Source for org.omg.CORBA.ServiceInformationHelper

   1: /* ServiceInformationHelper.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.CORBA;
  40: 
  41: import org.omg.CORBA.portable.InputStream;
  42: import org.omg.CORBA.portable.OutputStream;
  43: 
  44: /**
  45:  * Helper operations for the service information.
  46:  *
  47:  * This class is part of the service information support, but the
  48:  * 1.4 API specification states that this support should be not implemented.
  49:  *
  50:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  51:  */
  52: public abstract class ServiceInformationHelper
  53: {
  54:   /**
  55:    * The service information repository id.
  56:    */
  57:   private static String _id = "IDL:org/omg/CORBA/ServiceInformation:1.0";
  58: 
  59:   /**
  60:    * The caches typecode value, computed once.
  61:    */
  62:   private static TypeCode typeCode;
  63: 
  64:   /**
  65:    * Extract the service information from the given Any.
  66:    */
  67:   public static ServiceInformation extract(Any a)
  68:   {
  69:     return read(a.create_input_stream());
  70:   }
  71: 
  72:   /**
  73:    * Get the service information repositroy id.
  74:    */
  75:   public static String id()
  76:   {
  77:     return _id;
  78:   }
  79: 
  80:   /**
  81:    * Insert the service information into the given Any.
  82:    */
  83:   public static void insert(Any a, ServiceInformation that)
  84:   {
  85:     OutputStream out = a.create_output_stream();
  86:     a.type(type());
  87:     write(out, that);
  88:     a.read_value(out.create_input_stream(), type());
  89:   }
  90: 
  91:   /**
  92:    * Read the service information from the given CDR input stream.
  93:    */
  94:   public static ServiceInformation read(InputStream istream)
  95:   {
  96:     ServiceInformation value = new ServiceInformation();
  97:     value.service_options = LongSeqHelper.read(istream);
  98: 
  99:     int n = istream.read_ulong();
 100:     value.service_details = new ServiceDetail[ n ];
 101: 
 102:     for (int i = 0; i < n; i++)
 103:       value.service_details [ i ] = ServiceDetailHelper.read(istream);
 104:     return value;
 105:   }
 106: 
 107:   /**
 108:    * Get the service information typecode.
 109:    */
 110:   public static TypeCode type()
 111:   {
 112:     if (typeCode == null)
 113:       {
 114:         ORB orb = ORB.init();
 115: 
 116:         StructMember[] members = new StructMember[ 2 ];
 117:         TypeCode member;
 118: 
 119:         member =
 120:           orb.create_alias_tc("IDL:omg.org/CORBA/ServiceOptionSeq:1.0",
 121:                               "ServiceOptionSeq", LongSeqHelper.type()
 122:                              );
 123: 
 124:         members [ 0 ] = new StructMember("service_options", member, null);
 125: 
 126:         member = ServiceDetailHelper.type();
 127:         member = orb.create_sequence_tc(0, member);
 128:         member =
 129:           orb.create_alias_tc("IDL:omg.org/CORBA/ServiceDetailSeq:1.0",
 130:                               "ServiceDetailSeq", member
 131:                              );
 132:         members [ 1 ] = new StructMember("service_details", member, null);
 133: 
 134:         typeCode =
 135:           orb.create_struct_tc(ServiceInformationHelper.id(),
 136:                                "ServiceInformation", members
 137:                               );
 138:       }
 139:     return typeCode;
 140:   }
 141: 
 142:   /**
 143:    * Write the service information to the given CDR output stream.
 144:    */
 145:   public static void write(OutputStream ostream, ServiceInformation value)
 146:   {
 147:     LongSeqHelper.write(ostream, value.service_options);
 148: 
 149:     ostream.write_ulong(value.service_details.length);
 150: 
 151:     for (int i = 0; i < value.service_details.length; i++)
 152:       ServiceDetailHelper.write(ostream, value.service_details [ i ]);
 153:   }
 154: }