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+/* ServantDelegateImpl.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.Poa;
+
+import gnu.CORBA.Unexpected;
+
+import org.omg.CORBA.NO_IMPLEMENT;
+import org.omg.CORBA.ORB;
+import org.omg.CORBA.ORBPackage.InvalidName;
+import org.omg.CORBA.Object;
+import org.omg.PortableServer.CurrentPackage.NoContext;
+import org.omg.PortableServer.POA;
+import org.omg.PortableServer.POAHelper;
+import org.omg.PortableServer.Servant;
+import org.omg.PortableServer.portable.Delegate;
+
+/**
+ * The implementation of the servant delegate for the locally existing
+ * servant.The associated servant that must also implement the
+ * {@link InvokeHandler} interface. Each servant requires a separate
+ * instance of this delegate and can serve a single object only.
+ * Hence the fields are final, but the delegate is typically reused
+ * unless the same servant is connected to different objects.
+ *
+ * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
+ */
+public class ServantDelegateImpl
+ implements Delegate
+{
+ /**
+ * The servant, associated with this object.
+ */
+ final Servant servant;
+
+ /**
+ * The servant (not object) id.
+ */
+ final byte[] servant_id;
+
+ /**
+ * The POA, where the servant is connected.
+ */
+ final gnuPOA poa;
+
+ /**
+ * The object, exposed as an object, served by this servant.
+ */
+ final gnuServantObject object;
+
+ /**
+ * Create the delegat for the servant that will be connected to the
+ * given poa. The method is normally called from inside of gnuPOA.
+ * The constructor sets the newly created delegate as the delegate to this
+ * servant by calling Servant._set_delegate.
+ *
+ * @param a_poa the poa.
+ * @param a_servant the servant.
+ * @param a_servant_id the servant id.
+ */
+ public ServantDelegateImpl(Servant a_servant, gnuPOA a_poa, byte[] a_servant_id)
+ {
+ poa = a_poa;
+ servant = a_servant;
+ servant_id = a_servant_id;
+ servant._set_delegate(this);
+ object =
+ new gnuServantObject(servant, servant_id, (ORB_1_4) servant._orb(), a_poa);
+ object._set_delegate(new LocalDelegate(object, poa, a_servant_id));
+ }
+
+ /**
+ * Check if this object could be named by the given repository id.
+ * @param idl_id the repository id to check.
+ *
+ * @return true if it is one of the possible repository ids of this
+ * object.
+ */
+ public boolean is_a(Servant a_servant, String idl_id)
+ {
+ same(a_servant);
+
+ String[] maybe = object.repository_ids;
+ if (maybe == null)
+ maybe = servant._all_interfaces(poa, object.Id);
+ for (int i = 0; i < maybe.length; i++)
+ {
+ if (maybe [ i ].equals(idl_id))
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * Return the ORB's default POA.
+ */
+ public POA default_POA(Servant a_servant)
+ {
+ same(a_servant);
+ try
+ {
+ return POAHelper.narrow(orb(a_servant).resolve_initial_references("RootPOA"));
+ }
+ catch (InvalidName ex)
+ {
+ throw new Unexpected(ex);
+ }
+ }
+
+ /**
+ * Get ORB.
+ */
+ public ORB orb(Servant a_servant)
+ {
+ same(a_servant);
+ return poa.orb();
+ }
+
+ /**
+ * Get the object, exposing the servant.
+ */
+ public Object this_object(Servant a_servant)
+ {
+ same(a_servant);
+ try
+ {
+ return poa.aom.get(poa.m_orb.currents.get_object_id()).object;
+ }
+ catch (NoContext ex)
+ {
+ return object;
+ }
+ }
+
+ /**
+ * Not supported.
+ *
+ * @specnote Same as for Sun up till 1.5 inclusive.
+ */
+ public Object get_interface_def(Servant a_servant)
+ {
+ same(a_servant);
+ throw new NO_IMPLEMENT();
+ }
+
+ /**
+ * Get the Id of the object being currently served.
+ */
+ public byte[] object_id(Servant a_servant)
+ {
+ same(a_servant);
+ try
+ {
+ byte[] id = poa.m_orb.currents.get_object_id();
+ return id;
+ }
+ catch (NoContext ex)
+ {
+ return object.Id;
+ }
+ }
+
+ /**
+ * Always returns false;
+ */
+ public boolean non_existent(Servant a_servant)
+ {
+ same(a_servant);
+ return false;
+ }
+
+ /**
+ * Return the associated POA.
+ */
+ public POA poa(Servant a_servant)
+ {
+ same(a_servant);
+ try
+ {
+ return poa.m_orb.currents.get_POA();
+ }
+ catch (NoContext ex)
+ {
+ return poa;
+ }
+ }
+
+ /**
+ * Checks if the passed servant is the same as the servant, associated with
+ * this delegate. This class requires a single servant per delegate.
+ */
+ void same(Servant some_servant)
+ {
+ if (servant != some_servant)
+ throw new InternalError("Only one servant per delegate is supported.");
+ }
+} \ No newline at end of file