old-autovect-branch/libjava/classpath/org/omg/CosNaming/BindingIteratorPOA.java

   1 /* BindingIteratorPOA.java --
   2    Copyright (C) 2005 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38
  39 package org.omg.CosNaming;
  40
  41 import gnu.CORBA.Minor;
  42
  43 import org.omg.CORBA.BAD_OPERATION;
  44 import org.omg.CORBA.CompletionStatus;
  45 import org.omg.CORBA.portable.InputStream;
  46 import org.omg.CORBA.portable.InvokeHandler;
  47 import org.omg.CORBA.portable.OutputStream;
  48 import org.omg.CORBA.portable.ResponseHandler;
  49 import org.omg.PortableServer.POA;
  50 import org.omg.PortableServer.Servant;
  51
  52 /**
  53  * The binding iterator servant, used in POA-based naming service
  54  * implementations.
  55  *
  56  * @since 1.4
  57  *
  58  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  59  */
  60 public abstract class BindingIteratorPOA
  61   extends Servant
  62   implements BindingIteratorOperations, InvokeHandler
  63 {
  64   /** @inheritDoc */
  65   public String[] _all_interfaces(POA poa, byte[] object_ID)
  66   {
  67     return new String[] { BindingIteratorHelper.id() };
  68   }
  69
  70   /**
  71    * Call the required method.
  72    */
  73   public OutputStream _invoke(String method, InputStream in, ResponseHandler rh)
  74   {
  75     OutputStream out = null;
  76
  77     // We suppose that the next_n should be the most popular.
  78     if (method.equals("next_n"))
  79       {
  80         // The next_n has been invoked.
  81         int amount = in.read_ulong();
  82         BindingListHolder a_list = new BindingListHolder();
  83
  84         boolean result = next_n(amount, a_list);
  85
  86         out = rh.createReply();
  87         out.write_boolean(result);
  88         BindingListHelper.write(out, a_list.value);
  89       }
  90     else if (method.equals("next_one"))
  91       {
  92         // The next_one has been invoked.
  93         BindingHolder a_binding = new BindingHolder();
  94
  95         boolean result = next_one(a_binding);
  96
  97         out = rh.createReply();
  98         out.write_boolean(result);
  99         BindingHelper.write(out, a_binding.value);
 100       }
 101     else if (method.equals("destroy"))
 102       {
 103         // The destroy has been invoked.
 104         destroy();
 105         out = rh.createReply();
 106       }
 107     else
 108       throw new BAD_OPERATION(method, Minor.Method,
 109         CompletionStatus.COMPLETED_MAYBE);
 110
 111     return out;
 112   }
 113
 114   /**
 115    * Get the CORBA object that delegates calls to this servant. The servant must
 116    * be already connected to an ORB.
 117    */
 118   public BindingIterator _this()
 119   {
 120     return BindingIteratorHelper.narrow(super._this_object());
 121   }
 122
 123   /**
 124    * Get the CORBA object that delegates calls to this servant. Connect to the
 125    * given ORB, if needed.
 126    */
 127   public BindingIterator _this(org.omg.CORBA.ORB orb)
 128   {
 129     return BindingIteratorHelper.narrow(super._this_object(orb));
 130   }
 131 }