Source for org.omg.CORBA.ServiceDetailHelper

   1: /* ServiceDetailHelper.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.Minor;
  42: import gnu.CORBA.OrbRestricted;
  43: import gnu.CORBA.ServiceDetailHolder;
  44: 
  45: import org.omg.CORBA.portable.InputStream;
  46: import org.omg.CORBA.portable.OutputStream;
  47: 
  48: /**
  49:  * The helper operations on the Service Detail.
  50:  *
  51:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  52:  */
  53: public abstract class ServiceDetailHelper
  54: {
  55:   /**
  56:    * The service detail repository id.
  57:    */
  58:   private static String _id = "IDL:omg.org/CORBA/ServiceDetail:1.0";
  59: 
  60:   /**
  61:    * Extract the service detail info from the given {@link Any}
  62:    *
  63:    * @param a the Any to extract from.
  64:    *
  65:    * @return the extracted detail.
  66:    *
  67:    * @throws BAD_OPERATION if the parameter holds something different
  68:    * from the ServiceDetail.
  69:    */
  70:   public static ServiceDetail extract(Any a)
  71:   {
  72:     try
  73:       {
  74:         return ((ServiceDetailHolder) a.extract_Streamable()).value;
  75:       }
  76:     catch (ClassCastException ex)
  77:       {
  78:         BAD_OPERATION bad = new BAD_OPERATION();
  79:         bad.initCause(ex);
  80:         bad.minor = Minor.Any;
  81:         throw bad;
  82:       }
  83:   }
  84: 
  85:   /**
  86:    * Get the service detail repository id.
  87:    *
  88:    * @return the service detail repository id,
  89:    * <code>IDL:omg.org/CORBA/ServiceDetail:1.0</code>, always.
  90:    */
  91:   public static String id()
  92:   {
  93:     return _id;
  94:   }
  95: 
  96:   /**
  97:    * Insert the service detail into the given {@link Any}.
  98:    *
  99:    * @param a the Any to insert into.
 100:    *
 101:    * @param that the detail to insert.
 102:    */
 103:   public static void insert(Any a, ServiceDetail that)
 104:   {
 105:     a.insert_Streamable(new ServiceDetailHolder(that));
 106:   }
 107: 
 108:   /**
 109:    * Read the service detail information from the given CDR
 110:    * intput stream. First reads the type, then the flexible
 111:    * length byte sequence.
 112:    *
 113:    * @param istream a stram to read from.
 114:    *
 115:    * @return the loaded service detail.
 116:    */
 117:   public static ServiceDetail read(InputStream istream)
 118:   {
 119:     ServiceDetail value = new ServiceDetail();
 120:     value.service_detail_type = istream.read_ulong();
 121: 
 122:     int l = istream.read_long();
 123:     value.service_detail = new byte[ l ];
 124:     istream.read_octet_array(value.service_detail, 0, l);
 125:     return value;
 126:   }
 127: 
 128:   /**
 129:    * Get the typecode of the service detail, assuming to be it
 130:    * a structure with the two fields.
 131:    *
 132:    * @return the newly created or cached typecode value.
 133:    */
 134:   public static TypeCode type()
 135:   {
 136:     ORB orb = OrbRestricted.Singleton;
 137:     
 138:     StructMember[] members = new StructMember[ 2 ];
 139:     
 140:     TypeCode type =
 141:       orb.create_alias_tc(_id, "ServiceDetailType",
 142:                           orb.get_primitive_tc(TCKind.tk_ulong)
 143:       );
 144:     members [ 0 ] = new StructMember("service_detail_type", type, null);
 145:     
 146:     TypeCode data =
 147:       orb.create_sequence_tc(0, orb.get_primitive_tc(TCKind.tk_octet));
 148:     members [ 1 ] = new StructMember("service_detail", data, null);
 149:     
 150:     return orb.create_struct_tc(id(), "ServiceDetail", members);
 151:   }
 152: 
 153:   /**
 154:    * Write the service detail data to the given CDR output stream.
 155:    * Writes the detail type first, then the detail type data
 156:    * as the variable length byte sequence.
 157:    *
 158:    * @param ostream a stream to write into.
 159:    * @param value a value to write.
 160:    */
 161:   public static void write(OutputStream ostream, ServiceDetail value)
 162:   {
 163:     ostream.write_ulong(value.service_detail_type);
 164:     ostream.write_long(value.service_detail.length);
 165:     ostream.write_octet_array(value.service_detail, 0,
 166:       value.service_detail.length
 167:     );
 168:   }