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+/* 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;
+ }
+} \ No newline at end of file
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