Source for org.omg.CORBA.ValueMemberHelper

   1: /* ValueMemberHelper.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 gnu.CORBA.Restricted_ORB;
  42: import gnu.CORBA.TypeCodeHelper;
  43: 
  44: import org.omg.CORBA.portable.InputStream;
  45: import org.omg.CORBA.portable.OutputStream;
  46: 
  47: /**
  48:  * The helper operations for the value member.
  49:  *
  50:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  51:  */
  52: public abstract class ValueMemberHelper
  53: {
  54:   /**
  55:    * The cached typecode value, computed once.
  56:    */
  57:   private static TypeCode typeCode = null;
  58: 
  59:   /**
  60:    * Used when creating typecodes with recursive value members.
  61:    */
  62:   private static boolean active = false;
  63: 
  64:   /**
  65:    * Insert the value member into the given Any.
  66:    */
  67:   public static void insert(Any a, ValueMember that)
  68:   {
  69:     OutputStream out = a.create_output_stream();
  70:     a.type(type());
  71:     write(out, that);
  72:     a.read_value(out.create_input_stream(), type());
  73:   }
  74: 
  75:   /**
  76:    * Extract the value member from the given Any.
  77:    */
  78:   public static ValueMember extract(Any a)
  79:   {
  80:     return read(a.create_input_stream());
  81:   }
  82: 
  83:   /**
  84:    * Create a typecode for this value member.
  85:    */
  86:   public static synchronized TypeCode type()
  87:   {
  88:     if (typeCode == null)
  89:       {
  90:         synchronized (TypeCode.class)
  91:           {
  92:             if (typeCode == null)
  93:               {
  94:                 ORB orb = Restricted_ORB.Singleton;
  95: 
  96:                 if (active)
  97:                   {
  98:                     return orb.create_recursive_tc(id());
  99:                   }
 100:                 active = true;
 101: 
 102:                 StructMember[] members = new StructMember[ 7 ];
 103:                 TypeCode member;
 104:                 member = orb.create_string_tc(0);
 105:                 member =
 106:                   orb.create_alias_tc(IdentifierHelper.id(), "Identifier",
 107:                                       member
 108:                                      );
 109:                 members [ 0 ] = new StructMember("name", member, null);
 110:                 member = orb.create_string_tc(0);
 111:                 member =
 112:                   orb.create_alias_tc(RepositoryIdHelper.id(), "RepositoryId",
 113:                                       member
 114:                                      );
 115:                 members [ 1 ] = new StructMember("id", member, null);
 116:                 member = orb.create_string_tc(0);
 117:                 member =
 118:                   orb.create_alias_tc(RepositoryIdHelper.id(), "RepositoryId",
 119:                                       member
 120:                                      );
 121:                 members [ 2 ] = new StructMember("defined_in", member, null);
 122:                 member = orb.create_string_tc(0);
 123:                 member =
 124:                   orb.create_alias_tc(VersionSpecHelper.id(), "VersionSpec",
 125:                                       member
 126:                                      );
 127:                 members [ 3 ] = new StructMember("version", member, null);
 128:                 member = orb.create_string_tc(0);
 129:                 member = orb.get_primitive_tc(TCKind.tk_TypeCode);
 130:                 members [ 4 ] = new StructMember("type", member, null);
 131:                 member = IDLTypeHelper.type();
 132:                 members [ 5 ] = new StructMember("type_def", member, null);
 133:                 member = orb.get_primitive_tc(TCKind.tk_short);
 134:                 member =
 135:                   orb.create_alias_tc(VisibilityHelper.id(), "Visibility",
 136:                                       member
 137:                                      );
 138:                 members [ 6 ] = new StructMember("access", member, null);
 139:                 typeCode =
 140:                   orb.create_struct_tc(ValueMemberHelper.id(), "ValueMember",
 141:                                        members
 142:                                       );
 143:                 active = false;
 144:               }
 145:           }
 146:       }
 147:     return typeCode;
 148:   }
 149: 
 150:   /**
 151:    * Return the ValueMember repository id.
 152:    *
 153:    * @return "IDL:omg.org/CORBA/ValueMember:1.0", always.
 154:    */
 155:   public static String id()
 156:   {
 157:     return "IDL:omg.org/CORBA/ValueMember:1.0";
 158:   }
 159: 
 160:   /**
 161:    * Reads the value member from the given stream.
 162:    */
 163:   public static ValueMember read(InputStream istream)
 164:   {
 165:     try
 166:       {
 167:         ValueMember value = new ValueMember();
 168:         value.name = istream.read_string();
 169:         value.id = istream.read_string();
 170:         value.defined_in = istream.read_string();
 171:         value.version = istream.read_string();
 172:         value.type = TypeCodeHelper.read(istream);
 173:         value.type_def = IDLTypeHelper.read(istream);
 174:         value.access = istream.read_short();
 175:         return value;
 176:       }
 177:     catch (UserException ex)
 178:       {
 179:         MARSHAL m = new MARSHAL();
 180:         m.initCause(ex);
 181:         throw m;
 182:       }
 183:   }
 184: 
 185:   /**
 186:    * Writes the value member to the given stream.
 187:    */
 188:   public static void write(OutputStream ostream, ValueMember value)
 189:   {
 190:     try
 191:       {
 192:         ostream.write_string(value.name);
 193:         ostream.write_string(value.id);
 194:         ostream.write_string(value.defined_in);
 195:         ostream.write_string(value.version);
 196:         TypeCodeHelper.write(ostream, value.type);
 197:         IDLTypeHelper.write(ostream, value.type_def);
 198:         ostream.write_short(value.access);
 199:       }
 200:     catch (UserException ex)
 201:       {
 202:         MARSHAL m = new MARSHAL();
 203:         m.initCause(ex);
 204:         throw m;
 205:       }
 206:   }