Source for gnu.CORBA.GIOP.v1_0.ReplyHeader

   1: /* ReplyHeader.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.GIOP.v1_0;
  40: 
  41: import gnu.CORBA.CDR.AbstractCdrInput;
  42: import gnu.CORBA.CDR.AbstractCdrOutput;
  43: import gnu.CORBA.GIOP.ServiceContext;
  44: import gnu.CORBA.GIOP.CodeSetServiceContext;
  45: 
  46: /**
  47:  * The header of the standard reply.
  48:  *
  49:  * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
  50:  */
  51: public class ReplyHeader
  52:   extends gnu.CORBA.GIOP.ReplyHeader
  53: {
  54:   /**
  55:    * Return the message status as a string.
  56:    */
  57:   public String getStatusString()
  58:   {
  59:     switch (reply_status)
  60:       {
  61:         case NO_EXCEPTION :
  62:           return "ok";
  63: 
  64:         case USER_EXCEPTION :
  65:           return "user exception";
  66: 
  67:         case SYSTEM_EXCEPTION :
  68:           return "system exception";
  69: 
  70:         case LOCATION_FORWARD :
  71:           return "moved";
  72: 
  73:         default :
  74:           return null;
  75:       }
  76:   }
  77: 
  78:   /**
  79:    * Get the string representation of all included contexts.
  80:    */
  81:   public String contexts()
  82:   {
  83:     StringBuffer b = new StringBuffer();
  84:     for (int i = 0; i < service_context.length; i++)
  85:       {
  86:         b.append(service_context [ i ].toString());
  87:         b.append(' ');
  88:       }
  89:     return b.toString();
  90:   }
  91: 
  92:   /**
  93:    * Reads the header from the stream.
  94:    *
  95:    * Sets the code set of this stream to
  96:    * the code set, specfied in the header.
  97:    *
  98:    * @param in a stream to read from.
  99:    */
 100: 
 101:   public void read(AbstractCdrInput in)
 102:   {
 103:     service_context = ServiceContext.readSequence(in);
 104:     request_id = in.read_ulong();
 105:     reply_status = in.read_ulong();
 106: 
 107:     in.setCodeSet(CodeSetServiceContext.find(service_context));
 108:   }
 109: 
 110:   /**
 111:    * Returns a short string representation.
 112:    *
 113:    * @return a string representation.
 114:    */
 115:   public String toString()
 116:   {
 117:     String status = getStatusString();
 118:     if (status == null)
 119:       status = "status " + reply_status;
 120:     return request_id + ", " + status + " " + contexts();
 121:   }
 122: 
 123:   /**
 124:    * Writes the header to the stream.
 125:    *
 126:    * Sets the code set of this stream to
 127:    * the code set, specfied in the header.
 128:    *
 129:    * @param out a stream to write into.
 130:    */
 131:   public void write(AbstractCdrOutput out)
 132:   {
 133:     ServiceContext.writeSequence(out, service_context);
 134:     out.write_ulong(request_id);
 135:     out.write_ulong(reply_status);
 136: 
 137:     out.setCodeSet(CodeSetServiceContext.find(service_context));
 138:   }
 139: }