Source for gnu.CORBA.Poa.LocalServerRequest

   1: /* LocalServerRequest.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 gnu.CORBA.Poa;
  40: 
  41: import gnu.CORBA.gnuNamedValue;
  42: 
  43: import org.omg.CORBA.ARG_INOUT;
  44: import org.omg.CORBA.ARG_OUT;
  45: import org.omg.CORBA.Any;
  46: import org.omg.CORBA.BAD_PARAM;
  47: import org.omg.CORBA.Bounds;
  48: import org.omg.CORBA.Context;
  49: import org.omg.CORBA.NVList;
  50: import org.omg.CORBA.NamedValue;
  51: import org.omg.CORBA.ServerRequest;
  52: import org.omg.CORBA.UnknownUserException;
  53: 
  54: /**
  55:  * Used to make local invocations via LocalRequest.
  56:  *
  57:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  58:  */
  59: public class LocalServerRequest
  60:   extends ServerRequest
  61: {
  62:   /**
  63:    * The local request, on the base of that this instance is created.
  64:    */
  65:   final LocalRequest request;
  66: 
  67:   /**
  68:    * Create a new instance.
  69:    */
  70:   public LocalServerRequest(LocalRequest _request)
  71:   {
  72:     request = _request;
  73:   }
  74: 
  75:   /**
  76:    * Get the argument list that can be modified.
  77:    */
  78:   public void params(NVList args)
  79:   {
  80:     arguments(args);
  81:   }
  82: 
  83:   /**
  84:    * Get contexts.
  85:    */
  86:   public Context ctx()
  87:   {
  88:     return request.ctx();
  89:   }
  90: 
  91:   /**
  92:    * Get the operatin being performed.
  93:    */
  94:   public String operation()
  95:   {
  96:     return request.operation();
  97:   }
  98: 
  99:   /**
 100:    * Get the argument list that can be modified.
 101:    * The direction depends on the size of the passed list.
 102:    * The empty list is filled with the request arguments.
 103:    * The non-empty list is used to set the request arguments.
 104:    */
 105:   public void arguments(NVList args)
 106:   {
 107:     NVList l = request.arguments();
 108:     NamedValue a;
 109: 
 110:     try
 111:       {
 112:         if (args.count() == 0)
 113:           {
 114:             // Transfer to the passed parameter.
 115:             for (int i = 0; i < l.count(); i++)
 116:               {
 117:                 a = l.item(i);
 118:                 args.add_value(a.name(), a.value(), a.flags());
 119:               }
 120:           }
 121:         else
 122:           {
 123:             // Transfer from the passed parameter.
 124:             if (l.count() != args.count())
 125:               throw new BAD_PARAM("Argument number mismatch, current " +
 126:                                   l.count() + ", passed " + args.count()
 127:                                  );
 128:             try
 129:               {
 130:                 for (int i = 0; i < l.count(); i++)
 131:                   {
 132:                     a = l.item(i);
 133:                     if (a.flags() == ARG_INOUT.value ||
 134:                         a.flags() == ARG_OUT.value
 135:                        )
 136:                       {
 137:                         ((gnuNamedValue) a).setValue(args.item(i).value());
 138:                       }
 139:                   }
 140:               }
 141:             catch (ClassCastException cex)
 142:               {
 143:                 InternalError ierr = new InternalError();
 144:                 ierr.initCause(cex);
 145:                 throw ierr;
 146:               }
 147:           }
 148:       }
 149:     catch (Bounds ex)
 150:       {
 151:         InternalError ierr = new InternalError();
 152:         ierr.initCause(ex);
 153:         throw ierr;
 154:       }
 155:   }
 156: 
 157:   /**
 158:    * Set the result.
 159:    */
 160:   public void set_result(Any result)
 161:   {
 162:     gnuNamedValue g = new gnuNamedValue();
 163:     g.setValue(result);
 164:     g.setFlags(ARG_OUT.value);
 165:     request.set_result(g);
 166:   }
 167: 
 168:   /**
 169:    * Get the name of the method being called.
 170:    */
 171:   public String op_name()
 172:   {
 173:     return request.operation();
 174:   }
 175: 
 176:   /**
 177:    * Set the exception that has been thrown.
 178:    */
 179:   public void set_exception(Any exc)
 180:   {
 181:     request.env().exception(new UnknownUserException(exc));
 182:   }
 183: 
 184:   /**
 185:    * Set the result.
 186:    */
 187:   public void result(Any r)
 188:   {
 189:     set_result(r);
 190:   }
 191: 
 192:   /**
 193:    * Set the exception.
 194:    */
 195:   public void except(Any exc)
 196:   {
 197:     set_exception(exc);
 198:   }
 199: }