| /* Local_delegate.java -- |
| Copyright (C) 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.CORBA; |
| |
| import org.omg.CORBA.Context; |
| import org.omg.CORBA.ContextList; |
| import org.omg.CORBA.ExceptionList; |
| import org.omg.CORBA.NO_IMPLEMENT; |
| import org.omg.CORBA.NVList; |
| import org.omg.CORBA.NamedValue; |
| import org.omg.CORBA.ORB; |
| import org.omg.CORBA.Request; |
| import org.omg.CORBA.portable.Delegate; |
| import org.omg.CORBA.portable.ObjectImpl; |
| |
| /** |
| * The delegate, implementing the basic functionality only. This delegate |
| * is set in {@link ORG.connect(org.omg.CORBA.Object)} if ORB |
| * determines that the object is an instance of the |
| * {@link org.omg.CORBA.portable.ObjectImpl} and no other delegate is set. |
| * |
| * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) |
| */ |
| public class SimpleDelegate |
| extends Delegate |
| implements IorProvider |
| { |
| /** |
| * The orb. |
| */ |
| protected final ORB orb; |
| |
| /** |
| * The ior. |
| */ |
| protected IOR ior; |
| |
| public SimpleDelegate(ORB an_orb, IOR an_ior) |
| { |
| orb = an_orb; |
| ior = an_ior; |
| } |
| |
| /** |
| * Set the IOR of this object. The IOR must be newly set if |
| * the server reports that the object has permanently moved to a new |
| * location. |
| * |
| * @param an_ior the new IOR. |
| */ |
| public void setIor(IOR an_ior) |
| { |
| this.ior = an_ior; |
| } |
| |
| /** |
| * Get the IOR of this object. |
| */ |
| public IOR getIor() |
| { |
| return ior; |
| } |
| |
| /** |
| * Not implemented. |
| * |
| * @throws NO_IMPLEMENT, always. |
| */ |
| public Request create_request(org.omg.CORBA.Object target, Context context, |
| String operation, NVList parameters, |
| NamedValue returns |
| ) |
| { |
| throw new NO_IMPLEMENT(); |
| } |
| |
| /** |
| * Not implemented. |
| * |
| * @throws NO_IMPLEMENT, always. |
| */ |
| public Request create_request(org.omg.CORBA.Object target, Context context, |
| String operation, NVList parameters, |
| NamedValue returns, ExceptionList exceptions, |
| ContextList ctx_list |
| ) |
| { |
| throw new NO_IMPLEMENT(); |
| } |
| |
| /** |
| * Not implemented. |
| * |
| * @throws NO_IMPLEMENT, always. |
| */ |
| public org.omg.CORBA.Object duplicate(org.omg.CORBA.Object target) |
| { |
| throw new NO_IMPLEMENT(); |
| } |
| |
| /** |
| * Performs direct comparison ('=='). |
| */ |
| public boolean equals(org.omg.CORBA.Object self, org.omg.CORBA.Object other) |
| { |
| return self == other; |
| } |
| |
| /** |
| * Not implemented. |
| * |
| * @throws NO_IMPLEMENT, always. |
| */ |
| public org.omg.CORBA.Object get_interface_def(org.omg.CORBA.Object target) |
| { |
| throw new NO_IMPLEMENT(); |
| } |
| |
| /** |
| * Return the hashcode (0 <= hashcode < maximum). |
| */ |
| public int hash(org.omg.CORBA.Object target, int maximum) |
| { |
| return target == null ? 0 : target.hashCode() % maximum; |
| } |
| |
| /** |
| * Delegates functionality to java.lang.Object.hashCode(); |
| */ |
| public int hashCode(org.omg.CORBA.Object target) |
| { |
| return target == null ? 0 : target.hashCode(); |
| } |
| |
| /** |
| * Check if this object can be referenced by the given repository id. |
| * |
| * @param target the CORBA object, must be an instance of |
| * {@link org.omg.CORBA.portable.ObjectImpl}. |
| * |
| * @param repositoryIdentifer the repository id. |
| * |
| * @return true if the passed parameter is a repository id of this |
| * CORBA object. |
| */ |
| public boolean is_a(org.omg.CORBA.Object target, String repositoryIdentifer) |
| { |
| if (!(target instanceof ObjectImpl)) |
| throw new NO_IMPLEMENT("Supported only for org.omg.CORBA.portable.ObjectImpl"); |
| |
| ObjectImpl imp = (ObjectImpl) target; |
| String[] ids = imp._ids(); |
| |
| for (int i = 0; i < ids.length; i++) |
| { |
| if (ids [ i ].equals(repositoryIdentifer)) |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Returns true if the objects are the same or have the same delegate set. All |
| * objects in this implementation have a separate delegate. |
| */ |
| public boolean is_equivalent(org.omg.CORBA.Object target, |
| org.omg.CORBA.Object other) |
| { |
| if (target == other) |
| return true; |
| if ((target instanceof ObjectImpl) && other instanceof ObjectImpl) |
| { |
| try |
| { |
| org.omg.CORBA.portable.Delegate a = ((ObjectImpl) target)._get_delegate(); |
| org.omg.CORBA.portable.Delegate b = ((ObjectImpl) other)._get_delegate(); |
| if (a == b) |
| { |
| return true; |
| } |
| else |
| { |
| // We compere the IOR's in this case. |
| if (a instanceof IorProvider && b instanceof IorProvider) |
| { |
| IOR ia = ((IorProvider) a).getIor(); |
| IOR ib = ((IorProvider) b).getIor(); |
| |
| if (ia != null && ib != null) |
| return (ia.equals(ib)); |
| else |
| return ia == ib; |
| } |
| } |
| if (a != null && b != null) |
| { |
| return a.equals(b); |
| } |
| } |
| catch (Exception ex) |
| { |
| // Unable to get one of the delegates. |
| return false; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Returns true by default. |
| */ |
| public boolean is_local(org.omg.CORBA.Object self) |
| { |
| return true; |
| } |
| |
| /** |
| * Returns true if the target is null. |
| */ |
| public boolean non_existent(org.omg.CORBA.Object target) |
| { |
| return target == null; |
| } |
| |
| /** |
| * Returns the ORB, passed in constructor, |
| * regardless of the argument. This class requires a single instance |
| * per each object. |
| */ |
| public ORB orb(org.omg.CORBA.Object target) |
| { |
| return orb; |
| } |
| |
| /** |
| * Returns without action. |
| */ |
| public void release(org.omg.CORBA.Object target) |
| { |
| } |
| |
| /** |
| * This method assumes that the target is local and connected to the ORB. |
| */ |
| public Request request(org.omg.CORBA.Object target, String operation) |
| { |
| if (orb instanceof OrbFunctional) |
| { |
| ((OrbFunctional) orb).ensureRunning(); |
| } |
| gnuRequest g = new gnuRequest(); |
| g.setORB(orb); |
| g.setOperation(operation); |
| g.setIor(ior); |
| g.m_target = target; |
| return g; |
| } |
| } |
