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 org.omg.CORBA.BAD_OPERATION;
  42: import org.omg.CORBA.CompletionStatus;
  43: import org.omg.CORBA.portable.InputStream;
  44: import org.omg.CORBA.portable.InvokeHandler;
  45: import org.omg.CORBA.portable.OutputStream;
  46: import org.omg.CORBA.portable.ResponseHandler;
  47: import org.omg.PortableServer.POA;
  48: import org.omg.PortableServer.Servant;
  49: 
  50: /**
  51:  * The binding iterator servant, used in POA-based naming service
  52:  * implementations.
  53:  * 
  54:  * @since 1.4 
  55:  *
  56:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  57:  */
  58: public abstract class BindingIteratorPOA
  59:   extends Servant
  60:   implements BindingIteratorOperations, InvokeHandler
  61: {
  62:   /** @inheritDoc */
  63:   public String[] _all_interfaces(POA poa, byte[] object_ID)
  64:   {
  65:     return new String[] { BindingIteratorHelper.id() };
  66:   }
  67: 
  68:   /**
  69:    * Call the required method.
  70:    */
  71:   public OutputStream _invoke(String method, InputStream in, ResponseHandler rh)
  72:   {
  73:     OutputStream out = null;
  74: 
  75:     // We suppose that the next_n should be the most popular.
  76:     if (method.equals("next_n"))
  77:       {
  78:         // The next_n has been invoked.
  79:         int amount = in.read_ulong();
  80:         BindingListHolder a_list = new BindingListHolder();
  81: 
  82:         boolean result = next_n(amount, a_list);
  83: 
  84:         out = rh.createReply();
  85:         out.write_boolean(result);
  86:         BindingListHelper.write(out, a_list.value);
  87:       }
  88:     else if (method.equals("next_one"))
  89:       {
  90:         // The next_one has been invoked.
  91:         BindingHolder a_binding = new BindingHolder();
  92: 
  93:         boolean result = next_one(a_binding);
  94: 
  95:         out = rh.createReply();
  96:         out.write_boolean(result);
  97:         BindingHelper.write(out, a_binding.value);
  98:       }
  99:     else if (method.equals("destroy"))
 100:       {
 101:         // The destroy has been invoked.
 102:         destroy();
 103:         out = rh.createReply();
 104:       }
 105:     else
 106:       throw new BAD_OPERATION(method, 0, CompletionStatus.COMPLETED_MAYBE);
 107: 
 108:     return out;
 109:   }
 110: 
 111:   /**
 112:    * Get the CORBA object that delegates calls to this servant. The servant must
 113:    * be already connected to an ORB.
 114:    */
 115:   public BindingIterator _this()
 116:   {
 117:     return BindingIteratorHelper.narrow(super._this_object());
 118:   }
 119: 
 120:   /**
 121:    * Get the CORBA object that delegates calls to this servant. Connect to the
 122:    * given ORB, if needed.
 123:    */
 124:   public BindingIterator _this(org.omg.CORBA.ORB orb)
 125:   {
 126:     return BindingIteratorHelper.narrow(super._this_object(orb));
 127:   }
 128: }