Source for org.omg.CosNaming.BindingIteratorPOA

   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: }