import javax.rmi.PortableRemoteObject;
                                                                           
import com.sssw.jbroker.api.naming.Access;
import com.sssw.jbroker.api.naming.NameService;
import com.sssw.jbroker.api.naming.AccessPolicy;
import com.sssw.jbroker.api.naming.NameServiceFactory;
                                                                           
import org.omg.CORBA.ORB;
import org.omg.CORBA.Object;
                                                                           
import org.omg.CosNaming.NameComponent;
import org.omg.CosNaming.NamingContext;
                                                                           
import org.omg.PortableServer.POA;
import org.omg.PortableServer.LifespanPolicyValue;
                                                                           
import com.sssw.jbroker.api.bootstrap.InitialReferencesService;
                                                                           
import helloWorld2.Hello;
import helloWorld2.HelloImpl;
                                                                           
public class MyNameServer
{
    public static void main(String[] args)
    {
    |   try {
    |   |   // create the ORB
    |   |   ORB orb = (ORB) org.omg.CORBA.ORB.init(args, null);
    |   |                                                                  
    |   |   // get the NameService Factory
    |   |   NameServiceFactory factory = (NameServiceFactory) orb.
    |   |       resolve_initial_references("NameServiceFactory");
    |   |                                                                  
    |   |   // get the root POA and activate it
    |   |   POA rootPOA = (POA) orb.resolve_initial_references("RootPOA");
    |   |   rootPOA.the_POAManager().activate();
    |   |                                                                  
    |   |   // create a transient in-process NameService
    |   |   NameService nameService = factory.createNameService(
    |   |       rootPOA, "ns1", LifespanPolicyValue.TRANSIENT, null, null);
    |   |                                                                  
    |   |   // print the root naming context
    |   |   NamingContext rootCtx = nameService.getRootNamingContext();
    |   |   System.out.println(orb.object_to_string(rootCtx));
    |   |                                                                  
    |   |   // publish some objects in it
    |   |   Hello hello = new HelloImpl();
    |   |   NameComponent nc = new NameComponent("hello", "");
    |   |   NameComponent[] name = new NameComponent[] { nc };
    |   |   rootCtx.bind(name, (Object) PortableRemoteObject.toStub(hello));
    |   |                                                                  
    |   |   // make the namespace READ ONLY
    |   |   AccessPolicy accessPolicy = new AccessPolicy();
    |   |   accessPolicy.write_binding  = Access.NONE;
    |   |   accessPolicy.delete_binding = Access.NONE;
    |   |   accessPolicy.add_binding    = Access.NONE;
    |   |   accessPolicy.create_context = Access.NONE;
    |   |   accessPolicy.delete_context = Access.NONE;
    |   |   accessPolicy.add_context    = Access.NONE;
    |   |   nameService.setAccessPolicy(accessPolicy);
    |   |                                                                  
    |   |   // publish root naming context in initial naming
    |   |   InitialReferencesService irs = (InitialReferencesService) orb.
    |   |       resolve_initial_references("InitialReferencesService");
    |   |   irs.bind("NameService", rootCtx, false);
    |   |                                                                  
    |   |   // wait for invocations
    |   |   orb.run();
    |   |                                                                  
    |   } catch (Exception ex) {
    |   |   ex.printStackTrace();
    |   }
    }
}